Cabletron Systems Switch SFCS 200BX User Manual

MMAC-Plus9A000, SFCS-200BX,  
SFCS-200WG and SFCS-1000  
ATM SWITCH  
User’s Guide  
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Notice  
Notice  
Cabletron Systems reserves the right to make changes in specifications and other information  
contained in this document without prior notice. The reader should in all cases consult Cabletron  
Systems to determine whether any such changes have been made.  
The hardware, firmware, or software described in this manual is subject to change without notice.  
IN NO EVENT SHALL CABLETRON SYSTEMS BE LIABLE FOR ANY INCIDENTAL, INDIRECT,  
SPECIAL, OR CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING BUT NOT LIMITED  
TO LOST PROFITS) ARISING OUT OF OR RELATED TO THIS MANUAL OR THE INFORMATION  
CONTAINED IN IT, EVEN IF CABLETRON SYSTEMS HAS BEEN ADVISED OF, KNOWN, OR  
SHOULD HAVE KNOWN, THE POSSIBILITY OF SUCH DAMAGES.  
© Copyright April 1996 by:  
Cabletron Systems, Inc.  
35 Industrial Way  
Rochester, NH 03867-0505  
All Rights Reserved  
Printed in the United States of America  
Order Number: 9031473-03  
LANVIEW is a registered trademark of Cabletron Systems, Inc.  
MMAC-Plus is a trademark of Cabletron Systems, Inc.  
CompuServe is a registered trademark of CompuServe, Inc.  
i
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Notice  
FCC Notice  
This device complies with Part 15 of the FCC rules. Operation is subject to the following two  
conditions: (1) this device may not cause harmful interference, and (2) this device must accept any  
interference received, including interference that may cause undesired operation.  
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital  
device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable  
protection against harmful interference when the equipment is operated in a commercial environment.  
This equipment uses, generates, and can radiate radio frequency energy and if not installed in  
accordance with the operator’s manual, may cause harmful interference to radio communications.  
Operation of this equipment in a residential area is likely to cause interference in which case the user  
will be required to correct the interference at his own expense.  
WARNING: Changes or modifications made to this device which are not expressly approved by the  
party responsible for compliance could void the user’s authority to operate the equipment.  
VCCI Notice  
This equipment is in the 1st Class Category (information equipment to be used in commercial and/or  
industrial areas) and conforms to the standards set by the Voluntary Control Council for Interference  
by Information Technology Equipment (VCCI) aimed at preventing radio interference in commercial  
and/or industrial areas.  
Consequently, when used in a residential area or in an adjacent area thereto, radio interference may be  
caused to radios and TV receivers, etc.  
Read the instructions for correct handling.  
ii  
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Table of Contents  
Preface  
Technical Support.......................................................................................................vii  
Typographical Styles..................................................................................................vii  
Important Information Indicators ..........................................................................viii  
Laser Warning............................................................................................................... x  
Safety Agency Compliance........................................................................................ xi  
Safety Precautions................................................................................................ xi  
Symbols ................................................................................................................. xi  
Modifications to Equipment.............................................................................. xii  
Placement of a Cabletron Systems Product .................................................... xii  
Power Cord Connection..................................................................................... xii  
Chapter 1  
Introduction  
1.1 Overview of the ATM Standard........................................................................ 1-1  
1.2 Hardware Description......................................................................................... 1-2  
1.2.1 Front Panel Description ........................................................................... 1-4  
1.2.2 9A000 and SFCS Series Hardware Configuration................................ 1-4  
1.2.3 9A000 and SFCS Series Switch Board .................................................... 1-4  
1.2.4 Switch Control Processor......................................................................... 1-5  
1.2.5 9A000 and SFCS Series Network Modules ........................................... 1-5  
1.2.6 Environmental Information..................................................................... 1-5  
1.2.7 Standards Compliance ............................................................................. 1-7  
1.2.8 Safety Compliance .................................................................................... 1-7  
1.2.9 Emissions Compliance ............................................................................. 1-7  
1.2.10 Electromagnetic Compatibility (EMC) ................................................ 1-7  
1.3 Software Description ........................................................................................... 1-7  
1.3.1 Switch Control Software .......................................................................... 1-7  
Chapter 2  
Chapter 3  
Installing the 9A000  
2.1 Installing the 9A000 ............................................................................................. 2-1  
2.2 The Reset Switch .................................................................................................. 2-3  
Switch Hardware  
3.2 Switch Hardware Components.......................................................................... 3-5  
3.2.1 Switch Board.............................................................................................. 3-5  
3.2.2 Switch Control Processor......................................................................... 3-5  
3.2.2.1 i960 Switch Control Processor ....................................................... 3-6  
3.2.3 Network Modules..................................................................................... 3-9  
3.2.3.1 Port Numbering............................................................................... 3-9  
3.2.4 Power Supply Modules.......................................................................... 3-11  
3.2.4.1 SFCS-200BX AC Power Supply ................................................... 3-11  
iii  
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Contents  
3.2.4.2 SFCS-1000 AC Power Supply (Model A)....................................3-12  
3.2.4.3 SFCS-1000 AC Power Supply (Model B) ....................................3-15  
3.2.5 SFCS-1000 Fan Tray ................................................................................3-18  
3.2.6 SFCS-1000 Temperature Sensing...........................................................3-18  
3.2.7 SFCS-1000 Common Equipment Card (CEC).....................................3-19  
3.2.7.1 CEC Front Panel.............................................................................3-19  
3.2.7.2 Alarm Relay Contacts....................................................................3-19  
3.2.7.3 CEC Status LEDs............................................................................3-21  
3.2.7.4 Ethernet Port...................................................................................3-22  
Chapter 4  
Switch Setup  
4.2 Unpacking .............................................................................................................4-1  
4.2.1 Inventorying the Unit................................................................................4-2  
4.3 Electrical Considerations.....................................................................................4-3  
4.4 Rack-Mounting an SFCS-200BX.........................................................................4-4  
4.4.1 Required Tools............................................................................................4-4  
4.4.2 Installing the Rack-mount Brackets.........................................................4-5  
4.5 Rack-Mounting an SFCS-200WG.......................................................................4-7  
4.5.1 Required Tools............................................................................................4-7  
4.5.2 Installing the Rack-mount Brackets.........................................................4-8  
4.6 Rack-Mounting an SFCS-1000..........................................................................4-10  
4.6.1 Installing the SFCS-1000.......................................................................... 4-11  
4.7 Installing the Serial Cable .................................................................................4-12  
4.8 Modem Configuration.......................................................................................4-13  
4.8.1 Modem Parameters..................................................................................4-13  
4.9 Configuring IP Addresses.................................................................................4-14  
4.10 AMI Security.....................................................................................................4-15  
4.11 Subsequent Operation .....................................................................................4-15  
4.12 Verifying the Installation.................................................................................4-16  
4.13 Product Registration Information..................................................................4-16  
Chapter 5  
Hardware Maintenance Procedures  
5.1.1 Overview.....................................................................................................5-1  
5.1.2 Multicast Mode...........................................................................................5-2  
5.1.3 Hot-swapping Network Modules ...........................................................5-3  
5.2 Power Supply Module Replacement.................................................................5-4  
5.2.1 SFCS-200BX Power Supply Module Replacement................................5-4  
5.2.1.1 Replacing an SFCS-200BX AC Power Supply..............................5-4  
5.2.2 SFCS-1000 Power Supply Module Replacement...................................5-6  
5.2.2.1 Replacing an SFCS-1000 AC Power Supply (Model A)..............5-6  
5.2.2.2 Replacing an SFCS-1000 AC Power Supply (Model B) ..............5-9  
5.3 SFCS-1000 Fan Tray Replacement....................................................................5-12  
5.4 Switch Control Processor Replacement ..........................................................5-13  
5.5 Switch Board Replacement ...............................................................................5-15  
iv  
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Contents  
Chapter 6  
Software Upgrade Instructions  
6.1 Obtaining the Software Upgrade File via Diskette ......................................... 6-2  
6.2 Performing the Software Upgrade .................................................................... 6-4  
6.3 Changing between Multiple Versions of Software.......................................... 6-7  
6.4 Using bootp to Download Software to the Switch.......................................... 6-9  
6.4.1 Overview..................................................................................................... 6-9  
6.4.2 Setting Up Your bootp Server .................................................................. 6-9  
6.4.3 Adding an Entry for Your Switch in the bootptab File....................... 6-10  
6.4.4 Setting Up a tftpboot Server................................................................... 6-12  
Appendix A  
Troubleshooting  
A.1.1 Run Looptest ............................................................................................ A-3  
A.1.2 Check Self-Test (Automatically Performed) ........................................ A-4  
A.1.3 Firmware Download (Automatically Performed) .............................. A-4  
A.1.4 Hardware Detected by Driver ............................................................... A-5  
A.1.5 Check Firmware....................................................................................... A-6  
A.1.6 Check Physical Link ................................................................................ A-7  
A.2 Testing Network Connectivity Using PVCs................................................... A-8  
A.2.1 Verifying the Outgoing ATM ARP Entry............................................ A-11  
A.2.2 atmstat..................................................................................................... A-12  
A.2.2.1 No Cells Received by Remote End ........................................... A-13  
A.2.2.2 Cells and VPI/VCI Errors Received by Remote ..................... A-13  
A.2.2.3 Cells and AAL* Errors Received by Remote ........................... A-13  
A.2.2.4 Cells and No Errors Received by Remote and Transmitting No  
Cells ........................................................................................................ A-14  
A.2.2.5 Cells and No Errors Received by Remote and Transmitting Cells  
A-14  
A.3 Collecting Additional Information................................................................ A-15  
A.3.1 Basic Information................................................................................... A-15  
A.3.2 Adapter Information ............................................................................. A-15  
A.3.3 Switch Information................................................................................ A-18  
Appendix B  
SCP Diagnostics  
B.1.1 Accessing the Monitor Mode...................................................................B-2  
B.1.2 Running the Hardware Tests ...................................................................B-4  
B.1.2.1 Clock Test .........................................................................................B-4  
B.1.2.2 DRAM Test.......................................................................................B-4  
B.1.2.3 DRAM Chip Test .............................................................................B-5  
B.1.2.4 Ethernet Test.....................................................................................B-5  
B.1.2.5 FLASH Test ......................................................................................B-5  
B.1.2.6 FLASH Chip Test.............................................................................B-6  
B.1.2.7 Serial Port Test .................................................................................B-7  
B.1.2.8 SRAM Test........................................................................................B-7  
B.1.2.9 Timer Test .........................................................................................B-7  
B.1.2.10 Hardware Test................................................................................B-7  
B.1.2.11 Complete Hardware Test..............................................................B-8  
v
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Contents  
Appendix C  
Hardware Specifications  
C.1.1 SFCS-200WG............................................................................................ C-2  
C.1.2 SFCS-200BX.............................................................................................. C-3  
C.1.3 SFCS-1000.................................................................................................. C-4  
C.2 ATM Network Modules.................................................................................... C-5  
C.2.1 100 Mbps TAXI Module .......................................................................... C-5  
C.2.2 155 Mbps OC-3c/STM-1 MM Module.................................................. C-6  
C.2.3 155 Mbps STS-3c/STM-1 UTP Module................................................. C-7  
C.2.3.1 155 Mbps UTP Pinout Specifications .......................................... C-8  
C.2.3.2 Connecting Switches with 155 Mbps UTP Network Modules C-8  
C.2.4 622 Mbps OC-12c/STM-4c MM Module .............................................. C-9  
C.2.5 25 Mbps TP25 Module........................................................................... C-10  
C.2.5.1 Connecting Switches with TP25 Network Modules............... C-11  
C.2.5.2 Connecting Switches with Token Ring Pinouts to Cabletron  
Switches ................................................................................................. C-11  
C.2.5.3 Connecting Adapters with Token Ring Pinouts to Cabletron  
Switches ................................................................................................. C-12  
C.2.6 34 Mbps E3 Module ............................................................................... C-13  
C.2.7 45 Mbps DS3 Module ............................................................................ C-14  
C.2.8 155 Mbps OC-3c/STM-1 SM Module.................................................. C-15  
C.2.9 155 Mbps OC-3c/STM-1 3MM/1SM Module.................................... C-16  
C.2.10 622 Mbps OC-12c/STM-4c SM Module............................................ C-18  
C.3 ATM Adapters.................................................................................................. C-19  
C.3.1 Adapter Cabling Specifications............................................................ C-19  
C.3.1.1 Fiber-Optic Cable Specifications................................................ C-19  
C.3.1.2 UTP Cable Specifications ............................................................ C-20  
C.3.1.3 UTP Pinouts.................................................................................. C-20  
C.3.2 ESA-200PC Technical Specifications.................................................... C-21  
C.3.3 PCA-200PC Technical Specifications................................................... C-22  
C.3.4 PCA-200MAC Technical Specifications .............................................. C-23  
C.3.5 NBA-200 Technical Specifications........................................................ C-24  
C.3.6 GIA-200 Technical Specifications......................................................... C-25  
C.3.7 HPA-200 Technical Specifications........................................................ C-26  
C.3.8 MCA-200 Technical Specifications....................................................... C-27  
C.3.9 SBA-200 Technical Specifications......................................................... C-28  
C.3.10 ESA-200 Technical Specifications....................................................... C-29  
C.3.11 VMA-200 Technical Specifications..................................................... C-30  
vi  
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PREFACE  
This manual provides technical information needed to install and operate the  
CabletronTM 9A000 and SecureFast Cell Switch-200BX ATM Switches. It pro-  
vides information for the 9A000 and SFCS-200BX switches and the user-  
installable network modules offering both LAN and WAN interfaces. This  
document also provides safety instructions, general product information, net-  
work configuration information and information on software administration  
capabilities.  
Technical Support  
In the U.S.A., you can contact Cabletron Systems’ Technical Support by any  
one of four methods:  
By phone:  
Monday through Friday between 8 A.M. and  
8 P.M. Eastern Standard Time at (603) 332-  
9400  
®
By CompuServe :  
By Internet mail:  
By mail:  
GO CTRON from any ! prompt  
Cabletron Systems, Inc.  
P.O. Box 5005  
Rochester, NH 03867-0505  
By FAX:  
(603) 335-4743  
Technical support for non-U.S.A. customers should be handled through your  
local distributor.  
No matter which method is used for technical support, please be prepared to  
provide your support contract ID number, the serial number(s) of the prod-  
uct(s), and as much information as possible describing your problem/ques-  
tion.  
Typographical Styles  
Throughout this manual, all specific commands meant to be entered by the  
user will appear on a separate line in bold Ava nt Ga rd e typeface. In addi-  
tion, use of the Ente r or Re turn key will be represented as <ENTER>. The fol-  
lowing example demonstrates this convention.  
vii  
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PREFACE  
c d / usr <ENTER>  
Commands or file names that appear within the text of this manual will be  
represented in the following style: “...the fo re _insta ll program will install this  
distribution”.  
As in the following example, any messages that appear on your screen during  
software installation and network interface administration will appear in  
Courierfont to distinguish them from the rest of the text.  
.... Are all four conditions true?  
Important Information Indicators  
To call your attention to safety and otherwise important information that  
must be reviewed to insure correct and complete installation, as well as to  
avoid damage to the ForeRunner Switch or your system, Cabletron Systems  
utilizes the following WARNING/CAUTION/NOTE indicators.  
WARNING statements contain information that is critical to the safety of the  
operator and/or the system. Do not proceed beyond a WARNING statement  
until the indicated conditions are fully understood or met. This information  
could prevent serious injury to the operator, damage to the ForeRunner  
Switch, the system, or currently loaded software, and will be indicated as fol-  
lows:  
WARNING!  
Hazardous voltages are present. If the instruc-  
tions are not heeded, there is a risk of electrical  
shock and danger to personal health.  
Information contained in CAUTION statements is important for proper  
installation/operation. CAUTION statements can prevent possible equip-  
ment damage and/or loss of data and will be indicated as:  
CAUTION  
You risk damaging your equipment and/or  
software if you do not follow these  
instructions.  
viii  
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PREFACE  
Information contained in NOTE statements has been found important  
enough to be called to the special attention of the operator and will be set off  
from the text as follows:  
NOTE: Cabletron Systems strongly recommends that  
you disconnect the serial cable once you have  
configured the ATM switch and then access  
the switch over the ATM network.  
ix  
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PREFACE  
Laser Warning  
Class 1 Laser Product:  
This product conforms to  
applicable requirements of  
21 CFR 1040 at the date of  
manufacture.  
Class 1 lasers are defined as products which do not permit human access to  
laser radiation in excess of the accessible limits of Class 1 for applicable wave-  
lengths and durations. These lasers are safe under reasonably foreseeable  
conditions of operation.  
The following network modules contain Class 1 lasers:  
NM-2/155SMSRA-1  
NM-4/155SMSRA-1  
NM-2/155SMSRB-1  
NM-4/155SMSRB-1  
NM-2OC3/SMSRA-1  
NM-4OC3/SMSRA-1  
NM-4OC3/SMSRA-1A NM-4OC3/SMSRB-1 NM-2/155SMSRC  
NM-4/155SMSRC  
NM-2/155SMLRC-1  
NM-4/155SMLRB-1  
NM-2/155SMLRA-1  
NM-2/155SMLRB-1  
NM-2OC3/SMLRB-1 NM-2OC3/SMMRA-1  
NM-4/155SMLRC-1  
NM-4OC3/SMLRB-1  
NM-4/155LR3SCC  
NM-4OC3/SMMRA-1 NM-1/622SMIRC  
NM-4/155SR3SCC  
x
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PREFACE  
Safety Agency Compliance  
This preface provides safety precautions to follow when installing a  
Cabletron Systems, Inc., product.  
Safety Precautions  
For your protection, observe the following safety precautions when setting up  
your equipment:  
• Follow all warnings and instructions marked on the equipment.  
• Ensure that the voltage and frequency of your power source matches  
the voltage and frequency inscribed on the equipment’s electrical rat-  
ing label.  
• Never push objects of any kind through openings in the equipment.  
Dangerous voltages may be present. Conductive foreign objects  
could produce a short circuit that could cause fire, electric shock, or  
damage to your equipment.  
Symbols  
The following symbols appear in this book:  
WARNING!  
Hazardous voltages are present. If the instruc-  
tions are not heeded, there is a risk of electrical  
shock and danger to personal health.  
CAUTION  
You risk damaging your equipment and/or  
software if you do not follow these  
instructions.  
xi  
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PREFACE  
Modifications to Equipment  
Do not make mechanical or electrical modifications to the equipment.  
Cabletron Systems, Inc., is not responsible for regulatory compliance of a  
modified product.  
Placement of a Cabletron Systems Product  
CAUTION  
To ensure reliable operation of your Cabletron  
Systems product and to protect it from over-  
heating, openings in the equipment must not  
be blocked or covered. A Cabletron Systems  
product should never be placed near a radia-  
tor or heat register.  
Power Cord Connection  
WARNING!  
Cabletron Systems products are designed to  
work with single-phase power systems hav-  
ing a grounded neutral conductor. To reduce  
the risk of electrical shock, do not plug  
Cabletron Systems products into any other  
type of power system. Contact your facilities  
manager or a qualified electrician if you are  
not sure what type of power is supplied to  
your building.  
WARNING!  
Your Cabletron Systems product is shipped  
with a grounding type (3-wire) power cord. To  
reduce the risk of electric shock, always plug  
the cord into a grounded power outlet.  
xii  
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CHAPTER 1 Introduction  
The Cabletron 9A000 and SFCS series ATM Switch brings ATM connectivity to  
LAN workgroup, LAN backbone, and LAN/WAN internetworking applica-  
tions. Together with the Cabletron series of ATM Computer Interfaces, the  
9A000 and SFCS series meet the networking demands of today’s distributed,  
time-critical applications.  
The Cabletron 9A000 and SFCS series ATM high-performance ATM switches  
deliver switching capacity and speed for ATM applications. A non-blocking  
switching capacity of 2.5 Gbps is continually available for connectivity to 16  
users or networking devices, each running at speeds up to 622 Mbps or 24  
users or network devices running at 100 Mbps.  
This chapter provides an overview of the ATM Standard and Cabletron Sys-  
tems 9A000 and SFCS series Switches. It details the hardware and software  
requirements necessary to use the 9A000 and SFCS series and also provides  
information on the contents of the 9A000 and SFCS series Switch packages.  
1.1  
Overview of the ATM Standard  
Asynchronous Transfer Mode, or ATM, is a communication architecture  
based on the switching of small fixed length packets of data called cells. In  
ATM, all data is transferred in 53-byte cells. Each cell has a 5-byte header that  
identifies the cell’s route through the network and 48-bytes containing user  
data. This user data in turn carries any headers or trailers required by higher  
level protocols.  
The operation of an ATM switch is conceptually quite simple. The header of  
each cell contains a virtual connection (VC) identifier, consisting of a virtual  
path identifier (VPI) and a virtual channel identifier (VCI). On each incoming  
link, an arriving cell’s VC identifier uniquely determines a new VC identifier  
to be placed in the cell header, and the outgoing link over which to transmit  
the cell. In the case of a multicast connection, the VC identifier maps to a set of  
new VC identifiers and outgoing links.  
Perhaps the single most important advantage offered by ATM, in addition to  
the speed at which data is transferred, is its open-ended growth path. ATM is  
not locked into a single physical medium or speed. The fixed-size ATM cell  
allows traffic from multiple sources (simultaneous video, audio, and data  
1-1  
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Introduction  
communication) to be switched to multiple destinations by fast ATM switches  
such as the Cabletron 9A000 and SFCS series (connecting up to 64 workstations  
with an aggregate capacity of 2.5 Gbps or 96 workstations running at 100  
Mbps). Larger LANs can be built by interconnecting multiple 9A000 and SFCS  
series ATM switches.  
Based upon international standards developed by the CCITT, ATM allows for  
fast packet switching of cells, 53 bytes in length. By using small cells to trans-  
fer data, coupled with a low latency switch supporting isochronous timing,  
ATM is able to support a wide range of audio, video, image, and data com-  
munications requirements.  
Unlike shared-medium LAN technologies such as Ethernet and Token Ring,  
in which users must contend for bandwidth, ATM switching provides dedi-  
cated, deterministic, high-speed connectivity. In addition, ATM is scalable  
from 155 Mbps to 2.5 Gbps - to the desktop, or for the entire network.  
1.2 Hardware Description  
The 9Cabletron 9A000 and SFCS series ATM switches, as shown in Figure 1-1  
and Figure 1-2, provide connectivity for up to 16 computer workstations,  
hubs, or routers at rates operating up to 622 Mbps/sec (or 24 workstations  
running at 100 Mbps) via dedicated fiber optic links and twisted pair links.  
Wide-area network (WAN) connectivity is seamlessly integrated into the  
9A000 and SFCS series for connection to private networks or ATM SONET,  
DS-3, DS-1, E-3, or J-2 services.  
Interconnecting multiple 9A000 and SFCS series switches at various speeds is  
simple. Once a new 9A000 and SFCS series switch is added to the network,  
all other switches recognize its presence and dynamically establish connec-  
tions to ports on the new switch. Furthermore, scaling the network is accom-  
plished without costly and time consuming address reconfiguration and LAN  
segmentation.  
The 9A000 and SFCS series is a self-contained ATM switch that includes an  
Ethernet connection to provide network management access.  
1-2  
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Introduction  
Figure 1.1 - 9A000 Switch Configuration  
1-3  
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Introduction  
SecureFast Cell Switch-200BX  
5
VOLT  
5
VOLT  
RX1  
RX2  
RX3  
RX4  
RX1  
RX2  
RX3  
RX4  
TX1  
RX1  
TX2  
RX2  
TX3  
RX3  
TX4  
RX4  
TX1  
RX1  
TX2  
RX2  
TX3  
RX3  
TX4  
RX4  
TX1  
TX2  
TX3  
TX4  
TX1  
TX2  
TX3  
TX4  
Tx  
C
Rx  
L
PWR  
RESET  
SFCS  
SELECT  
NEXT  
ETH  
SER  
Figure 1.2 - SFCS-200BX Switch Configuration  
1.2.1 Front Panel Description  
The front panel of the 9A000 and SFCS series includes the following features:  
a power switch, two power supply LEDs, a RESET button, an RS-232 serial  
port, an Ethernet 10BaseT port, a NEXT pushbutton, a SELECT pushbutton, a  
display LED, and a power LED. For more information about these features,  
please refer to Appendix A of this manual.  
1.2.2 9A000 and SFCS Series Hardware Configuration  
The 9A000 and SFCS series hardware consists of a switch board, an i960  
switch control processors, and network modules. These components work  
together to provide ATM switching capabilities, as well as distributed connec-  
tion set-up and management. A functional description for each component  
follows.  
1.2.3 9A000 and SFCS Series Switch Board  
The 9A000 and SFCS series switch board contains the VPI/VCI lookup tables,  
and routing circuitry to ensure that a cell received from an input port is cor-  
rectly switched to one or more output ports. The 9A000 and SFCS series  
switch board can accept up to four network modules, which themselves con-  
tain up to six ports each. The switch board also has an interface, controlled by  
the switch control processor, that is functionally equivalent to an ATM host  
interface. (See Switch Control Software for more information).  
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Introduction  
1.2.4 Switch Control Processor  
The i960 switch control processor provides the distributed connection set-up  
for a network of ATM switches. The switch control processor primarily pro-  
vides management access through SNMP and is responsible for storing and  
updating all SNMP management information. Additionally, the switch con-  
trol processor can access the ATM switch in-band in very much the same  
manner as an ATM adapter in a workstation (such as the Fore SBA-200 SBus  
Adapter). Since it has the ability to communicate over IP, the 9A000 and SFCS  
series can route IP traffic from one given IP network to another. The switch  
control processor, and associated software, manages the behavior of the  
9A000 and SFCS series switch board (i.e., connection setup), but is not  
involved in the actual cell switching.  
1.2.5 9A000 and SFCS Series Network Modules  
The network modules for the 9A000 and SFCS series act as the physical  
input/output ports to the 9A000 and SFCS series switch. A network module  
may have up to six physical ports, depending on its physical configuration.  
There is also a logical control port located inside the SCP which is referred to  
in the switch software as the Control Port (CTL). This control port is a logical  
(not physical) location where cells that are directed to the SCP itself are sent.  
(See section 1.4.1 for more information.)  
1.2.6 Environmental Information  
In the 9A000 and SFCS series, there is a temperature sensor, located over the  
switch fabric area of the enclosure, which ensures that the internal cabinet  
temperature is not too high. This temperature is displayed on the Environ-  
mental Module LCD readout, within the MMAC Plus chassis. The power uti-  
lization for the 9A000 and SFCS series is also monitored and can be displayed  
on the Environmental Module.  
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Introduction  
Table 1.1 - System Hardware and Environmental Specifications  
Features  
SFCS Series/9A000  
2.5 Gbps  
Switching Fabric  
non-blocked  
Traffic Policing  
UNI 3.1 dual leaky  
bucket support  
Number of Ports  
up to 24 ports  
Switch Transit Delay  
Connection Setup Time  
Maximum Port Speed  
< 10 microseconds  
< 10 milliseconds  
622 Mbps  
(OC-12/STM-4)  
Power (nominal)  
Dimensions  
90 - 270 VAC @ 47 - 63 Hz  
2.2 amps maximum  
H: 4.75” (12.1 cm)  
W: 17.5” (44.5 cm)  
D: 18” (45.7 cm)  
Weight  
43 lbs (19.5 kg)  
Operating Temperature  
5˚C to 40˚C  
up to 10,000 ft  
Operating Humidity  
Storage Temperature  
10 to 90% RH  
-40˚C to 70˚C  
up to 30,000 ft  
Storage Humidity  
5 to 95% RH  
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Introduction  
1.2.7 Standards Compliance  
ITU I.361 ATM Layer  
ATM Forum UNI 3.0  
1.2.8 Safety Compliance  
US: UL 1950  
Canada: CSA 22.2 No. 950-M89  
Europe: EN 60950  
1.2.9 Emissions Compliance  
FCC Part 15, Class A  
CISPR 22, Class A  
VCCI, Class 1  
1.2.10 Electromagnetic Compatibility (EMC)  
The following all comprise EN 50082-1:  
ESD Susceptibility: IEC 801-2, Level 3  
Radiated Susceptibility: IEC 801-3, Level 2  
Electrical Fast Transient Compatibility: IEC 801-4, Level 2  
1.3 Software Description  
The software for the 9A000 and SFCS series runs on a FLASH file system to  
accomplish switch and connection management, IP connectivity, and SNMP  
network management.  
1.3.1 Switch Control Software  
The Switch Control Software (SCS) is the “brains” of the 9A000 and  
SFCS series switches. The SCS controls the 9A000 and SFCS series switch  
board and handles connection set-up and tear-down duties. The SCS can also  
communicate with other Cabletron Systems switches using the SPANS NNI  
protocol to learn network topology and establish connections across multiple  
switches. In addition, there is an SNMP agent built into the SCS to allow  
SNMP management and control.  
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Introduction  
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CHAPTER 2 Installing the 9A000  
This chapter contains the procedures for installing the 9A000. The installation  
of the SFCS series is covered in Chapter 3.  
2.1 Installing the 9A000  
To install the Cabletron 9A000, follow the steps below:  
1. Switch off the power supplies and remove all power from the  
MMAC-Plus chassis.  
2. Remove the blank panels, covering the slots that the module is  
being mounted in. All other slots must be covered, if modules are  
not being installed, to ensure proper airflow and cooling.  
3. Carefully remove the module from the shipping box. (Save the  
box and packing materials in the event the module must be  
reshipped.)  
4. Attach one end of the ESD wrist strap packaged with the MMAC-  
Plus chassis to your wrist. Plug the other end into the ESD Wrist  
Strap Grounding receptacle in the lower right corner of the  
5. Remove the module from the plastic bag. Observe all precautions  
to prevent damage from Electrostatic Discharge (ESD).  
6. Carefully examine the module, checking for damage. If any dam-  
age exists, DO NOT install the module. Contact Cabletron  
Systems Technical Support immediately.  
7. The modules are installed into the chassis by sliding them into  
slots and locking down both the top and bottom plastic tabs, as  
shown in Figure 2.1. Take care that the module slides in straight  
and engages the backplane connectors properly. When installing  
the module, ensure that both circuit cards are between the card  
tracks of both cards.  
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Installing the 9A000  
L
L
L
N
S
I
N
S
I
Jack for ESD  
wrist strap  
Metal Back-Panel  
Circuit Card  
Card Guides  
Warning:  
Ensure that the circuit card is between the card guides.  
Lock down the top and bottom plastic tabs  
at the same time, applying even pressure.  
Figure 2.1 - Installing the 9A000 Module  
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Installing the 9A000  
2.2 The Reset Switch  
The Reset switch is located on the rightmost front panel, under the top plastic  
• Pressing the reset switch twice within three seconds causes the pro-  
cessor (i960) to reset.  
• Pressing and holding the switch on for three or more seconds causes  
the module to shutdown. Pressing and holding again for three sec-  
onds restarts the module.  
SNMP management may be used to disable this switch to enhance module  
security.  
Reset Switch  
SMB  
CPU  
Figure 2.2 - The Reset Switch  
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Installing the 9A000  
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CHAPTER 3 Switch Hardware  
Cabletron Systems offers a full line of ATM products that work together to  
provide a complete ATM network solution. The Cabletron SFCS-200WG ATM  
switch provide high-performance ATM connectivity for LAN workgroup and  
desktop applications. The SFCS-200BX ATM switch and the SFCS-1000 ATM  
switch offer high reliability and port density for LAN backbone and LAN/  
WAN internetworking applications. Together with the Cabletron series of  
ATM LAN and WAN Network Modules, these switches meet the networking  
demands of today’s distributed, time-critical applications.  
All of the Cabletron ATM switches deliver high-performance switching  
capacity and speed for ATM applications. A non-blocking switching capacity  
of 2.5 Gbps is continually available on the SFCS-200WG, and the SFCS-200BX.  
Each switch provides up to 4 ports of connectivity, each running at speeds up  
to 622 Mbps; or up to 16 ports, each running at speeds up to 155 Mbps; or up  
to 24 ports, each running at speeds up to 100 Mbps. The SFCS-1000 provides  
10 Gbps of switching capacity for up to 16 ports of connectivity, each running  
at speeds up to 622 Mbps; or up to 64 ports, each running at speeds up to 155  
Mbps; or up to 96 ports, each running at speeds up to 100 Mbps.  
Wide-area network (WAN) connectivity is seamlessly integrated into the  
SFCS-200BX and the SFCS-1000 for connection to private networks or ATM  
SONET, DS3 and E3 services.  
Interconnecting multiple Cabletron switches at various speeds is simple.  
Once a new Cabletron switch is added to the network, all other switches rec-  
ognize its presence and dynamically establish connections to ports on the  
new switch. Furthermore, scaling the network is accomplished without costly  
and time consuming address reconfiguration and LAN segmentation.  
This chapter provides an overview of the Cabletron Systems’ family of ATM  
switches. It details the hardware requirements necessary to use these switches  
and also provides information on the contents of each of the switch packages.  
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Switch Hardware  
3.1 Switch Hardware Configurations  
The SFCS-200WG, as shown in Figure 3.1, is a self-contained ATM switch that  
provides an Ethernet connection for network management access. The  
SFCS-200WG ATM switch hardware consists of a single switch board with an  
i960 SCP, network modules, and fans. These components work together to  
provide ATM switching capabilities, as well as distributed connection setup  
and management.  
SecureFast SFCS-200WG  
5
VOLT  
RX1  
RX2  
RX3  
RX4  
RX1  
RX2  
RX3  
RX4  
TX1  
RX1  
TX2  
RX2  
TX3  
RX3  
TX4  
RX4  
TX1  
RX1  
TX2  
RX2  
TX3  
RX3  
TX4  
RX4  
TX1  
TX2  
TX3  
TX4  
TX1  
TX2  
TX3  
TX4  
Tx  
C
Rx  
L
PWR  
RESET  
SELECT  
NEXT  
ETH  
SER  
Figure 3.1 - SFCS-200WG Switch Configuration  
The SFCS-200BX, as shown in Figure 3.2, is a self-contained ATM switch that  
provides an Ethernet connection for network management access. The  
SFCS-200BX hardware consists of a single switch board with an i960 SCP, net-  
work modules, redundant power supplies, and fans. These components work  
together to provide ATM switching capabilities, as well as distributed connec-  
tion setup and management.  
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Switch Hardware  
SecureFast SFCSSFCS-200BX  
RX1  
RX2  
RX3  
RX4  
RX1  
RX2  
RX3  
RX4  
TX1  
RX1  
TX2  
RX2  
TX3  
RX3  
TX4  
RX4  
TX1  
RX1  
TX2  
RX2  
TX3  
RX3  
TX4  
RX4  
TX1  
TX2  
TX3  
TX4  
TX1  
TX2  
TX3  
TX4  
Tx  
C
Rx  
L
PWR  
RESET  
SELECT  
NEXT  
ETH  
SER  
Figure 3.2 - SFCS-200BX Switch Configuration  
The SFCS-1000, as shown in Figure 3.3, is a self-contained ATM switch that  
provides an Ethernet connection for network management access. The hard-  
ware for the SFCS-1000 consists of up to four switch boards, each with an i960  
SCP; network modules; redundant power supplies; a Common Equipment  
Card (CEC); and a removable fan tray. These components work together to  
provide ATM switching capabilities, as well as distributed connection setup  
and management.  
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Switch Hardware  
SFCS-1000  
48V DC  
48V DC  
CB1  
CB1  
TB1  
TB1  
Figure 3.3 - SFCS-1000 Switch Configuration  
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Switch Hardware  
3.2 Switch Hardware Components  
3.2.1 Switch Board  
The switch board (also referred to as the “switch fabric”) contains the VPI/  
VCI lookup tables and routing circuitry to ensure that a cell received from an  
input port is correctly switched to one or more output ports. The SFCS-  
200WG, and the SFCS-200BX each come with one switch board. The  
SFCS-1000 can be populated with as many as four switch boards. Each switch  
board can accept up to four network modules, which themselves can contain  
up to six ports each. The switch board also has an interface, controlled by the  
SCP, that is functionally equivalent to an ATM host interface.  
3.2.2 Switch Control Processor  
The i960 SCP in the SFCS-200WG, SFCS-200BX, and the SFCS-1000 provide  
the distributed connection setup for a network of ATM switches. The SCP pri-  
marily provides management access through SNMP and is responsible for  
storing and updating all SNMP management information. Additionally, the  
SCP has direct access to the switch board. The SCP, and associated software,  
manages the behavior of the switch board (i.e., connection setup), but is not  
involved in the actual cell switching.  
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Switch Hardware  
3.2.2.1  
i960 Switch Control Processor  
The front panel of an i960 SCP for the SFCS-200WG, SFCS-200BX, and the  
SFCS-1000 includes the following features: a RESET button, an RS-232 serial  
port, an Ethernet 10BaseT port, a NEXT pushbutton, a SELECT pushbutton, a  
display LED, and a power LED. All of the features are illustrated in Figure 3.4  
and are described in detail in the subsections that follow.  
Tx  
C
Rx  
L
PWR  
RESET  
ETH  
SER  
NEXT  
SELECT  
Figure 3.4 - i960 Switch Control Processor Front Panel  
3.2.2.1.1  
RESET Button  
The RESET button allows the user to reset the switch control software on the  
SCP. Using RESET “soft boots” the SCP and runs the initial power-on diag-  
nostics. All open AMI sessions are ended by the SCP, and all ports lose any  
active sessions and initially go off-line after a reset. The ports then return to  
the configuration stored in the CDB. Because the RESET button is small (to  
avoid accidental resets), it is recommended that you use a straightened paper  
clip to push the RESET button.  
3.2.2.1.2  
RS-232 Serial Port  
The RS-232 serial port provides terminal access for any VT100 (or similar) ter-  
minal or terminal emulation package to the SCP. The serial port has a stan-  
dard DB-9 female connector as shown in Figure 3.5.  
4
2
1
3
5
6
9
8
7
Figure 3.5 - RS-232 Serial Port Pinouts  
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Switch Hardware  
Table 1.1 describes the RS-232 serial port pinouts that are illustrated in  
Figure 3.5.  
Table 3.1 - RS-232 Serial Port Pinouts  
Signal  
Mnemonic  
Pin Number  
Signal Name  
1
2
3
4
5
6
7
8
9
DCD  
RXD  
TXD  
DTR  
GND  
DSR  
RTS  
Data Carrier Detect  
Receive Data  
Transmit Data  
Data Terminal Ready  
Signal Ground  
Data Set Ready  
Request to Send  
Clear to Send  
CTS  
Not Used  
3.2.2.1.3  
Ethernet 10BaseT Port  
The Ethernet 10BaseT port on the front panel of the SCP has a standard RJ45  
connector. There is a transmit LED to the left of this port and a receive LED to  
the right of this port. Tables 1.2 and 1.3 describe the states of the LEDs and  
their meanings.  
Table 3.2 - Ethernet 10BaseT Transmit LED Description  
LED Color  
Meaning  
red  
There is a collision on the port.  
The port is transmitting normally.  
green  
Table 3.3 - Ethernet 10BaseT Receive LED Description  
LED Color  
Meaning  
red  
The port is failing link integrity.  
The port is receiving normally.  
green  
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Switch Hardware  
3.2.2.1.4  
CTL Port  
A control port inside the SCP, referred to in the switch software as the CTL  
port, is a logical (not physical) location where cells that are directed to the  
SCP itself are sent. The CTL port has two roles, serving as both a host and a  
switch board controller. All signalling from the switch host and every  
attached host must interact with the switch board controller.  
3.2.2.1.5  
NEXT Pushbutton  
The NEXT pushbutton lets you scroll through the menu that is shown on the  
display LED after the power is turned on or after the SCP is reset/rebooted.  
3.2.2.1.6  
SELECT Pushbutton  
The SELECT pushbutton lets you choose an option from the menu that is  
shown on the display LED after the power is turned on or after the SCP is  
reset/rebooted.  
3.2.2.1.7  
Display LED  
During the boot process and the initial power-on diagnostics, the display LED  
shows messages about what is happening to the SCP. It is also used to show  
the menu choices for the NEXT and SELECT pushbuttons after the power is  
turned on or after the SCP is reset/rebooted. The choices shown on the dis-  
play LED are as follows:  
Flash ?  
When chosen, the SCP will attempt to boot from  
the FLASH file.  
Ethernet ?  
Monitor ?  
When chosen, the SCP boots from the network.  
When chosen, the user can connect a terminal to  
the serial port and run hardware self-diagnostics.  
Auto ?  
When chosen, the SCP will attempt to boot from  
the FLASH. If this is unsuccessful, then the SCP  
will perform an Ethernet boot.  
To access the modes listed above, press the NEXT pushbutton while the  
switch is booting until the mode you want to access is shown on the display  
LED. Then, press the SELECT pushbutton.  
After the boot process and self-diagnostics are complete, the name of the SCP  
is shown in the display LED during normal operations, if an SCP name has  
been assigned. If an SCP name has not been assigned, it will display ATM  
SWITCH. For information on creating or modifying the SCP name, please refer  
to the section on configuring the SCP name in Appendix B, AMI Configura-  
tion Commands, in the Cabletron ATM Switch Configuration Manual.  
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Switch Hardware  
3.2.2.1.8  
Power LED  
The power LED that is located to the right of the display LED on the front  
panel of the SCP reflects the current state of power to the SCP. Table 1.4 lists  
the states of the power LED and their meanings.  
Table 3.4 - Power LED Description  
LED Color  
Meaning  
red  
The SCP has power, but has failed. (The individual  
SCP, not the entire switch, has not passed  
self-diagnostics.)  
green  
off  
The SCP is powered up and is in good status.  
There is no power to the SCP.  
A power switch is located on the upper right-hand corner of the SFCS-  
200WG. When the power is turned on, the power LED, located to the right of  
the display LED, illuminates green and the initial power-on diagnostics are  
run. When the power is turned off, the power LED is extinguished.  
3.2.3 Network Modules  
The network modules in a Cabletron switch board act as the physical input/  
output ports to the switch board. A network module may have one, two, four,  
or six physical ports, depending on its configuration.  
3.2.3.1  
Port Numbering  
The individual ports on a network module are numbered according to the  
Board-Network Module-Port (BNP) notation.  
Board  
Refers to the number of the switch board that  
contains the port being numbered. “Board” is  
always 1 in an SFCS-200BX, or an SFCS-200WG,  
since these switches each contain only one  
switch board. “Board” can be 1, 2, 3, or 4 in an  
SFCS-1000, depending on the number of the  
physical switch board that contains the port  
being numbered.  
Network Module  
Port  
Refers to the slot (A, B, C, or D) in the switch  
board that contains the port being numbered.  
Refers to the physical port (1 - 6) being num-  
bered on the individual network module.  
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Switch Hardware  
For example, according to this notation, the fourth port on a network module  
in slot B of switch board #2 is port 2B4.  
Figure 3.6 illustrates how the ports of various network modules, located in  
switch board #4 of an SFCS-1000, for example, would be numbered.  
PORT  
4D2  
PORT  
4D4  
PORT  
4D6  
PORT PORT PORT PORT  
PORT  
4D1  
PORT  
4D3  
PORT  
4D5  
4C1  
4C2  
4C3  
4C4  
RX1 RX2  
RX3 RX4  
T1  
R1 T2  
R2 T3  
R3 T4  
R4 T5  
R5 T6  
R6  
C
D
B
TX1 TX2  
RX1  
TX3 TX4  
RX1  
RX2  
TX2  
A
TX1  
TX1  
PORT  
4B1  
PORT  
4B2  
PORT  
4A1  
Figure 3.6 - Network Module Port Numbering  
NOTE: For information about the technical and oper-  
ating specifications for all of the Cabletron  
ATM network modules, see Appendix C,  
Hardware Specifications, in this manual.  
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Switch Hardware  
3.2.4 Power Supply Modules  
The SFCS-200BX and the SFCS-1000 each come with two removable power  
supply modules. In the event of a single power supply failure, the power sup-  
ply indicator LED(s) on the front panel of the supplies will indicate the failed  
supply. The failed power supply can be removed and replaced while the other  
supply continues to provide power to the enclosure. In this manner, a single  
power supply failure will not cause the switch to stop functioning.  
WARNING!  
The SFCS-200WG comes with internal, non-  
removable power supplies. Attempting to  
remove these power supplies could result in  
serious injury or may cause permanent dam-  
age to the unit.  
3.2.4.1  
SFCS-200BX AC Power Supply  
The SFCS-200BX has two power supply LEDs, one for each removable, hot-  
swappable power supply. Each LED is located to the left of the power switch  
on the front panel for that supply. On the AC power supply for the  
SFCS-200BX, the LED is green under normal circumstances, indicating that  
the 5-volt supply coming from that particular power supply is functioning  
properly.  
CAUTION  
If the power supply LED is red, the faulty sup-  
ply should be turned off as soon as possible,  
using the single power switch which controls  
power to that supply. The problem should  
then be diagnosed and repaired. Please refer  
to Chapter 3, Hardware Maintenance Proce-  
dures, for details about how to hot-swap a  
power supply in the SFCS-200BX.  
NOTE: A replacement AC power supply will not  
function in a DC-equipped SFCS-200BX, and  
vice-versa. However, no damage will be done  
if this occurs.  
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Switch Hardware  
3.2.4.2  
SFCS-1000 AC Power Supply (Model A)  
The model A AC power supply for an SFCS-1000 is shown in Figure 3.7.  
AC  
48V DC  
5VDC OK  
SHUTDOWN  
CAUTION: This unit has more than one  
power cord. To reduce the risk of  
electric shock, disconnect two power  
supply cords b servicing.  
ATTENTION: Cet appareil comporte plus  
d’un cordon d’alimentation. Afin  
de prevenir les chocs electriques,  
debrancherles 2 cordons d’alimentation  
avant de faire le depannage.  
Retention  
screws  
Ejection/insertion  
handle  
CAUTION: Double pole/neutral fusing  
F12A/250V  
Figure 3.7 - Model A SFCS-1000 AC Power Supply  
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Switch Hardware  
3.2.4.2.1  
Power Supply LEDs  
There are four LEDs on the front panel of the model A SFCS-1000 AC power  
supply which indicate the status of the power supply. The LEDs and their  
functions are described in the following table:  
Table 3.5 - SFCS-1000 Power Supply LED Descriptions  
3.2.4.2.2  
Shutdown Conditions  
To avoid damaging itself or the switch, the model B SFCS-1000 AC power  
supply shuts itself down under the following condition:  
Overload  
The power supply is overloaded or the AC input  
is out of specification, and the supply voluntarily  
shuts down to avoid damage to the system.  
NOTE: The SFCS-1000 CEC can not shut down the  
model A power supply. Only the power sup-  
ply can shut itself down in an overload state.  
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Switch Hardware  
If a model A power supply goes into shutdown, it will remain shut down  
until the power switch is turned off and turned on again (power cycle). The  
power switch must remain off long enough for the SHUTDOWN LED to  
extinguish (this allows the capacitors to discharge).  
WARNING!  
A replacement AC power supply should  
never be placed in an SFCS-1000 that already  
contains a DC power supply, and vice-versa. If  
these instructions are not heeded, there is a  
risk of electrical shock, danger to personal  
health, and serious damage to the equipment.  
If the power supply needs to be replaced, please refer to Chapter 3, Hardware  
Maintenance Procedures, for hot-swap information.  
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Switch Hardware  
3.2.4.3  
SFCS-1000 AC Power Supply (Model B)  
The model B AC power supply for an SFCS-1000 is shown in Figure 3.8.  
ON/OFF Switch  
Handle  
100 - 120V ~  
200 - 240V ~  
50 - 60Hz  
T15A 250V  
T15A 250V  
PWR  
OK  
Captive  
fasteners  
FAULT  
TEMP  
I LIM  
CAUTION: This unit has more than one power cord. To reduce the  
risk  
of electric shock, disconnect two power supply cords b servicing. ATTEN-  
TION: Cet appareil comporte plus d’un cordon d’alimentation.  
prévenir les chocs électriques, débrancher les 2 cordons  
tion avant de faire le dépannage.  
Afin de  
d’alimenta-  
Figure 3.8 - Model B SFCS-1000 AC Power Supply  
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3.2.4.3.1  
Power Supply LEDs  
There are four LEDs on the front panel of the model B SFCS-1000 AC power  
supply which indicate the status of the power supply. The LEDs and their  
functions are described in the following table:  
Table 3.6 - SFCS-1000 Power Supply LED Descriptions  
3.2.4.3.2  
Shutdown Conditions  
To avoid damaging itself or the switch, the model B SFCS-1000 AC power  
supply shuts itself down under the following error conditions:  
Input undervoltage  
Output undervoltage  
The AC line voltage is below 87 ±5VAC RMS.  
Output 1 is 42 ±2 VDC or Output 2 is below 4.5  
±0.25 VDC. Shutdown from undervoltage is  
defeated during power-up period (2 seconds  
maximum) to allow slow-start.  
Output overvoltage  
Overtemperature  
The voltage at Output 1 or Output 2 is above  
125% ±8% of the nominal voltage.  
Any power semiconductor has reached 90% of  
its maximum junction temperature.  
NOTE: The SFCS-1000 CEC can not shut down the  
model B power supply. Only the power sup-  
ply can shut down and restart itself.  
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Switch Hardware  
If a model B power supply goes into shutdown, it remains turned off until the  
fault condition is rectified. At that point, the power supply restarts itself,  
except in the case of an overvoltage condition.  
To recover from a shutdown caused by an overvoltage state, the AC line input  
must be turned off for at least one second.  
WARNING!  
A replacement AC power supply should  
never be placed in an SFCS-1000 that already  
contains a DC power supply, and vice-versa. If  
these instructions are not heeded, there is a  
risk of electrical shock, danger to personal  
health, and serious damage to the equipment.  
If the power supply needs to be replaced, please refer to Chapter 3, Hardware  
Maintenance Procedures, for hot-swap information.  
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Switch Hardware  
3.2.5 SFCS-1000 Fan Tray  
The SFCS-1000 comes with a removable fan tray. The speed of each fan is  
monitored by circuitry in the CEC, and is available via SNMP. In this manner,  
the failure of any fan can be detected immediately. The fan tray is hot-swap-  
pable, and the entire tray may be replaced in the event of a single or multiple  
fan failure. Please refer to Chapter 3, Hardware Maintenance Procedures, for  
information about how to hot-swap a fan tray.  
NOTE: The fans in the SFCS-200WG, and the SFCS-  
200BX are not removable.  
3.2.6 SFCS-1000 Temperature Sensing  
In the SFCS-1000, a built-in thermal temperature sensor resides on each  
switch board and reads out the board’s local temperature. By default, the  
switch control software will trigger an alarm at 65˚C and will reset the alarm  
when the temperature drops back down to 60˚C. However, the user can con-  
figure these alarm and reset thresholds in the software on an individual board  
via AMI. Please refer to Appendix C, AMI Operation Commands, in the  
Cabletron ATM Switch Configuration Manual for more information about  
configuring these thresholds. If the temperature of an individual switch board  
were ever to reach 75˚C, the switch board would shut itself down immedi-  
ately.  
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Switch Hardware  
3.2.7 SFCS-1000 Common Equipment Card (CEC)  
The CEC provided with the SFCS-1000 performs several functions. Because  
each SCP contains an Ethernet port, a major function of the CEC is to provide  
a single, unified Ethernet port connection for all of the SCPs. The CEC is also  
responsible for monitoring the environmental conditions of the switch and  
reporting this information to the SCPs. The CEC reports conditions such as  
malfunctioning fans, overheated power supplies, and an overheated enclo-  
sure.  
3.2.7.1  
CEC Front Panel  
The front panel of the SFCS-1000 CEC includes the following features: alarm  
relay contacts, CEC status LEDs, and an Ethernet port with four LEDS. These  
features are illustrated in Figure 3.9. Refer to the following subsections for  
detailed descriptions of these features.  
AL1  
AL2  
RX  
LI  
COL  
POL  
ETH  
AL1  
AL2  
Figure 3.9 - CEC Front Panel Status Indicators  
3.2.7.2  
Alarm Relay Contacts  
Pins 1 and 2 are the contacts for AL1, and pins 3 and 4 are the contacts for  
AL2. Although the pins are not actually labeled on an SFCS-1000 CEC, they  
will be referred to as shown in Figure 3.10.  
AL1  
AL2  
Pin 1 Pin 2 Pin 3 Pin 4  
Figure 3.10 - Alarm Relay Contacts for AL1 and AL2  
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Switch Hardware  
The alarm relay contacts are normally closed when there is no power to the  
switch. The user can attach alarm circuits to these contacts to trigger an exter-  
nal alarm in the case of an alarm condition on the switch.  
The user can define AL1 and AL2 as major and minor alarm indicators and  
can display which condition is alarming through the use of AMI. For more  
information, please refer to the alarm configuration section in Appendix B,  
AMI Configuration Commands, in the Cabletron ATM Switch Configuration  
Manual.  
Table 3.7 - Alarm Relay Contact Status During Major and Minor Alarms  
Condition  
Pins 1 and 2  
Pins 3 and 4  
Switch Powered OFF  
During Boot  
Jumped  
Indeterminate  
Open  
Jumped  
Indeterminate  
Open  
Normal Operation  
Minor Alarm Only  
Major Alarm Only  
Major and Minor Alarms  
Jumped  
Open  
Open  
Jumped  
Jumped  
Jumped  
NOTE: In Table 1.7, “Jumped” indicates that the cir-  
cuit between the indicated pins has been  
closed (i.e., an external alarm would be trig-  
gered if connected to the pins).  
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Switch Hardware  
3.2.7.3  
CEC Status LEDs  
This subsection discusses the meaning of the status LEDs on the CEC of the  
SFCS-1000 switch. The LEDs have been designed to provide information per-  
taining to the state of the switch at a glance.  
PS2  
SW4  
AL1  
AL2  
SW2  
SW1  
PS1  
SW3  
Figure 3.11 - CEC Status LEDs  
There are eight status LEDs located on the front panel of the CEC in a 2 row x  
4 column arrangement. The only LEDs that are actually labeled are AL1 and  
AL2, but for the purposes of discussion, the other LEDs will be referred to as  
labeled in Figure 3.11. The LEDs have been broken down into the following  
function groups: alarm LEDs, power supply LEDs, and switch board LEDs.  
3.2.7.3.1  
Alarm LEDs  
The LEDs labeled AL1 and AL2 are alarm relay LEDs. During boot-up, AL1  
and AL2 are in an indeterminate state. During normal operation, they will be  
off. During a state of alarm, they will illuminate red. By default, AL1 is the  
major alarm indicator for SPANS failure and for link failure. By default, AL2  
is the minor alarm indicator for fan failure, an overtemperature condition, or  
a power supply failure. The user may display and/or change these configura-  
tions through the use of AMI. For more information, please refer to the alarm  
configuration section in Appendix B, AMI Configuration Commands, in the  
Cabletron ATM Switch Configuration Manual.  
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Switch Hardware  
3.2.7.3.2  
Power Supply LEDs  
There are two power supply LEDs on the front panel of the CEC, one for each  
power supply. The LEDs for the two power supplies should be illuminated  
yellow, indicating that the CEC is on and that the power supply correspond-  
ing to that LED is functioning correctly. The LED for a failed power supply  
will be extinguished. On an SFCS-1000, power supply “1” is in the slot labeled  
PS1 on the enclosure, while power supply “2” is in the slot labeled PS2 on the  
enclosure.  
3.2.7.3.3  
Switch Board LEDs  
There are four switch board LEDs on the front panel of the CEC, one for each  
possible switch board. These LEDs should be blinking, indicating that the  
switch has booted and is operating correctly. If the SCP is removed, the LEDs  
may remain in a steady-on or steady-off state. Even if the SCP has booted cor-  
rectly, the LEDs will not illuminate if the SCP is running a software version  
prior to 3.2.0. If the switch board in the slot corresponding to the LED is not  
intended for an SFCS-1000 (e.g., it is an SFCS-200BX board), or if the entire  
switch board corresponding to that LED is removed, then that LED will be  
extinguished. On an SFCS-1000, the SW1 LED corresponds to switch board  
“1,” which is in the slot labeled 1 on the enclosure, and so on.  
3.2.7.4  
Ethernet Port  
The Ethernet port located on the CEC of the SFCS-1000 has a standard RJ-45  
female connector and is designed to provide a single, unified Ethernet con-  
nection. It is connected via the backplane and simple Ethernet repeater to  
each SCP’s Ethernet port, thus eliminating the need to attach each SCP indi-  
vidually. This Ethernet port has four LEDs which indicate its current status as  
shown in Figure 3.12. These LEDs are described in Tables 1.8 through 1.11.  
RX  
LI  
COL  
POL  
ETH  
Figure 3.12 - CEC Ethernet Port and LEDs  
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Switch Hardware  
Table 3.8 - CEC Receive (RX) LED Description  
LED Color  
Meaning  
green  
off  
The Ethernet port is receiving traffic normally.  
The Ethernet port is NOT receiving traffic.  
Table 3.9 - CEC Link Integrity (LI) LED Description  
LED Color  
Meaning  
green  
The status of the twisted pair cable connected to  
the CEC Ethernet port is OK.  
off  
The Ethernet port is NOT receiving link integrity  
pulses. Check the integrity of the connection.  
Table 3.10 - CEC Collision (COL) LED Description  
LED Color  
Meaning  
red  
An Ethernet collision has been detected on the  
CEC Ethernet port.  
off  
No Ethernet collisions have been detected.  
Table 3.11 - CEC Polarity (POL) LED Description  
LED Color  
Meaning  
amber  
A reverse polarity condition has been detected on  
the twisted pair cable connected to the CEC Ether-  
net port. The polarity is automatically corrected,  
but the amber light will remain illuminated until a  
corrected twisted pair cable is inserted into the  
Ethernet port.  
off  
The polarity of the twisted pair cable connected to  
the CEC Ethernet port is OK.  
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Switch Hardware  
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CHAPTER 4 Switch Setup  
This chapter describes how to handle and set up a Cabletron ATM switch  
prior to its operation.  
4.1 Introduction  
Before installing a Cabletron ATM switch, there are several important factors  
that must be taken into consideration, depending on the type of installation  
site. The following sections discuss in detail how to install a Cabletron ATM  
switch and any prerequisites to the installation.  
NOTE: It is important to read through the ENTIRE  
installation procedure before attempting to  
turn on the power to the unit.  
4.2 Unpacking  
Upon receipt of, and before opening your Cabletron ATM switch, inspect the  
package for any damage that may have occurred during shipping. If the pack-  
age shows any signs of external damage or rough handling, notify your car-  
rier’s representative.  
When unpacking your Cabletron ATM switch, be sure to keep all original  
packing materials. They may be needed for storing, transporting, or returning  
the product.  
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Switch Setup  
4.2.1 Inventorying the Unit  
A complete inventory of the Cabletron ATM switch package should be per-  
formed before any power is supplied to the unit.  
The Cabletron ATM switch package should contain the following:  
• Cabletron ATM switch  
• Cabletron ATM Switch User’s Manual (this manual)  
• Cabletron ATM Switch Configuration Manual  
1
• Power cords  
1
• International power cords (optional)  
• Modem serial cable  
• Anti-static grounding strap  
• Product registration card  
2
• Rack-mount kit (standard with an SFCS-200BX)  
The rack-mount kit should contain the following:  
• 1 left rack-mount bracket  
• 1 right rack-mount bracket  
• 1 cable strain relief rail  
• 6 Phillips-head screws  
If any of the items listed above are missing or damaged, please contact  
Cabletron Systems’ Technical Support immediately.  
1. The SFCS-200WG comes with one power cord (or international power cord). The SFCS-  
200BX and the SFCS-1000 each come with two power cords (or international power  
cords).  
2. The rack-mount kit is not applicable to the SFCS-1000. The rackmount kit is optional for  
the SFCS-200WG and may be purchased separately.  
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Switch Setup  
4.3 Electrical Considerations  
The following items should be considered when setting up the switch:  
CAUTION  
Consideration should be given to the connec-  
tion of the equipment to the supply circuit and  
the effect that the overloading of circuits could  
have on overcurrent protection and supply  
wiring. Appropriate consideration of equip-  
ment nameplate ratings should be used when  
addressing this concern.  
CAUTION  
Reliable grounding of rack-mounted equip-  
ment should be maintained. Particular  
attention should be given to supply connec-  
tions other than direct connections to the  
branch (i.e., use of power strips).  
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Switch Setup  
4.4  
Rack-Mounting an SFCS-200BX  
The SFCS-200BX is designed to be installed either as a stand-alone unit placed  
on the desktop, or as a rack-mounted unit using the included rack-mount kit  
(refer to section 4.2.1). The following items should be addressed when rack-  
mounting this switch:  
WARNING!  
When rack-mounting equipment, make sure  
that a hazardous condition is not created due  
to uneven weight distribution.  
CAUTION  
To prevent damage to your equipment,  
Cabletron Systems recommends that the max-  
imum operating temperature not exceed 40˚C.  
Consideration must be made if the switch is to  
be installed in a closed or multi-unit rack  
assembly, because the ambient temperature of  
the rack environment may be greater than the  
room ambient temperature.  
CAUTION  
Take care not to block the air vents of the  
switch, as this would compromise the amount  
of air flow required for proper cooling.  
4.4.1 Required Tools  
A set of rack-mount brackets, a cable relief strain rail, and 6 Phillips-head  
screws are supplied with each SFCS-200BX for rack-mounting the unit. You  
will need to supply a Phillips screwdriver.  
WARNING!  
To prevent user injury and possible damage to  
equipment, Cabletron Systems recommends  
that at least two people be present when rack-  
mounting the SFCS-200BX.  
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Switch Setup  
4.4.2 Installing the Rack-mount Brackets  
To install the rack-mount brackets and cable relief strain rail, use the follow-  
ing procedure:  
1. Carefully place the SFCS-200BX unit upside down on a clean, flat,  
sturdy work surface with the front of the unit still facing front.  
2. Using a Phillips screwdriver, remove the four feet from the bottom  
of the unit.  
3. Each rack-mount bracket has three screws that secure the bracket  
to the bottom of the unit. The screw closest to the front of the unit  
is used to secure the bracket to the bottom of the unit as well as  
secure the cable relief strain rail to the front of the unit. Tighten the  
three screws to secure the left bracket, marked HWST0027-0001,  
and the left side of the cable relief strain rail to the left side of the  
unit. Tighten the three screws to secure the right bracket, marked  
HWST0027-0002, and the right side of the cable relief strain rail to  
the right side of the unit.  
CAUTION  
When attaching the rack-mount brackets, the  
use of screws other than those provided could  
result in damage to the unit.  
4. Once the brackets and the cable relief strain rail are secure, choose  
a rack position for the SFCS-200BX. The SFCS-200BX should be  
placed right side up in the rack with the front of the unit facing  
forward.  
CAUTION  
When it is mounted in the equipment rack, do  
not use the SFCS-200BX chassis to support  
other equipment. This could overload the  
mounting brackets and cause damage to the  
unit.  
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Switch Setup  
NOTE: The SFCS-200BX is an operational ATM  
switch at this point if used with other  
Cabletron switches or with ATM interface  
cards. However, if other vendor equipment is  
connected, you may have to complete an ini-  
tial user configuration.  
NOTE: If you wish to have remote access to the  
switch, you must first install a serial cable  
and configure a modem. Please refer to sub-  
sections 4.7 and 4.8 for more information.  
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Switch Setup  
4.5  
Rack-Mounting an SFCS-200WG  
The SFCS-200WG is designed to be installed either as a stand-alone unit  
placed on the desktop, or as a rack-mounted unit using the optional rack-  
mount kit (refer to section 4.2.1), which may be purchased separately. The fol-  
lowing items should be addressed when rack-mounting this switch:  
WARNING!  
When rack-mounting equipment, make sure  
that a hazardous condition is not created due  
to uneven weight distribution.  
CAUTION  
Cabletron Systems recommends that the max-  
imum operating temperature not exceed 40˚C.  
Consideration must be made if the switch is to  
be installed in a closed or multi-unit rack  
assembly, because the ambient temperature of  
the rack environment may be greater than the  
room ambient temperature.  
CAUTION  
Take care not to block the air vents of the  
switch, as this would compromise the amount  
of air flow required for proper cooling.  
4.5.1 Required Tools  
A set of rack-mount brackets, a cable relief strain rail, and 6 Phillips-head  
screws can be purchased separately for rack-mounting the SFCS-200WG. You  
will also need to supply a Phillips screwdriver.  
WARNING!  
To prevent user injury and possible damage to  
equipment, Cabletron Systems recommends  
that at least two people be present when rack-  
mounting the SFCS-200WG.  
4-7  
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Switch Setup  
4.5.2 Installing the Rack-mount Brackets  
To install the rack-mount brackets and cable relief strain rail, use the follow-  
ing procedure:  
1. Carefully place the SFCS-200WG unit upside down on a clean,  
flat, sturdy work surface with the front of the unit still facing  
front.  
2. Using a Phillips screwdriver, remove the four feet from the bottom  
of the unit.  
3. Each rack-mount bracket has three screws that secure the bracket  
to the bottom of the unit. The screw closest to the front of the unit  
is used to secure the bracket to the bottom of the unit as well as  
secure the cable relief strain rail to the front of the unit. Tighten the  
three screws to secure the left bracket, marked HWST0027-0001,  
and the left side of the cable relief strain rail to the left side of the  
unit. Tighten the three screws to secure the right bracket, marked  
HWST0027-0002, and the right side of the cable relief strain rail to  
the right side of the unit.  
CAUTION  
When attaching the rack-mount brackets, the  
use of screws other than those provided could  
result in damage to the unit.  
4. Once the brackets and the cable relief strain rail are secure, choose  
a rack position for the SFCS-200WG. The SFCS-200WG should be  
placed right side up in the rack with the front of the unit facing  
forward.  
CAUTION  
When it is mounted in the equipment rack, do  
not use the SFCS-200WG chassis to support  
other equipment. This could overload the  
mounting brackets and cause damage to the  
unit.  
4-8  
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Switch Setup  
NOTE: The SFCS-200WG is an operational ATM  
switch at this point if used with other  
Cabletron switches or with ATM interface  
cards. However, if other vendor equipment is  
connected, you may have to complete an ini-  
tial user configuration.  
NOTE: If you wish to have remote access to the  
switch, you must first install a serial cable  
and configure a modem. Please refer to sub-  
sections 4.7 and 4.8 for more information.  
4-9  
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Switch Setup  
4.6  
Rack-Mounting an SFCS-1000  
The SFCS-1000 switch is designed to be rack-mounted. The following items  
should be addressed when rack-mounting this switch:  
WARNING!  
When rack-mounting equipment, make sure  
that a hazardous condition is not created due  
to uneven weight distribution.  
CAUTION  
Cabletron Systems recommends that the max-  
imum operating temperature not exceed 40˚C.  
Consideration must be made if the switch is to  
be installed in a closed or multi-unit rack  
assembly, because the ambient temperature of  
the rack environment may be greater than the  
room ambient temperature.  
CAUTION  
CAUTION  
Take care not to block the air vents of the  
switch, as this would compromise the amount  
of air flow required for proper cooling.  
Ensure that any unpopulated switch board  
slots are covered with a blank panel before  
turning on your SFCS-1000. Operating the  
switch with any of these slots left open can  
cause a significant temperature rise in a very  
short time.  
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Switch Setup  
4.6.1 Installing the SFCS-1000  
To install the SFCS-1000 in the equipment rack, use the following procedure:  
1. Choose a rack position for the SFCS-1000.  
WARNING!  
Because of the unit’s weight, two people  
should lift the unit to place it in the equipment  
rack.  
2. Place the SFCS-1000 in the rack with the front of the unit facing  
forward.  
CAUTION  
When it is mounted in the equipment rack, do  
not use the SFCS-1000 chassis to support other  
equipment. This could overload the mounting  
brackets and cause damage to the unit.  
3. After mounting the enclosure, verify that the enclosure is screwed  
tightly to the rack to ensure that proper grounding is maintained.  
Additionally, the rack should be connected to an earth ground.  
NOTE: The SFCS-1000 is an operational ATM switch  
at this point if used with other Cabletron  
switches or with ATM interface cards. How-  
ever, if other vendor equipment is connected,  
you may have to complete an initial user con-  
figuration.  
NOTE: If you wish to have remote access to the  
switch, you must first install a serial cable  
and configure a modem. Please refer to sub-  
sections 4.7 and 4.8 for more information.  
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Switch Setup  
4.7 Installing the Serial Cable  
Connect the serial cable (supplied with the switch) from the switch’s serial  
port to any tty-type device (such as a terminal, or the serial port of a worksta-  
tion or PC running a terminal emulation program).  
NOTE: The switch’s tty port comes configured at  
9600 baud, 8 bits, no parity and 1 stop bit.  
When you turn on the switch, you should see the switch boot on the tty  
device connected to the switch’s serial port.  
NOTE: The switch is ready for user configuration asa  
soon as it is connected to a tty-type device. To  
access the switch, enter a sx at the prompt of  
the tty device.  
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Switch Setup  
4.8 Modem Configuration  
All Cabletron ATM switches support modem access. This may be useful if a  
switch is installed in a remote location where direct, physical access to the  
switch is not possible or practical. Keep the following in mind when using a  
modem to access a Cabletron ATM switch:  
To allow the Cabletron ATM switch to communicate with the modem,  
a Null-Modem Adapter must be installed on the factory-supplied  
serial cable.  
• The Cabletron ATM switch will not disconnect an ATM Management  
Interface (AMI) session on loss-of-carrier; therefore, you must ensure  
that you have completely exited from an open AMI session before  
disconnecting the modem session.  
To allow a modem to work with a Cabletron ATM switch, you must complete  
two sets of configurations. First, the speed of the serial port on the Cabletron  
ATM switch must be set to match that of the attached modem and, second,  
the modem parameters must be configured correctly.  
4.8.1 Modem Parameters  
You should use a Hayes-compatible modem, as the configuration parameters  
supplied here are applicable to this type of modem. The following parameters  
should be applied to your Hayes-compatible modem to allow it to function  
properly with the switch’s serial port. You may attach a tty device to the  
modem to set these parameters.  
Setting  
ATE0  
Comment  
Turn off Echoing  
ATQ1  
No Return Codes  
AT&C0  
AT&D0  
AT&W  
Force Carrier Detect (CD) High  
Ignore Data Terminal Ready (DTR)  
Save Modem Configuration  
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Switch Setup  
4.9 Configuring IP Addresses  
The recommended configuration for a Cabletron ATM switch is to assign an  
IP address to its network interfaces. This allows you to communicate with the  
switch from any workstation connected to your ATM LAN. IP addresses must  
be assigned to the network interfaces in order to perform any SNMP func-  
tions. Additionally, if you intend to connect the switch to an Ethernet, you  
should assign an IP address to the switch’s Ethernet network interface.  
To configure the IP addresses, log in to an AMI session on the switch. To mod-  
ify the IP address of the SCP’s IP interfaces, enter the following parameters:  
NOTE: On an SFCS-1000, the IP address must be con-  
figured individually for each SCP.  
c ong ura tion ip a d d re ss <inte rfa c e > <a d d re ss>  
The <inte rfa c e > variable indicates the name of the IP interface to be man-  
aged. The <a d d re ss> variable indicates the IP address for this interface.  
To modify the IP subnet mask, enter the following parameters:  
c ong ura tion ip m a sk <inte rfa c e > <m a sk>  
The <inte rfa c e > variable indicates the name of the IP interface. The <ma sk>  
variable indicates the subnet mask for this IP interface.  
The IP address that you assign for the switch’s ATM interface must be an  
address within a subnet that is assigned to your ATM LAN. In general, the  
entire ATM LAN should be configured as a single IP subnet. Consequently,  
the ATM interfaces of all Cabletron switches in the ATM LAN should be in the  
same IP subnet. Consult your systems administrator for help if you are  
unsure of how to do so.  
4-14  
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Switch Setup  
4.10 AMI Security  
The administrative password on your Cabletron ATM switch may be changed  
to provide password-protected access to AMI. Cabletron Systems recom-  
mends that you do this to prevent unauthorized users from accessing your  
Cabletron ATM switch. This option is available in AMI at the o p e ra tio n level.  
Be sure that you want to change the password because upon entering the  
command string o p e ra tio n p a sswo rd , the user is prompted to enter a new  
password immediately.  
For complete information about how to assign or change the password,  
please refer to the section entitled “Setting or Changing the Password” in  
Appendix C, AMI Operation Commands, in the Cabletron ATM Switch Con-  
figuration Manual.  
4.11 Subsequent Operation  
After its initial configuration is complete, a Cabletron switch DOES NOT  
require a terminal for normal operation.  
NOTE: Cabletron Systems strongly recommends that  
you disconnect the serial cable once you have  
configured the switch and then access the  
switch over the ATM network or over Ether-  
net.  
All further communication with your Cabletron switch can be performed  
over the ATM network or over Ethernet. For example, you can access AMI  
using telnet.  
WARNING!  
Once installed, before any service is per-  
formed on the unit, the power should be  
turned off and the power cord disconnected,  
except when following the hot-swap instruc-  
tions in this manual.  
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Switch Setup  
4.12 Verifying the Installation  
To verify that your switch is up and running, log in to AMI and open a session  
on the switch. Enter the following parameters at the localhost::>prompt  
to show the configuration of all of the ports on an individual switch fabric:  
c ong ura tion p ort show  
4.13 Product Registration Information  
After you have successfully completed the installation process, please fill out  
the enclosed product registration card for your Cabletron ATM switch, and  
return it to Cabletron Systems immediately.  
4-16  
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CHAPTER 5 Hardware Maintenance  
Procedures  
This chapter discusses various hardware maintenance procedures for the  
Cabletron ATM switches. Items discussed include the following:  
• Network Module Replacement  
• Power Supply Replacement  
• Fan Tray Replacement  
• Switch Control Processor Replacement  
• Switch Board Replacement  
5.1 Network Module Replacement  
5.1.1 Overview  
The network modules in all Cabletron ATM switches are hot-swappable,  
meaning that they can be removed and replaced with the unit under power.  
Network modules should only be hot-swapped for purposes of replacing a  
failed unit. Therefore, they should be replaced with a network module of the  
same type, the same Series, and with the same number of ports. A network  
module’s type is the class to which the network module belongs (e.g., OC-3,  
E3, TAXI, etc.).  
If a network module is removed and replaced by a network module of  
another type or by a network module with fewer ports, all configuration  
information for that network module’s slot will be deleted, and the new net-  
work module will be configured with the defaults for its type. For example, if  
a 4-port Series A OC-3c is replaced by a 4-port Series C OC-3c, the Series C  
network module will use the same configuration of the Series A network  
module. Any additional configurable variables will contain OC-3c defaults. If  
a 4-port OC-3c is replaced by a 4-port DS3, all configuration information for  
that slot will be deleted and the DS3 will be initialized with DS3 defaults. If a  
6-port DS3 is replaced by a 2-port DS3, all configuration information for the  
slot will be deleted, and the new DS3 initialized with DS3 defaults. If a net-  
work module is placed into a previously vacant slot, it will be initialized into  
the default state appropriate to that type of network module.  
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Hardware Maintenance Procedures  
5.1.2 Multicast Mode  
When hot-inserting or hot-swapping a network module, the mode in which  
the switch is running must also be considered. A Cabletron 200 Series switch  
can operate in one of two multicast modes: extended mode or non-extended  
mode.  
• Extended mode - The added features of Series C network modules  
give Cabletron switches greater flexibility when choosing VCIs for  
multicast connections. This flexibility provides more successful mul-  
ticast (point-to-multipoint, or PMP) connection setups. If a switch  
fabric contains no network modules or if it contains only Series C net-  
work modules, the switch will operate in extended mode.  
• Non-extended mode - If a switch fabric contains at least one Series A  
or at least one Series B network module, that switch fabric will oper-  
ate in non-extended (or mixed) mode.  
NOTE: The mode in which the switch operates is  
determined each time the SCP restarts. If a  
switch is running in extended mode and a  
Series A or B network module is hot-inserted,  
the switch will not automatically revert to  
non-extended mode. The switch must be  
restarted immediately so that it operates in  
non-extended mode. If it is not restarted, all  
multicast connections fail on the Series A or B  
network module.  
You can display the multicast mode in which your switch is operating by  
using the c o ng ura tio n b o a rd show command in the ATM Management  
Interface (AMI).  
NOTE: If a switch is running in non-extended mode,  
originating path 0 should always exist on  
port 1 of each Series C network module for  
multicast connection setups to succeed.  
Multicast connection information for all of  
the ports of Series C network modules is  
stored in the space allocated for port 1 and  
path 0 on each Series C network module.  
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Hardware Maintenance Procedures  
5.1.3 Hot-swapping Network Modules  
When removing or replacing network modules, use the following procedure:  
WARNING!  
To reduce risk to the user and to prevent dam-  
age to equipment, it is recommended that you  
use the included grounding strap when han-  
dling this or any other component.  
NOTE: All AMI sessions should be terminated before  
hot-swapping network modules of different  
types.  
1. Label and remove all network connections from the ports on the  
network module.  
2. Loosen the two captive fasteners on either edge of the network  
module using a straight screwdriver.  
3. Pull firmly but carefully on the captive fasteners, removing the  
network module from the switch as shown in Figure 3.1.  
4. Insert the replacement module by sliding it into the card guides.  
Push firmly to seat the network module so that the faceplate is  
flush with the switch. Re-tighten the captive fasteners.  
CAUTION  
For continued safety, tighten the captive fas-  
teners with a straight screwdriver.  
5. Restore the network connections from Step 1.  
RX1  
RX2  
RX3  
RX4  
TX4  
TX1  
TX2  
TX3  
TX1  
2X1  
TX1  
TX1  
Loosen captive fasteners  
and pull STRAIGHT out.  
Figure 5.1 - Removal of Network Modules  
5-3  
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Hardware Maintenance Procedures  
5.2 Power Supply Module Replacement  
The power supplies in the SFCS-200BX and the SFCS-1000 are hot-swappable,  
meaning that they can be removed/replaced without having to shut down  
the switch.  
WARNING!  
DO NOT attempt to replace a power supply  
module without reading this section. Serious  
injury to the user or damage to the equipment  
may result if proper replacement procedures  
are not followed.  
5.2.1 SFCS-200BX Power Supply Module Replacement  
5.2.1.1  
Replacing an SFCS-200BX AC Power Supply  
The procedure for hot-swapping an SFCS-200BX AC power supply module is  
as follows:  
WARNING!  
To reduce risk to the user and to prevent dam-  
age to the equipment, it is recommended that  
you use the included grounding strap when  
handling this or any other component.  
NOTE: A replacement AC power supply will not  
function in a DC-equipped SFCS-200BX, and  
vice-versa. However, no damage will result if  
this occurs.  
1. Determine which power supply is defective by examining the  
power supplies themselves. A red LED or an extinguished LED  
indicates the failed supply. Power supply “1” is on the left-hand  
side of the unit, and power supply “2” is on the right-hand side  
(while facing the front of the unit).  
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Hardware Maintenance Procedures  
WARNING!  
Failure to perform Step 2 can result in serious  
injury to the user or damage to the equipment.  
2. Turn OFF the power switch on the front of the defective power  
supply.  
3. Unplug and remove the power cord from the rear of the unit that  
corresponds to the failed supply. When facing the front of the unit,  
power supply 1 (on the left) corresponds to the top power cord in  
the rear.  
4. Unscrew the two captive fasteners on the front of the unit using a  
straight blade screwdriver.  
5. Pull forward on the handle to remove the sliding tray.  
6. Unscrew the four nuts securing the inner tray to the sliding tray.  
7. Lift the inner tray from the sliding tray.  
8. Place the new power supply inner tray assembly in the sliding  
tray and screw down the four nuts securing the inner tray.  
9. Check to see that the fuses on the new unit are of the same type  
and rating as the fuses in the replaced power supply. The fuses  
should be 4A, 240V.  
WARNING!  
Failure to perform Step 10 can result in serious  
injury to the user or damage to the equipment.  
10. Ensure that the power switch on the new power supply is turned  
OFF before inserting it into the enclosure.  
11. Push the sliding tray back into the enclosure, being careful to align  
the card guides.  
12. To ensure maximum safety, and to ensure that the connectors have  
seated properly, re-tighten the captive fasteners using a straight  
blade screwdriver.  
13. Once the new supply is completely installed, re-insert and plug in  
the power cord, and turn the power switch to the ON position.  
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Hardware Maintenance Procedures  
5.2.2 SFCS-1000 Power Supply Module Replacement  
5.2.2.1  
Replacing an SFCS-1000 AC Power Supply (Model A)  
A model AAC power supply module for an SFCS-1000 is shown in Figure 3.2.  
AC  
48V DC  
5VDC OK  
SHUTDOWN  
CAUTION: This unit has more than one  
power cord. To reduce the risk of  
electric shock, disconnect two power  
supply cords beCabletron servicing.  
ATTENTION: Cet appareil comporte plus  
d’un cordon d’alimentation. Afin  
de prevenir les chocs electriques,  
debrancherles 2 cordons d’alimentation  
avant de faire le depannage.  
Retaining  
screws  
Ejection/insertion  
handle  
CAUTION: Double pole/neutral fusing  
F12A/250V  
Figure 5.2 - Model A SFCS-1000 AC Power Supply  
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Hardware Maintenance Procedures  
The procedure for hot-swapping a model A SFCS-1000 AC power supply is as  
follows:  
WARNING!  
A replacement DC power supply should  
never be placed in an SFCS-1000 that already  
contains an AC power supply, and vice-versa.  
If these instructions are not heeded, there is a  
risk of electrical shock, danger to personal  
health, and serious damage to the equipment.  
WARNING!  
It is highly recommended that you use the  
included grounding strap when handling this  
or any other component.  
1. Determine which power supply is defective by examining the  
power supplies themselves. A red LED or an extinguished LED  
indicates the failed supply. On an SFCS-1000, power supply “1” is  
in the slot labeled PS1 on the chassis, while power supply “2” is in  
the slot labeled PS2 on the chassis.  
WARNING!  
Failure to perform Step 2 can result in serious  
injury to the user or damage to the equipment.  
2. Turn OFF the power switch on the front of the defective power  
supply. Wait for the yellow SHUTDOWN LED to extinguish  
before moving to Step 3.  
3. Unplug and remove the power cord from the failed supply.  
4. Unscrew the four retaining screws with a 3/32-inch Allen wrench  
and pull forward on the handle located below the power cord.  
5. Remove the defective supply and prepare to install the new one.  
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Hardware Maintenance Procedures  
WARNING!  
Failure to perform Steps 6 or 7 can result in  
serious injury to the user or damage to the  
equipment.  
6. Ensure that the power switch on the new power supply is turned  
OFF before inserting it into the enclosure.  
7. Ensure that the fuses on the new unit are rated at 12.5A, 250V.  
8. Carefully align the guide rails on the new AC power supply in the  
slot.  
9. Push on the center of the front panel of the power supply to slide  
it back into the enclosure.  
10. To ensure maximum safety and to ensure that the connectors have  
been seated properly, re-tighten the four retaining screws using a  
3/32-inch Allen wrench.  
11. Reconnect and plug in the power cord to the new power supply.  
12. Turn the power switch on the new supply to the ON position.  
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Hardware Maintenance Procedures  
5.2.2.2  
Replacing an SFCS-1000 AC Power Supply (Model B)  
A model B AC power supply module for an SFCS-1000 is shown in Figure 3.3.  
ON/OFF Switch  
Handle  
100 - 120V ~  
200 - 240V ~  
50 - 60Hz  
T15A 250V  
T15A 250V  
PWR  
OK  
Captive  
fasteners  
FAULT  
TEMP  
I LIM  
CAUTION: This unit has more than one power cord. To reduce the  
risk  
of electric shock, disconnect two power supply cords beCabletron servicing.  
ATTENTION: Cet appareil comporte plus d’un cordon d’alimentation.  
Afin de prevenir les chocs electriques, debrancher les 2 cordons  
d’alimentation avant de faire le depannage.  
Figure 5.3 - Model B SFCS-1000 AC Power Supply  
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Hardware Maintenance Procedures  
The procedure for replacing a model B SFCS-1000 AC power supply module  
is as follows:  
WARNING!  
A replacement DC power supply should  
never be placed in an SFCS-1000 that already  
contains an AC power supply, and vice-versa.  
If these instructions are not heeded, there is a  
risk of electrical shock, danger to personal  
health, and serious damage to the equipment.  
WARNING!  
It is highly recommended that you use the  
included grounding strap when handling this  
or any other component.  
1. Determine which power supply is defective by examining the  
power supplies themselves. An extinguished “PWR OK” LED or  
an illuminated “FAULT” LED indicates the failed supply. On an  
SFCS-1000, power supply “1” is in the slot labeled PS1 on the chas-  
sis (top), while power supply “2” is in the slot labeled PS2 on the  
chassis (bottom).  
WARNING!  
Failure to perform Step 2 can result in serious  
injury to the user or damage to the equipment.  
2. Turn OFF the power switch on the front of the defective power  
supply. Wait at least one (1) second after turning off the power  
before moving on to the next step.  
3. Disconnect the AC line from the front of the defective power  
supply.  
4. Unscrew the two captive fasteners (one on the upper, left corner of  
the faceplate and one on the lower, right corner of the faceplate,  
see Figure 3.3) using a straight blade screwdriver.  
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Hardware Maintenance Procedures  
5. Pull forward on the power supply’s handle (located below the  
power switch and AC plug) to remove it from the chassis.  
6. Set the failed supply aside and prepare to install the new one.  
WARNING!  
Failure to perform Steps 7 or 8 can result in  
serious injury to the user or damage to the  
equipment.  
7. Ensure that the power switch on the new AC power supply is  
turned OFF before inserting the supply into the metal enclosure.  
8. Check to see that the fuses on the new unit are rated at 15A, 250V.  
9. Set the supply on the guide rails in the enclosure so that the sup-  
ply is properly aligned in the slot. Position the supply so that the  
rear connectors are on top.  
10. Once the rails are properly aligned, push on the handle on the  
front of the supply to slide it back into the chassis. Press firmly to  
ensure that the connectors on the rear of the supply have mated  
with those on the backplane.  
11. To ensure maximum safety and to ensure that the connectors have  
mated properly, tighten the two captive fasteners on the front of  
the supply using a straight blade screwdriver.  
12. Once completely installed, you may reconnect the AC line and  
turn the power switch to the ON position.  
13. After a second or two, the PWR OK LED on each supply illumi-  
nates green, indicating that the supply is functioning properly.  
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Hardware Maintenance Procedures  
5.3 SFCS-1000 Fan Tray Replacement  
The SFCS-1000 has a removable fan tray with large fans that cool the switch  
hardware and power supply modules. Located at the base of the upright unit,  
the fan tray is removable from the front of the unit and is hot-swappable,  
meaning that it can be replaced with the SFCS-1000 under power. The proce-  
dure for replacing a fan tray is as follows:  
WARNING!  
It is highly recommended that you use the  
included grounding strap when handling this,  
or any other component.  
1. Remove the four retaining screws at the top of the fan tray with a  
3/32-inch Allen wrench.  
2. Remove the fan tray by pulling it away from the switch unit.  
3. Set the old fan tray aside and place the new fan tray in front of the  
vacant slot in the SFCS-1000.  
4. Insert a new fan tray in the slot and slide it all the way into the  
chassis. Seat the connectors by pressing firmly on the unit (this  
will apply power to the fan tray).  
5. Once seated, replace the four screws removed in Step 1 above.  
This will properly secure the unit in the chassis.  
CAUTION  
Do not run the unit for any great length of  
time without the fan tray installed or the unit  
will shut itself down because of an overtem-  
perature condition.  
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Hardware Maintenance Procedures  
5.4 Switch Control Processor Replacement  
The following procedure explains how to remove an i960 switch control  
processor (SCP) from a switch fabric and install a new SCP.  
WARNING!  
It is highly recommended that you use the  
included grounding strap when handling this  
or any other component.  
CAUTION  
Do not attempt to remove or replace an SCP  
without first removing all connections to the  
SCP (i.e., serial or Ethernet connections).  
1. Loosen the two captive fasteners on either edge of the SCP using  
a straight screwdriver.  
2. Pull firmly and carefully on the two captive fasteners, removing  
the SCP from the switch fabric as shown in Figure 3.5.  
Tx  
C
Rx  
L
PWR  
RESET  
ETH  
SER  
NEXT  
SELECT  
Loosen captive fasteners  
and pull STRAIGHT out.  
Figure 5.4 - Removal of an SCP  
3. Set the old SCP aside.  
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Hardware Maintenance Procedures  
CAUTION  
Take care to properly align the SCP in the card  
guides in the following step.  
4. Insert the new SCP into the switch fabric by sliding it into the card  
guides.  
5. Push firmly to seat the SCP so that its faceplate is flush with the  
front panel of the switch board.  
6. Re-tighten the captive fasteners with a straight screwdriver to  
ensure the SCP is secure.  
Once the SCP has been installed and the system reboots, the PVCs will be re-  
established provided that none of the network modules were replaced after  
the SCP was removed and provided that all of these steps have been per-  
formed properly.  
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Hardware Maintenance Procedures  
5.5 Switch Board Replacement  
The switch boards in the SFCS-1000 are hot-swappable, meaning that they  
can be removed and replaced with the chassis under power. The proper pro-  
cedure for hot-swapping a switch board is as follows:  
WARNING!  
It is highly recommended that you use the  
included grounding strap when handling this,  
or any other component.  
CAUTION  
Ensure that any unpopulated switch board  
slots are covered with a blank panel before  
turning on your SFCS-1000. Operating the  
switch with any of these slots left open can  
cause a significant temperature rise in a very  
short time.  
NOTE: As a precaution, it is recommended that you  
back up your CDB before performing this  
process. Instructions for backing up your  
CDB can be found in Appendix C, AMI  
Operation Commands, of the Cabletron ATM  
Switch Configuration Manual.  
NOTE: Only replace a switch board with another  
switch board of the same type (i.e., an  
SFCS-1000 switch board with an SFCS-1000  
switch board).  
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Hardware Maintenance Procedures  
NOTE: To ensure that the switch will work with the  
previously established network configuration, the  
relative position of the network modules must  
not change when you transfer them to the new  
fabric. For example, an OC-3c network module  
that is removed from slot A of the old switch  
fabric must be installed in slot A of the new  
switch fabric. Therefore, it is recommended that  
you label all network connections and network  
modules before removing them.  
NOTE: To maintain your CDB, the SCP must be  
removed before the network modules are  
removed and it must be installed in the new  
fabric after the network modules have been  
installed.  
1. Log out of all open AMI sessions on the switch board that is to be  
replaced.  
2. Remove the SCP from the old switch board using the instructions  
found in Section 3.4, Switch Control Processor Replacement. Place  
the SCP on a clean, static-free work area.  
3. Label and remove all fibers or coaxial cables connected to the  
ports on the switch board that is to be replaced. Then label and  
remove all network modules from the old switch board using the  
instructions found in Section 3.1, Network Module Replacement.  
Place the network modules on a clean, static-free work area.  
4. Unscrew the retaining screws at the top and bottom of the switch  
board with a 3/32-inch Allen wrench. On an SFCS-1000, press the  
top black locking tab up towards the top and bottom black locking  
tab down towards the bottom of the chassis until they are parallel  
with the front panel of the switch.  
5. Using the tabs as a handle, pull the switch board out of the chassis.  
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Hardware Maintenance Procedures  
CAUTION  
Make sure the replacement board is properly  
aligned in the slot in the next step.  
6. Carefully slide the replacement board into the chassis using  
enough force to ensure that the connectors on the board mate with  
the connectors in the chassis.  
7. Be sure to align the holes properly and screw the board into the  
chassis using the screws at the top and bottom of the board.  
Tighten until snug, but do not overtighten.  
8. Re-install the network modules using the instructions found in  
Section 3.1, Network Module Replacement. Reconnect all fibers or  
coaxial cables to the ports.  
9. Re-install the SCP using the instructions found in Section 3.4,  
Switch Control Processor Replacement.  
Once the SCP has been installed and the system reboots, the PVCs will be re-  
established if all of the steps have been performed correctly and in the proper  
sequence.  
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Hardware Maintenance Procedures  
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CHAPTER 6 Software Upgrade Instructions  
This chapter details the steps necessary to upgrade the software on your  
Cabletron ATM switch. Some instructions in this chapter are only necessary  
under certain conditions—check the following before you proceed:  
• If, after performing the upgrade, you wish to continue using an older  
version of software on your switch, you must read Section 6.4.  
• If you wish to begin using the latest version of software immediately  
after performing the upgrade, you can skip Section 6.4.  
• If you are unable to boot your switch from its FLASH, you must fol-  
low the instructions in Section 6.5.  
First, you need the upgrade file from Cabletron Systems. This file can be  
obtained via ftp or diskette. To obtain the file via ftp, you must have ftp  
access. To obtain the file from diskette, you will need the distribution dis-  
kettes from Cabletron Systems.  
NOTE: Sections 6.1 - 6.4 detail how to upgrade an  
SFCS200WG, SFCS-200BX or an SFCS-1000.  
NOTE: You will also need a UNIX workstation with  
at least 5 Mbytes of free disk space. If you are  
upgrading from the distribution diskettes, the  
UNIX workstation must also be equipped  
with a floppy drive. The UNIX workstation  
must be connected (via ATM or Ethernet) to  
the SCP being upgraded.  
CAUTION  
As a precaution, it is recommended that you  
back up your CDB before performing the  
upgrade process. For more information, see  
the section entitled, “Backing Up the CDB” in  
Appendix C of the Cabletron ATM Switch  
Configuration Manual.  
NOTE: Each of the SCPs on an SFCS-1000 must be  
upgraded individually.  
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Software Upgrade Instructions  
6.1 Obtaining the Software Upgrade File via Diskette  
Using the Cabletron Systems distribution diskettes, the upgrade software  
must be installed on a workstation attached (via Ethernet or ATM) to the SCP  
being upgraded. The first disk contains a part of the distribution software, as  
well as a script that extracts the remaining software from the rest of the disks  
and builds the upgrade distribution on the workstation. The first disk can be  
extracted using the ta r command:  
ta r -xvf <d e vic e >  
where <d e vic e > is the block device name of the floppy drive. This disk  
should then be ejected from the floppy drive. On a SunOS system, the follow-  
ing command will eject a floppy disk:  
e je c t <d e vic e >  
where <d e vic e > is the block device name of the floppy drive. On other oper-  
ating systems, there may be a different command for ejecting a floppy disk or  
there may be a manual eject button. If there is a manual eject button, eject the  
disk and proceed. If there is a UNIX command for ejecting the floppy, use that  
command to eject the floppy and proceed.  
At this point, two files should have been created: fo re _e xtra c t and  
SFCS-200BX_<version> (where <version> is the new software version). The  
fo re _e xtra c t file is the script that will extract the files from the other floppies.  
If there is a command to eject a floppy on your system, set the following envi-  
ronment variable so the fo re _e xtra c t script can properly eject the floppies:  
setenv FORE_EJECT <eject_command> (for csh)  
or  
FORE_EJECT<=eject_command>;export FORE_EJECT (for sh)  
On a Sun running SunOS 4.1.x, set the following environment variable so the  
fo re _e xtra c t script can properly eject the floppies:  
setenv FORE_EJECT eject  
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Software Upgrade Instructions  
Execute the fo re _e xtra c t script with the following command:  
./ fore _e xtra c t <d e vic e >  
Once again, <d e vic e > is the block device name of the floppy drive. You will  
be asked to insert the remaining disks in sequence. If these steps are per-  
formed correctly, something similar to the following should appear on the  
screen:  
filename: ASX-200BX_<version>  
directory: <directory from which it was extracted>  
The fo re _e xtra c t script will create a file called ASX-200BX_<version> in the  
current directory. This is the file that the SCP will use to upgrade its software.  
You will need to provide this filename and path later during the upgrade pro-  
cess.  
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Software Upgrade Instructions  
6.2 Performing the Software Upgrade  
To perform the software upgrade, you will use the o p e ra tio n up g ra d e com-  
mand in AMI. The underlying file transfer mechanism used by this command  
is TFTP. If TFTP is to run properly between two machines, the file(s) being  
transferred must reside in a specific directory called “tftpboot.” TFTP oper-  
ates this way for security reasons.  
When the o p e ra tio n up g ra d e command is issued in AMI, the switch starts  
up TFTP to the host, which searches for the file requested. The host, which is  
running TFTP, looks for the file in /tftpboot. When creating the path and file-  
name to transfer the file to the switch, the host appends “/tftpboot” in front  
of the path name that appears after the colon (:) in the o p e ra tio n up g ra d e  
command.  
For example, issuing o p e ra tio n up g ra d e 169.144.3.54:a sx-sc p _4.0.0_1.3  
will cause TFTP to transfer the file “/tftpboot/asx-scp_4.0.0_1.3.” For this rea-  
son, it is imperative that you place the upgrade file in the /tftpboot directory  
on the workstation to which you downloaded/extracted the file. If this direc-  
tory does not already exist, create it by issuing the following command on the  
workstation:  
m kd ir / tftp b oot  
Now move the upgrade file to the /tftpboot directory with the following  
command:  
m v <file na m e > / tftp b oot  
Once you have moved the software upgrade file to the /tftpboot directory on  
your workstation, you need to invoke the upgrade process on the SCP. Log in  
to AMI and enter the following parameters at the localhost::>prompt:  
op e ra tion up g ra d e ?  
This will display the specific parameters that you need to enter as follows:  
up g ra d e <re m ote host>:<full p a th to re m ote file >  
Enter the remote machine name or IP address of the workstation to which  
you downloaded/extracted the upgrade file in the re m o te ho st field. In the  
full p a th to re m o te le field, enter ONLY the filename of the upgrade file  
(which should be in the /tftpboot directory on the remote host).  
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NOTE: If you obtained the upgrade file via ftp, full  
p a th to re m o te le is the name of the  
uncompressed file. If you obtained the file  
from diskette, full p a th to re m o te le is the  
path name printed during extraction.  
For example, if you used ftp, you would enter something similar to the fol-  
lowing:  
op e ra tion up g ra d e 169.144.3.54:a sx-sc p _4.0.0_1.3  
If you extracted the file from diskette, you would enter something similar to  
the following:  
op e ra tion up g ra d e 169.144.3.54:ASX-200BX_4.0.0_1.3  
In either case, you should receive messages similar to the following:  
Received 688128 bytes in 5.3 seconds  
upgrade successful  
Reboot the switch[y]?  
NOTE: You have an important decision to make now.  
At this point, the boot pointer will have the  
new software’s filename in it. A reboot will  
load the new version of software to FLASH,  
and the switch will be running the upgraded  
version when it comes up. If you wish, how-  
ever, you can still run the old version of soft-  
ware. If you want to use the old version and  
change to the new version at a later time,  
enter n at the reboot prompt and follow the  
instructions in the next section, “Changing  
between Multiple Versions of Software.”  
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To use the new version of software that you have just loaded, type y and press  
<ENTER> or simply press <ENTER> to reboot.  
Reboot the switch[y]? y  
Once the SCP reboots, you will be closed out of all active sessions on the SCP.  
You will need to log in to AMI again if you want to begin another session.  
NOTE: If something went wrong during the upgrade  
process, a new file named “upgrade” will  
appear in the FLASH file system and you will  
not be prompted with the “Reboot the  
switch [y]?” message.  
If the upgrade is unsuccessful or if you have any other problems with the  
upgrade, please contact Cabletron Systems’ Technical Support.  
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Software Upgrade Instructions  
6.3 Changing between Multiple Versions of Software  
It is possible to select between multiple versions of installed software at any  
time (not just during an upgrade procedure). You can display all the versions  
that are installed by typing the following:  
localhost::operation flash> d ir  
FT330.35  
CURRENT  
FT340.11  
However, in this list, CURRENT is simply a pointer to the version that will be  
used as the current switch software AFTER a reboot. To display the version to  
which CURRENT is pointing, as well as all the versions that are installed, type  
the following:  
localhost::operation> ve rsio n  
Software versions installed : FT330.35 FT340.11  
Current software version is FT330.35  
Notice that no parameter for ve rsio n was specified above. If no parameter is  
specified, it will list the current and installed versions, but will not change  
anything.  
In this example, to change the current version of software from FT330.35 to  
FT340.11, type the following:  
localhost::operation> ve rsio n FT340.11  
Current software version is FT340.11  
Software versions installed : FT330.35 FT340.11  
NOTE: By using the operation version command and  
specifying a version, you change the version  
to which CURRENT is pointing.  
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At this point, the switch is still running FT330.35, but CURRENT is pointing to  
FT340.11. To make the change complete, enter the following:  
localhost::operation> re b o o t  
Are you sure you want to reboot this switch [n]? y  
When the SCP reboots, it will look to see which version that CURRENT is spec-  
ifying. In this case, it will see FT340.11 and use that version.  
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6.4 Using bootp to Download Software to the Switch  
NOTE: Section 6.5 needs to be performed only if your  
SCP fails to boot from its FLASH.  
6.4.1 Overview  
Each SCP on a Cabletron switch comes with its hardware address (Ethernet  
MAC address) burned in from the factory, but it does not come preconfigured  
with an IP address. Any time that the switch is turned on, the SCP attempts to  
boot from its FLASH memory.  
If an SCP can not boot from its FLASH (e.g., the FLASH has recently been ini-  
tialized or the switch software image in the FLASH is corrupt), it attempts to  
locate a bootp server on its Ethernet interface.  
The SCP broadcasts its Ethernet MAC address in a bootp datagram. Bootp  
servers on the network that receive that broadcast look up that MAC address  
in their bootptab file. If they find an entry for that MAC address, they broad-  
cast a reply to the SCP that contains a pointer to a switch software image file  
residing on the bootp server.  
When the SCP sees the bootp reply, it initiates a tftp session with the bootp  
server using the path and filename returned in the datagram from the server.  
6.4.2 Setting Up Your bootp Server  
If the process described above is to happen, you need to provide the bootp  
server with the SCP’s Ethernet MAC address and the path to the switch soft-  
ware image.  
Before the bootp server will work, you must add or uncomment the following  
line in / e tc / ine td .c o nf:  
bootps dgram udp wait root /etc/bootpd -d4 /etc/bootptab  
with the b o o tp d and the b o o tp ta b files in the / e tc directory. Also, the fol-  
lowing line must appear in / e tc / se rvic e s:  
bootp  
67/udp  
bootps  
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Before any of the above changes can take effect, ine td must re-read the config-  
uration file.  
NOTE: If you need to set up a tftpboot server, as  
described in Section 6.5.4, the following pro-  
cess is not necessary at this time. Instead,  
make ine td re-read its configuration file after  
setting up your server.  
Determine the process number of ine td by entering the following:  
host: p s -a ux | g re p ine td  
Something similar to the following will be displayed:  
root  
216 0.0 0.0  
48  
0 ? IW  
Jan 27 0:14 inetd  
where 216 represents the process number of ine td .  
Now that you know the process number, enter the following command line to  
make ine td re-read its configuration file:  
host: kill -HUP 216  
6.4.3 Adding an Entry for Your Switch in the bootptab File  
On the workstation that is the bootp server, add the following lines to  
/ e tc / b o o tp ta b :  
NOTE: The lines given here are an example. See the  
descriptions that follow for an explanation of  
the values that you need to enter on your  
SCP.  
myswitc h:\  
:ht=e the r:\  
:ha =002048200097:\  
:sm =255.255.255.0:\  
:b f=up g ra d e -file :  
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NOTE: Make sure the last line added to b o o tp ta b  
ends in a colon (:) and not a backslash (\).  
Otherwise, that line will merge with the next  
entry, causing your switch to cycle in its  
attempts to find a bootp server.  
The variables in the previous example are defined as follows:  
myswitch  
ht  
Indicates the name you have assigned to your SCP.  
Indicates the hardware type. For the purposes of switch  
software image loading, this is e the r (stands for Ether-  
net).  
ha  
Indicates the hardware address. This is the Ethernet  
MAC address of your SCP that is burned in from the fac-  
tory. If you connect a terminal device to the SCP’s serial  
port, you will see the Ethernet MAC address displayed  
during the EPROM boot sequence.  
sm  
bf  
Indicates the subnet mask. This is the subnet mask for  
your network.  
Indicates the bootfile. This is <yo ur b o o t ima g e le  
na m e >.  
NOTE: For more information about bootp, please  
refer to RFC-1048 and RFC-951.  
Once these lines are added, the bootp server will be able to tell your SCP  
where to find the switch software image to be downloaded. The next step in  
performing the upgrade is to set up a workstation as a tftpboot server and put  
the upgrade file (the line indicated by b f in the previous example) there.  
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Software Upgrade Instructions  
6.4.4 Setting Up a tftpboot Server  
To set up a tftpboot server, on a SunOS 4.1.x system, perform the following  
steps:  
NOTE: This procedure only has to be done the first  
time that the switch is turned on and each  
SCP is upgraded. The next time that the soft-  
ware is upgraded, put the upgrade file in  
/ tftp b o o t.  
1. In / e tc / ine td .c o nf, uncomment the last line shown below so that the file  
appears as follows:  
#
# Tftp service is provided primarily for booting. Most sites  
# run this only on machines acting as “boot servers.”  
# Since these can be security holes, they are commented out by default.  
#
tftp dgram udp wait root /usr/etc/in.tftpd in.tftpd /tftpboot  
2. Add the following line to / e tc / se rvic e s:  
tftp  
69/udp  
3. Set up the tftp b o o t directory with the following command lines:  
host: m kd ir / tftp b o o t  
host: c p <up g ra d e -file > / tftp b o o t  
4. At the root level, determine the process number of ine td by entering the  
following:  
host: p s -a ux | g re p ine td  
Something similar to the following will be displayed:  
root  
216 0.0 0.0  
48  
0 ? IW  
Jan 27 0:14 inetd  
where 216 represents the process number of ine td .  
5. Enter the following command to make ine td re-read its configuration file:  
host: kill -HUP 216  
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APPENDIX A Troubleshooting  
The troubleshooting tests detailed in this appendix will clearly indicate and  
identify the most common problems in establishing ATM networks. There-  
fore, before calling Cabletron Systems’ Technical Support, perform these tests  
to correct or at least pinpoint the problem.  
If you need to call Technical Support, please have the results of these tests  
ready, in addition to the information requested in Section A.3, when reporting  
your problem.  
A.1 Adapter Hardware Troubleshooting  
The flowchart in Figure A.1 illustrates the tests used to check the basic hard-  
ware functionality of a Cabletron Systems adapter, with the adapter card iso-  
lated from the network. The tools used to perform the tests are provided by  
Cabletron Systems and the computer hardware vendor. Each of the tests, indi-  
cated by the diamond-shaped blocks in Figure A.1, is described individually  
in the following subsections.  
A-1  
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Troubleshooting  
Test the  
software as in  
Figure A.3.  
y
n
Looptest  
passed?  
Start  
n
Tried  
reseating the  
board?  
n
Reseat the  
board.  
Self-test  
passed?  
y
y
Call Cabletron.  
Firmware  
download  
successful?  
n
Call Cabletron.  
y
Tried  
reseating the  
board?  
Run netstat -i.  
Has driver detected  
presence of  
n
n
Reseat the  
board.  
HW?  
y
y
Call Cabletron.  
Is  
Tried  
rebooting the  
system?  
firmware  
running  
correctly?  
n
n
Reboot the  
system.  
y
y
Call Cabletron.  
Is  
fiber  
bad?  
n
n
Run atmstat -d.  
Is the physical link  
OK?  
Call Cabletron.  
y
y
Change  
fiber.  
Call Cabletron.  
Figure A.1 - Adapter Hardware Troubleshooting Flowchart  
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Troubleshooting  
A.1.1 Run Looptest  
To determine if an interface is functioning properly, run the lo o p te st utility  
on a host that has been disconnected and isolated from the network.  
NOTE: Before running lo o p te st, the Receive and  
Transmit connectors on the backplate of the  
card must be connected to each other using a  
short loop of fiber-optic cable. This fiber  
should remain on throughout this test.  
The lo o p te st utility uses Cabletron Systems’ ATM user-level Application Pro-  
gramming Interface. For proper operation, lo o p te st requires read/write  
access to the ATM device. To run lo o p te st, enter the following command at  
the system prompt in the working directory:  
loop te st fa 0  
where fa 0 is the default device name for a single ATM adapter.  
The lo o p te st utility verifies that the board of an adapter is operating cor-  
rectly. Correct operation means that all of the following conditions are true:  
1. The self-test has been passed successfully.  
2. The firmware has been downloaded successfully.  
3. The driver has detected the existence of the hardware.  
4. The firmware is running.  
5. The physical link is up.  
If lo o p te st passes, then the board hardware of the adapter is OK. The next  
step is to test the software as shown in Figure A.3.  
If lo o p te st fails, the point of failure will be indicated by messages generated  
for each of the five items above. Refer to the following subsections for instruc-  
tions about testing the individual items.  
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Troubleshooting  
A.1.2 Check Self-Test (Automatically Performed)  
During a system boot, the ATM adapter automatically performs a self-test of  
the hardware, running a low-level diagnostic which checks memory  
read/write capability. Upon completion of the self-test, a message is printed  
to the console of the workstation indicating whether or not the hardware  
failed.  
If the self-test is successful, proceed to the instructions regarding the firmware  
download as described in the next subsection.  
If the self-test fails, reseat the board by performing the following steps to  
ensure that failure was not due to improper insertion of the board:  
1. Halt the system, being sure to follow the procedures outlined in  
Chapter 2 of the User’s Manual for the adapter.  
2. Open the computer as shown in Chapter 2 of the User’s Manual  
for the adapter, and reseat the board.  
3. Reboot the system.  
If the board still fails after a reseat, then it should be returned for repair. Call  
Cabletron Systems’ Technical Support for further assistance.  
A.1.3 Firmware Download (Automatically Performed)  
Before operating as an ATM interface, the firmware is automatically down-  
loaded from the system RAM to the onboard i960 processor during host sys-  
tem boot. A message similar to: “XXX-200 initializing...” is displayed on the  
console, indicating that the board is being initialized. When the initialization  
is complete, success is indicated with the message “done” and failure is indi-  
cated with the message “failed”.  
If the download is successful, check to see if the hardware has been detected  
by the driver as described in the next subsection.  
If the firmware failed to download, then there is most likely a hardware prob-  
lem. Call Cabletron Systems’ Technical Support for further assistance.  
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Troubleshooting  
A.1.4 Hardware Detected by Driver  
To determine if the driver software on the host has detected the presence of an  
ATM adapter board, issue the following command once the host system has  
come up completely:  
ne tsta t -i  
If the driver has located the ATM board, the screen output shows fa 0 in  
response to the ne tsta t command. If there is more than one adapter card, the  
next board will be named fa 1, and so on. If you have configured a Classical IP  
interface, this will also be shown. The option -i shows the state of interfaces  
that were auto-configured, as happens when the Cabletron software is loaded  
and run upon system boot. Interfaces statically configured in a system, but  
not located at boot time, are not shown.  
If the driver does not see the ATM board, no response will be given. Reseat  
the board by performing the following steps to ensure that failure was not  
due to improper insertion of the board:  
1. Halt the system, being sure to follow the procedures outlined in  
Chapter 2 of the User’s Manual for the adapter.  
2. Open the computer as shown in Chapter 2 of the User’s Manual  
for the adapter, and reseat the board.  
3. Reboot the system.  
If the board still fails after a reseat, then it should be returned for repair. Call  
Cabletron Systems’ Technical Support for further assistance.  
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Troubleshooting  
A.1.5 Check Firmware  
To check whether or not the firmware is running correctly, issue the following  
command:  
a tm sta t fa 0 1  
In this command, the last parameter “1”, causes the command to be repeated  
at one-second intervals.  
If the firmware is running correctly, the response will show Input, Output,  
and Error Statistics for the adapter in the following format:  
PHY/ATM/AAL statistics:  
Output  
ATM AAL*  
Input  
AAL*  
Cells CS-PDUs Framing Hdr-CRC VPI/VCI Pay-CRC Proto  
142289 134685 20 0  
Errors  
ATM  
4B5B  
4B5B  
ATM AAL*  
AAL*  
Cells CS-PDUs  
161747 153692  
0
0
0
If the firmware is not running correctly, a tm sta t hangs and nothing is  
returned, indicating either a problem with the firmware, a problem with the  
board, or a severe software failure. Call Cabletron Systems’ Technical Support  
for further assistance.  
If the output shows zeros for all possible values, the firmware may not have  
been initialized. Try rebooting the system. If there is still a problem, call  
Cabletron Systems’ Technical Support for further assistance.  
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Troubleshooting  
A.1.6 Check Physical Link  
To see the carrier state of the board, issue the following command:  
a tm sta t -d fa 0  
The -d option displays device statistics in the following format:  
Device statistics:  
Buffer Allocation Failures  
Type 1  
Type 2  
Small  
Small  
Large  
0
Large  
0
Receive Queue Full  
0
Carrier  
ON  
0
0
If ON is displayed in the Carrier field, then the physical link is fine.  
If the board does not see a carrier (OFF is displayed in the Carrier field), then  
there is either a problem with the loopback fiber or there is a hardware prob-  
lem with the optical drivers on the board. Check the fiber. If the fiber is bad,  
replace the fiber and run lo o p te st again. If the fiber is not bad, then call  
Cabletron Systems’ Technical Support for further assistance.  
Alternatively, if you have access to the back of the host and can see the LED  
displays on the adapter backplate, a red LED on the R (Receive port) also  
indicates carrier failure.  
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Troubleshooting  
A.2 Testing Network Connectivity Using PVCs  
The network connectivity tests require that two ATM adapters be connected  
to an ATM switch fabric with PVCs (as shown in Figure A.2). The carrier  
lights should be extinguished on the adapters and on the switch fabric, indi-  
cating that the fibers are OK.  
Local Host  
ATM Switch  
Remote Host  
Run p ing IP  
Run a tm sta t fa 0 1  
Figure A.2 - Hardware Configuration for Checking PVCs  
The network connectivity test suite, shown in Figure A.3, examines higher  
level functionality after basic adapter board performance has been verified by  
passing all the tests and checks shown in Figure A.1.  
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Troubleshooting  
Figure A.3 - Networking Connectivity Using PVCs  
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Troubleshooting  
This test sequence requires that the switch fabric be configured with a valid  
PVC and the endstations to have the proper IP configuration and ATM ARP  
cache entries. The tests in Figure A.3 assume that there is no IP connectivity  
between the two endstations. The lack of an IP connection is checked by try-  
ing a p ing and getting no response (p ing failed).  
The tests in Figure A.3 also require that if a switch fabric is used, it is a  
Cabletron Systems switch fabric on which SPANS has been disabled on both  
the ports of the switch fabric and on the ATM endstations. SPANS must be  
disabled because it automatically creates ATM connections, which may alter  
the test results.  
All of the failure conditions are the result of running a continuous ping with  
the following command:  
p ing <IP_a d d re ss_of_re m ote _worksta tion>  
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Troubleshooting  
A.2.1 Verifying the Outgoing ATM ARP Entry  
To verify the outgoing ATM ARP cache entry for the endstation originating  
the ping, enter the following command on the host:  
a tm a rp -a  
The following is an example of a typical ATM ARP cache display:  
Outgoing connections:  
fa0: ws2-atm (198.29.21.74): vpi.vci=0.100 aal=5  
switch.port=-.-  
flags=(PVC) encapsulation=NULL peak rate=(unlimited)  
fa0: ws3-atm (198.29.21.94): vpi.vci=0.200 aal=5  
switch.port=-.-  
flags=(PVC) encapsulation=NULL peak rate=(unlimited)  
Incoming connections:  
fa0: switch.port=-.- vpi.vci=0.100 aal=5 flags=(PVC) decapsulation=NULL  
fa0: switch.port=-.- vpi.vci=0.200 aal=5 flags=(PVC) decapsulation=NULL  
Make sure the ARP cache entry does indeed match the IP address of the  
remote endstation and is using the PVC configured on the switch fabric.  
If the prompt is returned with no information displayed, this indicates that  
the ATM ARP cache is empty.  
Use the following two commands to create a PVC on the host:  
./ a tm a rp -s <hostna m e > <d e vic e > <vp i> <vc i> <a a l>  
./ a tm a rp -l <d e vic e > <vp i> <vc i> <a a l>  
If the ATM ARP cache entry is valid, then perform the instructions in the next  
subsection for a tm sta t.  
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Troubleshooting  
A.2.2 atmstat  
To determine a particular failure state, enter the following command on the  
remote workstation while continuously pinging:  
a tm sta t fa 0 1  
PHY/ATM/AAL statistics:  
Output  
ATM AAL*  
Input  
AAL*  
Errors  
ATM  
ATM  
4B5B  
4B5B  
AAL*  
AAL*  
Cells CS-PDUs  
161747 153692  
Cells CS-PDUs Framing Hdr-CRC VPI/VCI Pay-CRC Proto  
142289 134685 20  
0
0
0
0
The failure states are determined by examining the output from the a tm sta t  
fa 0 1 command string. The failures are classified by whether or not cells are  
sent (or received) and whether or not errors are received. The output shown  
below is typical of the first response from the a tm sta t fa 0 1 command string.  
Succeeding lines of data continue in the same column format. Refer to the fol-  
lowing subsections for a description of each type of failure.  
A-12  
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Troubleshooting  
A.2.2.1 No Cells Received by Remote End  
If no cells are received by the remote end (the Input ATM Cells field displays  
zero), then run the following command on the local machine to verify that  
cells are going out to the ATM interface:  
a tm sta t fa 0 1  
If there are no cells going out (the ATM Output Cells field shows zero), then  
there is most likely an IP routing problem rather than an ATM problem.  
Please have your network administrator check the IP configuration.  
If cells are going out (the ATM Output Cells field shows a value other than  
zero), then the PVC on the switch fabric may be configured incorrectly. Check  
the PVC configuration. If it is not set up properly, then correct the PVC and  
rerun the test. If the PVC is configured correctly and the error persists, call  
Cabletron Systems’ Technical Support for further assistance.  
A.2.2.2 Cells and VPI/VCI Errors Received by Remote  
If the remote workstation is receiving cells and is receiving VPI/VCI errors,  
then this indicates that cells are coming into the workstation, but are on a  
VPI/VCI that may not be configured correctly.  
Check the PVC configuration. If it is not set up properly, then correct the PVC  
and rerun the test. If the PVC is configured correctly and the error persists,  
then the incoming ARP entry on the remote workstation is most likely the  
problem. List the ATM ARP cache using a tma rp -a and check the incoming  
ARP entry for that connection.  
If the incoming ARP entry is not configured properly, then correct the config-  
uration and rerun the test. If the incoming ARP entry is configured properly  
and the error persists, then call Cabletron Systems’ Technical Support for fur-  
ther assistance.  
A.2.2.3 Cells and AAL* Errors Received by Remote  
If the remote workstation is receiving cells and AAL* errors, it is likely that  
the AAL types of the outgoing entry on the local workstation and the incom-  
ing entry on the remote workstation do not match. Check both ATM AAL  
types using a tm sta t to see if they match. If they are different, set the AAL  
parameter to the same type and rerun the test. If they match and the error per-  
sists, then call Cabletron Systems’ Technical Support for further assistance.  
A-13  
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Troubleshooting  
A.2.2.4 Cells and No Errors Received by Remote and Transmitting No Cells  
If the remote workstation is receiving cells with no errors, but is not transmit-  
ting any cells, then either the outgoing IP address on the remote end is incor-  
rect or the IP encapsulation does not match on both ends. (A Classical IP PVC  
uses LLC/SNAP encapsulation while a regular PVC uses AAL5-based, Multi-  
plexing-based (NULL) encapsulation).  
First, check the outgoing IP address on the remote end using a tma rp -a . If it  
is not configured properly, then correct the configuration and rerun the test. If  
the outgoing ARP entry is configured properly, then check to see if the IP  
encapsulation matches on both ends using a tma rp -a .  
If the IP encapsulation does not match on both ends, then correct the configu-  
ration and rerun the test. If the IP encapsulation matches on both ends and  
the error persists, then there may be an IP routing problem on the remote  
host.  
The network administrator should verify the IP routing. If there is still a prob-  
lem, then call Cabletron Systems’ Technical Support for further assistance.  
A.2.2.5 Cells and No Errors Received by Remote and Transmitting Cells  
If the remote end is receiving cells with no errors and is transmitting cells in  
response, then the remote end is OK. Looking at Figure A.2, reverse the direc-  
tion. From the remote host, start a continuous ping and then run these same  
tests starting again with Section A.2.1, Verifying the Outgoing ATM ARP  
Entry. Watch the results of these tests on the local host.  
A-14  
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Troubleshooting  
A.3 Collecting Additional Information  
Once basic adapter installation and network connectivity have been tested,  
this section explains how to obtain all of the additional information that you  
need to have ready before calling Cabletron Systems Technical Support. This  
information should exist either on-line (by redirecting the output to a file) or  
in hard copy form.  
A.3.1 Basic Information  
The following basic network information is very useful in helping Cabletron  
Systems’ Technical Support staff troubleshoot your problem:  
1. Host platform configuration  
Vendor name  
Platform type  
RAM (MB)  
Disk drive size (approximate)  
2. Patches installed (very important for SunOS and Solaris)  
3. Network topology (physical configuration)  
Sketch and FAX in, if possible  
Please have your support contract ID number and serial number ready, also.  
A.3.2 Adapter Information  
On the host, at a command line, type the following six commands and note  
the responses:  
una m e -a (Shows operating system, and platform names and ver-  
sions)  
ifc o ng fa 0 (Shows adapter interface configuration)  
ne tsta t -nr (Shows routing table with destinations, gateways, and  
flags)  
ne tsta t -in (Shows device names and addresses, and usage informa-  
tion)  
a d info fa 0 (Shows adapter device name and version information)  
a tm sta t -d fa 0 (Shows carrier state and a variety of error counters)  
Typical responses are shown under each command. The responses from these  
commands enable support to gather sufficient information to resolve the  
majority of problems.  
A-15  
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Troubleshooting  
NOTE: The assumed adapter name in the examples  
is fa 0. On your particular system, the adapter  
may have a different designation. To check  
the name of your adapter, use the command:  
ne tsta t -in.  
una m e -a  
IRIX beluga 5.3 11091812 IP22 mips  
ifc ong fa 0  
fa0: flags=863<UP,BROADCAST,NOTRAILERS,RUNNING,MULTICAST>  
inet 198.29.38.206 netmask 0xffffff00 broadcast 198.29.38.255  
ne tsta t -nr  
Routing tables  
Destination  
127.0.0.1  
Gateway  
Flags  
UH  
UG  
UG  
U
Refcnt Use  
Interface  
127.0.0.1  
3
2264661  
lo0  
fa0  
ie0  
fa0  
fa0  
ie0  
ie0  
ie0  
fa0  
ie0  
ie0  
fa0  
fa0  
fa0  
ie0  
198.29.24.0  
default  
198.29.16.74  
192.88.243.19  
198.29.16.54  
198.29.16.28  
192.88.243.19  
192.88.243.19  
192.88.243.19  
198.29.16.85  
192.88.243.54  
192.88.243.19  
198.29.16.8  
198.29.16.2  
198.29.16.75  
192.88.243.53  
1
9751  
123714  
10892307  
2080  
0
3
198.29.16.0  
204.95.89.0  
198.29.25.0  
198.29.26.0  
198.29.27.0  
198.29.19.0  
192.88.243.0  
204.120.44.0  
198.29.28.0  
198.29.29.0  
198.29.31.0  
198.29.23.0  
29  
0
UG  
UG  
UG  
UG  
UG  
U
0
0
2696  
7853  
0
0
0
350  
1
9188789  
1677  
87706  
0
UG  
UG  
UG  
UG  
UG  
0
0
5
16417  
122731  
6
A-16  
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Troubleshooting  
ne tsta t -in  
Name Mtu  
Network  
Address  
Ipkts Ierrs  
1173050 39926  
Opkts Oerrs Coll  
ec0 1500 192.88.243 192.88.243.171  
509363  
0 107115  
fa0 9188 198.29.38  
qaa0 9180 198.29.22  
qaa1*9180 none  
qaa2*9180 none  
qaa3*9180 none  
lo0 8304 127  
198.29.38.206  
198.29.22.206  
none  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
none  
0
0
0
0
none  
127.0.0.1  
32048  
32048  
a d info fa 0  
FORE Systems Release: ForeThought_3.0.1b (1.20)  
fa0: esa-200 media=4b5b-100 hw=1.0.0 fw=2.3.0 serial=2 slot=0  
a tm sta t -d fa 0  
Device statistics:  
Buffer Allocation Failures  
Type 1  
Small Large  
Type 2  
Small  
Large  
0
Receive Queue Full  
0
Carrier  
ON  
0
0
0
A-17  
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Troubleshooting  
A.3.3 Switch Information  
On the host, at a command line, type the following commands and note the  
responses:  
a tm sta t fa 0 command  
ne tsta t -a i command  
a sxm o n command  
c p o rt command  
Log in to the ATM Management Interface (AMI) and open a session on the  
switch fabric to check the following:  
c o ng ura tio n sp a ns show  
c o ng ura tio n p o rt show  
c o ng ura tio n uni30 show  
• Configuration of Network Modules (TAXI, DS3, DS1, SONET, E3, E1,  
and/or J2)  
Typical responses are shown under each command. The responses from these  
commands enables support to gather sufficient information to resolve the  
majority of problems.  
a tm sta t fa 0  
PHY/ATM/AAL statistics:  
Output  
ATM AAL*  
Cells CS-PDUs  
Input  
AAL*  
Errors  
ATM  
ATM  
4B5B  
4B5B  
AAL*  
AAL*  
Cells CS-PDUs Framing Hdr-CRC VPI/VCI Pay-CRC Proto  
276580 273789 0  
476058  
469354  
0
0
0
0
ne tsta t -a i  
Name Mtu  
Network  
Address  
gar-eth  
ALL-SYSTEMS.MCAST.N  
Ipkts Ierrs  
Opkts Oerrs Coll  
0 107117  
ec0 1500 fore  
1174803 39928 509563  
08:00:69:07:e3:93  
198.29.38.206  
ALL-SYSTEMS.MCAST.N  
198.29.22.206  
none  
fa0 9188 198.29.38  
0
0
0
0
0
qaa0 9180 fore-sw  
qaa1*9180 none  
0
0
0
0
0
0
0
0
0
0
0
0
0
lo0 8304 loopback  
localhost  
32072  
32072  
ALL-SYSTEMS.MCAST.N  
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Troubleshooting  
a sxm on <switc h_na m e >  
ASX-200 switch up 3:35, 17 ports (9 active), software 2.3.5, hardware 1.1  
port name  
uptime VPs/max VCs/max  
Kb/s  
free  
0 140000  
0 140000  
max total Mb  
B1 198.29.22.34  
B2 198.29.22.18  
C1 198.29.22.27  
C2 198.29.22.3  
D1 198.29.22.2  
D2 198.29.22.11  
CTL 198.29.22.37  
2:57 1/1  
3:35 1/1  
3:35 1/1  
3:35 1/1  
3:35 1/1  
3:35 1/1  
3:35 1/1  
5/5  
3/3  
0
0
0
0
0
0
0
847  
141  
83035  
11  
4/4  
0 140000  
0 140000  
0 100000  
0 100000  
0 80000  
4/4  
2/2  
11  
3/3  
11  
36/36  
203  
NOTE: In the output above, the Kb / s and fre e  
columns do not contain valid data.  
c p ort <switc h_na m e >  
Input  
Output  
Port Type Mb/s State Time  
B1 user 100 down 19:08:15  
B2 user 100 down 19:08:15  
VPs VCs  
BW  
Cells VPs VCs  
BW  
Cells  
137783  
137784  
149078  
137784  
148928  
193732  
455400  
1046 M  
1 M  
1
1
1
1
1
1
1
1
1
2 100  
2 100  
3 100  
2 100  
4 140  
7 140  
5 140  
5 140  
0
0
1
1
1
1
1
1
1
1
1
2 100  
2 100  
4 100  
2 100  
3 140  
6 140  
6 140  
5 140  
B3 user 100 up  
19:08:15  
141332  
0
B4 user 100 down 19:08:15  
C1 user 140 up  
19:08:15  
02:44:38  
19:08:15  
19:06:57  
19:08:13  
140569  
1046 M  
1297 M  
138800  
1 M  
C2 net  
C3 net  
140 up  
140 up  
C4 user 140 up  
CTL user 80 up  
22  
80  
22  
80  
A-19  
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Troubleshooting  
The following commands are run by logging in to AMI and opening a session  
on the switch fabric. Enter the following parameters at the prompt for the  
type of network modules that are installed in your switch fabric:  
c ong ura tion sp a ns show  
Port VPI State Type  
CDVT Action RemoteAddress  
250 tag  
1C1  
1C2  
1C3  
1C4  
1D1  
1D2  
1D3  
1D4  
1CTL  
0 down uni  
0 down uni  
0 down uni  
250 tag  
250 tag  
0 up  
uni  
250 tag  
250 tag  
250 tag  
250 tag  
250 tag  
0 tag  
169.144.60.108  
0 down uni  
0 down uni  
0 down uni  
0 down uni  
0 up  
uni  
10.10.10.48  
c ong ura tion p ort show  
Port Carrier  
1C1 no  
1C2 no  
1C3 no  
1C4 yes  
1D1 no  
1D2 no  
1D3 no  
1D4 no  
1CTL yes  
Mb/s iVPs iVCs  
iBW oVPs oVCs  
oBw Model  
155.0  
155.0  
155.0  
155.0  
155.0  
155.0  
155.0  
155.0  
80.0  
1
1
1
1
1
1
1
1
1
4 155.0  
4 155.0  
4 155.0  
4 155.0  
2 155.0  
5 155.0  
4 155.0  
4 155.0  
1
1
1
1
1
1
1
1
1
4 155.0 OC3  
4 155.0 OC3  
4 155.0 OC3  
4 155.0 OC3  
3
0.0 OC3  
4 155.0 OC3  
4 155.0 OC3  
4 155.0 OC3  
28  
0.0  
36  
0.0 ASX  
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Troubleshooting  
c ong ura tion uni30 show  
Port VPI State ILMI  
UNIside Type OperType  
RemoteAddress  
1C1  
1C2  
1C3  
1C4  
1D2  
1D3  
1D4  
1CTL  
0 down down  
0 down down  
0 down down  
0 down up  
network auto privateUNI  
network auto privateUNI  
network auto privateUNI  
network auto privateUNI 169.144.64.108  
network auto privateUNI  
network auto privateUNI  
network auto privateUNI  
network auto privateUNI  
0 down down  
0 down down  
0 down down  
0 up  
down  
c ong ura tion p ort ta xi show  
Port Carrier  
1B1 yes  
1B2 yes  
1B3 yes  
1B4 yes  
1B5 no  
State  
up  
Obuf Version Loopback  
Model  
256  
256  
256  
256  
256  
256  
B
B
B
B
B
B
none  
none  
none  
none  
none  
none  
NM-B-TAXI-100-6PT  
NM-B-TAXI-100-6PT  
NM-B-TAXI-100-6PT  
NM-B-TAXI-100-6PT  
NM-B-TAXI-100-6PT  
NM-B-TAXI-100-6PT  
up  
up  
up  
down  
down  
1B6 no  
c ong ura tion p ort d s3 show  
Port Carrier Status Mode Framing Loopback ClockSrc Scrambling IdleCells Length  
1A1 no  
1A2 no  
0x80  
0x24  
hcs cbit  
plcp cbit  
diag  
none  
internal off  
internal off  
unassigned Gt225  
unassigned Gt225  
A-21  
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Troubleshooting  
c ong ura tion p ort d s1 show  
Port Carrier Status Mode Framing Loopback ClockSource LineLength IdleCells  
1C1 no  
1C2 no  
0x60  
0x60  
hcs  
hcs  
ESF  
ESF  
none  
none  
internal  
internal  
Lt110  
Lt110  
unassigned  
unassigned  
c ong ura tion p ort sone t show  
Port Width Carrier Status Line Mode Loopback ClockSource Scramb. IdleCells  
1A1 sts3c no  
1A2 sts3c no  
1A3 sts3c yes  
1A4 sts3c no  
0x2  
0x2  
0x1  
0x2  
SMM  
SMM  
SMM  
SMM  
sonet none  
sonet none  
sonet none  
sonet none  
internal  
internal  
internal  
internal  
on  
on  
on  
on  
unassigned  
unassigned  
unassigned  
unassigned  
c ong ura tion e 1 show  
Port Carrier Status Mode LineType Loopback ClockSource LineLength IdleCells  
1D1 yes  
1D2 yes  
0x100  
0x100  
hcs  
hcs  
CRC  
CRC  
none  
none  
internal  
internal  
Lt110  
Lt110  
idle  
idle  
c ong ura tion p ort e 3 show  
Port Carrier Status Mode Loopback ClockSource Scrambling IdleCells  
1D1 no  
1D2 no  
0x72  
0x72  
hcs none  
hcs none  
internal  
internal  
off  
off  
unassigned  
unassigned  
c ong ura tion p ort j2 show  
Port LineLength  
1D1 short  
1D2 short  
1D3 short  
1D4 short  
Loopback  
none  
ClockSource  
internal  
internal  
internal  
internal  
none  
none  
none  
A-22  
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APPENDIX B SCP Diagnostics  
The tests provided in this section are very specific diagnostics that are only to  
be run if you have determined that there is a problem with your SCP. The  
diagnostics for the SFCS-200WG, SFCS-200BX, and SFCS-1000 are described  
first.  
B.1 SFCS-200WG, SFCS-200BX, SFCS-1000 Diagnostics  
If you have determined that there is a hardware problem on a switch control  
processor (SCP), run the SCP diagnostics that are available by connecting a  
terminal device to that SCP’s serial port.  
NOTE: These diagnostics will only test the  
individual SCPs, not the switch fabrics  
themselves.  
NOTE: All AMI sessions should be closed before  
these test are run.  
NOTE: It is recommended that you back up your  
CDB before running any tests that check the  
FLASH and/or the SRAM. The chips are  
saved before testing each one and then  
restored. However, if a power failure would  
occur or if the switch were rebooted during  
the test, some of the data may not be restored  
properly.  
B-1  
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SCP Diagnostics  
B.1.1 Accessing the Monitor Mode  
To access the Monitor mode on an i960 SCP to run these tests, perform the fol-  
lowing steps:  
1. Soft boot the SCP by pressing the RESET button on the front panel  
of the SCP. Because the RESET button was designed to avoid acci-  
dental resets, you will need to use a straightened paper clip to  
push the RESET button.  
2. Press the SELECT button on the front panel of the SCP. The dis-  
play LED will cycle through the following parameters:  
- 12:00 a.m.  
- TTY Test  
- DRAM 00-15 MB  
- DRAM OK  
- Timer T  
- Clock T  
- TEST BUS  
- FLASH?  
3. When the display LED shows FLASH?, press the NEXT button.  
ETHERNT? will be shown on the display LED.  
4. Press the NEXT button again so that MONITOR? is shown on the  
display LED.  
5. Press the SELECT button. The ? will disappear from MONITOR  
on the display LED, indicating that MONITOR has been chosen.  
The terminal device will indicate that user is in the SCP Debug  
Monitor.  
6. Press the RETURN key on your terminal device’s keyboard to get  
to the =>prompt.  
7. At the =>prompt, type ? and press the RETURN key. The follow-  
ing menu will be displayed:  
Available commands are:  
he [cmd]  
? [cmd]  
ve  
- help info for optional cmd  
- help info for optional cmd  
- print out version header  
- reset board, retaining baud rate  
- reset board and autobaud  
rs  
rb  
B-2  
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SCP Diagnostics  
do [offset]  
ps [address]  
- download using Xmodem  
- single step through program, skipping procedure  
calls  
st [address]  
go [address]  
- single step through program  
- go from start, or continue from breakpoint  
fr address#times - display one or more real (32 bit) floating  
point numbers  
fl address#times - display one or more long real (64 bit)  
floating point numbers  
fx address#times - display one or more extended real (80 bit)  
floating point numbers  
da address#times - disassemble one or more instructions  
db address#bytes - display one or more bytes  
ds address#shrts - display one or more shorts  
di address#words - display one or more words  
dd address#times - display one or more sets of double words  
dt address#times - display one or more sets of triple words  
dq address#times - display one or more sets of quad words  
re  
- dump contents of registers  
di reg  
mo reg  
- display the contents of the register 'reg'  
- modify a register. Reg can NOT be fp0-fp3,  
mo address#words - modify one or more words in memory  
mb address - modify a byte in memory (doesn't read byte first)  
fi address address data - fill memory with data value  
tr option on/off - turn on or off one of the following trace options  
branch, call, return or supervisor call  
br [address]  
bd [address]  
de address  
- set instruction break. If no address is given,  
all current breakpoints are displayed  
- set data breakpoint. If no address is given,  
all current breakpoints are displayed  
- delete specified instruction or data breakpoint  
- repeat previous command  
test-clock - test Real Time Clock  
test-dram - test DRAM  
test-dc <bank> <chip> - test DRAM chip # <chip> in bank <bank>  
test-ethernet  
test-flash  
test-fc <chip>  
test-serial  
test-sram  
- test Ethernet  
- test Flash  
- test Flash chip <chip>  
- test Serial Port  
- test SRAM  
test-timer  
test-all  
- test Timer  
- test all devices, except Flash and SRAM  
- test all devices  
test-manufact  
B-3  
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SCP Diagnostics  
B.1.2 Running the Hardware Tests  
This last portion from the displayed list is the group of hardware tests that the  
user can run on the SCP:  
test-clock  
test-dram  
- test Real Time Clock  
- test DRAM  
test-dc <bank> <chip> - test DRAM chip # <chip> in bank <bank>  
test-ethernet  
test-flash  
test-fc <chip>  
test-serial  
test-sram  
- test Ethernet  
- test Flash  
- test Flash chip <chip>  
- test Serial Port  
- test SRAM  
test-timer  
test-all  
- test Timer  
- test all devices, except Flash and SRAM  
- test all devices  
test-manufact  
Type the test command at the prompt to run the individual test. A test that  
completes correctly will be reported as “OK” on both the terminal connected  
to the serial port and on the display LED on the front panel of the SCP. A test  
that is not successful will be reported as “failure” on the terminal connected  
to the serial port and as “BAD” on the display LED. If any of the tests fail,  
contact Cabletron Systems’ Technical Support.  
The following subsections depict an example of how to perform each test  
through the serial port and the SCP’s confirmation message to the terminal  
connected to the serial port that the test was successful. The user input is in  
a va nt g a rd e font and the SCP’s response is shown in courierfont.  
B.1.2.1  
Clock Test  
This test checks the real time clock to verify that it is ticking correctly. It takes  
about two seconds to run.  
=>te st-c lo c k  
Clock: OK  
B.1.2.2  
DRAM Test  
This test checks the DRAM’s functionality. It takes about two seconds to run.  
=>te st-d ra m  
DRAM: OK  
B-4  
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SCP Diagnostics  
B.1.2.3  
DRAM Chip Test  
This test checks the functionality of a DRAM chip. It takes about two seconds  
to run.  
=>test-dc a  
DRAM chip: OK  
B.1.2.4  
Ethernet Test  
This test checks the functionality of the Ethernet chip. It takes about two sec-  
onds to run.  
=>te st-e the rne t  
Ethernet: OK  
B.1.2.5  
FLASH Test  
This test checks the functionality of each FLASH chip. It takes about five min-  
utes to run.  
NOTE: It is recommended that you back up your  
CDB before running this test. The chips are  
saved before testing each one and then  
restored. However, if a power failure would  
occur or if the switch were rebooted during  
the test, some of the data may not be restored  
properly.  
=>te st-fla sh  
Flash Test  
Save Chip 0  
Erase Chip  
Pattern 0  
Erase Chip  
Pattern 1  
Erase Chip  
Pattern 2  
Erase Chip  
Pattern 3  
.
B-5  
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SCP Diagnostics  
.
.
Erase Chip  
Pattern 1  
Erase Chip  
Pattern 2  
Erase Chip  
Pattern 3  
Flash: OK  
B.1.2.6  
FLASH Chip Test  
This test checks the functionality of an individual FLASH chip. It takes about  
one and a half minutes to run.  
NOTE: It is recommended that you back up your  
CDB before running this test. The chip is  
saved before it is tested and then restored.  
However, if a power failure would occur or if  
the switch were rebooted during the test,  
some of the data may not be restored  
properly.  
=>te st-fc 1  
Save Chip 1  
Erase Chip  
Pattern 0  
Erase Chip  
Pattern 1  
Erase Chip  
Pattern 2  
Erase Chip  
Pattern 3  
Flash: OK  
B-6  
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SCP Diagnostics  
B.1.2.7  
Serial Port Test  
This test checks the serial port’s functionality. It takes about two seconds to  
run.  
=>te st-se ria l  
Serial: OK  
B.1.2.8  
SRAM Test  
This test checks the SRAM’s functionality. It takes about two seconds to run.  
NOTE: It is recommended that you back up your  
CDB before running this test. The SRAM is  
saved before testing and then restored.  
However, if a power failure would occur or if  
the switch were rebooted during the test,  
some of the data may not be restored  
properly.  
=>te st-sra m  
SRAM: OK  
B.1.2.9  
Timer Test  
This test checks to see if the timer is counting correctly. It takes about two sec-  
onds to run.  
=>te st-tim e r  
Timer: OK  
B.1.2.10 Hardware Test  
This series of tests checks the functionality of all of the hardware devices in  
the SCP, except the FLASH chips and SRAM. It takes about fifteen seconds to  
run.  
=>te st-a ll  
Clock: OK  
DRAM: OK  
Ethernet: OK  
Timer: OK  
}Serial: OK  
B-7  
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SCP Diagnostics  
B.1.2.11 Complete Hardware Test  
This series of tests checks the functionality of all of the hardware devices, in  
the SCP including the FLASH chips and SRAM. It takes about six minutes to  
run.  
NOTE: It is recommended that you back up your  
CDB before running this test. The chips are  
saved before testing each one and then  
restored. However, if a power failure would  
occur or if the switch were rebooted during  
the test, some of the data may not be restored  
properly.  
=>te st-ma nufa c t  
Clock: OK  
DRAM: OK  
Ethernet: OK  
Timer: OK  
}Serial: OK  
SRAM: OK  
Flash Test  
.
.
.
Erase Chip  
Pattern 1  
Erase Chip  
Pattern 2  
Erase Chip  
Pattern 3  
Flash: OK  
B-8  
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APPENDIX C Hardware Specifications  
This appendix provides information about the hardware for all of Cabletron  
Systems’ ATM products. Information provided includes fiber-optic and UTP  
cabling specifications; pinout specifications; and hardware and general oper-  
ating specifications. The products described in this appendix include the fol-  
lowing:  
• Cabletron ATM Switches  
ATM Network Modules  
• ATM Adapters  
C.1 Cabletron ATM Switches  
Cabletron Systems offers a complete line of ATM switches that provide scal-  
able ATM connectivity ranging from desktop-to-desktop connections to those  
spanning wide area networks. Cabletron ATM switches provide high-perfor-  
mance, high-reliability ATM connectivity for LAN workgroup and desktop  
applications, LAN backbone applications, and LAN/WAN internetworking  
applications. Together with the Cabletron series of ATM LAN and WAN net-  
work nodules, these switches meet the networking demands of today’s dis-  
tributed, time-critical applications.  
All of the Cabletron ATM switches deliver high-performance switching  
capacity and speed for ATM applications. A non-blocking switching capacity  
of 2.5 Gbps is continually available on the SFCS-200WG, or the SFCS-200BX.  
Each switch provides up to 4 ports of connectivity, each running at speeds up  
to 622 Mbps; or up to 16 ports, each running at speeds up to 155 Mbps; or up  
to 24 ports, each running at speeds up to 100 Mbps. TheASX-1000 provides 10  
Gbps of switching capacity for up to 16 ports of connectivity, each running at  
speeds up to 622 Mbps; or up to 64 ports, each running at speeds up to 155  
Mbps; or up to 96 ports, each running at speeds up to 100 Mbps.  
This section provides an overview of the Cabletron Systems family of ATM  
switches. It details operating, environmental, and general specifications, as  
well as the hardware requirements necessary to use the different switches.  
C-1  
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Hardware Specifications  
C.1.1 SFCS-200WG  
The SFCS-200WG ATM switch has the following specifications:  
Features  
Specification  
2.5 Gbps, non-blocking  
Switching Fabric  
Number of Ports  
Traffic Policing  
12 to 24 ports  
UPC, dual leaky bucket support  
< 10 microseconds  
Switch Transit Delay  
Connection Setup Time  
Control Processor  
Maximum Port Speed  
Ethernet Interface  
Serial Interface  
< 10 milliseconds, 100 calls/second  
i960 CA switch control processor  
622 Mbps (OC-12/STM-4c)  
Standard RJ-45 connector  
DB-9 female connector  
Power (nominal)  
90 - 270VAC @ 47 - 63Hz, 2.2 amps maximum  
(198 - 594 watts)  
Dimensions  
Weight  
H: 4.75" (12.1 cm), W: 17.5" (44.5 cm), D: 18" (45.7 cm)  
27.6 lbs (12.5 kg) maximum  
General Specifications  
Standards Compliance  
Emissions  
ITU I.361 ATM Layer, ATM Forum UNI v3.0  
FCC Part 15, Class A; CISPR 22, Class A; VCCI  
Class 1  
Safety  
US: UL 1950; Canada: CSA 22.2; No. 950-M89;  
Europe: EN 60950  
Operating Temperature  
Operating Humidity  
Storage Temperature  
Storage Humidity  
5˚C to 40˚C up to 10,000 ft  
10 - 90% relative humidity, non-condensing  
-40˚C to 70˚C up to 30,000 ft  
5 to 95% relative humidity, non-condensing  
C-2  
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Hardware Specifications  
C.1.2 SFCS-200BX  
The SFCS-200BX ATM switch has the following specifications:  
Features  
Specification  
2.5 Gbps, non-blocking  
Switching Fabric  
Number of Ports  
2 to 24 ports  
Traffic Policing  
UPC, dual leaky bucket support  
< 10 microseconds  
Switch Transit Delay  
Connection Setup Time  
Control Processor  
Maximum Port Speed  
Ethernet Interface  
Serial Interface  
< 10 milliseconds, 100 calls/second  
i960 CF switch control processor  
622 Mbps (OC-12/STM-4c)  
Standard RJ-45 connector  
DB-9 female connector  
Power (nominal) - AC  
90 - 270VAC @ 47 - 63Hz, 2.2 amps maximum  
(198 - 594 watts)  
DC  
36 - 76 VDC, 10 amps maximum  
H: 4.75" (12.1 cm), W: 17.5" (44.5 cm), D: 18" (45.7 cm)  
43 lbs (19.5 kg) maximum  
Dimensions  
Weight  
General Specifications  
Standards Compliance  
Emissions  
ITU I.361 ATM Layer, ATM Forum UNI v3.0  
FCC Part 15, Class A; CISPR 22, Class A; VCCI  
Class 1  
Safety  
US: UL 1950; Canada: CSA 22.2; No. 950-M89;  
Europe: EN 60950  
Operating Temperature  
Operating Humidity  
Storage Temperature  
Storage Humidity  
5˚C to 40˚C up to 10,000 ft  
10 - 90% relative humidity, non-condensing  
-40˚C to 70˚C up to 30,000 ft  
5 to 95% relative humidity, non-condensing  
C-3  
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Hardware Specifications  
C.1.3 SFCS-1000  
The SFCS-1000 ATM switch has the following specifications:  
Features  
Specification  
10 Gbps, non-blocking  
Switching Fabric  
Number of Ports  
2 to 96 ports  
Traffic Policing  
UPC, dual leaky bucket support  
< 11 microseconds  
Switch Transit Delay  
Connection Setup Time  
Control Processor  
Maximum Port Speed  
Ethernet Interface  
Serial Interface  
< 10 milliseconds, 100 calls/second  
i960 CF (multiple) switch control processor  
622 Mbps (OC-12/STM-4c)  
Standard RJ-45 connector  
DB-9 female connector  
Power (nominal)  
(Model A)  
97 - 264VAC @ 47 - 63Hz, 12 amps maximum  
36 to 72VDC, 20 amps maximum  
100-120VAC @ 50 - 60Hz, 12 amps maximum  
200-240VAC @ 50 - 60Hz, 6.5 amps maximum  
H: 24.5" (62.2 cm), W: 19" (48.3 cm), D: 18" (45.7 cm)  
112 lbs (51 kg)  
Power (nominal)  
(Model B)  
Dimensions  
Weight  
General Specifications  
Standards Compliance  
Emissions  
ITU I.361 ATM Layer, ATM Forum UNI v3.0  
FCC Part 15, Class A; CISPR 22, Class A; VCCI  
Class 1  
Safety  
US: UL 1950; Canada: CSA 22.2; No. 950-M89;  
Europe: EN 60950  
Operating Temperature  
Operating Humidity  
Storage Temperature  
Storage Humidity  
5˚C to 40˚C up to 10,000 ft  
10 - 90% relative humidity, non-condensing  
-40˚C to 70˚C up to 30,000 ft  
5 to 95% relative humidity, non-condensing  
C-4  
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Hardware Specifications  
C.2 ATM Network Modules  
The LAN and WAN network modules are the physical ATM port interface  
cards that provide LAN/WAN connectivity to other ATM switches, ATM-  
compatible desktop computers and servers, hubs, routers, multiplexers, and  
carrier ATM services. Currently, network modules are available to provide  
ATM connections ranging from 1.5 Mbps to 622 Mbps over both fiber-optic  
and copper media.  
This section details the technical specifications for each of the network mod-  
ules. All network modules are hot-swappable, reducing network and mainte-  
nance downtime. For complete information about hot-swapping network  
modules, please refer to Chapter 3, Hardware Maintenance Procedures, in  
this manual.  
C.2.1 100 Mbps TAXI Module  
The following specifications apply to network modules NM-6/100SCC and  
NM-6/100STC:  
Description  
Port Capacity  
Specification  
Six TAXI ports per module  
100 Mbps  
Data Rate  
Output Buffer  
Media  
13,312 cell capacity  
Multimode fiber  
~2 km  
Max. Line Length  
Connectors  
Line Encoding  
Loopbacks  
Power  
ST or dual SC  
4B/5B  
Transmit and receive loopbacks  
-14 to -20 dBm transmit, -14 to -30 dBm receive,  
0 to 10 dB path attenuation  
Core Diameter  
Fiber Diameter  
Wavelength  
Statistics  
62.5 µm  
125 µm  
1310 nm  
TAXI statistics including Header Check  
Sequence (HCS) errors  
Compliance  
ATM Forum TAXI UNI v3.1, ITU-T I.432, ANSI  
X3T9.5, ISO DIS9314-3  
C-5  
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Hardware Specifications  
C.2.2 155 Mbps OC-3c/STM-1 MM Module  
The following specifications apply to network modules NM-4/155MMSCC  
and NM-4/155MMSTC:  
Description  
Port Capacity  
Specification  
Four SONET/SDH ports per module  
155.52 Mbps  
Data Rate  
Output Buffer  
Media  
13,312 cell capacity  
Multimode fiber  
Max. Line Length  
Connectors  
Line Encoding  
Framing  
~2 km  
ST or dual SC  
Non-Return to Zero (NRZ)  
STS-3c/STM-1  
Clock Accuracy  
Timing  
±20 ppm  
Internal timing or per port network timing  
Transmit and receive loopbacks  
Loopbacks  
Power  
-14 to -20 dBm transmit, -14 to -30 dBm receive,  
0 to 10 dB path attenuation  
Core Diameter  
Fiber Diameter  
Wavelength  
62.5 µm  
125 µm  
1310 nm  
Statistics/Alarms  
SONET/SDH statistics include Loss of Signal  
(LOS), Loss of Frame (LOF), Loss of Pointer  
(LOP), Far End Block Errors (FEBE), Alarm  
Indication Signal (AIS), Far End Receive Fail-  
ure (FERF), Yellow Alarm, Bit Interleaved Par-  
ity errors (Line BIP-24, Section BIP-8, Path  
BIP-8), Header Check Sequence (HCS) errors  
Compliance  
ATM Forum STS-3c UNI v3.1, ITU-T I.432,  
ANSI T1E1.2/93-020, T1S1/92-185, ITU-T  
G.957, Bellcore TR-NWT-000253  
C-6  
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Hardware Specifications  
C.2.3 155 Mbps STS-3c/STM-1 UTP Module  
The following specifications apply to network modules NM-4/155UTP5EC  
and NM-4/155UTP5C:  
Description  
Port Capacity  
Specification  
Four SONET/SDH ports per module  
155.52 Mbps  
Data Rate  
Output Buffer  
Media  
2,560 or 13,312 cell capacity  
Category 5 Unshielded Twisted Pair (UTP)  
100 m  
Max. Line Length  
Connectors  
Line Encoding  
Framing  
RJ-45  
Non-Return to Zero (NRZ)  
STS-3c/STM-1  
Clock Accuracy  
Timing  
±20 ppm  
Internal timing or per port network timing  
Transmit and receive loopbacks  
Loopbacks  
Statistics/Alarms  
SONET/SDH statistics include Loss of Signal  
(LOS), Loss of Frame (LOF), Loss of Pointer  
(LOP), Far End Block Errors (FEBE), Alarm  
Indication Signal (AIS), Far End Receive Fail-  
ure (FERF), Yellow Alarm, Bit Interleaved Par-  
ity errors (Line BIP-24, Section BIP-8, Path BIP-  
8), Header Check Sequence (HCS) errors  
Compliance  
ATM Forum STS-3c UNI v3.1, ITU-T I.432,  
ANSI T1E1.2/93-020, T1S1/92-185, ATM  
Forum AF-PHY-0015.000  
C-7  
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Hardware Specifications  
C.2.3.1  
155 Mbps UTP Pinout Specifications  
155 Mbps UTP network modules have a standard RJ-45 female connector and  
use RJ-45 network equipment pinouts as illustrated in the table below:  
Signal  
Mnemonic  
Pin Number  
Signal Name  
1
2
3
4
5
6
7
8
RX+  
RX-  
Receive Data +  
Receive Data -  
Not Used  
Not Used  
Not Used  
Not Used  
TX+  
TX-  
Transmit Data +  
Transmit Data -  
C.2.3.2  
Connecting Switches with 155 Mbps UTP Network Modules  
When connecting switches using 155 Mbps UTP network modules, you need  
to use a category 5 UTP crossover cable with the following specifications:  
• Pin 1 to pin 7 in both directions.  
• Pin 2 to pin 8 in both directions.  
155 Mbps UTP  
155 Mbps UTP  
Pin  
Pin  
RX+  
RX-  
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
RX+  
RX-  
TX+  
TX-  
TX+  
TX-  
C-8  
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Hardware Specifications  
C.2.4 622 Mbps OC-12c/STM-4c MM Module  
The following specifications apply to network module NM-1/622MMSCC  
and NM-1/622MMSTC:  
Description  
Port Capacity  
Specification  
One SONET/SDH port per module  
622.08 Mbps  
Data Rate  
Output Buffer  
Media  
13,312 cell capacity  
Multimode fiber  
500 m  
Max. Line Length  
Connectors  
Line encoding  
Framing  
SC or ST  
Non-Return to Zero (NRZ)  
STS-12c/STM-4c  
±20 ppm  
Clock Accuracy  
Timing  
Primary and secondary 8kHz reference from  
internal (default) or network  
Loopbacks  
Power  
Transmit and receive loopbacks  
-20 to -14 dBm transmit power, -26 to -14 dBm  
receive sensitivity, 0 to 6 dB path attenuation  
for 62.5 µm fiber, 0 to 2 dB path attenuation for  
50 µm fiber  
Core Diameter  
Fiber Diameter  
Wavelength  
62.5 µm, 50 µm  
125 µm  
1270 - 1380 nm  
Statistics/Alarms  
SONET/SDH statistics include Loss of Signal  
(LOS), Loss of Frame (LOF), Loss of Pointer  
(LOP), Far End Block Errors (FEBE), Alarm  
Indication Signal (AIS), Far End Receive Fail-  
ure (FERF), Yellow Alarm, Bit Interleaved Par-  
ity (Line BIP-24, Section BIP-8, Path BIP-8)  
errors, Header Check Sequence (HCS) errors,  
cells received (RxCells), cells transmitted  
(TxCells)  
Compliance  
ATM Forum AF-PHY-0046.000, ITU-T I.432,  
ANSI T1E1.2/93-020, T1S1/92-185, ITU-T  
G.957, Bellcore TR-NWT-000253  
C-9  
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Hardware Specifications  
C.2.5 25 Mbps TP25 Module  
The following specifications apply to network module NM-6/25UTPEC:  
Description  
Port Capacity  
Specification  
Six TP25 ports per module  
Data Rate  
25.6 Mbps  
Output Buffer  
Media  
2,560 cell capacity  
Cat. 3, 4, or 5 Unshielded Twisted Pair (UTP)  
Max. Line Length  
Connector  
100 m  
RJ-45  
Line Encoding  
Clock Accuracy  
Timing  
4B/5B  
±100 ppm  
Primary and secondary 8kHz reference from  
internal (default) or network  
Loopbacks  
Receive loopback  
100 ohms  
Impedance  
Statistics/Alarms  
Header Check Sequence (HCS) errors, cells  
received (RxCells), cells transmitted (TxCells),  
and symbol errors  
Compliance  
ATM Forum 25.6 Mbps specification AF-PHY-  
0040.000  
C-10  
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Hardware Specifications  
C.2.5.1  
Connecting Switches with TP25 Network Modules  
The TP25 network modules have a standard RJ45 connector that uses pins 1,  
2, 7 and 8. When connecting switches using TP25 network modules, you will  
need to use a UTP crossover cable with the following specification:  
• Pin 1 to pin 7 in both directions.  
• Pin 2 to pin 8 in both directions.  
TP25  
Pin  
Pin TP25  
RX+  
RX-  
1
2
3
4
5
6
7
8
1
RX+  
RX-  
2
3
4
5
6
7
8
TX+  
TX-  
TX+  
TX-  
C.2.5.2  
Connecting Switches with Token Ring Pinouts to Cabletron Switches  
Although Cabletron Systems’ Switches use the 1, 2, 7 and 8 pin assignment  
recommended by the ATM Forum, some switches use pins 3, 4, 5 and 6. Con-  
necting one of these switches to a Cabletron Switch would require the connec-  
tions to be mapped as follows:  
• Pin 3 to pin 7 in both directions.  
• Pin 4 to pin 1 in both directions.  
• Pin 5 to pin 2 in both directions.  
• Pin 6 to pin 8 in both directions.  
Alternative switch  
Pin  
Pin  
Cabletron Switch  
RX+  
RX-  
1
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
RX+  
TX+  
TX-  
RX-  
TX+  
TX-  
C-11  
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Hardware Specifications  
C.2.5.3  
Connecting Adapters with Token Ring Pinouts to Cabletron Switches  
Like switches, some adapters use different pin assignments than those men-  
tioned before. Connecting one of these adapters to a Cabletron Switch would  
require the connections to be mapped as follows:  
• Pin 3 to pin 1 in both directions.  
• Pin 4 to pin 7 in both directions.  
• Pin 5 to pin 8 in both directions.  
• Pin 6 to pin 2 in both directions.  
Alternative  
adapter  
Pin  
Pin  
Cabletron Switch  
RX+  
RX-  
1
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
TX+  
RX+  
RX-  
TX-  
TX+  
TX-  
NOTE: The cable used in the connections shown in  
sections 2 and 3 above must be either a UTP-3  
or UTP-5 bidirectional crossover cable, with  
8-pin male RJ-45 modular connectors at each  
end.  
C-12  
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Hardware Specifications  
C.2.6 34 Mbps E3 Module  
The following specifications apply to network modules NM-2/E3C and  
NM-4/E3C:  
Description  
Port Capacity  
Specification  
Two or four E3 ports per module  
Data Rate  
34.368 Mbps  
13,312 cell capacity  
Coaxial  
Output Buffer  
Media  
Max. Line Length  
Connector  
~450 ft  
BNC  
Line Encoding  
Framing  
HDB3  
Per ITU-T G.832 or G.751  
±20 ppm  
Clock Accuracy  
Timing  
Primary and secondary 8kHz reference from  
internal (default) or network  
Loopbacks  
Transmit and receive loopbacks  
75 ohms nominal  
Impedance  
Statistics/Alarms  
Line code violations (LCV), framing bit errors  
(FER), P-bit and C-bit errors, header check  
sequence (HCS) errors, cells received (RxCells),  
cells transmitted (TxCells), signal/clock detec-  
tion, code violations, bit errors, parity errors,  
and AIS indication  
Compliance  
ATM Forum AF-PHY-94-0406 R5, ITU-T G.703,  
G.751, G.832, G.804  
C-13  
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Hardware Specifications  
C.2.7 45 Mbps DS3 Module  
The following specifications apply to network modules NM-2/DS3C and  
NM-4/DS3C:  
Description  
Port Capacity  
Specification  
Two or four DS3 ports per module  
Data Rate  
44.736 Mbps  
Output Buffer  
Media  
13,312 cell capacity  
Coaxial  
Max. Line Length  
Connector  
~450 ft  
BNC  
Line Encoding  
Framing  
B3ZS  
C-bit parity or clear channel  
Clock Accuracy  
Timing  
±20 ppm  
Primary and secondary 8kHz reference from  
internal (default) or network  
Loopbacks  
Transmit and receive loopbacks  
75 ohms nominal  
Impedance  
Statistics/Alarms  
Line code violations (LCV), framing bit errors  
(FER), P-bit and C-bit errors, header check  
sequence (HCS) errors, cells received (RxCells),  
cells transmitted (TxCells), signal/clock detec-  
tion, and AIS indication  
Compliance  
ATM Forum DS3 UNI v3.1, ANSI/Bellcore  
T1.102, T1.107, TR-TSY-000009  
C-14  
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Hardware Specifications  
C.2.8 155 Mbps OC-3c/STM-1 SM Module  
The following specifications apply to network modules NM-4/155SMSRC  
and NM-4/155SMLRC:  
Description  
Port Capacity  
Specification  
Four SONET/SDH ports per module  
155.52 Mbps  
Data Rate  
Output Buffer  
Media  
13,312 cell capacity  
Short or long reach single mode fiber  
~2 km (short reach); ~40 km (long reach)  
FC  
Max. Line Length  
Connectors  
Line Encoding  
Framing  
Non-Return to Zero (NRZ)  
STS-3c/STM-1  
Clock Accuracy  
Timing  
±20 ppm  
Primary and secondary 8kHz reference from  
internal (default) or network  
Loopbacks  
Transmit and receive loopbacks  
Power - Short Reach  
-8 to -15 dBm transmit power, -8 to -23 dBm  
receive sensitivity, 0 to 8 dB path attenuation  
Power - Long Reach  
0 to -5 dBm transmit power, -10 to -34 dBm  
receive sensitivity, 10 to 29 dB path attenuation  
Core Diameter  
Fiber Diameter  
Wavelength  
10 µm  
125 µm  
1310 nm  
Statistics/Alarms  
SONET/SDH statistics include Loss of Signal  
(LOS), Loss of Frame (LOF), Loss of Pointer  
(LOP), Far End Block Errors (FEBE), Alarm  
Indication Signal (AIS), Far End Receive Fail-  
ure (FERF), Yellow Alarm, Bit Interleaved Par-  
ity errors (Line BIP-24, Section BIP-8, Path  
BIP-8), Header Check Sequence errors (HCS)  
Compliance  
ATM Forum STS-3c UNI v3.1, ITU-T I.432,  
ANSI T1E1.2/93-020, T1S1/92-185, ITU-T  
G.957, Bellcore TR-NWT-000253  
C-15  
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Hardware Specifications  
C.2.9 155 Mbps OC-3c/STM-1 3MM/1SM Module  
The 155 Mbps OC-3c/STM-1 3MM/1SM network module contains one  
SONET/SDH single mode port (port 4) and three SONET/SDH multimode  
ports (ports 1, 2, and 3) per module.  
The following specifications apply to port 4 on network modules NM-  
4/155SR3SCC and NM-4/155LR3SCC:  
Description  
Data Rate  
Specification  
155.52 Mbps  
Output Buffer  
Media  
13,312 cell capacity  
Short or long reach single mode fiber  
~2 km (short reach); ~40km (long reach)  
FC  
Max. Line Length  
Connectors  
Line Encoding  
Framing  
Non-Return to Zero (NRZ)  
STS-3c/STM-1  
Clock Accuracy  
Timing  
±20 ppm  
Primary and secondary 8kHz reference from  
internal (default) or network  
Loopbacks  
Transmit and receive loopbacks  
Power - Short Reach  
-8 to -15 dBm transmit power, -8 to -23 dBm  
receive sensitivity, 0 to 8 dB path attenuation  
Power - Long Reach  
0 to -5 dBm transmit power, -10 to -34 dBm  
receive sensitivity, 10 to 29 dBm path attenuation  
Core Diameter  
Fiber Diameter  
Wavelength  
10 µm  
125 µm  
1310 nm  
Statistics/Alarms  
SONET/SDH statistics include Loss of Signal  
(LOS), Loss of Frame (LOF), Loss of Pointer  
(LOP), Far End Block Errors (FEBE), Alarm  
Indication Signal (AIS), Far End Receive Fail-  
ure (FERF), Yellow Alarm, Bit Interleaved Par-  
ity errors (Line BIP-24, Section BIP-8, Path  
BIP-8), Header Check Sequence errors (HCS)  
Compliance  
ATM Forum STS-3c UNI v3.1, ITU-T I.432,  
ANSI T1E1.2/93-020, T1S1/92-185, ITU-T  
G.957, Bellcore TR-NWT-000253  
C-16  
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Hardware Specifications  
The following specifications apply to ports 1, 2, and 3 on network modules  
NM-4/155SR3SCC and NM-4/155LR3SCC:  
Description  
Data Rate  
Specification  
155.52 Mbps  
Output Buffer  
Media  
13,312 cell capacity  
Multimode fiber  
~2 km  
Max. Line Length  
Connectors  
Line Encoding  
Framing  
SC  
Non-Return to Zero (NRZ)  
STS-3c/STM-1  
±20 ppm  
Clock Accuracy  
Timing  
Primary and secondary 8kHz reference from  
internal (default) or network  
Loopbacks  
Power  
Transmit and receive loopbacks  
-14 to -20 dBm transmit power, -14 to -30 dBm  
receive sensitivity, 0 to 10 dB path attenuation  
Core Diameter  
Fiber Diameter  
Wavelength  
62.5 µm  
125 µm  
1310 nm  
Statistics/Alarms  
SONET/SDH statistics include Loss of Signal  
(LOS), Loss of Frame (LOF), Loss of Pointer  
(LOP), Far End Block Errors (FEBE), Alarm  
Indication Signal (AIS), Far End Receive Fail-  
ure (FERF), Yellow Alarm, Bit Interleaved Par-  
ity errors (Line BIP-24, Section BIP-8, Path  
BIP-8), Header Check Sequence errors (HCS)  
Compliance  
ATM Forum STS-3c UNI v3.1, ITU-T I.432,  
ANSI T1E1.2/93-020, T1S1/92-185, ITU-T  
G.957, Bellcore TR-NWT-000253  
C-17  
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Hardware Specifications  
C.2.10 622 Mbps OC-12c/STM-4c SM Module  
The following specifications apply to network module NM-1/622SMIRC:  
Description  
Port Capacity  
Specification  
One SONET/SDH port per module  
622.08 Mbps  
Data Rate  
Output Buffer  
Media  
13,312 cell capacity  
Single mode fiber  
~14 km  
Max. Line Length  
Connectors  
Line Encoding  
Framing  
FC  
Non-Return to Zero (NRZ)  
STS-12c/STM-4c  
±20 ppm  
Clock Accuracy  
Timing  
Primary and secondary 8kHz reference from  
internal (default) or network  
Loopbacks  
Power  
Transmit and receive loopbacks  
-8 to -15 dBm transmit power, -8 to -28 dBm  
receive sensitivity, 0 to 13 dB path attenuation  
Core Diameter  
Fiber Diameter  
Wavelength  
10 µm  
125 µm  
1310 nm  
Statistics/Alarms  
SONET/SDH statistics include Loss of Signal  
(LOS), Loss of Frame (LOF), Loss of Pointer  
(LOP), Far End Block Errors (FEBE), Alarm  
Indication Signal (AIS), Far End Receive Fail-  
ure (FERF), Yellow Alarm, Bit Interleaved Par-  
ity errors (Line BIP-24, Section BIP-8, Path  
BIP-8), Header Check Sequence errors (HCS),  
cells received (RxCells), cells transmitted  
(TxCells)  
Compliance  
ATM Forum STS-12c UNI v3.1, ITU-T I.432,  
ANSI T1E1.2/93-020, T1S1/92-185, ITU-T  
G.957, Bellcore TR-NWT-000253  
C-18  
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Hardware Specifications  
C.3 ATM Adapters  
The family of ATM adapters provides a flexible ATM interface for the commu-  
nications needs of today’s high-speed workstations and personal computers.  
C.3.1 Adapter Cabling Specifications  
C.3.1.1  
Fiber-Optic Cable Specifications  
The table below lists the recommended cable specifications for all ATM adapt-  
ers that use fiber-optic cabling to ensure optimal adapter and switch perfor-  
mance:  
Description  
Core Diameter  
Specification for Multimode Products  
62.5 µm  
Fiber Diameter  
Wavelength  
125 µm  
1310 nm  
Loss Characteristic  
Connector Style  
Power Budget  
~0.5 dB/km  
SC or ST  
11 dB *  
Approximate Distance  
Transmit Power  
Receive Power  
2 km  
-19 dBm (minimum)  
-30 dBm (minimum)  
* If a 50 µm core fiber is used, the power budget is derated by 4 dB.  
C-19  
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Hardware Specifications  
C.3.1.2  
UTP Cable Specifications  
The table below lists the recommended cable specifications for all Cabletron  
ATM adapters that use UTP cabling to ensure optimal adapter and switch  
performance.  
Description  
Value  
AWG  
24  
Impedance ()  
100 ±15%  
25 dB @ 16 mHz  
Attenuation (dB/1000 ft Max)  
52 dB @ 62.5 mHz  
67 dB @ 100 mHz  
100 m *  
Maximum Run  
Connector Style  
RJ-45  
* Within the 100 meter run, a maximum of two connections are permissible.  
C.3.1.3 UTP Pinouts  
All ATM Adapters that can be connected using copper cabling use a standard  
RJ-45 connector with the following pinouts:  
Number  
Transmit/Receive  
Transmit (+)  
Transmit (-)  
not used  
1
2
3
4
5
6
7
8
not used  
not used  
not used  
Receive (+)  
Receive (-)  
C-20  
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Hardware Specifications  
C.3.2 ESA-200PC Technical Specifications  
The ESA-200PC ATM Adapter provides ATM connectivity to EISA-based PCs  
and servers, and has the following specifications:  
Hardware  
Architecture  
AAL Support  
On-board 25 Mhz i960 RISC processor  
Special-purpose hardware for AAL5 and AAL3/4, HEC, and CRC  
calculations  
UNI  
100 Mbps TAXI (4B/5B encoding);  
155Mbps OC-3/SONET STS-3c/SDH STM-1  
Form Factor  
Compliance  
Single-slot EISA bus, half-card  
ATM cell processing per ANSI T1S1.5/92-002R3, ITU I.361, and  
ATM Forum v3.0 UNI specification  
Cabling  
Duplex 62.5/125 µm multimode fiber (2 km max. run, 10 dB loss);  
2-pair 100 ohm CAT 5, or CAT 5 screened, UTP (100 meters max.)  
Connectors  
ST and SC Types for multimode fiber; RJ-45 for CAT 5 UTP copper  
Software  
Transparent standard protocol interface NDIS 3.0, ODI Server  
SPANS Switched Virtual Circuits (SVCs) signaling protocol  
Permanent Virtual Circuits (PVCs)  
Supports up to 1024 Virtual Circuit Identifiers (VCIs)  
Support for UNI 3.0 signalling  
Support for LAN Emulation Clients  
General  
Dimensions  
H: 0.6" x W: 5.0" x D: 9.4" (1.5 cm x 12.7 cm x 23.8 cm)  
Weight  
8.3 oz (235 g)  
Power Requirements  
Operating Temperature  
Operating Humidity  
Compliance  
2 amps (maximum) @ +5V  
32˚F to 104˚F (0˚C to 40˚C)  
20% to 80% non-condensing @ 40˚C  
FCC Part 15, Class A Verification and UL 1950  
C-21  
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Hardware Specifications  
C.3.3 PCA-200PC Technical Specifications  
The PCA-200PC ATM Adapter provides ATM connectivity to PCI-based PCs  
and servers, and has the following specifications:  
Hardware  
Architecture  
On-board 25 Mhz i960 RISC processor  
AAL Support  
Special-purpose hardware for AAL5 and AAL3/4, HEC, and CRC  
calculations  
UNI  
100 Mbps TAXI (4B/5B encoding);  
155Mbps OC-3/SONET STS-3c/SDH STM-1  
Form Factor  
Compliance  
Single-slot PCI bus, half-card  
ATM cell processing per ANSI T1S1.5/92-002R3, ITU I.361, and  
ATM Forum UNI v3.0 specification  
Cabling  
Duplex 62.5/125 µm multimode fiber (2 km max. run, 10 dB loss);  
2-pair 100 ohm CAT 5, or CAT 5 screened, UTP (100 meters max.)  
Connectors  
ST and SC Types for multimode fiber; RJ-45 for CAT 5 UTP copper  
Software  
Transparent standard protocol interface NDIS 3.0, ODI Server  
SPANS Switched Virtual Circuits (SVCs) signaling protocol  
Permanent Virtual Circuits (PVCs)  
Supports up to 1024 Virtual Circuit Identifiers (VCIs)  
Support for UNI 3.0 signalling  
Support for LAN Emulation Clients  
General  
Dimensions  
H: 0.5" x W: 3.3" x D: 5.8" (1.3 cm x 8.4 cm x 14.7 cm)  
Weight  
6 oz (170 g)  
Power Requirements  
Operating Temperature  
Operating Humidity  
Compliance  
2 amps (maximum) @ +5V  
32˚F to 104˚F (0˚C to 40˚C)  
20% to 80% non-condensing @ 40˚C  
FCC Part 15, Class A Verification and UL 1950  
C-22  
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Hardware Specifications  
C.3.4 PCA-200MAC Technical Specifications  
The PCA-200MAC ATM Adapter provides ATM connectivity to PCI-based  
Apple Power Macintoshes, and has the following specifications:  
Hardware  
Architecture  
AAL Support  
On-board 25 Mhz i960 RISC processor  
Special-purpose hardware for AAL5 and AAL3/4, HEC, and CRC  
calculations  
UNI  
100 Mbps TAXI (4B/5B encoding);  
155Mbps OC-3/SONET STS-3c/SDH STM-1  
Form Factor  
Compliance  
Single-slot PCI bus, half-card  
ATM cell processing per ANSI T1S1.5/92-002R3, ITU I.361, and  
ATM Forum UNI v3.0 specification  
Cabling  
Duplex 62.5/125 µm multimode fiber (2 km max. run, 10 dB loss);  
2-pair 100 ohm CAT 5, or CAT 5 screened, UTP (100 meters max.)  
Connectors  
ST and SC Types for multimode fiber; RJ-45 for CAT 5 UTP copper  
Software  
Supports up to 1024 Virtual Circuit Identifiers (VCIs)  
Support for UNI 3.0 signalling  
Support for LAN Emulation Clients  
General  
Dimensions  
H: 0.5" x W: 3.3" x D: 5.8" (1.3 cm x 8.4 cm x 14.7 cm)  
Weight  
6 oz (170 g)  
Power Requirements  
Operating Temperature  
Operating Humidity  
Compliance  
2 amps (maximum) @ +5V  
32˚F to 104˚F (0˚C to 40˚C)  
20% to 80% non-condensing @ 40˚C  
FCC Part 15, Class A Verification and UL 1950  
C-23  
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Hardware Specifications  
C.3.5 NBA-200 Technical Specifications  
The NBA-200 ATM Adapter provides ATM connectivity to 68040-based Mac-  
intosh workstations and servers with full-size NuBus slots, and has the fol-  
lowing specifications:  
Hardware  
Architecture  
On-board 25 mHz i960 cell processor with VMEbus master burst  
transfer capability  
AAL Support  
UNI  
Special purpose, on-board hardware for HEC, CRC, and AAL5 and  
AAL3/4 calculations  
100 Mbps TAXI (4B/5B encoding);  
155Mbps OC-3/SONET STS-3c/SDH STM-1  
Form Factor  
Compliance  
Single-slot NuBus (full-length)  
ATM cell processing per ANSI TSI 1.5/92-002R3, ITU I.361, ATM  
Forum v3.0 UNI specification, and ANSI IEEE NuBus Standard  
1196-1987  
Cabling  
Duplex 62.5/125 µm multimode fiber (2,000 meters maximum)  
Connectors  
ST and SC for multimode fiber; RJ-45 for CAT 5 UTP copper  
Software  
Emulated EtherTalk Phase 2  
Enhanced-performance ATM Application Programming Interface (API) Library  
Transparent TCP/IP interface  
Multi-zone AppleTalk  
LAN Emulation Software 1.0  
Ethernet and AppleTalk support  
Control Panel GUI interface to user-level information on adapter status, ATM cell statistics, cell  
errors, and VCI/VPI information  
SNMP MIB access to adapter status, ATM cell statistics, cell errors, and VCI/VPI information  
General  
Dimensions  
0.6" H (1.5 cm), 4.3" W (8.4 cm), 5.8" D (14.7 cm)  
9 oz. (255g)  
Weight  
Power Requirements  
Operating Temperature  
Operating Humidity  
Compliance  
2A max @ +5V  
32˚F to 104˚F (0˚C to 40˚C)  
20% to 80%, non-condensing @ 40˚C  
FCC Part 15, Class A Verification, and UL 1950  
C-24  
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Hardware Specifications  
C.3.6 GIA-200 Technical Specifications  
The GIA-200 ATM Adapter provides ATM connectivity to Silicon Graphics  
Indy and Indigo (R3K, R4K, and Challenge S supported) workstations, and  
has the following specifications:  
Hardware  
Architecture  
AAL Support  
On-board 25 mHz i960 cell processor  
Special purpose, on-board hardware for HEC, CRC, and AAL5 and  
3/4 calculations  
UNI  
100 and 140 Mbps TAXI (4B/5B encoding);  
155Mbps OC-3/SONET STS-3c/SDH STM-1  
Form Factor  
Compliance  
Single-slot GIO bus  
ATM cell processing per ANSI T1S1.5/92-002R3, ITU I.361, and  
ATM Forum v3.0 UNI specification  
Cabling  
Duplex 62.5/125 µm multimode fiber (2 km max. run, 10 dB loss);  
2-pair 100 ohm CAT 5, or CAT 5 screened, UTP (100 meters max.)  
Connectors  
Memory  
ST and SC Types for multimode fiber; RJ-45 for CAT 5 UTP copper  
256 kbytes on-board RAM  
DMA Support  
32-bit burst mode, bus master; “Fly-by,” scatter-gather DMA sup-  
port; Supports block transfers up to 16 words; Full 32-bit datapath  
Software  
Transparent TCP/IP protocol interface  
Enhanced-performance ATM Application Programming Interface (API) Library  
SPANS Switched Virtual Circuit (SVC) signalling protocol  
Permanent Virtual Circuits (PVC), Supports up to 1024 Virtual Circuit Identifiers (VCIs)  
Application-controlled multicasting and broadcasting with recipient add and delete capabilities  
Support for UNI 3.0 signalling, ILMI, LAN Emulation Clients, Classical IP  
SNMP MIB access to adapter status, ATM cell statistics, cell errors, and VCI/VPI information  
General  
Dimensions  
0.6" H x 3.375" W x 6.352" D (1.5 cm x 8.57 cm x 16.1 cm)  
6 oz. (170 g)  
Weight  
Power Requirements  
Operating Temperature  
Operating Humidity  
Compliance  
2A (maximum) @ +5V  
32˚F to 104˚F (0˚C to 40˚C)  
20% to 80%, non-condensing @ 40˚C  
FCC Part 15, Class A Verification (UTP);  
FCC Class B Certification (fiber-optic connectors)  
C-25  
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Hardware Specifications  
C.3.7 HPA-200 Technical Specifications  
The HPA-200 ATM Adapter provides ATM connectivity to the following  
machines:  
HP9000/715,  
HP9000/720,  
HP9000/725,  
HP9000/730,  
HP9000/735, HP9000/750, HP9000/755, and has the following specifications:  
Hardware  
Architecture  
AAL Support  
On-board 25 mHz i960 cell processor  
Special purpose, on-board hardware for HEC, CRC, and AAL5 and  
3/4 calculations  
UNI  
100 and 140 Mbps TAXI (4B/5B encoding);  
155Mbps OC-3/SONET STS-3c/SDH STM-1  
Form Factor  
Compliance  
Single-slot EISA bus  
ATM cell processing per ANSI T1S1.5/92-002R3, ITU I.361, and ATM  
Forum v3.0 UNI specification  
Cabling  
Duplex 62.5/125 µm multimode fiber (2 km max. run, 10 dB loss);  
2-pair 100 ohm CAT 5, or CAT 5 screened, UTP (100 meters max.)  
Connectors  
Memory  
ST and SC Types for multimode fiber; RJ-45 for CAT 5 UTP copper  
256 kbytes on-board RAM  
DMA Support  
32-bit burst mode, bus master; “Fly-by,” scatter-gather DMA sup-  
port; Supports block transfers up to 16 words; Full 32-bit datapath  
Software  
Transparent TCP/IP protocol interface  
Enhanced-performance ATM Application Programming Interface (API) Library  
SPANS Switched Virtual Circuit (SVC) signalling protocol  
Permanent Virtual Circuits (PVC), Supports up to 1024 Virtual Circuit Identifiers (VCIs)  
Application-controlled multicasting and broadcasting with recipient add and delete capabilities  
Support for UNI 3.0 signalling, ILMI, LAN Emulation Clients, Classical IP  
SNMP MIB access to adapter status, ATM cell statistics, cell errors, and VCI/VPI information  
General  
Dimensions  
0.6" H x 5.5" W x 9.4" D (1.5 cm x 12.7 cm x 23.8 cm)  
8.3 oz. (235 g)  
Weight  
Power Requirements  
Operating Temperature  
Operating Humidity  
Compliance  
2A (maximum) @ +5V  
32˚F to 104˚F (0˚C to 40˚C)  
20% to 80%, non-condensing @ 40˚C  
FCC Part 15, Class A Verification (UTP);  
FCC Class B Certification (fiber-optic connectors)  
C-26  
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Hardware Specifications  
C.3.8 MCA-200 Technical Specifications  
The MCA-200 ATM Adapter provides ATM connectivity to MicroChannel-  
based workstations, PCs, and servers, and has the following specifications:  
Hardware  
Architecture  
AAL Support  
UNI  
On-board 25 mHz i960 cell processor with Micro Channel bus mas-  
ter burst transfer capability  
Special purpose, on-board hardware for HEC and AAL5 and 3/4  
calculations  
100 and 140 Mbps TAXI (4B/5B encoding);  
155Mbps SONET STS-3c/ SDH STM-1  
Form Factor  
Compliance  
Single-slot MicroChannel bus  
ATM cell processing per ANSI T1S1.5/92-002R3, ITU I.361, and  
ATM Forum v3.0 UNI specification  
Cabling  
Duplex 62.5/125 µm multimode fiber (2 km max. run, 10 dB loss);  
2-pair 100 ohm CAT 5 or CAT 5 screened UTP (100 meters max.)  
Connectors  
Memory  
ST and SC Types for multimode fiber; RJ-45 for CAT 5 UTP copper  
256 kbytes on-board RAM  
DMA Support  
32-bit burst mode, bus master; “Fly-by,” scatter-gather DMA sup-  
port; Supports block transfers up to 16 words; Full 32-bit datapath  
Software  
Transparent TCP/IP protocol interface  
Enhanced-performance ATM Application Programming Interface (API) Library  
SPANS Switched Virtual Circuit (SVC) signalling protocol  
Permanent Virtual Circuits (PVC), Supports up to 1024 Virtual Circuit Identifiers (VCIs)  
Application-controlled multicasting and broadcasting with recipient add and delete capabilities  
Support for UNI 3.0 signalling, ILMI, LAN Emulation Clients, Classical IP  
SNMP MIB access to adapter status, ATM cell statistics, cell errors, and VCI/VPI information  
General  
Dimensions  
0.6" H x 5.0" W x 9.4" D (1.5 cm x 12.7 cm x 23.8 cm)  
8.3 oz. (235 g)  
Weight  
Power Requirements  
Operating Temperature  
Operating Humidity  
Compliance  
2A (maximum) @ +5V  
32˚F to 104˚F (0˚C to 40˚C)  
20% to 80%, non-condensing @ 40˚C  
FCC Part 15, Class A Verification (UTP);  
FCC Class B Certification (fiber-optic connectors)  
C-27  
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Hardware Specifications  
C.3.9 SBA-200 Technical Specifications  
The SBA-200 ATM Adapter provides ATM connectivity to Sun Microsystems’  
SPARC 1, 1+, 2, 10, 20, 630 MP, 670 MP, 690 MP, SPARC 5, SPARCstation IPC,  
IPX, LX, SPARCclassic, SPARCserver 1000, and SPARCcenter 2000, and has  
the following specifications::  
Hardware  
Architecture  
On-board 25 mHz i960 cell processor  
AAL Support  
Special purpose, on-board hardware for HEC, CRC, and AAL5 and  
3/4 calculations  
UNI  
100 and 140 Mbps TAXI (4B/5B encoding);  
155Mbps OC-3/SONET STS-3c/SDH STM-1  
Form Factor  
Compliance  
Single-slot Sbus  
ATM cell processing per ANSI T1S1.5/92-002R3, ITU I.361, and  
ATM Forum v3.0 UNI specification  
Cabling  
Duplex 62.5/125 µm multimode fiber (2 km max. run, 10 dB loss);  
2-pair 100 ohm CAT 5 or CAT 5 screened UTP (100 meters max.)  
Connectors  
Memory  
ST and SC Types for multimode fiber; RJ-45 for CAT 5 UTP copper  
256 kbytes on-board RAM  
DMA Support  
32-bit burst mode, bus master; “Fly-by,” scatter-gather DMA sup-  
port; Supports block transfers up to 16 words; Full 32-bit datapath  
Software  
Transparent TCP/IP protocol interface  
Enhanced-performance ATM Application Programming Interface (API) Library  
SPANS Switched Virtual Circuit (SVC) signalling protocol  
Permanent Virtual Circuits (PVC), Supports up to 1024 Virtual Circuit Identifiers (VCIs)  
Application-controlled multicasting and broadcasting with recipient add and delete capabilities  
Support for UNI 3.0 signalling, ILMI, LAN Emulation Services (SunOS only) and Clients (SunOS  
and Solaris), Classical IP  
SNMP MIB access to adapter status, ATM cell statistics, cell errors, and VCI/VPI information  
General  
Dimensions  
Weight  
0.5" H x 3.3" W x 5.8" D (1.3 cm x 8.4 cm x 14.7 cm)  
6 oz (170 g)  
Power Requirements  
Operating Temperature  
Operating Humidity  
Compliance  
2A (maximum) @ +5V  
32˚F to 104˚F (0˚C to 40˚C)  
20% to 80%, non-condensing @ 40˚C  
FCC Part 15, Class A Verification (UTP); FCC Class B Certification  
(fiber-optic connectors)  
C-28  
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Hardware Specifications  
C.3.10 ESA-200 Technical Specifications  
The ESA-200 ATM Adapter provides ATM connectivity to EISA-based work-  
stations, PCs, and servers, and has the following specifications:  
Hardware  
Architecture  
AAL Support  
On-board 25 mHz i960 cell processor  
Special purpose, on-board hardware for HEC, CRC, and AAL5 and  
3/4 calculations  
UNI  
100 and 140 Mbps TAXI (4B/5B encoding);  
155Mbps OC-3/SONET STS-3c/SDH STM-1  
Form Factor  
Compliance  
Single-slot EISA bus  
ATM cell processing per ANSI T1S1.5/92-002R3, ITU I.361, and  
ATM Forum v3.0 UNI specification  
Cabling  
Duplex 62.5/125 µm multimode fiber (2 km max. run, 10 dB loss);  
2-pair 100 ohm CAT 5 or CAT 5 screened UTP (100 meters max.)  
Connectors  
Memory  
ST and SC Types for multimode fiber; RJ-45 for CAT 5 UTP copper  
256 kbytes on-board RAM  
DMA Support  
32-bit burst mode, bus master; “Fly-by,” scatter-gather DMA sup-  
port; Supports block transfers up to 16 words; Full 32-bit datapath  
Software  
Transparent TCP/IP protocol interface  
Enhanced-performance ATM Application Programming Interface (API) Library  
SPANS Switched Virtual Circuit (SVC) signalling protocol  
Permanent Virtual Circuits (PVC), Supports up to 1024 Virtual Circuit Identifiers (VCIs)  
Application-controlled multicasting and broadcasting with recipient add and delete capabilities  
Support for UNI 3.0 signalling, ILMI, LAN Emulation Clients, Classical IP  
SNMP MIB access to adapter status, ATM cell statistics, cell errors, and VCI/VPI information  
General  
Dimensions  
0.6" H x 4.3" W x 11.7" D (1.5 cm x 10.9 cm x 29.7 cm)  
9 oz. (255 g)  
Weight  
Power Requirements  
Operating Temperature  
Operating Humidity  
Compliance  
2A (maximum) @ +5V  
32˚F to 104˚F (0˚C to 40˚C)  
20% to 80%, non-condensing @ 40˚C  
FCC Part 15, Class A Verification (UTP); FCC Class B Certification  
(fiber-optic connectors)  
C-29  
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Hardware Specifications  
C.3.11 VMA-200 Technical Specifications  
The VMA-200 ATM Adapter provides ATM connectivity to Crimson, Onyx,  
Challenge XL, Challenge L, and Power Challenge machines, and has the fol-  
lowing specifications:  
Hardware  
Architecture  
On-board 25 mHz i960 cell processor  
AAL Support  
Special purpose, on-board hardware for HEC, CRC, and AAL5 and  
3/4 calculations  
UNI  
155 Mbps SONET STS-3c/SDH STM-1  
Form Factor  
Compliance  
Single-slot 6U or 9U VMEbus  
ATM cell processing per ANSI T1S1.5/92-002R3, ITU I.361, and  
ATM Forum v3.0 UNI specification.  
Cabling  
Duplex 62.5/125 µm multimode fiber (2 km max. run, 10 dB loss);  
2-pair 100 ohm CAT 5 or CAT 5 screened UTP (100 meters max.)  
ST and SC Types for multimode fiber; RJ-45 for CAT 5 UTP copper  
256 kbytes on-board RAM  
Connectors  
Memory  
DMA Support  
“Fly-by,” scatter-gather DMA support; VMEbus Master;  
A32/D32, 64 word maximum block transfers; A32/D64, 512 word  
maximum block transfers; Full 32-bit datapath  
VMEbus modes supported Master: A32/D32, A32/D64; Slave: A16/D16, A32/D32  
Requester: Level 3 only - fair requester; Interrupter: Level [7:1]  
Software  
Transparent TCP/IP protocol interface  
Enhanced-performance ATM Application Programming Interface (API) Library  
SPANS Switched Virtual Circuit (SVC) signalling protocol  
Permanent Virtual Circuits (PVC), Supports up to 1024 Virtual Circuit Identifiers (VCIs)  
Application-controlled multicasting and broadcasting with recipient add and delete capabilities  
Support for UNI 3.0 signalling, ILMI, LAN Emulation Services Clients, Classical IP  
SNMP MIB access to adapter status, ATM cell statistics, cell errors, and VCI/VPI information  
General  
Dimensions  
6U: 0.6" H x 6.3" W x 9.2" D ( 1.5 cm x 16 cm x 23.4 cm)  
9U: 0.6" H x 14.4" W x 15.7" D ( 1.5 cm x 36.6 cm x 39.9 cm)  
6U: 10.8 oz. (306 g), 9U: 32.5 oz. (922 g)  
Weight  
Power Requirements  
Operating Temperature  
Operating Humidity  
Compliance  
2A (maximum) @ +5V; 50 mA@ + 12V  
32˚F to 104˚F (0˚C to 40˚C)  
20% to 80%, non-condensing @ 40˚C  
FCC Part 15, Class A Verification (UTP); FCC Class B Certification  
(fiber-optic connectors)  
C-30  
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Hardware Specifications  
C-31  
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Hardware Specifications  
C-32  
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GLOSSARY  
802.1d Spanning Tree Bridging - the IEEE standard for bridging; a MAC  
layer standard for transparently connecting two or more LANs (often called  
subnetworks) that are running the same protocols and cabling. This arrange-  
ment creates an extended network, in which any two workstations on the  
linked LANs can share data.  
802.3 Ethernet - the IEEE standard for Ethernet; a physical-layer standard that  
uses the CSMA/CD access method on a bus-topology LAN.  
802.5 Token Ring - the IEEE physical-layer standard that uses the token-pass-  
ing access method on a ring-topology LAN.  
AAL (ATM Adaptation Layer) - the AAL divides the user information into  
segments suitable for packaging into a series of ATM cells. There are several  
types of AALs in use. FORE Systems currently supports AAL 5 and AAL 3/4.  
AAL 3/4 supports connection-oriented VBR data transfer and connectionless  
VBR data transfer, respectively. AAL 5 is defined as Simple and Efficient  
Adaptation Layer (SEAL).  
AAL Connection - an association established by the AAL between two or  
more next higher layer entities.  
ABR (Available Bit Rate) - a type of traffic for which the ATM network  
attempts to meet that traffic's bandwidth requirements. It does not guarantee  
a specific amount of bandwidth and the end station must retransmit any  
information that did not reach the far end.  
Address Mask - a bit mask used to identify which bits in an address (usually  
an IP address) are network significant, subnet significant, and host significant  
portions of the complete address. This mask is also known as the subnet mask  
because the subnetwork portion of the address can be determined by compar-  
ing the binary version of the mask to an IP address in that subnet. The mask  
holds the same number of bits as the protocol address it references.  
Agent (SNMP) - a component of network- and desktop-management soft-  
ware, such as SNMP, that gathers information from MIBs.  
AIS (Alarm Indication Signal) - a line AIS is asserted when a 111 binary pat-  
tern is detected in bits 6, 7, 8 of the K2 byte for five consecutive frames. A line  
AIS is removed when any pattern other than 111 is detected in these bits for  
five consecutive frames.  
AMI (ATM Management Interface) - the user interface to FORE Systems’  
ForeThought switch control software (SCS). AMI lets users monitor and  
change various operating configurations of FORE Systems switches and net-  
g-1  
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GLOSSARY  
work module hardware and software, IP connectivity, and SNMP network  
management.  
ANSI (American National Standards Institute) - a private organization that  
coordinates the setting and approval of some U.S. standards. It also repre-  
sents the United States to the International Standards Organization.  
API (Application Program Interface) - a language format that defines how a  
program can be made to interact with another program, service, or other soft-  
ware; it allows users to develop custom interfaces with FORE products.  
APP (application program) - a complete, self-contained program that per-  
forms a specific function directly for the user.  
AppleTalk - a networking protocol developed by Apple Computer for com-  
munication between Apple’s products and other computers. Independent of  
the network layer, AppleTalk runs on LocalTalk, EtherTalk and TokenTalk.  
ARP (Address Resolution Protocol) - a method used to resolve higher level  
protocol addressing (such as IP) into the appropriate header data required for  
ATM; i.e., port, VPI, and VCI; also defines the AAL type to be used.  
ASCII (American Standard Code for Information Interchange) - a standard  
character set that (typically) assigns a 7-bit sequence to each letter, number,  
and selected control characters.  
Assigned Cell - a cell that provides a service to an upper layer entity or ATM  
Layer Management entity (ATMM-entity).  
asxmon - a FORE program that repeatedly displays the state of the switch and  
of all its active ports.  
Asynchronous time division multiplexing - a multiplexing technique in  
which a transmission capability is organized into a priori, unassigned time  
slots. The time slots are assigned to cells upon request of each application’s  
instantaneous real need.  
ATM (Asynchronous Transfer Mode) - a transfer mode in which the informa-  
tion is organized into cells. It is asynchronous in the sense that the recurrence  
of cells containing information from an individual user is not necessarily periodic.  
ATM Forum - an international non-profit organization formed with the objec-  
tive of accelerating the use of ATM products and services through a rapid  
convergence of interoperability specifications. In addition, the Forum pro-  
motes industry cooperation and awareness.  
ATM Layer link - a section of an ATM Layer connection between two adja-  
cent active ATM Layer entities (ATM-entities).  
ATM Link - a virtual path link (VPL) or a virtual channel link (VCL).  
g-2  
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GLOSSARY  
ATM Peer-to-Peer Connection - a virtual channel connection (VCC) or a vir-  
tual path connection (VPC) directly established, such as workstation-to-work-  
station. This setup is not commonly used in networks.  
ATM Traffic Descriptor - a generic list of parameters that can be used to cap-  
ture the intrinsic traffic characteristics of a requested ATM connection.  
ATM User-to-User Connection - an association established by the ATM Layer  
to support communication between two or more ATM service users (i.e.,  
between two or more next higher layer entities or between two or more ATM  
entities). The communication over an ATM Layer connection may be either  
bidirectional or unidirectional. The same Virtual Channel Identifier (VCI) is  
used for both directions of a connection at an interface.  
atmarp - a FORE program that shows and manipulates ATM ARP entries  
maintained by the given device driver. This is also used to establish PVC con-  
nections.  
atmconfig - a FORE program used to enable or disable SPANS signalling.  
atmstat - a FORE program that shows statistics gathered about a given  
adapter card by the device driver. These statistics include ATM layer and  
ATM adaptation layer cell and error counts. This can also be used to query  
other hosts via SNMP.  
Backbone - the main connectivity device of a distributed system. All systems  
that have connectivity to the backbone connect to each other. This does not  
stop systems from setting up private arrangements with each other to bypass  
the backbone for cost, performance, or security.  
Bandwidth - usually identifies the capacity or amount of data that can be sent  
through a given circuit; may be user-specified in a PVC.  
BGP (Border Gateway) Protocol - used by gateways in an internet, connect-  
ing autonomous networks. It is derived from experiences learned using the  
EGP.  
BIP (Bit Interleaved Parity) - an error-detection technique in which character  
bit patterns are forced into parity, so that the total number of one bits is  
always odd or always even. This is accomplished by the addition of a one or  
zero bit to each byte, as the byte is transmitted; at the other end of the trans-  
mission, the receiving device verifies the parity (odd or even) and the accu-  
racy of the transmission.  
B-ISDN (Broadband Integrated Services Digital Network) - a common digi-  
tal network suitable for voice, video, and high-speed data services running at  
rates beginning at 155 Mbps.  
Bridge - a device that expands a Local Area Network by forwarding frames  
between data link layers associated with two separate cables, usually carrying  
g-3  
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GLOSSARY  
a common protocol. Bridges can usually be made to filter certain packets (to  
forward only certain traffic).  
Broadband - a service or system requiring transmission channels capable of  
supporting rates greater than the Integrated Services Digital Network (ISDN)  
primary rate.  
Broadband Access - an ISDN access capable of supporting one or more  
broadband services.  
Brouter (bridging/router) - a device that routes some protocols and bridges  
others based on configuration information.  
BUS (Broadcast and Unknown Server) - in an emulated LAN, the BUS is  
responsible for accepting broadcast, multicast, and unknown unicast packets  
from the LECs to the broadcast MAC address (FFFFFFFFFFFF) via dedicated  
point-to-point connections, and forwarding the packets to all of the members  
of the ELAN using a single point-to-multipoint connection.  
CAC (Connection Admission Control) - the procedure used to decide if a  
request for an ATM connection can be accepted based on the attributes of both  
the requested connection and the existing connections.  
Call - an association between two or more users or between a user and a net-  
work entity that is established by the use of network capabilities. This associ-  
ation may have zero or more connections.  
CBR (Constant Bit Rate) - a type of traffic that requires a continuous, specific  
amount of bandwidth over the ATM network (e.g., digital information such  
as video and digitized voice).  
cchan - a FORE program used to manage virtual channels on a FORE Systems  
ATM switch running asxd.  
CCITT (International Telephone and Telegraph Consultative Committee) -  
the international standards body for telecommunications.  
CDV (Cell Delay Variation) - a quantification of cell clumping for a connec-  
tion. The cell clumping CDV (y ) is defined as the difference between a cell’s  
k
expected reference arrival time (c ) and its actual arrival time (a ). The  
k
k
expected reference arrival time (c ) of cell k of a specific connection is  
k
max [c{ k – 1} + T, ak] . T is the reciprocal of the negotiated peak cell rate.  
CE (Connection Endpoint) - a terminator at one end of a layer connection  
within a SAP.  
CEI (Connection Endpoint Identifier) - an identifier of a CE that can be used  
to identify the connection at a SAP.  
Cell - an ATM Layer protocol data unit (PDU).  
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GLOSSARY  
Cell Header - ATM Layer protocol control information.  
Cell Transfer Delay - the transit delay of an ATM cell successfully passed  
between two designated boundaries.  
CLP (Cell Loss Priority) - the last bit of byte four in an ATM cell header; indi-  
cates the eligibility of the cell for discard by the network under congested  
conditions. If the bit is set to 1, the cell may be discarded by the network  
depending on traffic conditions.  
Concentrator - a communications device that offers the ability to concentrate  
many lower-speed channels into and out of one or more high-speed channels.  
Connection - the concatenation of ATM Layer links in order to provide an  
end-to-end information transfer capability to access points.  
Connectionless Service - a type of service in which no pre-determined path  
or link has been established for transfer of information, supported by AAL 4.  
Connection-Oriented Service - a type of service in which information always  
traverses the same pre-established path or link between two points, sup-  
ported by AAL 3.  
Corresponding Entities - peer entities with a lower layer connection among  
them.  
cpath - a FORE program used to manage virtual paths on a FORE Systems  
ATM switch running asxd.  
cport - a FORE program used to monitor and change the state of ports on a  
FORE Systems ATM switch running asxd.  
CRC (Cyclic Redundancy Check) - an error detection scheme in which a  
number is derived from the data that will be transmitted. By recalculating the  
CRC at the remote end and comparing it to the value originally transmitted,  
the receiving node can detect errors.  
CS (Convergence Sublayer) - a portion of the AAL. Data is passed first to the  
CS where it is divided into rational, fixed-length packets or PDUs (Protocol  
Data Units). For example, AAL 4 processes user data into blocks that are a  
maximum of 64 kbytes long.  
DARPA (Defense Advanced Research Projects Agency) - the US govern-  
ment agency that funded the ARPANET.  
DCS (Digital Cross-connect System) - an electronic patch panel used to route  
digital signals in a central office.  
Demultiplexing - a function performed by a layer entity that identifies and  
separates SDUs from a single connection to more than one connection. (See  
multiplexing.)  
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GLOSSARY  
DIP Switch (Dual In-line Package) - a device that has two parallel rows of  
contacts that let the user switch electrical current through a pair of those con-  
tacts to on or off. They are used to reconfigure components and peripherals.  
Domain Name Server - a computer that converts names to their correspond-  
ing Internet numbers. It allows users to telnet or FTP to the name instead of  
the number.  
DNS (Domain Name System) - the distributed name and address mecha-  
nism used in the Internet.  
DSn (Digital Standard n (0, 1, 1C, 2, and 3)) - a method that defines the rate  
and format of digital hierarchy.  
Asynchronous data rates are defined as follows:  
DS0  
DS1  
64kb/s  
1 voice channel  
24 DS0s  
1.544Mb/s  
DS1C 3.152 Mb/s  
2 DS1s  
DS2  
DS3  
6.312 Mb/s  
44.736 Mb/s  
4 DS1s  
28 DS1s  
Synchronous data rates (SONET) are defined as:  
STS-1/OC-1  
51.84 Mb/s  
155.52 Mb/s  
155.52 Mb/s  
622.08 Mb/s  
622.08 Mb/s  
28 DS1s or 1 DS3  
STS-3/OC-3  
3 STS-1s byte interleaved  
STS-3c/OC-3c  
STS-12/OC-12  
STS-12c/OC-12c  
STS-48/OC-48  
Concatenated, indivisible payload  
12 STS-1s, 4 STS-3cs, or any mixture  
Concatenated, indivisible payload  
2488.32 Mb/s 48 STS-1s, 16 STS-3cs, or any mixture  
EGP (Exterior Gateway) Protocol - used by gateways in an internet, connect-  
ing autonomous networks.  
EISA (Extended Industry Standard Architecture) - a bus architecture for  
desktop computers that provides a 32-bit data passage while maintaining  
compatibility with the ISA or AT architecture.  
elarp - a FORE program that shows and manipulates MAC and ATM address  
mappings for LAN Emulation Clients (LECs).  
elconfig - a FORE program that shows and modifies LEC configuration.  
Allows the user to set the NSAP address of the LAN Emulation Configuration  
Server (LECS), display the list of Emulated LANs (ELANs) configured in the  
LECS for this host, display the list of ELANs locally configured along with the  
membership state of each, and locally administer ELAN membership.  
g-6  
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GLOSSARY  
EPROM - Erasable Programmable Read Only Memory (See PROM.)  
ES (End System) - a system in which an ATM connection is terminated or ini-  
tiated. An originating end system initiates the ATM connection, and a termi-  
nating end system terminates the ATM connection. OAM cells may be  
generated and received.  
Ethernet - a 10-Mbps, coaxial standard for LANs in which all nodes connect  
to the cable where they contend for access.  
Fairness - as related to Generic Flow Control (GFC), fairness is defined as  
meeting all of the agreed quality of service (QoS) requirements by controlling  
the order of service for all active connections.  
FCC - a board of commissioners appointed by the President under the Com-  
munications Act of 1934, with the authority to regulate all interstate telecom-  
munications originating in the United States, including transmission over  
phone lines.  
FDDI (Fiber Distributed Data Interface) - high-speed data network that uses  
fiber-optic as the physical medium. Operates in similar manner to Ethernet or  
Token Ring, only faster.  
FDM (Frequency Division Multiplexing) - a method of dividing an available  
frequency range into parts with each having enough bandwidth to carry one  
channel.  
FEBE (Far End Block Error) - an error detected by extracting the 4-bit FEBE  
field from the path status byte (G1). The legal range for the 4-bit field is  
between 0000 and 1000, representing zero to eight errors. Any other value is  
interpreted as zero errors.  
FERF (Far End Receive Failure) - a line error asserted when a 110 binary pat-  
tern is detected in bits 6, 7, 8 of the K2 byte for five consecutive frames. A line  
FERF is removed when any pattern other than 110 is detected in these bits for  
five consecutive frames.  
FIFO (First-In, First-Out) - a method of coordinating the sequential flow of  
data through a buffer.  
Flag - a specific bit pattern used to identify the beginning or end of a frame.  
Frame - a variable length group of data bits with a specific format containing  
flags at the beginning and end to provide demarcation.  
Frame Relay - a fast packet switching protocol based on the LAPD protocol of  
ISDN that performs routing and transfer with less overhead processing than  
X.25.  
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GLOSSARY  
FT-PNNI (ForeThought PNNI) - a FORE Systems routing and signalling pro-  
tocol that uses private ATM (NSAP) addresses; a precursor to ATM Forum  
PNNI (see PNNI).  
ftp (File Transfer Protocol) - a TCP/IP protocol that lets a user on one com-  
puter access, and transfer data to and from, another computer over a net-  
work. ftp is usually the name of the program the user invokes to accomplish  
this task.  
GCRA (Generic Cell Rate Algorithm) - an algorithm which is employed in  
traffic policing and is part of the user/network service contract. The GCRA is  
a scheduling algorithm which ensures that cells are marked as conforming  
when they arrive when expected or later than expected and non-conforming  
when they arrive sooner than expected.  
GFC (Generic Flow Control) - the first four bits of the first byte in an ATM  
cell header. Used to control the flow of traffic across the User-to-Network  
Interface (UNI), and thus into the network. Exact mechanisms for flow control  
are still under investigation and no explicit definition for this field exists at  
this time. (This field is used only at the UNI; for NNI-NNI use (between net-  
work nodes), these four bits provide additional network address capacity,  
and are appended to the VPI field.)  
GIO - a proprietary bus architecture used in certain Silicon Graphics, Inc.  
workstations.  
Header - protocol control information located at the beginning of a protocol  
data unit.  
HEC (Header Error Control) - a CRC code located in the last byte of an ATM  
cell header that is used for checking cell integrity only.  
HIPPI (High Performance Parallel Interface) - an ANSI standard that  
extends the computer bus over fairly short distances at speeds of 800 and 1600  
Mbps.  
HPUX - the Hewlett-Packard version of UNIX.  
HSSI (High-Speed Serial Interface) - a serial communications connection  
that operates at speeds of up to 1.544 Mbps.  
Hub - a device that connects to several other devices, usually in a star topology.  
I/O Module - FORE’s interface cards for the LAX-20 LAN Access Switch,  
designed to connect Ethernet, Token Ring, and FDDI LANs to ForeRunner  
ATM networks.  
g-8  
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ICMP (Internet Control Message Protocol) - the protocol that handles errors  
and control messages at the IP layer. ICMP is actually a part of the IP protocol  
layer. It can generate error messages, test packets, and informational mes-  
sages related to IP.  
IEEE (Institute of Electrical and Electronics Engineers) - the world’s largest  
technical professional society. Based in the U.S.A., the IEEE sponsors technical  
conferences, symposia & local meetings worldwide, publishes nearly 25% of  
the world’s technical papers in electrical, electronics & computer engineering,  
provides educational programs for its members, and promotes standardiza-  
tion.  
IETF (Internet Engineering Task Force) - a large, open, international commu-  
nity of network designers, operators, vendors and researchers whose purpose  
is to coordinate the operation, management and evolution of the Internet to  
resolve short- and mid-range protocol and architectural issues.  
ILMI (Interim Local Management Interface) - the standard that specifies the  
use of the Simple Network Management Protocol (SNMP) and an ATM man-  
agement information base (MIB) to provide network status and configuration  
information.  
Interface Data - the unit of information transferred to/from the upper layer  
in a single interaction across a SAP. Each Interface Data Unit (IDU) controls  
interface information and may also contain the whole or part of the SDU.  
internet - while an internet is a network, the term “internet” is usually used to  
refer to a collection of networks interconnected with routers.  
Internet - (note the capital “I”) the largest internet in the world including  
large national backbone nets and many regional and local networks world-  
wide. The Internet uses the TCP/IP suite. Networks with only e-mail connec-  
tivity are not considered on the Internet.  
Internet Addresses - the numbers used to identify hosts on an internet net-  
work. Internet host numbers are divided into two parts; the first is the net-  
work number and the second, or local, part is a host number on that particular  
network. There are also three classes of networks in the Internet, based on the  
number of hosts on a given network. Large networks are classified as Class A,  
having addresses in the range 1-126 and having a maximum of 16,387,064  
hosts. Medium networks are classified as Class B, with addresses in the range  
128-191 and with a maximum of 64,516 hosts. Small networks are classified as  
Class C, having addresses in the range 192-254 with a maximum of 254 hosts.  
Addresses are given as dotted decimal numbers in the following format:  
nnn.nnn.nnn.nnn  
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In a Class A network, the first of the numbers is the network number, the last  
three numbers are the local host address.  
In a Class B network, the first two numbers are the network, the last two are  
the local host address.  
In a Class C network, the first three numbers are the network address, the last  
number is the local host address.  
The following table summarizes the classes and sizes:  
Class First #  
Max# Hosts  
16,387,064  
64,516  
A
B
1-126  
129-191  
192-223  
C
254  
Network mask values are used to identify the network portion and the host  
portion of the address. For:  
Class A - the default mask is 255.0.0.0  
Class B - the default mask is 255.255.0.0  
Class C - the default mask is 255.255.255.0  
Subnet masking is used when a portion of the host ID is used to identify a  
subnetwork. For example, if a portion of a Class B network address is used for  
a subnetwork, the mask could be set as 255.255.255.0. This would allow the  
third byte to be used as a subnetwork address. All hosts on the network  
would still use the IP address to get on the Internet.  
IP (Internet Protocol) - a connectionless, best-effort packet switching protocol  
that offers a common layer over dissimilar networks.  
IPX Protocol (Internetwork Packet Exchange) - a NetWare protocol similar to  
the Xerox Network Systems (XNS) protocol that provides datagram delivery  
of messages.  
IS (Intermediate system) - a system that provides forwarding functions or  
relaying functions or both for a specific ATM connection. OAM cells may be  
generated and received.  
ISA Bus - a bus standard developed by IBM for expansion cards in the first  
IBM PC. The original bus supported a data path only 8 bits wide. IBM subse-  
quently developed a 16-bit version for its AT class computers. The 16-bit AT  
ISA bus supports both 8- and 16-bit cards. The 8-bit bus is commonly called  
the PC/XT bus, and the 16-bit bus is called the AT bus.  
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GLOSSARY  
ISDN (Integrated Services Digital Network) - an emerging technology that  
is beginning to be offered by the telephone carriers of the world. ISDN com-  
bines voice and digital network services into a single medium or wire.  
ISO (International Standards Organization) - a voluntary, non treaty organi-  
zation founded in 1946 that is responsible for creating international standards  
in many areas, including computers and communications.  
Isochronous - signals carrying embedded timing information or signals that  
are dependent on uniform timing; usually associated with voice and/or video  
transmission.  
Jumper - a patch cable or wire used to establish a circuit, often temporarily,  
for testing or diagnostics; also, the devices, shorting blocks, used to connect  
adjacent exposed pins on a printed circuit board that control the functionality  
of the card.  
LAN (Local Area Network) - a data network intended to serve an area of only  
a few square kilometers or less. Because the network is known to cover only a  
small area, optimizations can be made in the network signal protocols that  
permit higher data rates.  
lane - a program that provides control over the execution of the LAN Emula-  
tion Server (LES), Broadcast/Unknown Server (BUS), and LAN Emulation  
Configuration Server (LECS) on the local host.  
LAN Access Concentrator - a LAN access device that allows a shared trans-  
mission medium to accommodate more data sources than there are channels  
currently available within the transmission medium.  
Layer Entity - an active layer within an element.  
Layer Function - a part of the activity of the layer entities.  
Layer Service - a capability of a layer and the layers beneath it that is pro-  
vided to the upper layer entities at the boundary between that layer and the  
next higher layer.  
Layer User Data - the information transferred between corresponding entities  
on behalf of the upper layer or layer management entities for which they are  
providing services.  
le - a FORE program that implements both the LAN Emulation Server (LES)  
and the Broadcast/Unknown Server (BUS).  
LEC (LAN Emulation Client) - the component in an end system that per-  
forms data forwarding, address resolution, and other control functions when  
communicating with other components within an ELAN.  
lecs - a FORE program that implements the assignment of individual LECs to  
different emulated LANs.  
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GLOSSARY  
LECS (LAN Emulation Configuration Server) - the LECS is responsible for  
the initial configuration of LECs. It provides information about available  
ELANs that a LEC may join, together with the addresses of the LES and BUS  
associated with each ELAN.  
leq - a FORE program that provides information about an ELAN. This infor-  
mation is obtained from the LES, and includes MAC addresses registered on  
the ELAN together with their corresponding ATM addresses.  
LES (LAN Emulation Server) - the LES implements the control coordination  
function for an ELAN. The LES provides the service of registering and resolv-  
ing MAC addresses to ATM addresses.  
LLC (Logical Link Control) - a protocol developed by the IEEE 802 commit-  
tee for data-link-layer transmission control; the upper sublayer of the IEEE  
Layer 2 (OSI) protocol that complements the MAC protocol; IEEE standard  
802.2; includes end-system addressing and error checking.  
LOF (Loss Of Frame) - a type of transmission error that may occur in wide-  
area carrier lines.  
looptest - a program that tests the interface for basic cell reception and trans-  
mission functionality. It is usually used for diagnostic purposes to determine  
if an interface is functioning properly.  
LOP (Loss Of Pointer) - a type of transmission error that may occur in wide-  
area carrier lines.  
LOS (Loss Of Signal) - a type of transmission error that may occur in wide-  
area carrier lines.  
MAC (Media Access Control) - a media-specific access control protocol  
within IEEE 802 specifications; currently includes variations for Token Ring,  
token bus, and CSMA/CD; the lower sublayer of the IEEE's link layer (OSI),  
which complements the Logical Link Control (LLC).  
Metasignalling - an ATM Layer Management (LM) process that manages dif-  
ferent types of signalling and possibly semipermanent virtual channels (VCs),  
including the assignment, removal, and checking of VCs.  
Metasignalling VCs - the standardized VCs that convey metasignalling  
information across a User-to-Network Interface (UNI).  
MIB (Management Information Base) - the set of parameters an SNMP man-  
agement station can query or set in the SNMP agent of a networked device  
(e.g., router).  
MIC (Media Interface Connector) - the optical fiber connector that joins the  
fiber to the FDDI controller.  
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GLOSSARY  
MicroChannel - a proprietary 16- or 32-bit bus developed by IBM for its PS/2  
computers’ internal expansion cards; also offered by others.  
MTU (Maximum Transmission Unit) - the largest unit of data that can be  
sent over a type of physical medium.  
Multi-homed - a device that has both an ATM and another network connec-  
tion, typically Ethernet.  
Multiplexing - a function within a layer that interleaves the information from  
multiple connections into one connection. (See demultiplexing.)  
Multipoint Access - user access in which more than one terminal equipment  
(TE) is supported by a single network termination.  
Multipoint-to-Point Connection - a Point-to-Multipoint Connection may  
have zero bandwidth from the Root Node to the Leaf Nodes, and non-zero  
return bandwidth from the Leaf Nodes to the Root Node. Such a connection is  
also known as a Multipoint-to-Point Connection.  
Multipoint-to-Multipoint Connection - a collection of associated ATM VC or  
VP links, and their associated endpoint nodes, with the following properties:  
1. All N nodes in the connection, called Endpoints, serve as a Root Node in a  
Point-to-Multipoint connection to all of the (N-1) remaining endpoints.  
2. Each of the endpoints on the connection can send information directly to  
any other endpoint, but the receiving endpoint cannot distinguish which of  
the endpoints is sending information without additional (e.g., higher layer)  
information.  
Network Module - ATM port interface cards which may be individually  
added or removed from any ForeRunner ATM switch to provide a diverse  
choice of connection alternatives. Each network module provides between  
one and six full-duplex ATM physical connections to the ForeRunner switch.  
NMS (Network Management Station) - the system responsible for managing  
a network or a portion of a network. The NMS talks to network management  
agents, which reside in the managed nodes.  
NNI (Network-to-Network Interface or Network Node Interface) - the inter-  
face between two public network pieces of equipment.  
NuBus - a high-speed bus used in the Macintosh family of computers, struc-  
tured so that users can put a card into any slot on the board without creating  
conflict over the priority between those cards  
OAM (Operation and Maintenance) Cell - a cell that contains ATM LM  
information. It does not form part of the upper layer information transfer.  
OpenView - Hewlett-Packard’s network management software.  
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GLOSSARY  
OSI (Open Systems Interconnection) - the 7-layer suite of protocols  
designed by ISO committees to be the international standard computer net-  
work architecture.  
OSPF (Open Shortest Path First) Protocol - a routing algorithm for IP that  
incorporates least-cost, equal-cost, and load balancing.  
Out-of-Band Management - refers to switch configuration via the serial port  
or over Ethernet, not ATM.  
Packet Switching - a communications paradigm in which packets (messages)  
are individually routed between hosts with no previously established com-  
munications path.  
PBX (Private Branch Exchange) - a private phone system (switch) that con-  
nects to the public telephone network and offers in-house connectivity. To  
reach an outside line, the user must dial a digit like 8 or 9.  
PCI (Peripheral Component Interconnect) - a local-bus standard created by  
Intel.  
PCM (Pulse Code Modulation) - a modulation scheme that samples the  
information signals and transmits a series of coded pulses to represent the  
data.  
PDN (Public Data Network) - a network designed primarily for data trans-  
mission and intended for sharing by many users from many organizations.  
PDU (Protocol Data Unit) - a unit of data specified in a layer protocol and  
consisting of protocol control information and layer user data.  
Peak Cell Rate - at the PHY Layer SAP of a point-to-point VCC, the Peak Cell  
Rate R is the inverse of the minimum inter-arrival time T of the request to  
p
0
send an ATM-SDU.  
Peer Entities - entities within the same layer.  
PHY (Physical Layer) - the actual cards, wires, and/or fiber-optic cabling  
used to connect computers, routers, and switches.  
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GLOSSARY  
Physical Layer (PHY) Connection - an association established by the PHY  
between two or more ATM-entities. A PHY connection consists of the concat-  
enation of PHY links in order to provide an end-to-end transfer capability to  
PHY SAPs.  
PMD (Physical Medium Dependent) - a sublayer concerned with the bit  
transfer between two network nodes. It deals with wave shapes, timing  
recovery, line coding, and electro-optic conversions for fiber based links.  
PNNI (Private Network Node Interface or Private Network-to-Network  
Interface) - a protocol that defines the interaction of private ATM switches or  
groups of private ATM switches  
ping (Packet Internet Groper) - a program used to test reachability of desti-  
nations by sending them an ICMP echo request and waiting for a reply.  
Point-to-Multipoint Connection - a collection of associated ATM VC or VP  
links, with associated endpoint nodes, with the following properties:  
1. One ATM link, called the Root Link, serves as the root in a simple tree  
topology. When the Root node sends information, all of the remaining nodes  
on the connection, called Leaf nodes, receive copies of the information.  
2. Each of the Leaf Nodes on the connection can send information directly to  
the Root Node. The Root Node cannot distinguish which Leaf is sending  
information without additional (higher layer) information. (See the following  
note for Phase 1.)  
3. The Leaf Nodes cannot communicate directly to each other with this con-  
nection type.  
Note: Phase 1 signalling does not support traffic sent from a Leaf to the Root.  
Point-to-Point Connection - a connection with only two endpoints.  
Primitive - an abstract, implementation-independent interaction between a  
layer service user and a layer service provider.  
PROM (Programmable Read-Only Memory) - a chip-based information stor-  
age area that can be recorded by an operator but erased only through a physi-  
cal process.  
Protocol - a set of rules and formats (semantic and syntactic) that determines  
the communication behavior of layer entities in the performance of the layer  
functions.  
Protocol Control Information - the information exchanged between corre-  
sponding entities using a lower layer connection to coordinate their joint  
operation.  
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GLOSSARY  
Proxy - the process in which one system acts for another system to answer  
protocol requests.  
Proxy Agent - an agent that queries on behalf of the manager, used to monitor  
objects that are not directly manageable.  
PSN (Packet Switched Network) - a network designed to carry data in the  
form of packets. The packet and its format is internal to that network.  
PT (Payload Type) - bits 2...4 in the fourth byte of an ATM cell header. The PT  
indicates the type of information carried by the cell. At this time, values 0...3  
are used to identify various types of user data, values 4 and 5 indicate man-  
agement information, and values 6 and 7 are reserved for future use.  
PVC (Permanent Virtual Circuit (or Channel)) - a circuit or channel through  
an ATM network provisioned by a carrier between two endpoints; used for  
dedicated long-term information transport between locations.  
Q.2931 - Derived from Q.93B, the narrowband ISDN signalling protocol, an  
ITU standard describing the signalling protocol to be used by switched vir-  
tual circuits on ATM LANs.  
Relaying - a function of a layer by means of which a layer entity receives data  
from a corresponding entity and transmits it to another corresponding entity.  
RFCs (Requests For Comment) - IETF documents suggesting protocols and  
policies of the Internet, inviting comments as to the quality and validity of  
those policies. These comments are collected and analyzed by the IETF in  
order to finalize Internet standards.  
RFI (Radio Frequency Interference) - the unintentional transmission of radio  
signals. Computer equipment and wiring can both generate and receive RFI.  
RIP (Routing Information Protocol) - a distance vector-based protocol that  
provides a measure of distance, or hops, from a transmitting workstation to a  
receiving workstation.  
RISC (Reduced Instruction Set Computer) - a generic name for CPUs that  
use a simpler instruction set than more traditional designs.  
Router - a device that forwards traffic between networks or subnetworks  
based on network layer information.  
SBus - hardware interface for add-in boards in later-version Sun 3 workstations.  
SAP (Service Access Point) - the point at which an entity of a layer provides  
services to its LM entity or to an entity of the next higher layer.  
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GLOSSARY  
SAR (Segmentation And Reassembly) - the SAR accepts PDUs from the CS  
and divides them into very small segments (44 bytes long). If the CS-PDU is  
less than 44 bytes, it is padded to 44 with zeroes. A two-byte header and  
trailer are added to this basic segment. The header identifies the message type  
(beginning, end, continuation, or single) and contains sequence numbering  
and message identification. The trailer gives the SAR-PDU payload length,  
exclusive of pad, and contains a CRC check to ensure the SAR-PDU integrity.  
The result is a 48-byte PDU that fits into the payload field of an ATM cell.  
SCSI (Small Computer Systems Interface) - a standard for a controller bus  
that connects disk drives and other devices to their controllers on a computer  
bus. It is typically used in small systems.  
SDLC (Synchronous Data Link Control) - IBM’s data link protocol used in  
SNA networks.  
SDU (Service Data Unit) - a unit of interface information whose identity is  
preserved from one end of a layer connection to the other.  
SEAL (Simple and Efficient Adaptation Layer) - also called AAL 5, this ATM  
adaptation layer assumes that higher layer processes will provide error recov-  
ery, thereby simplifying the SAR portion of the adaptation layer. Using this  
AAL type packs all 48 bytes of an ATM cell information field with data. It also  
assumes that only one message is crossing the UNI at a time. That is, multiple  
end-users at one location cannot interleave messages on the same VC, but  
must queue them for sequential transmission.  
Segment - a single ATM link or group of interconnected ATM links of an ATM  
connection.  
Semipermanent Connection - a connection established via a service order or  
via network management.  
SGMP (Simple Gateway Management Protocol) - the predecessor to SNMP.  
Shaping Descriptor - n ordered pairs of GCRA parameters (I,L) used to  
define the negotiated traffic shape of an APP connection. The traffic shape  
refers to the load-balancing of a network. In this context, load-balancing  
means configuring the data flows to maximize the efficiency of the network.  
SIR (Sustained Information Rate) - the long-term average data transmission  
rate across the User-to-Network Interface.  
SMDS (Switched Multimegabit Data Service) - a high-speed, datagram-  
based, public data network service expected to be widely used by telephone  
companies in their data networks.  
SMTP (Simple Mail Transfer Protocol) - the Internet electronic mail protocol  
used to transfer electronic mail between hosts.  
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GLOSSARY  
SNAP - SubNetwork Access Protocol  
SNMP (Simple Network Management Protocol) - the Internet standard pro-  
tocol for managing nodes on an IP network.  
snmpd - an SMNP agent for a given adapter card.  
SONET (Synchronous Optical Network) - a new and growing body of stan-  
dards that defines all aspects of transporting and managing digital traffic over  
optical facilities in the public network.  
Source Traffic Descriptor - a set of traffic parameters belonging to the ATM  
Traffic Descriptor used during the connection set-up to capture the intrinsic  
traffic characteristics of the connection requested by the source.  
Spanning Tree Protocol - provides loop-free topology in a network environ-  
ment where there are redundant paths.  
SPANS (Simple Protocol for ATM Network Signalling) - FORE Systems’  
proprietary signalling protocol used for establishing SVCs between FORE  
Systems equipment.  
SPARC (Scalable Processor Architecture Reduced instruction set Com-  
puter) - a powerful workstation similar to a reduced-instruction-set-comput-  
ing (RISC) workstation.  
SPE (Synchronous Payload Envelope) - the payload field plus a little over-  
head of a basic SONET signal.  
SPVC (Smart PVC) - a generic term for any communications medium which  
is permanently provisioned at the end points, but switched in the middle. In  
ATM, there are two kinds of SPVCs: smart permanent virtual path connec-  
tions (SPVPCs) and smart permanent virtual channel connections (SPVCCs).  
Static Route - a route that is entered manually into the routing table.  
STM (Synchronous Transfer Mode) - a transport and switching method that  
depends on information occurring in regular and fixed patterns with respect  
to a reference such as a frame pattern.  
STP (Shielded Twisted Pair) - two or more insulated wires that are twisted  
together and then wrapped in a cable with metallic braid or foil to prevent  
interference and offer noise-free transmissions.  
STS (Synchronous Transport Signal) - a SONET electrical signal rate.  
Sublayer - a logical subdivision of a layer.  
SVC (Switched Virtual Circuit (or Channel)) - a channel established on  
demand by network signalling, used for information transport between two  
locations and lasting only for the duration of the transfer; the datacom equiv-  
alent of a dialed telephone call.  
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GLOSSARY  
Switched Connection - a connection established via signalling.  
Symmetric Connection - a connection with the same bandwidth value speci-  
fied for both directions.  
Synchronous - signals that are sourced from the same timing reference and  
hence are identical in frequency.  
Systems Network Architecture (SNA) - a proprietary networking architec-  
ture used by IBM and IBM-compatible mainframe computers.  
Tachometer - in ForeView, the tachometer shows the level of activity on a  
given port. The number in the tachometer shows the value of a chosen param-  
eter in percentage, with a colored bar providing a semi-logarithmic represen-  
tation of that percentage.  
TAXI - Transparent Asynchronous Transmitter/Receiver Interface  
TC (Transmission Convergence) - generates and receives transmission  
frames and is responsible for all overhead associated with the transmission  
frame. The TC sublayer packages cells into the transmission frame.  
TCP (Transmission Control Protocol) - a specification for software that bun-  
dles and unbundles sent and received data into packets, manages the trans-  
mission of packets on a network, and checks for errors.  
TCP/IP (Transmission Control Protocol/Internet Protocol) - a set of commu-  
nications protocols that has evolved since the late 1970s, when it was first  
developed by the Department of Defense. Because programs supporting  
these protocols are available on so many different computer systems, they  
have become an excellent way to connect different types of computers over  
networks.  
TDM (Time Division Multiplexing) - a traditional digital multiplexing in  
which a signal occupies a fixed, repetitive time slot within a higher-rate signal.  
Token Ring - a network access method in which the stations circulate a token.  
Stations with data to send must have the token to transmit their data.  
topology - a program that displays the topology of a FORE Systems ATM net-  
work. An updated topology can be periodically re-displayed by use of the  
interval command option.  
Traffic - the calls being sent and received over a communications network.  
Also, the packets that are sent on a data network.  
Trailer - the protocol control information located at the end of a PDU.  
Transit Delay - the time difference between the instant at which the first bit of  
a PDU crosses one designated boundary, and the instant at which the last bit  
of the same PDU crosses a second designated boundary.  
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GLOSSARY  
trap - a program interrupt mechanism that automatically updates the state of  
the network to remote network management hosts. The SNMP agent on the  
switch supports these SNMP traps.  
UBR (Unspecified Bit Rate) - a type of traffic that is not considered time-criti-  
cal (e.g., ARP messages, pure data), allocated whatever bandwidth is avail-  
able at any given time. UBR traffic is given a “best effort” priority in an ATM  
network with no guarantee of successful transmission.  
UDP (User Datagram Protocol) - the TCP/IP transaction protocol used for  
applications such as remote network management and name-service access;  
this lets users assign a name, such as “RVAX*2,S,” to a physical or numbered  
address.  
Unassigned Cells - a cell identified by a standardized virtual path identifier  
(VPI) and virtual channel identifier (VCI) value, which has been generated  
and does not carry information from an application using the ATM Layer service.  
UNI (User-to-Network Interface) - the physical and electrical demarcation  
point between the user and the public network service provider.  
UNI 3.0 - the User-to-Network Interface standard set forth by the ATM Forum  
that defines how private customer premise equipment interacts with private  
ATM switches.  
UTP (Unshielded Twisted Pair) - a cable that consists of two or more insu-  
lated conductors in which each pair of conductors are twisted around each  
other. There is no external protection and noise resistance comes solely from  
the twists.  
VBR (Variable Bit Rate) - a type of traffic that, when sent over a network, is  
tolerant of delays and changes in the amount of bandwidth it is allocated  
(e.g., data applications).  
VC (Virtual Channel (or Circuit)) - a communications path between two  
nodes identified by label rather than fixed physical path.  
VCC (Virtual Channel Connection) - a unidirectional concatenation of VCLs  
that extends between the points where the ATM service users access the ATM  
Layer. The points at which the ATM cell payload is passed to, or received  
from, the users of the ATM Layer (i.e., a higher layer or ATMM-entity) for  
processing signify the endpoints of a VCC.  
VCI (Virtual Channel Identifier) - the address or label of a VC.  
VCL (Virtual Channel Link) - a means of unidirectional transport of ATM  
cells between the point where a VCI value is assigned and the point where  
that value is translated or removed.  
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GLOSSARY  
VINES (Virtual Network Software) - Banyan’s network operating system  
based on UNIX and its protocols.  
Virtual Channel Switch - a network element that connects VCLs. It termi-  
nates VPCs and translates VCI values. The Virtual Channel Switch is directed  
by Control Plane functions and relays the cells of a VC.  
Virtual Path Switch - a network element that connects VPLs, it translates VPI  
(not VCI) values and is directed by Control Plane functions. The Virtual Path  
Switch relays the cells of a Virtual Path.  
VPT (Virtual Path Terminator) - a system that unbundles the VCs of a VP for  
independent processing of each VC.  
VP (Virtual Path) - a unidirectional logical association or bundle of VCs.  
VPC (Virtual Path Connection) - a concatenation of VPLs between virtual  
path terminators (VPTs). VPCs are unidirectional.  
VPDN (Virtual Private Data Network) - a private data communications net-  
work built on public switching and transport facilities rather than dedicated  
leased facilities such as T1s.  
VPI (Virtual Path Identifier) - the address or label of a particular VP.  
VPL (Virtual Path Link) - a means of unidirectional transport of ATM cells  
between the point where a VPI value is assigned and the point where that  
value is translated or removed.  
VPN (Virtual Private Network) - a private voice communications network  
built on public switching and transport facilities rather than dedicated leased  
facilities such as T1s.  
VT (Virtual Tributary) - a structure used to carry payloads such as DS1s that  
run at significantly lower rates than STS-1s.  
WAN (Wide-Area Network) - a network that covers a large geographic area.  
X.25 - a well-established data switching and transport method that relies on a  
significant amount of processing to ensure reliable transport over metallic  
media.  
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GLOSSARY  
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