Cabletron Systems Switch 2H23 50R User Manual

2H23-50R/2H33-37R  
SmartSwitch 2100  
User’s Guide  
CONN  
CONN  
CONN  
CONN  
4
3
2
1
CONN  
CONN  
CONN  
CONN  
4
3
2
1
1
1
12  
12  
1
1
12  
12  
100  
10  
CONN 3  
CONN 1  
CONN 4  
CONN 2  
PWR  
CPU  
RESET  
2H23-50R  
5
6
COM  
1
12  
12  
CONN  
CONN  
CONN  
3
2
1
CONN  
CONN  
CONN  
3
2
1
100  
10  
CONN 3  
CONN 1  
1
1
12  
PWR  
CPU  
RESET  
2H33-37R  
CONN 2  
COM  
9032286-04  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Only qualified personnel should perform installation  
procedures.  
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.  
1998 by Cabletron Systems, Inc., P.O. Box 5005, Rochester, NH 03866-5005  
All Rights Reserved  
Printed in the United States of America  
Order Number: 9032286-04 September 1998  
Cabletron Systems, SPECTRUM, LANVIEW, QuickSET, and SecureFast are registered  
trademarks and SmartSwitch is a trademark of Cabletron Systems, Inc.  
All other product names mentioned in this manual may be trademarks or registered trademarks of  
their respective companies.  
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.  
Printed on  
Recycled Paper  
2H23-50R/2H33-37R User’s Guide  
i
Download from Www.Somanuals.com. All Manuals Search And Download.  
Notice  
INDUSTRY CANADA NOTICE  
This digital apparatus does not exceed the Class A limits for radio noise emissions from digital  
apparatus set out in the Radio Interference Regulations of the Canadian Department of  
Communications.  
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables  
aux appareils numériques de la class A prescrites dans le Règlement sur le brouillage radioélectrique  
édicté par le ministère des Communications du Canada.  
VCCI NOTICE  
This is a Class A product based on the standard of the Voluntary Control Council for Interference by  
Information Technology Equipment (VCCI). If this equipment is used in a domestic environment,  
radio disturbance may arise. When such trouble occurs, the user may be required to take corrective  
actions.  
CABLETRON SYSTEMS, INC. PROGRAM LICENSE AGREEMENT  
IMPORTANT: Before utilizing this product, carefully read this License Agreement.  
This document is an agreement between you, the end user, and Cabletron Systems, Inc. (“Cabletron”)  
that sets forth your rights and obligations with respect to the Cabletron software program (the  
“Program”) contained in this package. The Program may be contained in firmware, chips or other  
media. BY UTILIZING THE ENCLOSED PRODUCT, YOU ARE AGREEING TO BECOME  
BOUND BY THE TERMS OF THIS AGREEMENT, WHICH INCLUDES THE LICENSE AND  
THE LIMITATION OF WARRANTY AND DISCLAIMER OF LIABILITY. IF YOU DO NOT  
AGREE TO THE TERMS OF THIS AGREEMENT, PROMPTLY RETURN THE UNUSED  
PRODUCT TO THE PLACE OF PURCHASE FOR A FULL REFUND.  
ii  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Notice  
CABLETRON SOFTWARE PROGRAM LICENSE  
1.  
LICENSE. You have the right to use only the one (1) copy of the Program provided in this  
package subject to the terms and conditions of this License Agreement.  
You may not copy, reproduce or transmit any part of the Program except as permitted by the  
Copyright Act of the United States or as authorized in writing by Cabletron.  
2.  
3.  
OTHER RESTRICTIONS. You may not reverse engineer, decompile, or disassemble the  
Program.  
APPLICABLE LAW. This License Agreement shall be interpreted and governed under the laws  
and in the state and federal courts of New Hampshire. You accept the personal jurisdiction and  
venue of the New Hampshire courts.  
EXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITY  
1.  
EXCLUSION OF WARRANTY. Except as may be specifically provided by Cabletron in  
writing, Cabletron makes no warranty, expressed or implied, concerning the Program (including  
its documentation and media).  
CABLETRON DISCLAIMS ALL WARRANTIES, OTHER THAN THOSE SUPPLIED TO  
YOU BY CABLETRON IN WRITING, EITHER EXPRESSED OR IMPLIED, INCLUDING  
BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY AND  
FITNESS FOR A PARTICULAR PURPOSE, WITH RESPECT TO THE PROGRAM, THE  
ACCOMPANYING WRITTEN MATERIALS, AND ANY ACCOMPANYING HARDWARE.  
2.  
NO LIABILITY FOR CONSEQUENTIAL DAMAGES. IN NO EVENT SHALL  
CABLETRON OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER  
(INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS,  
PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, SPECIAL,  
INCIDENTAL, CONSEQUENTIAL, OR RELIANCE DAMAGES, OR OTHER LOSS)  
ARISING OUT OF THE USE OR INABILITY TO USE THIS CABLETRON PRODUCT,  
EVEN IF CABLETRON HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH  
DAMAGES. BECAUSE SOME STATES DO NOT ALLOW THE EXCLUSION OR  
LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR  
ON THE DURATION OR LIMITATION OF IMPLIED WARRANTIES, IN SOME  
INSTANCES THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO  
YOU.  
UNITED STATES GOVERNMENT RESTRICTED RIGHTS  
The enclosed product (a) was developed solely at private expense; (b) contains “restricted computer  
software” submitted with restricted rights in accordance with Section 52227-19 (a) through (d) of the  
Commercial Computer Software - Restricted Rights Clause and its successors, and (c) in all respects  
is proprietary data belonging to Cabletron and/or its suppliers.  
For Department of Defense units, the product is licensed with “Restricted Rights” as defined in the  
DoD Supplement to the Federal Acquisition Regulations, Section 52.227-7013 (c) (1) (ii) and its  
successors, and use, duplication, disclosure by the Government is subject to restrictions as set forth in  
subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software clause at  
252.227-7013. Cabletron Systems, Inc., 35 Industrial Way, Rochester, New Hampshire 03867-0505.  
2H23-50R/2H33-37R User’s Guide  
iii  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Notice  
SAFETY INFORMATION  
CLASS 1 LASER TRANSCEIVERS  
THE FE-100F3 FAST ETHERNET INTERFACE MODULE, FPIM-05 AND  
FPIM-07 FDDI PORT INTERFACE MODULES, AND APIM-29 ATM  
PORT INTERFACE MODULE USE CLASS 1 LASER TRANSCEIVERS.  
READ THE FOLLOWING SAFETY INFORMATION BEFORE  
INSTALLING OR OPERATING THESE MODULES.  
The Class 1 laser transceivers use an optical feedback loop to maintain Class 1 operation limits. This  
control loop eliminates the need for maintenance checks or adjustments. The output is factory set, and  
does not allow any user adjustment. Class 1 Laser transceivers comply with the following safety  
standards:  
21 CFR 1040.10 and 1040.11 U.S. Department of Health and Human Services (FDA).  
IEC Publication 825 (International Electrotechnical Commission).  
CENELEC EN 60825 (European Committee for Electrotechnical Standardization).  
When operating within their performance limitations, laser transceiver output meets the Class 1  
accessible emission limit of all three standards. Class 1 levels of laser radiation are not considered  
hazardous.  
SAFETY INFORMATION  
CLASS 1 LASER TRANSCEIVERS  
LASER RADIATION AND CONNECTORS  
When the connector is in place, all laser radiation remains within the fiber. The maximum amount of  
-6  
radiant power exiting the fiber (under normal conditions) is -12.6 dBm or 55 x 10 watts.  
Removing the optical connector from the transceiver allows laser radiation to emit directly from the  
optical port. The maximum radiance from the optical port (under worst case conditions) is  
-2  
3
2
0.8 W cm or 8 x 10 W m sr-1.  
Do not use optical instruments to view the laser output. The use of optical instruments to view  
laser output increases eye hazard. When viewing the output optical port, power must be  
removed from the network adapter.  
iv  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Notice  
DECLARATION OF CONFORMITY  
Application of Council Directive(s): 89/336/EEC  
73/23/EEC  
Manufacturer’s Name: Cabletron Systems, Inc.  
Manufacturer’s Address: 35 Industrial Way  
PO Box 5005  
Rochester, NH 03867  
European Representative Name: Mr. J. Solari  
European Representative Address: Cabletron Systems Limited  
Nexus House, Newbury Business Park  
London Road, Newbury  
Berkshire RG13 2PZ, England  
Conformance to Directive(s)/Product Standards: EC Directive 89/336/EEC  
EC Directive 73/23/EEC  
EN 55022  
EN 50082-1  
EN 60950  
Equipment Type/Environment: Networking Equipment, for use in a  
Commercial or Light Industrial  
Environment.  
We the undersigned, hereby declare, under our sole responsibility, that the equipment packaged  
with this notice conforms to the above directives.  
Manufacturer  
Legal Representative in Europe  
Mr. Ronald Fotino  
Mr. J. Solari  
___________________________________  
___________________________________  
Full Name  
Full Name  
Principal Compliance Engineer  
Managing Director - E.M.E.A.  
___________________________________  
___________________________________  
Title  
Title  
Rochester, NH, USA  
Newbury, Berkshire, England  
___________________________________  
___________________________________  
Location  
Location  
2H23-50R/2H33-37R User’s Guide  
v
Download from Www.Somanuals.com. All Manuals Search And Download.  
Notice  
vi  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
CHAPTER 1  
1.3.10 LANVIEW Diagnostic LEDs............................................ 1-7  
1.4.1 Fast Ethernet Interface Modules..................................... 1-8  
1.7 Related Manuals........................................................................ 1-11  
CHAPTER 2  
CHAPTER 3  
3.1 Required Tools ............................................................................ 3-1  
3.2 Unpacking the Device.................................................................. 3-2  
3.3 Installing Options......................................................................... 3-2  
3.4 Installing the Device .................................................................... 3-3  
3.4.1 Tabletop or Shelf Installation .......................................... 3-3  
3.4.2 Rackmount Installation ................................................... 3-4  
3.4.3 Connecting Power to the Device .................................... 3-7  
2H23-50R/2H33-37R User’s Guide  
vii  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Contents  
3.6 Completing the Installation.........................................................3-15  
CHAPTER 4  
CHAPTER 5  
5.7.9 Setting the Operational Mode........................................5-26  
5.7.10 Configuring the COM Port.............................................5-28  
5.7.10.1 Changing the COM Port Application.............5-30  
5.7.11 Clearing NVRAM...........................................................5-30  
5.7.12 Enabling/Disabling IP Fragmentation............................5-32  
5.8 SNMP Community Names Screen.............................................5-33  
5.8.1 Establishing Community Names ...................................5-35  
viii  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
5.10.3 Setting (Enabling or Disabling) the Port Status ............ 5-42  
5.21 Port Level Security Configuration Screen.................................. 5-75  
5.21.1 Setting the Port Level Security ..................................... 5-78  
5.22 Device Statistics Menu Screen.................................................. 5-79  
5.23 Switch Statistics Screen ............................................................ 5-81  
5.24 Interface Statistics Screen......................................................... 5-83  
5.24.1 Displaying Interface Statistics....................................... 5-86  
5.24.2 Using the Clear Counters Command............................ 5-87  
2H23-50R/2H33-37R User’s Guide  
ix  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Contents  
5.26 Repeater Statistics Screen ........................................................5-92  
APPENDIX A  
A.1 Device Specifications.................................................................. A-1  
A.3 Electrical Specifications .............................................................. A-2  
A.7 Regulatory Compliance............................................................... A-3  
APPENDIX B  
APPENDIX C  
MODE SWITCH BANK SETTINGS  
C.1 Required Tools............................................................................C-1  
C.2 Removing the Chassis Cover .....................................................C-2  
C.2.1 Setting the Mode Switches .............................................C-4  
C.3 Installing Optional Fast Ethernet Interface Modules ...................C-7  
INDEX  
x
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
CHAPTER 1  
INTRODUCTION  
Welcome to the 2H23-50R/2H33-37R SmartSwitch 2100 User’s Guide.  
This guide provides the necessary documentation to install and operate  
the 2H23-50R and 2H33-37R SmartSwitch 2100 standalone devices and  
provides information concerning network requirements, installation,  
troubleshooting, and the use of Local Management.  
1.1  
USING THIS GUIDE  
Read through this guide completely to understand the 2H23-50R and  
2H33-37R capabilities and Local Management functions. A general  
working knowledge of Ethernet and IEEE 802.3 type data  
communications networks and their physical layer components is helpful  
when using this device.  
Unless it is noted differently, the information in this guide  
NOTE  
2100 devices. The 2H23-50R and 2H33-37R are also referred  
to as the “device”.  
1.2  
This guide is organized as follows:  
Chapter 1, Introduction, outlines the contents of this manual and briefly  
describes the 2H23-50R and 2H33-37R features. Directions about how to  
Chapter 2, Network Requirements, explains the network requirements  
Chapter 3, Installation, provides instructions on how to install the  
2H23-50R and 2H33-37R and connect networks to those devices.  
Chapter 4, Troubleshooting, describes the function of the LANVIEW  
LEDs, which can help to quickly diagnose network/operational problems.  
Chapter 5, Local Management, describes how to access and use Local  
Management to configure and manage the 2H23-50R and 2H33-37R.  
2H23-50R/2H33-37R User’s Guide  
1-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
           
Chapter 1: Introduction  
operating specifications, connector pinouts, environmental requirements,  
and physical properties.  
Appendix B, FE-100TX, FE-100FX, and FE-100F3 Specifications,  
contains information about FE-100TX pinouts and information  
concerning cable types used with the FE-100FX and FE-100F3.  
describes how to install optional Fast Ethernet Interface Modules and how  
to set the Mode Switch.  
1.3  
OVERVIEW  
The following provides an overview of the 2H23-50R and 2H33-37R  
(Figure 1-1) devices:  
Interface  
MicroLAN  
Receive (RX)  
Transmit (TX)  
LEDs  
Port LINK/Speed LEDs  
Optional Fast Ethernet  
Interface Module  
Slots 5 & 6  
(12 ports/MicroLAN  
)
CONN  
CONN  
CONN  
CONN  
4
3
2
1
CONN  
CONN  
CONN  
CONN  
4
3
2
1
1
1
12  
12  
1
1
12  
12  
100  
10  
CONN 3  
CONN 1  
CONN 4  
CONN 2  
PWR  
CPU  
RESET  
2H23-50R  
5
6
COM  
System LEDs  
COM Port  
RESET Button  
MicroLANs  
(CONN 1 - 4)  
Receive (RX)  
Transmit (TX)  
LEDs  
Interface  
MicroLAN  
Receive (RX)  
Transmit (TX)  
LEDs  
Port LINK/Speed LEDs  
(12 ports/MicroLAN  
)
Optional HSIM Slot  
CONN  
CONN  
CONN  
3
2
1
CONN  
CONN  
CONN  
3
2
1
1
1
12  
100  
10  
CONN 3  
CONN 1  
12  
1
12  
PWR  
CPU  
RESET  
2H33-37R  
CONN 2  
COM  
System LEDs  
COM Port  
RESET Button  
MicroLANs  
(CONN 1 - 3)  
22862-01  
Figure 1-1 2H23-50R and 2H33-37R  
1-2  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Overview  
The 2H23-50R is a high speed network repeater/switch device that  
provides four Ethernet networks and four Fast Ethernet networks (RJ21  
MicroLANs, CONN 1 through CONN 4) and two slots (5 and 6) for  
optional Fast Ethernet Interface Modules. The RJ21 connectors each  
consist of 12 repeater ports that are able to reside on the Ethernet  
(10 Mbps) or the Fast Ethernet (100 Mbps) network. Each Ethernet and  
Fast Ethernet network supports 802.1D switching (bridging), Cabletron  
Systems SecureFast Switching Virtual Network technology and IEEE  
802.1Q Port Based Virtual Local Area Networks (VLANs). Slots 5 and 6  
support Fast Ethernet Interface Modules to provide uplinks to  
100BASE-TX or 100BASE-FX Fast Ethernet Networks.  
The 2H33-37R is a high speed network repeater/switch device that  
provides three Ethernet networks and three Fast Ethernet networks (RJ21  
MicroLANs, CONN 1 through CONN 3) and one slot for an optional  
High Speed Interface Module (HSIM). The RJ21 connectors each consist  
of 12 repeater ports that are able to reside on the Ethernet (10 Mbps) or  
the Fast Ethernet (100 Mbps) network. Each Ethernet and Fast Ethernet  
network supports 802.1D switching (bridging), Cabletron Systems  
SecureFast Switching Virtual Network technology and IEEE 802.1Q Port  
Based Virtual Local Area Networks (VLANs). The 2H33-37R can be  
equipped with an optional HSIM to provide additional connectivity to  
other high speed networking technologies such as Asynchronous Transfer  
Mode (ATM), Fiber Distributed Data Interface (FDDI), and Wide Area  
Network (WAN).  
The device may be used as a tabletop unit or can be installed in a standard  
19-inch rack using the supplied rack mounting hardware.  
The 2H23-50R and 2H33-37R have two power supplies with automatic  
voltage sensing that allows operation using 100–125 or 200–240 Vac,  
50/60 Hz. The power supplies load share 50% (+/-5%) of the power  
required by the device. If one power supply fails, the remaining power  
supply assumes the entire load of the device without interruption to  
network traffic. Each power supply module supports its own ac input  
connection, which allows the user to connect each power supply to a  
different ac power circuit.  
2H23-50R/2H33-37R User’s Guide  
1-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 1: Introduction  
1.3.1  
Connectivity  
The 2H23-50R or 2H33-37R connect to Ethernet/Fast Ethernet networks  
or workstations through RJ21 ports on the front panel. Each port supports  
a 25-pair cable at lengths up to 100 meters (each pair must be Category 5  
compliant with an impedance of 85 to 111 ohms). The ports are IEEE  
802.3 10BASE-T and IEEE 802.3u 100BASE-T compliant.  
The 2H23-50R has two front panel slots (5 and 6) for optional Fast  
Ethernet Interface Modules to support an uplink to Fast Ethernet  
backbones or a high speed connection to a local server.  
The 2H33-37R has a slot for an optional HSIM to provide additional  
connectivity to high speed networking technologies such as ATM, FDDI,  
and WANs.  
Cables available for 100BASE-TX operation include:  
180° angle connector (straight-through RJ2-to-RJ21)  
180° RJ21-to-RJ45 connector  
120° angle connector with the same options  
1.3.2  
Full Duplex Switched Ethernet  
The optional Fast Ethernet Interface Modules for the 2H23-50R can be  
configured to operate in Full Duplex Switched Ethernet mode, which  
provides 200 Mbps of bandwidth.  
1.3.3  
Auto-Negotiation  
The repeater ports and Fast Ethernet Interface Modules can auto-negotiate  
the type of connection required to provide a link to another device.  
During Auto-Negotiation, two devices automatically exchange  
information “telling” each other what their operating capabilities are. The  
Auto-Negotiation feature targets the maximum capabilities that can be  
reached between the two devices. For example, an FE-100TX Fast  
Ethernet Interface Module in a 2H23-50R can adjust to 100 Mbps when  
the device on the other end of the connection can also adjust to 100 Mbps.  
If the device on the other end of the connection can only operate at  
10 Mbps, then the FE-100TX simply adjusts to 10 Mbps operation.  
1-4  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
Overview  
When Auto-Negotiation is supported at both ends of a link, the two  
devices dynamically adjust to full or half duplex operation based on the  
maximum capability that can be reached between the two devices. If the  
device connected to the FE-100TX cannot auto-negotiate, the FE-100TX  
Fast Ethernet Interface Module operates according to the capabilities of  
the other device.  
1.3.4  
SmartTrunking  
SmartTrunk, also referred to as SmartTrunking, is Cabletron Systems’  
terminology for load balancing or load sharing. SmartTrunk technology  
provides an easy-to-implement mechanism to group, or aggregate,  
multiple physical links together to scale the backbone bandwidth beyond  
the limitations of a single link. All links are user-configurable so  
administrators can scale the backbone bandwidth by adding SmartTrunk  
links. The SmartTrunk benefits are as follows:  
All purchased bandwidth is used.  
Distributed, resilient links increase reliability and performance.  
Multiple technologies are supported within a single trunk for  
maximum flexibility.  
For more information about SmartTrunk, refer to the Cabletron Systems  
SmartTrunk User’s Guide.  
1.3.5  
Runtime IP Address Discovery  
This feature enables the 2H23-50R or 2H33-37R (device) to  
automatically accept an IP address from a Boot Strap Protocol (BootP) or  
Reverse Address Resolution Protocol (RARP) server on the network into  
NVRAM without requiring a user to enter an IP address through Local  
Management.  
When the device is connected to the network and powered up, Runtime IP  
Address Discovery (RAD) checks the device for an IP address. If one has  
not yet been assigned (2H23-50R IP address set to 0.0.0.0), RAD checks  
to see if any of the device’s interfaces have a link. If so, RAD sends out  
RARP and BootP requests to obtain an IP address from a server on the  
network.  
2H23-50R/2H33-37R User’s Guide  
1-5  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
Chapter 1: Introduction  
The RAD requests start out at an interval of 1 second. The interval then  
doubles after every transmission until an interval of 300 seconds is  
reached. At this point, the interval remains at 300 seconds. The RAD  
requests continue until an IP address is received from a server, or an IP  
address is entered using Local Management.  
1.3.6  
Management  
Management of the 2H23-50R or 2H33-37R is accomplished using  
SNMP compliant management tools for in-band Local Management.  
Out-of-band Local Management is provided through the RJ45 COM port  
on the front panel using a VT100 terminal or a VT100 terminal emulator.  
In-band remote management is possible through any SNMP compliant  
Network Management Software.  
Local Management provides the ability to manage the 2H23-50R and  
2H33-37R and any of the optional Fast Ethernet Interface Modules  
installed in slots 5 and 6 of the 2H23-50R, or an optional High Speed  
Interface Module (HSIM) in a 2H33-37R.  
The associated HSIM user’s guide provides detailed information about  
the HSIM Local Management.  
1.3.7  
Switching Options  
The 2H23-50R and 2H33-37R provide 802.1D switching, 802.1Q  
switching or SecureFast Switching Virtual Network Services between all  
of the front panel interfaces including Fast Ethernet Interface Modules  
installed in a 2H23-50R or an HSIM installed in a 2H33-37R.  
IEEE 802.1Q switching and SecureFast switching allow for future  
migration to Virtual Network technologies without requiring the  
replacement of existing equipment.  
1-6  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
Optional Features  
1.3.8  
Standards Compatibility  
The 2H23-50R provides IEEE 802.1D Spanning Tree Algorithm (STA)  
support to enhance the overall reliability of the network and protect  
against “loop” conditions. The 2H23-50R also supports 100BASE-TX  
and 100BASE-FX Fast Ethernet standards and a wide variety of industry  
standard MIBs including RFC 1213 (MIB II), RFC 1757 (RMON),  
RFC 1317 (RS232 MIB), RFC 1493 (Bridge MIB) and RFC 1354 (FIB  
MIB). A full suite of Cabletron Systems Enterprise MIBs provide a wide  
array of statistical information to enhance troubleshooting.  
1.3.9  
Year 2000 Compliant  
The 2H23-50R and 2H33-37R each have an internal clock that can  
maintain the current time and date beyond the year 1999.  
1.3.10 LANVIEW Diagnostic LEDs  
LANVIEW diagnostic LEDs serve as an important troubleshooting aid by  
providing an easy way to observe the status of individual ports and overall  
network operations.  
1.4  
OPTIONAL FEATURES  
Options for the 2H23-50R and 2H33-37R include the following:  
Fast Ethernet Interface Modules supported on 2H23-50R only  
High Speed Interface Modules supported on 2H33-37R only  
2H23-50R/2H33-37R User’s Guide  
1-7  
Download from Www.Somanuals.com. All Manuals Search And Download.  
         
Chapter 1: Introduction  
1.4.1  
Fast Ethernet Interface Modules  
Cabletron Systems provides Fast Ethernet Interface Modules to support  
uplinks to 100 Mbps Fast Ethernet backbones or high speed connections  
to local servers. The Fast Ethernet Interface Modules available for the  
2H23-50R are listed in Table 1-1.  
.
Table 1-1 Fast Ethernet Interface Modules  
P/N  
Description  
Application  
Supports Category 5 Unshielded Twisted Pair  
(UTP) cabling, which has an impedance of 85 to  
111 ohms, and type 1A Shielded Twisted Pair  
(STP) cabling.  
Uses RJ45  
connector  
FE-100TX  
Uses SC  
connector  
FE-100FX  
FE-100F3  
Supports multimode fiber optic cabling.  
Supports single mode fiber optic cabling.  
Uses SC  
connector  
1.4.2  
High Speed Interface Modules  
High Speed Interface Modules (HSIMs) are available from Cabletron  
Systems for additional connectivity to various networking technologies.  
The HSIMs available for the 2H33-37R are listed in the Release Notes  
shipped with the device.  
1-8  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Document Conventions  
1.5  
DOCUMENT CONVENTIONS  
The following conventions are used throughout this document:  
Note symbol. Calls the reader’s attention to any item of  
information that may be of special importance.  
NOTE  
Tip symbol. Conveys helpful hints concerning procedures or  
actions.  
TIP  
Caution symbol. Contains information essential to avoid  
damage to the equipment.  
!
CAUTION  
Electrical Hazard Warning symbol. Warns against an action  
that could result in personal injury or death due to an electrical  
hazard.  
Warning symbol. Warns against an action that could result in  
WARNING  
personal injury or death.  
2H23-50R/2H33-37R User’s Guide  
1-9  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Chapter 1: Introduction  
1.6  
GETTING HELP  
For additional support related to this device or document, contact the  
Cabletron Systems Global Call Center:  
World Wide Web  
Phone  
http://www.cabletron.com/  
(603) 332-9400  
Internet mail  
FTP  
ftp://ftp.cabletron.com/  
anonymous  
Login  
Password  
your email address  
To send comments or suggestions concerning this document, contact the  
Cabletron Systems Technical Writing Department via the following  
email address: [email protected]  
Make sure to include the document Part Number in the email message.  
Before calling the Cabletron Systems Global Call Center, have the  
following information ready:  
Your Cabletron Systems service contract number  
A description of the failure  
A description of any action(s) already taken to resolve the problem  
(e.g., changing mode switches, rebooting the unit, etc.)  
The serial and revision numbers of all involved Cabletron Systems  
products in the network  
A description of your network environment (layout, cable type, etc.)  
Network load and frame size at the time of trouble (if known)  
The device history (i.e., have you returned the device before, is this a  
recurring problem, etc.)  
Any previous Return Material Authorization (RMA) numbers  
1-10  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Related Manuals  
1.7  
RELATED MANUALS  
The following manuals may help to set up, control, and manage the  
2H23-50R and 2H33-37R:  
Cabletron Systems HSIM-A6DP User’s Guide  
Cabletron Systems HSIM-F6 User’s Guide  
Cabletron Systems HSIM-FE6 User’s Guide  
Cabletron Systems HSIM-W87 User’s Guide  
Cabletron Systems HSIM-G01/G09 User’s Guide  
Cabletron Systems Ethernet Technology Guide  
Cabletron Systems Cabling Guide  
Cabletron Systems Port Based VLAN User’s Guide  
Cabletron Systems SmartTrunk User’s Guide  
These manuals can be obtained from the World Wide Web in Adobe  
Acrobat Portable Document Format (PDF) at the following site:  
http://www.cabletron.com/  
All documentation for the Cabletron Systems SecureFast VLAN  
Manager software is contained on the VLAN Manager  
NOTE  
CD-ROM.  
Documents for the Cabletron Systems HSIM-W6 and  
HSIM-W84 devices are contained on the QuickSET CD-ROM  
and are also available on the World Wide Web at:  
http://www.cabletron.com/  
2H23-50R/2H33-37R User’s Guide  
1-11  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Chapter 1: Introduction  
1-12  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
CHAPTER 2  
NETWORK REQUIREMENTS  
This chapter contains networking guidelines. Before installing and using  
the 2H23-50R or an optional Fast Ethernet Interface Module, review the  
following:  
SmartTrunk (Section 2.1)  
10BASE-T Twisted Pair Network (Section 2.2)  
100BASE-TX Twisted Pair Network (Section 2.3)  
100BASE-FX Fiber Optic Network (Section 2.4)  
The network installation must meet the guidelines to ensure satisfactory  
performance of this equipment. Failure to follow the guidelines may  
produce poor network performance.  
The Cabletron Systems Cabling Guide and SmartTrunk User’s  
Guide, referred to in the following sections, is located on the  
NOTE  
Cabletron Systems World Wide Web  
site: http://www.cabletron.com/  
2.1  
SmartTrunk  
To connect the 2H23-50R or 2H33-37R into a network so that it can take  
advantage of the SmartTrunk feature, there are certain rules concerning  
port connections and configurations that must be followed for proper  
operation. Refer to the Cabletron Systems SmartTrunk User’s Guide for  
additional information.  
2.2  
10BASE-T NETWORK  
When connecting a 10BASE-T segment to any ports of CONN 1 through  
CONN 4 (2H23-50R) or CONN 1 through CONN 3 (2H33-37R), ensure  
that the network meets the IEEE 802.3 Ethernet network requirements for  
10BASE-T. Refer to the Cabletron Systems Cabling Guide for details.  
2H23-50R/2H33-37R User’s Guide  
2-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
               
Chapter 2: Network Requirements  
2.3  
100BASE-TX NETWORK  
When connecting a 100BASE-T segment to any ports of CONN 1  
through CONN 4 (2H23-50R), CONN 1 through CONN 3 (2H33-37R),  
or an FE-100TX installed in slot 5 or 6 of the 2H23-50R, the device at the  
other end of the twisted pair segment must meet IEEE 802.3u  
100BASE-TX Fast Ethernet network requirements for the devices to  
operate at 100 Mbps. Refer to the Cabletron Systems Cabling Guide for  
details.  
The 2H23-50R with an FE-100TX installed is capable of  
operating at either 10 or 100 Mbps. The FE-100TX can  
NOTE  
automatically sense the speed of the other device and adjust  
its speed accordingly.  
If operating at 100 Mbps, each pair in a cable must be  
Category 5 compliant with an impedance of 85 to 111 ohms.  
2.4  
100BASE-FX FIBER OPTIC NETWORK  
Slots 5 and 6 of the 2H23-50R can also support the Cabletron Systems  
FE-100FX and FE-100F3 fiber optic interface modules. The device at the  
other end of the fiber optic segment must meet the 100BASE-FX Fast  
Ethernet network requirements to operate at 100 Mbps. Refer to the  
Cabletron Systems Cabling Guide for details.  
Multimode Fiber Optic Cable Length  
The maximum multimode fiber optic cable length of a 100BASE-FX  
segment is covered in the Cabletron Systems Cabling Guide.  
Single Mode Fiber Cable Lengths  
The maximum single mode fiber optic length of a 100BASE-FX segment  
may be no more than 5 km between Data Terminal Equipment (DTE to  
DTE) in half duplex mode or 20 km (DTE to DTE) in full duplex mode.  
2-2  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
CHAPTER 3  
INSTALLATION  
Only qualified personnel should install the 2H23-50R or  
2H33-37R.  
2H33-37R. Follow the order of the sections listed below to ensure a  
proper installation.  
Required Tools (Section 3.1)  
Unpacking the Device (Section 3.2)  
Installing Options (Section 3.3)  
Installing the Device (on a shelf or tabletop, or into a standard rack)  
(Section 3.4)  
Connecting to the Network (Section 3.5)  
Completing the Installation (Section 3.6)  
3.1  
REQUIRED TOOLS  
A Phillips screwdriver is required to install the 2H23-50R and 2H33-37R.  
2H23-50R/2H33-37R User’s Guide  
3-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
           
Chapter 3: Installation  
3.2  
UNPACKING THE DEVICE  
To unpack the device and verify the contents of the shipment, proceed as  
follows:  
1. Open the carton and remove the packing material.  
2. Verify the contents of the carton as listed in Table 3-1.  
Table 3-1 Contents of Carton  
Item  
Quantity  
2H23-50R or 2H33-37R  
Antistatic Wrist Strap  
Console Cable Kit  
Rackmount Kit  
1
1
1
1
1
1
2
1
Strain-Relief Bracket  
Release Notes  
Power Cord  
Manual Accessory Kit  
3. Remove the black and yellow tape seal on the non-conductive bag to  
remove the device.  
4. Perform a visual inspection of the device for any signs of physical  
Cabletron Systems Global Call Center as described in Section 1.6.  
3.3  
INSTALLING OPTIONS  
Install any optional equipment before proceeding to  
Section 3.4.  
NOTE  
If the 2H23-50R is to be installed with an optional Fast Ethernet Interface  
Module, refer to Appendix C for installation instructions. If the  
2H33-37R is to be installed with an optional HSIM, refer to the  
installation instructions in the associated HSIM user’s guide.  
3-2  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
         
Installing the Device  
3.4  
INSTALLING THE DEVICE  
The 2H23-50R and 2H33-37R may be installed on a tabletop, shelf, or in  
a 19-inch rack. Section 3.4.1 describes a tabletop or shelf installation, and  
Section 3.4.2 describes the rackmount installation.  
To prevent possible personal injury and/or damage to the unit,  
do NOT connect power to the device until instructed to do so.  
3.4.1  
Tabletop or Shelf Installation  
The following two subsections provide guidelines for installation on a  
tabletop or shelf.  
Guidelines for Tabletop and Shelf Installations  
Tabletop and shelf installations must be within reach of the network  
cabling and meet the requirements listed below:  
Locate the 2H23-50R or 2H33-37R within seven feet of an  
appropriately grounded power receptacle that meets the power supply  
requirements listed in Appendix A.  
In a shelf installation, ensure that the shelf can support 13.6 kg (30 lb)  
of static weight for each device.  
Maintain a temperature between 5°C (41°F) and 40°C (104°F) at the  
installation site with fluctuations of less than 10°C (18°F) per hour.  
Maintain a 2-inch clearance from the left, right, and rear sides of the  
device to provide adequate ventilation.  
Installation  
For a tabletop or shelf installation, locate the device within seven feet of  
its power source and with an unrestricted free surface area as shown in  
Figure 3-1. Proceed to Section 3.4.3 for power connection instructions.  
To ensure proper ventilation and prevent overheating, leave a  
minimum clearance space of 5.1 cm (2.0 in) at the left, right,  
and rear of the device.  
!
CAUTION  
2H23-50R/2H33-37R User’s Guide  
3-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
Chapter 3: Installation  
C
B
CONN  
CONN  
CONN  
CONN  
4
3
2
1
CONN  
CONN  
CONN  
CONN  
4
3
2
1
1
1
12  
12  
1
1
12  
10  
100  
CONN  
CONN  
3
1
CONN  
CONN  
4
2
12  
PWR  
CPU  
A
RESET  
2H23-50R  
5
6
COM  
D
A = 15 cm (6 in)  
B = 57.2 cm (22.5 in)  
C = 53 cm (21 in)  
D = 213 cm (7 ft)  
22861-06  
Figure 3-1 Tabletop or Shelf Installation  
3.4.2  
Rackmount Installation  
To install the device in a 19-inch rack, note that the device is shipped with  
a rackmount kit containing the rackmount brackets, mounting screws, and  
a strain-relief bracket for cable management.  
Guidelines for the Rackmount Installation  
The installation site must be within reach of the network cabling and meet  
the requirements listed below:  
Ensure that an appropriate grounded power receptacle is located  
within seven feet of the location.  
Maintain a temperature of between 5°C (41°F) and 40°C (104°F) at  
the installation site with fluctuations of less than 10°C (18°F) per hour.  
To ensure proper ventilation and prevent overheating, leave a  
minimum clearance space of 5.1 cm (2.0 in) at the left, right,  
and rear of the device.  
!
CAUTION  
Before installing the device into a rack, ensure that the rack  
supports the device(s) without compromising the stability of the  
rack. Otherwise, personal injury and/or equipment damage  
may result.  
WARNING  
3-4  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Installing the Device  
Installation  
Rack mounting the 2H23-50R or 2H33-37R involves the following:  
Attaching the strain-relief bracket  
Rack mounting the device (attaching the mounting brackets and  
fastening the device to the rack)  
Attaching the Strain-Relief Bracket  
Attach the strain-relief bracket to the front of the device as follows:  
1. Locate the strain-relief bracket and four 8-32 x 3/8-inch pan-head  
screws in the rackmount kit.  
Do not attempt to attach the strain-relief bracket with screws  
other than the 8-32 x 3/8-inch screws included with the  
2H23-50R. Use of longer screws will damage the unit.  
!
CAUTION  
2. Attach the strain-relief bracket to the bottom of the device using the  
four 8-32 x 3/8-inch pan-head screws (Figure 3-2).  
Screws (4)  
Strain-Relief Bracket  
C O M  
6
5
C O N N  
2
C O N N  
1
2 H 2 3 - 5 0 R  
R E S E T  
C P U  
P W R  
1 2  
1 2  
1
1
1 2  
1 2  
1
1
1 0 0  
1 0  
C O N N  
C O N N  
C O N N  
C O N N  
1
2
3
4
C O N N  
C O N N  
C O N N  
C O N N  
1
2
3
4
22862-47  
Figure 3-2 Attaching the Strain-Relief Bracket  
2H23-50R/2H33-37R User’s Guide  
3-5  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Chapter 3: Installation  
Rack Mounting the Device  
rack:  
1. Remove and discard the four cover screws (two from each side)  
located along the front edges of each side of the device.  
2. Locate the four 6-32 x 3/8-inch flathead cover replacement screws in  
the rackmount kit. Use these screws to attach the rackmount brackets  
to the device as shown in Figure 3-3.  
Rackmount Brackets (2)  
CONN  
CONN  
CONN  
CONN  
4
3
2
1
CONN  
CONN  
CONN  
CONN  
4
3
2
1
1
1
12  
12  
1
1
12  
12  
10  
100  
CONN  
CONN  
3
1
CONN  
CONN  
4
2
PWR  
CPU  
RESET  
2H23-50R  
5
6
COM  
Screws (4)  
Figure 3-3 Installing the Rackmount Brackets  
22861-04  
3. With the mounting brackets installed, position the device between the  
vertical frame members of the 19-inch rack and fasten it securely with  
user supplied mounting screws as shown in Figure 3-4.  
19-Inch Rack  
CONN  
CONN  
CONN  
CONN  
4
3
2
1
CONN  
CONN  
CONN  
CONN  
4
3
2
1
1
1
12  
12  
1
1
12  
12  
10  
100  
CONN  
CONN  
3
1
CONN  
CONN  
4
2
PWR  
CPU  
RESET  
2H23-50R  
5
6
COM  
Screws (4)  
22861-03  
Figure 3-4 Installing the Device in a Rack  
3-6  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Installing the Device  
3.4.3  
Connecting Power to the Device  
The 2H23-50R and 2H33-37R have two power supplies. The  
power supplies have automatic voltage sensing that allows  
connection to power sources ranging from 100–125 Vac, 2.0 A  
or 200–240 Vac, 1.0 A, 50/60 Hz.  
NOTE  
To connect the device to the power sources, proceed as follows:  
1. Plug each power cord into a grounded wall outlet, see Figure 3-5. To  
take advantage of the load sharing and redundancy capabilities, each  
power cord must be plugged into a dedicated ac outlet. The POWER  
LED turns on (green) and the CPU LED turns on (green) briefly.  
Primary  
Redundant  
19601-62  
Figure 3-5 Rear View, 2H23-50R or 2H33-37R  
It takes approximately one minute for the device to boot up.  
NOTE  
2. Observe the LANVIEW LEDs. After a successful boot, the CPU LED  
turns on (green). If the PWR LED is not green after one minute and  
turns amber, there is no power redundancy. Check the power cord  
connections and the power source. If there are no problems with the  
power cord connections or power source and the CPU LED is still not  
green, contact the Cabletron Systems Global Call Center. Refer to  
Section 1.6 for details.  
2H23-50R/2H33-37R User’s Guide  
3-7  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Chapter 3: Installation  
3.5  
CONNECTING TO THE NETWORK  
This section provides the procedures for connecting twisted pair and fiber  
optic segments from the network or other devices to the 2H23-50R or  
2H33-37R.  
If the device is being installed in a network using  
SmartTrunking, there are rules concerning the cable  
NOTE  
connections and port configurations that must be followed for  
SmartTrunking to operate properly. Before connecting the  
cables, refer to the Cabletron Systems SmartTrunk User’s  
Guide for the configuration information.  
CONN 1 through CONN 4 (2H23-50R) or CONN 1 through CONN 3  
(2H33-37R) each have 12 UTP connections via a 50-pin RJ21 connector.  
If a port is to operate at 100 Mbps, each pair in a cable must be  
Category 5 compliant with an impedance of 85 to 111 ohms.  
FE-100F3 Fast Ethernet Interface Modules.The FE-100TX has an RJ45  
connector for a UTP cable connection. The FE-100FX and FE-100F3  
have SC connectors for fiber optic cable connections.  
(2H23-50R) or CONN 1 through CONN 3 (2H33-37R), refer to  
Section 3.5.1.  
To make a twisted pair connection to an FE-100TX in slot 5 or 6 of a  
2H23-50R, refer to Section 3.5.2.  
To make a fiber optic cable connection to an FE-100FX or FE-100F3 in  
slot 5 or 6 of a 2H23-50R, refer to Section 3.5.3.  
Refer to the associated High Speed Interface Module user’s guide to make  
connections to an optional High Speed Interface Module installed in the  
HSIM slot of a 2H33-37R.  
3-8  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Connecting to the Network  
3.5.1  
Connecting Cables to CONN 1 Through 4  
The device uses RJ21 connectors for the cables connected to CONN 1  
through CONN 4 (2H23-50R) or CONN 1 through CONN 3 (2H33-37R).  
Each of the 12 repeater ports associated with each RJ21 connector have  
internal crossovers.  
To connect an RJ21, proceed as follows:  
1. Ensure that the device connected to the other end of the segment is  
powered on.  
2. If using an RJ21 straight connector, plug it into the appropriate RJ21  
port as shown in Figure 3-6.  
12  
1
CONN 4  
12  
6
1
5
CONN 2  
Screw  
RJ21  
Screw  
Link LED  
22862-10  
Figure 3-6 Straight Cable Connection  
3. Tighten the two screws on the RJ21 straight cable connector to secure  
it to the device.  
The cable pinouts for a 25-pair cable (RJ21) can be found in  
the Cabletron Systems Cabling Guide. Refer to Section 1.7 for  
NOTE  
details on how to obtain this document.  
2H23-50R/2H33-37R User’s Guide  
3-9  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Chapter 3: Installation  
4. Verify that a link exists on each twisted pair segment of the RJ21  
connector by checking that the port Link LEDs above the connector  
are on (flashing amber, blinking green, or solid green). If any of the  
Link LEDs are off, perform the following steps to check the associated  
twisted pair segments. The problem is resolved when the Link LED  
comes on.  
a. Verify that the device at the other end of the twisted pair segment  
is on and connected to the segment.  
b. Verify that the RJ21 connector associated with the twisted pair  
segment has the proper pinouts and check the cable for continuity.  
c. Check that the twisted pair connection meets the dB loss and cable  
specifications outlined in Chapter 2.  
If a link is not established, contact the Cabletron Systems Global Call  
Center. Refer to Section 1.6 for details.  
5. Repeat steps 1 through 5 above, until all connections have been made.  
3.5.2  
Connecting a UTP Segment to the FE-100TX  
To ensure proper operation, use only Category 5 Unshielded  
and 111 ohms.  
NOTE  
An FE-100TX installed in slot 5 and/or 6 of a 2H23-50R has an internal  
crossover switch. When connecting a workstation, use a straight-through  
cable and set the Fast Ethernet Interface Module crossover switch shown  
in Figure 3-7 to the crossed over position marked with X. When  
connecting networking devices, such as another bridge, repeater, or  
router, use a straight-through cable and set the Fast Ethernet Interface  
Module crossover switch shown in Figure 3-7 to the straight-through  
position (not crossed over), marked with =.  
3-10  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Connecting to the Network  
Position X  
(crossed over)  
Position =  
(not crossed over)  
1. RX+  
2. RX-  
3. TX+  
4. NC  
5. NC  
6. TX-  
7. NC  
8. NC  
5. NC  
6. RX-  
7. NC  
8. NC  
1. TX+  
2. TX-  
3. RX+  
4. NC  
x
=
10  
100  
FE-100TX  
16651_05  
Figure 3-7 FE-100TX Crossover Switch  
A schematic of a crossover cable is shown in Figure 3-8. If the wires do  
not cross over, use the switch on the FE-100TX to internally cross over  
the RJ45 port.  
TO  
TO  
10BASE-T Device Port  
RJ45 Port  
RX+  
RX+  
RX–  
1
2
1
2
RX–  
NOTE:  
RX+/RX– and TX+/TX–  
must share a common  
color pair.  
TX+  
TX–  
TX+  
TX–  
3
6
3
6
RJ45 to RJ45  
2251-31  
Figure 3-8 Cable Pinouts - RJ45 Crossover Cable  
Connect an FE-100TX to a twisted pair segment as follows:  
1. Ensure that the device connected to the other end of the segment is  
powered on.  
2H23-50R/2H33-37R User’s Guide  
3-11  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Chapter 3: Installation  
2. Connect the twisted pair segment to the module by inserting the RJ45  
connector on the twisted pair segment into the RJ45 port on the  
module shown in Figure 3-9.  
=
x
10  
100  
6
FE-100TX  
5
RX LED TX LED  
RJ45  
22861-14  
Figure 3-9 FE100-TX Port Connection  
3. Verify that a link exists by checking that the port RX LED is on  
(flashing amber, blinking green, or solid green). If the RX LED is off  
and the TX LED is not blinking amber, perform the following steps  
until the RX LED is on:  
a. Verify that the 100BASE-TX device at the other end of the twisted  
pair segment is powered up.  
b. Verify that the RJ45 connector on the twisted pair segment has the  
proper pinouts.  
c. Check the cable for continuity.  
d. Make sure that the twisted pair connection meets the cable  
specifications outlined in Section 2.2.  
e. Confirm that the crossover switch is in the correct position.  
If a link is not established, contact the Cabletron Systems Global Call  
Center. Refer to Section 1.6 for details.  
3-12  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Connecting to the Network  
3.5.3  
Connecting a Fiber Optic Segment to the  
FE-100FX and FE-100F3  
The FE-100FX and FE-100F3 have SC style network ports. See  
Figure 3-10. Cabletron Systems offers optional fiber optic cables that use  
SC style connectors. The ST connectors are keyed to ensure proper  
crossover of the transmit and receive fibers.  
An odd number of crossovers (preferably one) must be  
maintained between devices so that the transmit port of one  
NOTES  
device is connected to the receive port of the other device and  
vice versa.  
If the fiber optic cable being used has SC style connectors that  
do not resemble MIC style connectors, or has SC connectors  
on one end and a different type on the other, such as ST  
connectors, ensure that the proper crossing over occurs.  
Fiber Optic Network Connection  
1. Remove the protective plastic covers from the fiber optic ports on the  
applicable port on the module and from the ends of the connectors.  
The FE-100F3 uses Class 1 lasers. Do not use optical  
instruments to view the laser output. The use of optical  
instruments to view laser output increases eye hazard. When  
viewing the output optical port, power must be removed from  
the network adapter.  
!
CAUTION  
Do not touch the ends of the fiber optic strands, and do not let  
the ends come in contact with dust, dirt, or other contaminants.  
Contamination of the ends causes problems in data  
transmissions. If the ends become contaminated, blow the  
surfaces clean with a canned duster. A fiber port cleaning swab  
saturated with optical-grade isopropyl alcohol may also be used  
to clean the fiber optic ends.  
!
CAUTION  
2. Insert the SC connector at one end of the fiber optic cable into the  
FE-100FX or FE-100F3 installed in the 2H23-50R. See Figure 3-10.  
2H23-50R/2H33-37R User’s Guide  
3-13  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Chapter 3: Installation  
3. At the other end of the fiber optic cable, attach the SC connector to the  
other device.  
6
5
TX LED  
RX LED  
SC Connector  
22861-34  
Figure 3-10 Fiber Optic Cable Connection  
4. Verify that a link exists by checking that the port RX LED is on  
(flashing amber, blinking green, or solid green). If the RX LED is off  
and the TX LED is not blinking amber, perform the following steps  
until the RX LED is on:  
the link.  
port on the 2H23-50R and the fiber optic device at the other end  
of the fiber optic link segment.  
c. Verify that the fiber connection meets the dB loss specifications  
outlined in Section 2.4.  
If a link has not been established, contact the Cabletron Systems Global  
Call Center. Refer to Section 1.6 for details.  
3-14  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Completing the Installation  
3.6  
COMPLETING THE INSTALLATION  
Modules and HSIM as appropriate, and making the connections to the  
network, proceed as follows:  
1. Secure the cables by running the cables along the strain-relief bracket  
and tying them to the strain-relief bracket using cable ties.  
2. The 2H23-50R is now ready to be set up through Local Management.  
Refer to Chapter 5, Local Management, for information on how to  
access and use Local Management to configure the 2H23-50R.  
2H23-50R/2H33-37R User’s Guide  
3-15  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Chapter 3: Installation  
3-16  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
(Section 4.1)  
The FE-100TX LED (Section 4.2)  
Troubleshooting checklist for network and device operational  
problems (Section 4.3)  
Using the RESET button (Section 4.4)  
4.1  
USING LANVIEW  
The 2H23-50R and 2H33-37R use Cabletron Systems built-in visual  
LANVIEW LEDs, shown in Figure 4-1 and Figure 4-2, allow quick  
observation of the network status to aid in diagnosing network problems.  
Refer to Table 4-1 for a description of the LEDs.  
For a functional description of the LANVIEW LED on the optional Fast  
Ethernet Interface Module (FE-100TX) that can be installed in a  
2H23-50R, refer to Section 4.2.  
For a functional description of the LANVIEW LED on an optional HSIM  
installed in a 2H33-37R, refer to the user’s guide for that HSIM.  
TX  
RX  
Link Speed  
TX  
RX  
CONN 4  
CONN 4  
CONN 3  
CONN 2  
CONN 1  
1
CONN 3  
CONN 2  
CONN 1  
100  
10  
CONN 3  
1
PWR  
CPU  
RESET  
CONN 1  
2H23-50R  
6
COM  
RX  
TX  
PWR  
CPU  
Fast Ethernet  
Interface Module  
22862-36  
Figure 4-1 LANVIEW LEDs (2H23-50R)  
2H23-50R/2H33-37R User’s Guide  
4-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
             
Chapter 4: Troubleshooting  
TX  
RX  
Link Speed  
TX  
RX  
1
CONN 3  
CONN 3  
CONN 2  
CONN 1  
CONN 2  
CONN 1  
100  
10  
CONN 3  
1
PWR  
CPU  
RESET  
CONN 1  
2H33-37R  
COM  
PWR  
2286-36A  
CPU  
Figure 4-2 LANVIEW LEDs (2H33-37R)  
The terms flashing, blinking, and solid used in the following  
tables indicate the following:  
NOTE  
Flashing indicates an LED flashing randomly.  
Blinking indicates an LED is flashing at a steady rate  
(approximately 50% on, 50% off).  
Solid indicates a steady LED light. No pulsing.  
4-2  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Using LANVIEW  
Table 4-1 LANVIEW LEDs  
State Recommended Action  
No action.  
LED  
Color  
PWR  
Green Functional. Power  
supplies operating  
normally.  
Amber Indicates loss of power 1.Ensure that the power cords  
supply redundancy.  
are plugged in correctly and  
that there is power at the  
power source.  
2.If the LED remains amber,  
contact the Cabletron  
Systems Global Call Center.  
CPU  
Off  
Power off.  
Power up device.  
Red  
Blinking. Hardware  
Contact the Cabletron  
failure has occurred.  
Systems Global Call Center.  
Solid. Resetting,  
No action.  
normal power up reset.  
Amber Blinking. Crippled.  
Contact the Cabletron  
Systems Global Call Center.  
Solid. Testing.  
No action.  
No action.  
No action.  
Green Solid. Functional.  
Amber Booting. Blinks amber  
and  
and green while  
Green booting.  
Interface  
RX  
(Receive)  
of  
CONN 1–  
CONN 4  
and Ports 5  
and 6  
Off No link. No activity.  
No error.  
Port enabled or  
disabled.  
Green Solid. Port enabled,  
No error.  
No error.  
No error.  
link, no activity.  
Blinking. Port  
disabled, link.  
or  
Amber Flashing. Port  
CONN 1–  
CONN 3  
(2H23-50R)  
enabled, link, activity.  
Red  
Diagnostic failure.  
Contact the Cabletron  
Systems Global Call Center  
for help.  
2H23-50R/2H33-37R User’s Guide  
4-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Chapter 4: Troubleshooting  
Table 4-1 LANVIEW LEDs (Continued)  
Color State Recommended Action  
Off  
LED  
Interface  
TX  
(Transmit)  
of  
CONN 1–  
CONN 4  
and Ports 5  
and 6  
Port enabled, and no  
activity.  
1.Ensure that the STA is  
enabled and that there is a  
valid link.  
Should flash green  
every two seconds  
indicating BPDUs  
being sent if STA is  
enabled and there is a  
valid link.  
2.Contact the Cabletron  
Systems Global Call Center  
for help.  
(2H23-50R)  
or  
CONN 1 –  
CONN 3  
(2H33-37R)  
Green Flashing. Indicates  
activity. Rate indicates  
data rate.  
No action.  
Amber Blinking. Port in  
standby.  
1.Ensure that the port is not  
disabled.  
Port may be disabled  
due to Spanning Tree.  
2.Contact the Cabletron  
Systems Global Call Center  
for help.  
Red  
Flashing. Indicates  
No action.  
collision rate.  
Solid. Diagnostic  
failure.  
Contact the Cabletron  
Systems Global Call Center  
for help.  
LINK  
Off  
No link.  
No action.  
No action.  
Ports of  
CONN 1–  
CONN 4  
(2H23-50R)  
or  
Green Solid. A link is  
established with the  
device connected to  
the port.  
Flashing. Link  
established, but  
administratively  
disabled.  
No action.  
No action.  
CONN 1 –  
CONN 3  
(2H33-37R)  
Amber Flashing. Link  
established, receive  
activity.  
4-4  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
FE-100TX LED  
Table 4-1 LANVIEW LEDs (Continued)  
LED  
Color  
State  
Recommended Action  
No action.  
Speed  
Offand Port is operating at  
Ports of  
CONN 1 –  
CONN 4  
LINK  
LED is  
Green  
10 Mbps.  
(2H23-50R) or  
or  
Amber  
CONN 1 –  
CONN 3  
(2H33-37R)  
Speed  
Green Port is operating at  
No action.  
Ports of  
CONN 1 –  
CONN 4  
and  
LINK  
LED is  
100 Mbps.  
(2H23-50R) Green  
or  
or  
CONN 1 –  
CONN 3  
(2H33-37R)  
Amber  
4.2  
FE-100TX LED  
The optional FE-100TX has one LED labeled 10/100. The 10/100 LED  
together with the RX LED allows the user to determine the link status and  
the operating speed of the Fast Ethernet Interface Module. The 10/100  
LED and the Receive (RX) LED are shown in Figure 4-3.  
Table 4-2 and Table 4-3 provide a functional description of the 10/100  
LED when the RX LED is on or off, respectively.  
10  
LED  
100  
x
=
10  
Receive  
(RX) LED  
100  
FE-100TX  
5
6
22861-41  
Figure 4-3 FE-100TX LED  
2H23-50R/2H33-37R User’s Guide  
4-5  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Chapter 4: Troubleshooting  
A link exists if the associated port (5 or 6) RX LED is on.  
NOTE  
Table 4-2 10/100 LED Indications When RX LED Is On  
LED  
Color  
Indication  
10/100  
Off  
FE-100TX is operating at 10 Mbps.  
FE-100TX is operating at 100 Mbps.  
Green  
No link exists if the associated port (5 or 6) RX LED is off.  
NOTE  
Table 4-3 10/100 LED Indications When RX LED Is Off  
LED  
Color  
Indication  
10/100  
Off  
No link or no cable attached. FE-100TX  
forced to 10 Mbps operation, or is  
manually set to “auto-negotiate” mode.  
Green  
No link or no cable attached. FE-100TX is  
forced to 100 Mbps operation.  
4-6  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Troubleshooting Checklist  
4.3  
TROUBLESHOOTING CHECKLIST  
If the 2H23-50R is not working properly, refer to Table 4-4 for a checklist  
of possible problems, causes, and recommended actions to resolve the  
problem.  
Table 4-4 Troubleshooting Checklist  
Problem  
Possible Cause  
Recommended Action  
All LEDs are OFF.  
Loss of power.  
Check for proper connection  
of the power cable and its  
access to a live outlet.  
Installed improperly.  
Autobaud is enabled.  
Check the installation.  
No Local  
Management  
Password screen.  
Press ENTER (RETURN)  
(may take up to four times).  
Terminal setup is not  
correct.  
Refer to Chapter 5 for proper  
setup procedures.  
Improper console cable  
used.  
Refer to Appendix A for  
proper console port pinouts.  
Cannot contact the  
2H23-50R from  
in-band  
Using incorrect  
Community Name.  
Refer to Chapter 5  
for Community Name setup.  
The device does not  
have an IP address  
assigned.  
Refer to Chapter 5 for IP  
address assignment  
procedure.  
management.  
Port is disabled.  
No link to device.  
Enable port.  
Check link to device.  
Port(s) goes into  
standby for no  
apparent reason.  
The device detected a  
loop condition.  
1.Review network design and  
delete unnecessary loops.  
2.Call the Cabletron Systems  
Global Call Center if the  
problem continues.  
User parameters (IP Mode switch (7), NVRAM 1.Reenter the lost  
address, Device and Reset, was changed  
Module name, etc.) sometime before either  
parameters as necessary.  
2.Call the Cabletron Systems  
Global Call Center if the  
problem continues.  
were lost when the  
2H23-50R power  
was cycled or the  
front panel RESET  
cycling power or  
pressing the RESET  
button causing the  
user-entered parameters  
button was pressed. to reset to factory default  
settings.  
2H23-50R/2H33-37R User’s Guide  
4-7  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Chapter 4: Troubleshooting  
4.4  
USING THE RESET BUTTON  
The RESET button shown in Figure 4-4 resets the 2H23-50R or  
2H33-37R processor.  
Pressing the RESET button resets the device, and all current  
switching being performed by the device is halted. A network  
downtime of up to two minutes will result from this action.  
!
CAUTION  
CONN 4  
CONN 3  
CONN 2  
CONN 1  
CONN 4  
CONN 3  
CONN 2  
CONN 1  
1
1
100  
10  
CONN 3  
CONN 1  
PWR  
CPU  
RESET  
2H23-50R  
COM  
RESET Button  
22861-37  
Figure 4-4 RESET Button  
To reset the 2H23-50R or 2H33-37R processor, press and release the  
RESET button. It takes approximately 45 seconds to complete the reset  
process.  
4-8  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
CHAPTER 5  
LOCAL MANAGEMENT  
This chapter explains how to set up a management terminal to access  
Local Management. It also explains how to use the Local Management  
screens and commands.  
5.1  
OVERVIEW  
Local Management consists of a series of screens that allow the  
management of the 2H23-50R or 2H33-37R. The screens allow the user  
to do the following tasks:  
Assign IP address and subnet mask.  
Select a default gateway.  
Control access by establishing community names.  
Download a new operation firmware image.  
Designate which Network Management Workstations receive SNMP  
traps from the device.  
View bridge and port statistics.  
Configure switch operations (802.1D, 802.1Q, or SecureFast  
Switching).  
Control the number of receive broadcasts that are switched out to the  
other interfaces.  
Clear NVRAM.  
There are three ways to access Local Management:  
Locally using a VT type terminal connected to the COM port of the  
2H23-50R or 2H33-37R.  
Remotely using a VT type terminal connected through a modem.  
In-band through a Telnet connection.  
2H23-50R/2H33-37R User’s Guide  
5-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
         
Chapter 5: Local Management  
5.2  
LOCAL MANAGEMENT KEYBOARD  
CONVENTIONS  
All key names appear as capital letters in this manual. Table 5-1 explains  
the keyboard conventions and the key functions that are used.  
Table 5-1 Keyboard Conventions  
Key  
Function  
These are selection keys that perform the same  
Local Management function. For example, “Press  
ENTER” means that you can press either ENTER  
or RETURN, unless this manual specifically  
instructs you otherwise.  
ENTER Key  
RETURN Key  
This key allows an escape from a Local  
Management screen without saving changes. For  
example, “Press ESC twice” means the ESC key  
must be pressed quickly two times.  
ESCAPE (ESC) Key  
These keys cycle through selections in some Local  
Management fields. Use the SPACE bar to cycle  
forward through selections and use BACKSPACE  
to cycle backward through selections.  
SPACE Bar  
BACKSPACE Key  
These are navigation keys. Use the UP-ARROW,  
DOWN-ARROW, LEFT-ARROW, and  
RIGHT-ARROW keys to move the screen cursor.  
For example, “Use the arrow keys” means to press  
whichever arrow key moves the cursor to the  
desired field on the Local Management screen.  
Arrow Keys  
This key decreases values from a Local  
Management increment field. For example, “Press  
[]” means to press the minus sign key.  
[] Key  
The DEL (Delete) key removes characters from a  
Local Management field. For example, “Press DEL”  
means to press the Delete key.  
DEL Key  
5-2  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Management Terminal Setup  
5.3  
MANAGEMENT TERMINAL SETUP  
Use one of the following systems to access Local Management:  
An IBM or compatible PC running a VT series emulation software  
package  
A Digital Equipment Corporation VT100 type terminal  
A VT type terminal running emulation programs for the Digital  
Equipment Corporation VT100 series  
A remote VT100 type terminal via a modem connection  
In-band via a Telnet connection  
2H23-50R/2H33-37R User’s Guide  
5-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Chapter 5: Local Management  
5.3.1  
Console Cable Connection  
Use the Console Cable Kit provided with the 2H23-50R or 2H33-37R to  
attach the management terminal to the 2H23-50R or 2H33-37R COM  
port as shown in Figure 5-1.  
Connect an IBM PC or compatible device, running the VT terminal  
emulation, to the 2H23-50R or 2H33-37R as follows:  
1. Connect the RJ45 connector at one end of the cable (supplied in the  
kit) to the COM port on the 2H23-50R or 2H33-37R.  
2. Plug the RJ45 connector at the other end of the cable into the  
RJ45-to-DB9 adapter (supplied in the kit).  
3. Connect the RJ45-to-DB9 adapter to the communications port on  
the PC.  
CONN  
CONN  
CONN  
CONN  
4
3
2
1
CONN  
CONN  
CONN  
CONN  
4
3
2
1
1
1
12  
12  
1
1
12  
12  
10  
100  
CONN  
CONN  
3
1
CONN  
CONN  
4
2
PWR  
CPU  
RESE  
2H23-50R  
5
6
COM  
RJ45 COM Port  
UTP Cable  
with RJ45 Connectors  
RJ45-to-DB9  
PC Adapter  
PC  
22861-50  
Figure 5-1 Management Terminal Connection  
5-4  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Management Terminal Setup  
5.3.2  
Management Terminal Setup Parameters  
Table 5-2 lists the setup parameters for the local management terminal.  
Table 5-2 VT Terminal Setup  
Display Setup Menu  
Columns ->  
Controls ->  
Auto Wrap ->  
Scroll ->  
80 Columns  
Interpret Controls  
No Auto Wrap  
Jump Scroll  
Text Cursor ->  
Cursor Style ->  
Cursor  
Underline Cursor Style  
General Setup Menu  
Mode ->  
VT100, 7 Bit Controls  
VT100ID  
Normal Cursor Keys  
UPSS DEC Supplemental  
ID number ->  
Cursor Keys ->  
Power Supply ->  
Communications Setup Menu  
Transmit ->  
Receive ->  
XOFF ->  
2400, 4800, 9600, 19200  
Receive=Transmit  
XOFF at 64  
Bits ->  
8 bits  
Parity ->  
No Parity  
Stop Bit ->  
Local Echo ->  
Port ->  
Transmit ->  
Auto Answerback ->  
1 Stop Bit  
No Local Echo  
DEC-423, Data Leads Only  
Limited Transmit  
No Auto Answerback  
Keyboard Setup Menu  
Keys ->  
Auto Repeat ->  
Keyclick ->  
Typewriter Keys  
any option  
any option  
Margin Bell ->  
Warning Bell ->  
Margin Bell  
Warning Bell  
2H23-50R/2H33-37R User’s Guide  
5-5  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Chapter 5: Local Management  
5.3.3  
Telnet Connections  
establish a Telnet session with Local Management from any TCP/IP  
2H33-37R require the community name passwords assigned through the  
SNMP Community Names screen.  
For information about setting the IP address, refer to Section 5.7, General  
Configuration Screen.  
For information about assigning community names, refer to Section 5.8,  
SNMP Community Names Screen.  
Refer to the instructions included with the Telnet application for  
information about establishing a Telnet session.  
5-6  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Management Terminal Setup  
5.3.4  
Monitoring an Uninterruptible Power Supply  
If the 2H23-50R or 2H33-37R is connected to an American Power  
Conversion (APC) Uninterruptible Power Supply (UPS) device for  
protection against the loss of power, a connection from the 2H23-50R or  
2H33-37R COM port to the UPS can be made to monitor the power status  
of the UPS. To use the COM port for this purpose, it must be reconfigured  
to support the UPS connection using the procedure described in  
Section 5.7.10, Configuring the COM Port. Refer to the UPS  
documentation for details on how to access the status information.  
The Console Cable Kit provided with the 2H23-50R or 2H33-37R is used  
to attach the UPS to the COM port as shown in Figure 5-2.  
To connect the UPS device to the COM port, proceed as follows:  
1. Connect the RJ45 connector at one end of the cable to the COM port.  
2. Plug the RJ45 connector at the other end of the cable into the  
RJ45-to-DB9 male (UPS) adapter.  
3. Connect the RJ45-to-DB9 male (UPS) adapter to the female DB9 port  
on the rear of the UPS device (see the particular UPS device’s user  
instructions for more specific information about the monitoring  
connection).  
CONN  
CONN  
CONN  
CONN  
4
3
2
1
CONN  
CONN  
CONN  
CONN  
4
3
2
1
1
1
12  
12  
1
1
12  
12  
10  
100  
CONN  
CONN  
3
1
CONN  
CONN  
4
2
PWR  
CPU  
RESE  
2H23-50R  
5
6
COM  
DB9 Port  
RJ45 COM Port  
UTP Cable  
with RJ45 Connectors  
UPS Device  
RJ45-to-DB9  
UPS Adapter  
22861-51  
Figure 5-2 Uninterruptible Power Supply (UPS) Connection  
2H23-50R/2H33-37R User’s Guide  
5-7  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Chapter 5: Local Management  
5.4  
ACCESSING LOCAL MANAGEMENT  
Access to Local Management is controlled through the Local  
Management Password screen shown in Figure 5-3. Whenever a  
connection is made to the 2H23-50R or 2H33-37R the Local  
Management Password screen displays. Before continuing, the user must  
enter a password (community name) which is compared to the previously  
stored passwords. The level of access allowed the user depends on the  
password. To set or change passwords, refer to Section 5.8. The following  
steps describe the procedure to access Local Management.  
1. Turn on the terminal. Press ENTER (this may take up to four times,  
because the COM port auto-senses the baud rate of the terminal) until  
the 2H23-50R or 2H33-37R Local Management Password screen  
displays. It is the automatic line speed seeking feature of the port that  
makes it necessary at times to press ENTER several times.  
Event Message Line  
2H23-50 LOCAL MANAGEMENT  
CABLETRON Systems, Incorporated  
P.O.Box 5005  
Rochester, NH 03866-5005 USA  
(603) 332-9400  
(c) Copyright CABLETRON Systems, Inc, 1998  
Device Serial Number:  
XXXXXXXXX  
XX  
Device Hardware Revision:  
Device Firmware Revision:  
Device BOOTPROM Revision:  
X.XX.XX  
X.XX.XX  
Enter Password:  
22861-12  
Figure 5-3 Local Management Password Screen  
2. Enter the Password and press ENTER. The default super-user access  
password is “public” or press ENTER.  
5-8  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Accessing Local Management  
The User’s password is one of the community names specified  
in the SNMP Community Names screen. Access to certain  
Local Management capabilities depends on the degree of  
access accorded that community name. Refer to Section 5.8.  
NOTE  
If an invalid password is entered, the terminal beeps and the  
cursor returns to the beginning of the password entry field.  
Entering a valid password causes the associated access level  
to display at the bottom of the screen and the Device Menu  
screen to displays.  
If no activity occurs for several minutes, the Local Management  
Password screen redisplays and the password must be  
reentered.  
5.4.1  
Navigating Local Management Screens  
The 2H23-50R or 2H33-37R Local Management application consists of a  
series of menu screens. Navigate through Local Management by selecting  
items from the menu screens.  
The 2H23-50R and 2H33-37R support three modes of switch operation.  
The switching modes are as follows:  
802.1Q Switching (port based VLAN switching)  
SecureFast VLAN (Cabletron Systems SecureFast switching)  
Depending on the Operational Mode set for the device, the hierarchy of  
the Local Management screens differs as shown in Figure 5-4, Figure 5-5  
and Figure 5-6. Refer to the appropriate figure that relates to the  
Operational Mode set for the device to see the applicable Local  
Management screen hierarchy.  
2H23-50R/2H33-37R User’s Guide  
5-9  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Chapter 5: Local Management  
\
Device  
Configuration  
Menu  
General Configuration  
SNMP Community Names  
SNMP Traps  
Switch Configuration  
SmartTrunk  
Configuration  
Password  
System  
Device  
Menu  
Device Specific  
Resources  
Fast  
Ethernet  
Interfaces  
Configuration Menu  
High Speed  
Interface  
Configuration  
Switch Statistics  
Interface Statistics  
RMON Statistics  
Repeater Statistics  
HSIM  
Device  
Statistics  
Menu  
Flash Download  
Port Redirect  
Function  
Broadcast  
Suppression  
Network Tools  
Repeater  
Configuration  
Menu  
Repeater Port  
Configuration  
Device Level  
Security  
Configuration  
Port Level  
Security  
Configuration  
22862-43  
Figure 5-4 802.1D Switching Mode, LM Screen Hierarchy  
Device  
General Configuration  
Configuration  
SNMP Community Names  
SNMP Traps  
Menu  
Switch Configuration  
SmartTrunk  
Configuration  
Password  
System  
Device  
Menu  
Device Specific  
Resources  
Fast  
Ethernet  
Interfaces  
Configuration Menu  
High Speed  
Interface  
Configuration  
Switch Statistics  
Interface Statistics  
RMON Statistics  
Repeater Statistics  
HSIM  
Device  
Statistics  
Menu  
Flash Download  
Broadcast  
Suppression  
Network Tools  
802.1Q VLAN  
Configuration  
Repeater Port  
Configuration  
Repeater  
Configuration  
Menu  
Device Level  
Security  
Configuration  
Port Level  
Security  
Configuration  
22861-82  
Figure 5-5 802.1Q Switching Mode, LM Screen Hierarchy  
5-10  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Accessing Local Management  
Device  
Configuration  
Menu  
General Configuration  
SNMP Community Names  
SNMP Traps  
Password  
System  
Device  
Menu  
Device Specific  
Fast  
Resources  
Configuration Menu  
Ethernet  
Interfaces  
High Speed  
Interface  
Configuration  
HSIM  
Device  
Statistics  
Menu  
Interface Statistics  
RMON Statistics  
Repeater Statistics  
Flash Download  
Network Tools  
Repeater  
Configuration  
Menu  
Repeater Port  
Configuration  
Device Level  
Security  
Configuration  
Port Level  
Security  
Configuration  
22861-83  
Figure 5-6 SecureFast VLAN Mode, LM Screen Hierarchy  
5.4.2  
Selecting Local Management Menu Screen Items  
Select items on a menu screen by performing the following steps:  
1. Use the arrow keys to highlight a menu item.  
2. Press ENTER. The selected menu item displays on the screen.  
5.4.3  
Exiting Local Management Screens  
There are two ways to exit the Local Management (LM) screens.  
Using the Exit Command  
To exit LM using the EXIT screen command, proceed as follows:  
1. Use the arrow keys to highlight the EXIT command at the bottom of  
the Local Management screen.  
2. Press ENTER. The Local Management Password screen displays and  
the session ends.  
2H23-50R/2H33-37R User’s Guide  
5-11  
Download from Www.Somanuals.com. All Manuals Search And Download.  
         
Chapter 5: Local Management  
Using the RETURN Command  
To exit LM using the RETURN command, proceed as follows:  
1. Use the arrow keys to highlight the RETURN command at the bottom  
of the Local Management screen.  
2. Press ENTER. The previous screen in the Local Management  
hierarchy displays.  
The user can also exit Local Management screens by pressing  
ESC twice. This exit method does not warn about unsaved  
NOTE  
changes and all unsaved changes are lost.  
3. Exit from Local Management by repeating steps 1 and 2 until the  
Device Menu screen displays.  
4. To end the LM session, use the arrow keys to highlight the RETURN  
command at the bottom of the Device Menu screen.  
5. Press ENTER. The Local Management Password screen displays and  
the session ends.  
5-12  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Device Menu Screen  
5.5  
DEVICE MENU SCREEN  
The Device Menu screen is the access point for all Local Management  
screens. Figure 5-7 shows the Device Menu screen.  
2H23-50R LOCAL MANAGEMENT  
Device Menu  
Device Type: 2H23-50R  
Firmware Revision:  
XX.XX.XX  
BOOTPROM Revision: XX.XX.XX  
DEVICE CONFIGURATION  
DEVICE STATISTICS  
NETWORK TOOLS  
RETURN  
EXIT  
22861_13  
Figure 5-7 Device Menu Screen  
If the terminal is idle for several minutes, the Local  
Management Password screen redisplays and the session  
ends.  
NOTE  
2H23-50R/2H33-37R User’s Guide  
5-13  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Chapter 5: Local Management  
The following explains each Device Menu screen field as shown in  
Figure 5-7:  
DEVICE CONFIGURATION  
Accesses the Device Configuration menu screen, which provides access  
to the Local Management screens that are used to configure the  
2H23-50R or 2H33-37R, and also provides access to the Device Specific  
Configuration Menu screen. The Device Specific Configuration Menu  
screen provides access to the screens that allow the user to check the  
2H23-50R or 2H33-37R resources and set operating parameters specific  
to each port.  
For details about the Device Configuration Menu screen, refer to  
Section 5.6. For details about the Device Specific Configuration Menu  
screen, refer to Section 5.11.  
DEVICE STATISTICS  
Accesses the Device Statistics Menu screen, which provides access to  
screens that allow the user to obtain switch, interface, RMON, and  
repeater statistics information about the 2H23-50R or 2H33-37R. For  
details, refer to Section 5.22.  
NETWORK TOOLS  
Accesses the Network Tools function, which resides on the 2H23-50R or  
2H33-37R and consists of a series of commands that allow the user to  
access and manage network devices. Section 5.27 explains how to use the  
Network Tools utility.  
5-14  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Device Configuration Menu Screen  
5.6  
DEVICE CONFIGURATION MENU SCREEN  
The Device Configuration Menu screen, Figure 5-8, provides access to a  
series of Local Management screens, which allow the user to configure  
and monitor operating parameters, modify SNMP community names, set  
SNMP traps, configure switch parameters and configure the ports of the  
2H23-50R or 2H33-37R.  
The following menu items on the Device Configuration Menu  
screen do not display if the operational mode of the device is  
NOTE  
set to SECURE FAST VLAN:  
SWITCH CONFIGURATION  
SMARTTRUNK CONFIGURATION  
Section 5.7.9 provides instructions on setting the operational  
mode.  
To access the Device Configuration Menu screen from the Device Menu  
screen, use the arrow keys to highlight the DEVICE  
CONFIGURATION menu item and press ENTER. The Device  
Configuration Menu screen displays.  
2H23-50R LOCAL MANAGEMENT  
Device Configuration Menu  
Device Type: 2H23-50R  
Firmware Revision:  
XX.XX.XX  
BOOTPROM Revision: XX.XX.XX  
GENERAL CONFIGURATION  
SNMP COMMUNITY NAMES  
SNMP TRAPS  
SWITCH CONFIGURATION  
SMARTTRUNK CONFIGURATION  
DEVICE SPECIFIC CONFIGURATION  
EXIT  
RETURN  
22861_66  
Figure 5-8 Device Configuration Menu Screen  
2H23-50R/2H33-37R User’s Guide  
5-15  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Chapter 5: Local Management  
The following briefly explains each screen that is accessible from the  
Device Configuration Menu screen:  
GENERAL CONFIGURATION  
The General Configuration screen allows the user to monitor and  
details, refer to Section 5.7.  
SNMP COMMUNITY NAMES  
The SNMP Community Names screen allows the user to enter new,  
device management operation. Access is limited based on the password  
level of the user. For details, refer to Section 5.8.  
SNMP TRAPS  
table of IP addresses used for trap destinations and associated community  
names. For details, refer to Section 5.9.  
SWITCH CONFIGURATION  
The Switch Configuration screen provides the basic setup options for  
customizing the operation of a switch device in the network. For details,  
refer to Section 5.10.  
SMARTTRUNK CONFIGURATION  
The SmartTrunk Configuration screen allows the user to logically group  
interfaces to aggregate high speed uplinks. For details, refer to  
SmartTrunk User’s Guide.  
DEVICE SPECIFIC CONFIGURATION  
The Device Specific Configuration Menu screen allows the user to select  
screens to configure ports or check system resources specific to the  
2H23-50R or 2H33-37R. For details, refer to Section 5.11.  
5-16  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
General Configuration Screen  
5.7  
GENERAL CONFIGURATION SCREEN  
The General Configuration screen, Figure 5-9, allows the user to set the  
system date and time, IP address and subnet mask, the Default Gateway,  
the TFTP Gateway IP address, and the operational mode. Also, clear the  
NVRAM, set the screen refresh time, the screen lockout time, the IP  
fragmentation, and the COM port configuration.  
To access the General Configuration screen from the Device  
Configuration Menu screen, use the arrow keys to highlight the  
GENERAL CONFIGURATION menu item and press ENTER. The  
General Configuration screen displays.  
Event Message Line  
2H23-50R LOCAL MANAGEMENT  
General Configuration  
Device Type: 2H23-50R  
Firmware Revision:  
XX.XX.XX  
BOOTPROM Revision: XX.XX.XX  
MAC Address:  
00-00-ID-00-00-00  
0.0.0.0  
Device Date:  
01/11/1997  
IP Address:  
Device Time:  
14:23:00  
03 sec.  
15 min.  
Subnet Mask:  
0.0.0.0  
Screen Refresh Time:  
Screen Lockout Time:  
Default Gateway:  
TFTP Gateway IP Addr:  
NONE DEFINED  
0.0.0.0  
Device Uptime XX D XX H XX M  
Operational Mode: [802.1D SWITCHING]  
Com: [ENABLED]  
Application:  
[LM]  
Clear NVRAM:  
[NO]  
IP Fragmentation [ENABLED ]  
SAVE  
EXIT  
RETURN  
22861-15  
Figure 5-9 General Configuration Screen  
The following briefly explains each General Configuration screen field:  
MAC Address (Read-Only)  
Displays the physical address of the 2H23-50R or 2H33-37R device.  
2H23-50R/2H33-37R User’s Guide  
5-17  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
Chapter 5: Local Management  
IP Address (Modifiable)  
Displays and allows the user to set the IP address for the device. To set the  
IP address, refer to Section 5.7.1. The IP address can also be set through  
Runtime IP Address Discovery as previously described in Section 1.3.5,  
Runtime IP Address Discovery.  
Subnet Mask (Modifiable)  
Displays the subnet mask for the device. A subnet mask “masks out” the  
network bits of the IP address by setting the bits in the mask to 1 when the  
network treats the corresponding bits in the IP address as part of the  
the host. For details about how to change the subnet mask from its default  
value, refer to Section 5.7.2.  
Default Gateway (Modifiable)  
Displays the default gateway for the device. This field is not defined until  
an appropriate value is entered. For details about why and how to set the  
Default Gateway, refer to Section 5.7.3.  
TFTP Gateway IP Addr (Modifiable)  
Displays and allows the user to set the TFTP Gateway IP address for the  
device. To set the TFTP Gateway IP address, refer to Section 5.7.4.  
Device Date (Modifiable)  
Contains a value that the device recognizes as the current date. To set a  
new device date, refer to Section 5.7.5.  
Device Time (Modifiable)  
Contains a value that the device recognizes as the current time. To enter a  
new time, refer to Section 5.7.6.  
Screen Refresh Time (Modifiable)  
Contains the rate at which the screens are updated. This setting  
determines how frequently (in seconds) information is updated on the  
screen. To enter a new update time, refer to Section 5.7.7.  
5-18  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
           
General Configuration Screen  
Screen Lockout Time (Modifiable)  
Contains the maximum number of minutes that the Local Management  
application displays the device’s screen while awaiting input or action  
from a user. For example, if the number 5 is entered in this field, the user  
has up to five minutes to respond to each of the Local Management  
screens.  
In this example, after five minutes of “idleness” (no input or action), the  
terminal “beeps” five times, the Local Management application  
terminates the session, and the display returns to the Local Management  
Password screen. To enter a new lockout time, refer to Section 5.7.8.  
Device Uptime (Read-Only)  
Displays the total time that the device has been operating.  
Operational Mode (Selectable)  
Allows the user to set the 2H23-50R or 2H33-37R so it operates as an  
802.1D switch (802.1D SWITCHING), an IEEE 802.1Q switch (802.1Q  
SWITCHING), or as a Cabletron Systems SecureFast switch (SECURE  
FAST VLAN).  
In all three modes of operation, the 12 connections on each RJ21 port  
(CONN1 – CONN4 on 2H23-50R or CONN1 – CONN3 on 2H33-37R)  
may be assigned individually to operate at 10 Mbps or 100 Mbps. The  
connections that share either 10 Mbps or 100 Mbps operation reside on  
one network (two networks per RJ21 port).  
In the 802.1D SWITCHING mode, each of the networks are  
automatically bridged to each other and to any Fast Ethernet Interface  
Module in the 2H23-50R or HSIM port(s) in the 2H33-37R.  
In the 802.1Q SWITCHING mode, the switching functionality of the  
device can be increased by creating and maintaining IEEE 802.1Q port  
based Virtual LANs (VLANs).  
In the SECURE FAST VLAN mode, the device acts as a SecureFast  
switch. With the Cabletron Systems VLAN Manager software, the device  
is able to increase its switching functionality by creating and maintaining  
VLANs.  
For details on how to select the Operational Mode, refer to Section 5.7.9.  
2H23-50R/2H33-37R User’s Guide  
5-19  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Chapter 5: Local Management  
Com (Toggle)  
Allows the user to enable or disable the COM port. The selection toggles  
between ENABLED and DISABLED. The default is ENABLED. For  
details about setting up the COM port, refer to Section 5.7.10.  
Application (Toggle)  
Allows the user to set the application that the COM port supports. The  
field toggles between LM (Local Management) and UPS (Uninterruptible  
Power Supply).  
The UPS setting allows the COM port to be used to monitor an American  
Power Conversion (APC) Uninterruptible Power Supply (UPS).  
The baud rate setting for LM is automatically sensed. For UPS, the baud  
rate is automatically set to 2400.  
The default setting is LM. For details about how to configure the COM  
port for various applications, refer to Section 5.7.10.  
Clear NVRAM (Toggle)  
Allows the user to reset NVRAM to the factory default settings. All  
user-entered parameters, such as IP address and Community Names, are  
then replaced with device default configuration settings. For details, refer  
to Section 5.7.11.  
IP Fragmentation (Toggle)  
Allows the user to enable or disable IP Fragmentation. The default setting  
for this field is ENABLED. If the device is to be bridged to an FDDI ring  
via an HSIM-F6, IP Fragmentation must be enabled. If IP Fragmentation  
is disabled, all FDDI frames that exceed the maximum Ethernet frame  
size are discarded. For details on enabling IP Fragmentation, refer to  
Section 5.7.12.  
5-20  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
General Configuration Screen  
5.7.1  
Setting the IP Address  
To set the IP address, perform the following steps:  
1. Use the arrow keys to highlight the IP Address field.  
2. Enter the IP address into this field using Dotted Decimal Notation  
(DDN) format.  
For example: 134.141.79.120  
the beginning of the IP address field. If the entry is not valid, the screen  
displays the message “INVALID IP ADDRESS OR FORMAT  
ENTERED”. Local Management does not alter the current value and  
refreshes the IP address field with the previous value.  
4. Use the arrow keys to highlight the SAVE command, then press  
ENTER. The warning screen shown in Figure 5-10 displays.  
WARNING!  
YOU HAVE ELECTED TO SAVE ONE OR MORE CONFIGURATION  
ITEMS THAT REQUIRE RESETTING THIS DEVICE.  
ARE YOU SURE YOU WANT TO CONTINUE?  
YES  
NO  
19601-84  
Figure 5-10 Configuration Warning Screen  
5. Use the arrow keys to highlight the YES command, then press  
ENTER. The changes are saved and the device reboots.  
2H23-50R/2H33-37R User’s Guide  
5-21  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Chapter 5: Local Management  
5.7.2  
Setting the Subnet Mask  
If the management workstation that is to receive SNMP traps from the  
2H23-50R or 2H33-37R is located on a separate subnet, the subnet mask  
for the 2H23-50R or 2H33-37R may need to be changed from its default.  
To change the subnet mask from its default, perform the following steps:  
1. Use the arrow keys to highlight the Subnet Mask field.  
2. Enter the subnet mask into this field using Dotted Decimal Notation  
(DDN) format.  
For example: 255.255.0.0  
beginning of the Subnet Mask field. If the entry is not valid, the screen  
displays the message “INVALID SUBNET MASK OR FORMAT  
ENTERED”. Local Management does not alter the current value, but  
it does refresh the Subnet Mask field with the previous value.  
4. Use the arrow keys to highlight the SAVE command, then press  
ENTER. The warning screen shown in Figure 5-11 displays.  
WARNING!  
YOU HAVE ELECTED TO SAVE ONE OR MORE CONFIGURATION  
ITEMS THAT REQUIRE RESETTING THIS DEVICE.  
ARE YOU SURE YOU WANT TO CONTINUE?  
YES  
NO  
19601-84  
Figure 5-11 Configuration Warning Screen  
5-22  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
General Configuration Screen  
5. Use the arrow keys to highlight the YES command, then press  
ENTER. The changes are saved and the device reboots.  
5.7.3  
Setting the Default Gateway  
If the SNMP management station is located on a different IP subnet than  
the 2H23-50R or 2H33-37R, a default gateway must be specified. When  
an SNMP Trap is generated, the 2H23-50R or 2H33-37R sends the Trap  
to the default gateway.  
To set the default gateway, perform the following steps:  
1. Use the arrow keys to highlight the Default Gateway field.  
2. Enter the IP address of the default gateway using the DDN format.  
For example: 134.141.79.121  
3. Press ENTER. If the default gateway entered is a valid format, the  
cursor returns to the beginning of the Default Gateway field. If the  
entry is not valid, the screen displays “INVALID DEFAULT  
GATEWAY OR FORMAT ENTERED”. Local Management does not  
alter the current value, but it does refresh the Default Gateway field  
with the previous value.  
4. Use the arrow keys to highlight the SAVE command.  
5. Press ENTER. The message “SAVED OK” displays at the top of the  
screen.  
5.7.4  
Setting the TFTP Gateway IP Address  
If the network TFTP server is located on a different IP subnet than the  
2H23-50R or 2H33-37R, a Gateway IP address should be specified.  
To set the TFTP Gateway IP address, perform the following steps:  
1. Use the arrow keys to highlight the TFTP Gateway IP Addr field.  
2. Enter the IP address of the TFTP gateway using the DDN format.  
For example: 134.141.80.122  
2H23-50R/2H33-37R User’s Guide  
5-23  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
Chapter 5: Local Management  
3. Press ENTER. If the TFTP gateway IP address entered is a valid  
format, the cursor returns to the beginning of the TFTP Gateway IP  
Address field. If the entry is not valid, the screen displays “INVALID  
TFTP GATEWAY IP ADDRESS OR FORMAT ENTERED”. Local  
Management does not alter the current value, but it does refresh the  
TFTP Gateway IP Address field with the previous value.  
4. Use the arrow keys to highlight the SAVE command.  
5. Press ENTER. The message “SAVED OK” displays at the top of the  
screen.  
5.7.5  
Setting the Device Date  
The 2H23-50R or 2H33-37R is year 2000 compliant so that the Device  
Date field can be set beyond the year 1999.  
To set the device date, perform the following steps:  
1. Use the arrow keys to highlight the Device Date field.  
2. Enter the date in this format: MM/DD/YYYY  
It is not necessary to add separators between month, day, and  
year numbers, as long as each entry has the correct number of  
NOTE  
numeric characters. For example, to set the date to  
03/17/1997, type “03171997” in the Device Date field.  
3. Press ENTER to set the system calendar to the date in the input field.  
4. Use the arrow keys to highlight the SAVE command at the bottom of  
the screen and press ENTER.  
If the date entered is a valid format, the message displays “SAVED OK”  
at the top of the screen. If the entry is not valid, Local Management does  
not alter the current value, but it does refresh the Device Date field with  
the previous value.  
5-24  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
General Configuration Screen  
5.7.6  
Setting the Device Time  
To set the device time, perform the following steps:  
1. Use the arrow keys to highlight the Device Time field.  
2. Enter the time in this 24-hour format: HH:MM:SS  
When entering the time in the system time field, separators  
between hours, minutes, and seconds are not needed as long  
NOTE  
as each entry uses two numeric characters. For example, to set  
the time to 6:45 P.M., type “184500” in the Device Time field.  
3. Press ENTER to set the system clock to the time in the input field.  
4. Use the arrow keys to highlight the SAVE command at the bottom of  
the screen and press ENTER.  
If the time entered is a valid format, the message displays “SAVED OK”  
at the top of the screen. If the entry is not valid, Local Management does  
not alter the current value and refreshes the Device Time field with the  
previous value.  
5.7.7  
Entering a New Screen Refresh Time  
The screen refresh time is set from 3 to 99 seconds with a default of 3  
seconds. To set a new screen refresh time, perform the following steps:  
1. Use the arrow keys to highlight the Screen Refresh Time field.  
2. Enter a number from 3 to 99.  
3. Press ENTER to set the refresh time to the time entered in the input  
field.  
4. Use the arrow keys to highlight the SAVE command at the bottom of  
the screen and press ENTER.  
If the time entered is within the 3 to 99 seconds range, the message  
“SAVED OK” displays at the top of the screen. If the entry is not valid,  
Local Management does not alter the current setting, but it does refresh  
the Screen Refresh Time field with the previous value.  
2H23-50R/2H33-37R User’s Guide  
5-25  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
Chapter 5: Local Management  
5.7.8  
Setting the Screen Lockout Time  
The screen lockout time can be set from 1 to 30 minutes with a default of  
15 minutes. To set a new lockout time, perform the following steps:  
1. Use the arrow keys to highlight the Screen Lockout Time field.  
2. Enter a number from 1 to 30.  
3. Press ENTER to set the lockout time in the input field.  
4. Use the arrow keys to highlight the SAVE command at the bottom of  
the screen and press ENTER.  
If the time entered is within the 1 to 30 minutes range, the message  
“SAVED OK” displays at the top of the screen. If the entry is not valid,  
Local Management does not alter the current setting, but it does refresh  
the Screen Lockout Time field with the previous value.  
5.7.9  
Setting the Operational Mode  
To set the Operational Mode, proceed as follows:  
1. Use the arrow keys to highlight the Operational Mode field.  
2. Press the SPACE bar to step to the appropriate operation mode,  
(802.1D SWITCHING, 802.1Q SWITCHING, or SECURE FAST  
VLAN).  
3. Use the arrow keys to highlight the SAVE command, then press  
ENTER. The warning screen shown in Figure 5-12 displays.  
5-26  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
         
General Configuration Screen  
WARNING!  
YOU HAVE ELECTED TO SAVE ONE OR MORE CONFIGURATION  
ITEMS THAT REQUIRE RESETTING THIS DEVICE.  
ARE YOU SURE YOU WANT TO CONTINUE?  
YES  
NO  
19601-84  
Figure 5-12 Configuration Warning Screen  
4. Use the arrow keys to highlight the YES command, then press  
ENTER. The changes are saved and the device reboots.  
If the 2H23-50R or 2H33-37R is set to 802.1Q SWITCHING,  
refer to your Port Based VLAN User’s Guide to configure the  
devices for this type of operation.  
NOTE  
If the 2H23-50R or 2H33-37R is set to SECURE FAST VLAN,  
refer to your SecureFast documentation set to configure the  
devices for this type of operation.  
2H23-50R/2H33-37R User’s Guide  
5-27  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Chapter 5: Local Management  
5.7.10 Configuring the COM Port  
Upon power up, the COM port is configured to the default settings of  
ENABLED and LM.  
Before altering the COM port settings, ensure that the  
2H23-50R or 2H33-37R is set with a valid IP address. (Refer to  
Section 5.7.1, Setting the IP Address.) Read this entire COM  
port configuration section before changing the settings of the  
COM port.  
!
CAUTION  
The COM port supports the following applications:  
Local Management connections  
American Power Conversion (APC) Uninterruptible Power Supply  
(UPS) connections  
To configure the COM port, proceed as follows:  
1. Use the arrow keys to highlight the Com field.  
Do NOT disable or alter the settings of the COM port while  
operating the current Local Management connection through a  
terminal. Altering the COM port settings disconnects the Local  
Management session. If the 2H23-50R or 2H33-37R was  
previously assigned a valid IP address, reenter Local  
!
CAUTION  
Management by establishing a Telnet connection to the device.  
If the device does not have a valid IP address and the COM  
port has been disabled or the settings changed, reset NVRAM  
using mode switch 7 on the 2H23-50R or 2H33-37R (refer to  
Appendix C) to reestablish COM port communications.  
2. Press the SPACE bar to choose either ENABLED or DISABLED.  
The COM port must be enabled to use it for Local Management or  
UPS applications. Select DISABLED to disable the COM port for  
additional device security.  
3. Use the arrow keys to highlight SAVE. Press ENTER.  
5-28  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
General Configuration Screen  
If the COM port is reconfigured without a valid IP address set  
on the device, the message shown in Figure 5-13 displays.  
Do not continue unless the outcome of the action is fully  
understood. If the WARNING screen displays, proceed to  
step 4. Otherwise, proceed to step 5.  
!
CAUTION  
WARNING  
THE COM PORT HAS BEEN RECONFIGURED AND THERE IS NO IP  
ADDRESS SET FOR THIS DEVICE. YOU WILL NO LONGER BE ABLE  
TO MANAGE THIS DEVICE. DO YOU STILL WISH TO RECONFIGURE  
THIS COM PORT?  
NO  
YES  
17421-52  
Figure 5-13 COM Port Warning Screen  
4. Use the arrow keys to highlight YES. Press ENTER.  
5. If the port was ENABLED, proceed to step 6. If the port was  
DISABLED, use the arrow keys to highlight SAVE at the bottom of  
the screen, then press ENTER.  
Exiting without saving causes the message “NOT SAVED --  
PRESS SAVE TO KEEP CHANGES” to display. Exiting without  
saving causes all edits to be lost.  
NOTE  
6. When the message “SAVED OK” displays, the edits you made are  
saved.  
2H23-50R/2H33-37R User’s Guide  
5-29  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Chapter 5: Local Management  
5.7.10.1 Changing the COM Port Application  
After enabling the COM port as described in Section 5.7.10, one of the  
applications supported by the COM port (LM or UPS) can be selected.  
The default application is LM.  
To change the COM port application:  
1. Use the arrow keys to highlight the Application field.  
2. Use the SPACE bar or BACKSPACE to step through the available  
settings until the operation you require displays. Table 5-3 lists the  
available settings and their corresponding applications.  
Table 5-3 COM Port Application Settings  
Setting  
Application  
LM  
Local Management Session  
UPS  
APC Power Supply SNMP Proxy  
3. Press ENTER to accept the application.  
4. Use the arrow keys to highlight the SAVE command at the bottom of  
the screen, then press the ENTER key. The message “SAVED OK”  
displays, indicating that the edits are saved.  
When the COM port is configured to perform the UPS  
application, all future Local Management connections must be  
made by establishing a Telnet connection to the device. Ensure  
!
CAUTION  
that the device has a valid IP address before saving changes to  
the COM port application. If the device does not have a valid IP  
address and the changes are saved, refer to Appendix C for  
instructions on clearing NVRAM in order to reestablish COM  
port communications.  
5.7.11 Clearing NVRAM  
Clearing NVRAM results in the loss of all user-entered  
parameters. Do not proceed unless the following procedure is  
completely understood.  
!
CAUTION  
Clearing NVRAM allows the user to clear all user-entered parameters,  
such as the IP address and Community Names from NVRAM.  
5-30  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
         
General Configuration Screen  
Clear NVRAM as follows:  
1. Use the arrow keys to highlight the Clear NVRAM field.  
2. Use the SPACE bar to toggle the field to YES.  
3. Use the arrow keys to highlight SAVE at the bottom of the screen.  
4. Press ENTER. The warning shown in Figure 5-14 displays.  
WARNING  
YOU HAVE ELECTED TO CLEAR NVRAM. THIS WILL CLEAR  
ALL SYSTEM DEFAULTS INCLUDING BUT NOT LIMITED TO  
IP ADDRESS, INTERFACE CONFIGURATION, AND COM PORT  
CONFIGURATION, THEN REBOOT THE DEVICE.  
ARE YOU SURE YOU WANT TO CLEAR NVRAM?  
NO  
YES  
17421-51  
Figure 5-14 Clear NVRAM Warning Screen  
5. Select YES and the message “CLEARING NVRAM. REBOOT IN  
PROGRESS...” displays.  
6. The 2H23-50R or 2H33-37R clears NVRAM and reboots. All  
user-entered parameters default to factory default settings.  
2H23-50R/2H33-37R User’s Guide  
5-31  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Chapter 5: Local Management  
5.7.12 Enabling/Disabling IP Fragmentation  
To enable or disable IP Fragmentation, proceed as follows:  
If the 2H33-37R is being bridged to an FDDI ring (for example,  
via an optional HSIM-F6), enable IP Fragmentation. If it is  
disabled, all FDDI frames that exceed the maximum Ethernet  
frame size are discarded.  
!
CAUTION  
1. Use the arrow keys to highlight the IP Fragmentation field.  
2. Press the SPACE bar to choose either ENABLED or DISABLED.  
3. Use the arrow keys to highlight the SAVE command.  
4. Press ENTER. The message “SAVED OK” displays at the top of the  
screen.  
5-32  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
SNMP Community Names Screen  
5.8  
SNMP COMMUNITY NAMES SCREEN  
The SNMP Community Names screen, Figure 5-15, allows the user to set  
SNMP Management community names. Community names act as  
passwords to Local/Remote Management and are agents of security  
access to the 2H23-50R or 2H33-37R. Access to the device is controlled  
by enacting any of three different levels of security authorization  
(read-only, read-write, and super-user).  
Super-user access gives the user full management privileges,  
allows existing passwords to be changed, and all modifiable  
NOTE  
MIB objects for the Cabletron Container MIB and Internet  
MIB-II to be edited.  
To access the SNMP Community Names screen from the Device  
Configuration Menu screen, use the arrow keys to highlight the SNMP  
COMMUNITY NAMES menu item and press ENTER. The SNMP  
Community Names screen displays.  
Event Message Line  
2H23-50R LOCAL MANAGEMENT  
SNMP Community Names  
Device Type: 2H23-50R  
Firmware Revision:  
XX.XX.XX  
BOOTPROM Revision: XX.XX.XX  
Community Name  
public  
Access Policy  
read-only  
read-write  
super-user  
public  
public  
SAVE  
RETURN  
EXIT  
22861-16  
Figure 5-15 SNMP Community Names Screen  
2H23-50R/2H33-37R User’s Guide  
5-33  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
Chapter 5: Local Management  
The following explains each SNMP Community Names screen field:  
Community Name (Modifiable)  
Displays the user-defined name through which a user accesses the  
2H23-50R or 2H33-37R SNMP Management. Any community name  
assigned here acts as a password to Local/Remote Management.  
Access Policy (Read-Only)  
Indicates the access accorded each community name. The available  
access levels are as follows:  
read-only  
This community name gives the user read-only  
access to the 2H23-50R or 2H33-37R MIB  
objects, and excludes access to  
security-protected fields of read-write or  
super-user authorization.  
read-write  
super-user  
This community name gives the user read-write  
access to the 2H23-50R or 2H33-37R MIB  
objects, excluding security protected fields for  
Super-User access only.  
This community name gives the user read-write  
access to the 2H23-50R or 2H33-37R MIB  
objects and allows the user to change all  
modifiable parameters including community  
names, IP addresses, traps, and SNMP objects.  
5-34  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
SNMP Community Names Screen  
5.8.1  
Establishing Community Names  
The password used to access Local Management at the Password Screen  
must have super-user access to view and edit the SNMP Community  
Names screen. Using a password with read-only or read-write access does  
not allow the user to view or edit the SNMP Community Names screen.  
Any community name assigned in the SNMP Community  
Names screen is a password to its corresponding level of  
NOTE  
access to Local Management.  
The community name assigned super-user access is the only  
one that gives the user complete access to Local Management.  
To establish community names, proceed as follows:  
1. Use the arrow keys to highlight the Community Name field adjacent  
to the selected access level.  
2. Enter the password in the field (maximum 31 characters).  
3. Press ENTER.  
4. Repeat steps 1 through 3 to modify the other community names.  
5. Use the arrow keys to highlight the SAVE command at the bottom of  
the screen and press ENTER. The message “SAVED OK” displays.  
The community names are saved to memory and their access modes  
implemented.  
Exiting without saving causes a “NOT SAVED?” message to  
display. Edits are lost if they are not saved before exiting.  
NOTE  
2H23-50R/2H33-37R User’s Guide  
5-35  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Chapter 5: Local Management  
5.9  
SNMP TRAPS SCREEN  
Since the 2H23-50R or 2H33-37R is an SNMP compliant device, it can  
send messages to multiple Network Management Stations to alert users of  
status changes. The SNMP Traps screen is shown in Figure 5-16.  
To access the SNMP Traps screen from the Device Configuration Menu  
screen, use the arrow keys to highlight the SNMP TRAPS menu item and  
press ENTER. The SNMP Traps screen displays.  
Event Message Line  
2H23-50R LOCAL MANAGEMENT  
SNMP Traps  
Device Type: 2H23-50R  
Firmware Revision:  
XX.XX.XX  
BOOTPROM Revision: XX.XX.XX  
Trap Destination  
0.0.0.0  
Trap Community Name  
public  
Enable Traps  
[NO]  
0.0.0.0  
public  
[NO]  
0.0.0.0  
public  
[NO]  
0.0.0.0  
public  
[NO]  
0.0.0.0  
public  
[NO]  
0.0.0.0  
public  
[NO]  
0.0.0.0  
public  
[NO]  
0.0.0.0  
public  
[NO]  
SAVE  
EXIT  
RETURN  
22861-17  
Figure 5-16 SNMP Traps Screen  
The following explains each field of the SNMP Traps screen.  
Trap Destination (Modifiable)  
Indicates the IP address of the workstation to receive trap alarms. Up to  
eight different destinations can be defined.  
Trap Community Name (Modifiable)  
Displays the Community Name included in the trap message sent to the  
Network Management Station with the associated IP address.  
5-36  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
         
SNMP Traps Screen  
Enable Traps (Toggle)  
Enables transmission of the traps to the network management station with  
the associated IP address. This field toggles between YES and NO.  
5.9.1  
Configuring the Trap Table  
To configure the Trap table, proceed as follows:  
1. Use the arrow keys to highlight the appropriate Trap Destination  
field.  
2. Enter the IP address of the workstation that is to receive traps. IP  
address entries must follow the DDN format.  
For example: 134.141.79.121  
3. Press ENTER. If an invalid entry is entered, the message “INVALID  
IP ENTERED” displays.  
4. Use the arrow keys to highlight the Trap Community Name field.  
Enter the community name.  
5. Press ENTER.  
6. Use the arrow keys to highlight the Enable Traps field. Press the  
SPACE bar to choose either YES (send alarms from the 2H23-50R or  
2H33-37R to the workstation), or NO (prevent alarms from being  
sent).  
7. Use the arrow keys to highlight the SAVE command and press  
ENTER. The message “SAVED OK” displays on the screen.  
Exiting without saving causes a “NOT SAVED?” message to  
display. Edits are lost if they are not saved before exiting.  
NOTE  
The designated workstations now receive traps from the 2H23-50R or  
2H33-37R.  
2H23-50R/2H33-37R User’s Guide  
5-37  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Chapter 5: Local Management  
5.10 SWITCH CONFIGURATION SCREEN  
The Switch Configuration screen is not available if the  
operational mode of the device is set to SECURE FAST VLAN.  
NOTE  
This screen may only be used when the device is configured to  
operate as an 802.1D or 802.1Q switch.  
The Switch Configuration screen, Figure 5-17, provides the basic setup  
options to make a switch operational in your network.  
To access the Switch Configuration screen from the Device Configuration  
Menu screen, use the arrow keys to highlight the SWITCH  
CONFIGURATION menu item and press ENTER. The Switch  
Configuration screen displays up to 8 ports. To view or edit the fields for  
other ports, highlight NEXT at the bottom of the screen and press  
ENTER.  
Depending on the optional interfaces installed and if the device is a  
2H23-50R or 2H33-37R, there can be 10 or 7 ports, respectively. As  
shown in Table 5-4, there are two network ports per RJ21 CONN  
connector.  
Table 5-4 CONN/Port Organization  
2H23-50R  
2H33-37R  
CONN 1 = Network Port 1, 10 Mbps  
Network Port 2, 100 Mbps  
CONN 1 = Network Port 1, 10 Mbps  
Network Port 2, 100 Mbps  
CONN 2 = Network Port 3, 10 Mbps  
Network Port 4, 100 Mbps  
CONN 2 = Network Port 3, 10 Mbps  
Network Port 4, 100 Mbps  
CONN 3 = Network Port 5, 10 Mbps  
Network Port 6, 100 Mbps  
CONN 3 = Network Port 5, 10 Mbps  
Network Port 6, 100 Mbps  
CONN 4 = Network Port 7, 10 Mbps  
Network Port 8, 100 Mbps  
HSIM = Port 7  
Fast Ethernet Slot 5 = Port 9  
Fast Ethernet Slot 6 = Port 10  
5-38  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Switch Configuration Screen  
Event Message Line  
2H23-50R LOCAL MANAGEMENT  
Switch Configuration  
Device Type: 2H23-50R  
Firmware Revision:  
XX.XX.XX  
BOOTPROM Revision: XX.XX.XX  
Switch Address:  
00-00-1D-00-00-00  
Type of STA:  
[DEC]  
300  
Number of Ports: 11  
Age Time (sec):  
Port #  
MAC Address  
State  
Status  
1
2
3
4
5
6
7
8
00-00-1D-00-00-00  
00-00-1D-00-00-01  
00-00-1D-00-00-02  
00-00-1D-00-00-03  
00-00-1D-00-00-04  
00-00-1D-00-00-05  
00-00-1D-00-00-06  
00-00-1D-00-00-07  
learning  
listening  
standby  
learning  
listening  
standby  
listening  
listening  
[ENABLED]  
[DISABLED]  
[ENABLED]  
[DISABLED]  
[ENABLED]  
[DISABLED]  
[ENABLED]  
[DISABLED]  
SAVE  
RETURN  
EXIT  
[9-11]  
22862-18  
Figure 5-17 Switch Configuration Screen  
The following describes each field of the Switch Configuration screen:  
Switch Address (Read-Only)  
Displays the MAC address of the device.  
Number of Ports (Read-Only)  
Displays the total number of switched ports on the 2H23-50R or  
2H33-37R.  
Each of the Ethernet (10 Mbps) and Fast Ethernet (100 Mbps)  
repeater networks are considered single switched ports.  
NOTE  
2H23-50R/2H33-37R User’s Guide  
5-39  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Chapter 5: Local Management  
Depending on the optional interfaces installed and if the device is a  
2H23-50R or 2H33-37R, there can be 10 or 7 switched or network ports.  
Table 5-5 shows the CONN/port organization.  
Table 5-5 CONN/Port Organization  
2H23-50R  
2H33-37R  
CONN 1 = Network Port 1, 10 Mbps  
Network Port 2, 100 Mbps  
CONN 1 = Network Port 1, 10 Mbps  
Network Port 2, 100 Mbps  
CONN 2 = Network Port 3, 10 Mbps  
Network Port 4, 100 Mbps  
CONN 2 = Network Port 3, 10 Mbps  
Network Port 4, 100 Mbps  
CONN 3 = Network Port 5, 10 Mbps  
Network Port 6, 100 Mbps  
CONN 3 = Network Port 5, 10 Mbps  
Network Port 6, 100 Mbps  
CONN 4 = Network Port 7, 10 Mbps  
Network Port 8, 100 Mbps  
HSIM = Port 7  
Fast Ethernet Slot 5 = Port 9  
Fast Ethernet Slot 6 = Port 10  
Type of STA (Selectable)  
Allows the user to set the method that switches use to decide which  
switch is the controlling (Root) switch when two or more switches exist in  
parallel (Spanning Tree Algorithm). Valid selection is IEEE, DEC, and  
NONE. To set the STA, refer to Section 5.10.1.  
Age Time (Modifiable)  
Allows the user to set the amount of time (in seconds) that the 2H23-50R  
or 2H33-37R keeps an address in its switch table before discarding it. An  
address is automatically discarded when a valid frame is not received  
from that address within the time specified in the Age Time field. To  
change the Age Time field from the default value of 300 seconds, refer to  
Section 5.10.2.  
Port # (Read-Only)  
Lists each switched port on the device. If the number of ports is greater  
than eight, then the additional ports are listed on subsequent screens.  
5-40  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
         
Switch Configuration Screen  
MAC Address (Read-Only)  
Displays the hardware address assigned to each listed port.  
State (Read-Only)  
There are five states that can display in this field. These states are  
described as follows:  
Disabled: Management disabled this interface. No traffic is received or  
forwarded while the interface is disabled.  
Listening: The switch is not adding information to the Transparent  
Database. The switch is monitoring the Bridge Protocol Data Unit  
(BPDU) traffic while preparing to move from the learning to the  
forwarding state.  
Learning: The switch is learning the addresses on this interface. The  
switch enters the learning state when the Transparent Database is created  
(during start-up or after being deleted), or when the Spanning Tree  
Algorithm detects a network topology change.  
Forwarding: The switch is operating and this interface is forwarding  
traffic.  
Standby: This interface will not forward any traffic through the switch  
because a loop condition has been detected by the STA.  
Status (Toggle)  
Allows the user to disable or enable a port by setting the status of the  
listed interface to either ENABLED or DISABLED. To set the port status,  
refer to Section 5.10.3.  
[1-8] or [9-11] (Navigation Key)  
When the Switch Configuration screen displays, the current port  
configuration information is displayed for the first 8 ports. This field  
allow the user to step to a second screen (if 2H23-50R) to display the  
information for ports 9 through 11. Depending on the current screen  
displayed, the user can navigate back and forth by highlighting the [1-8]  
or [9-11] field and pressing ENTER.  
2H23-50R/2H33-37R User’s Guide  
5-41  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Chapter 5: Local Management  
5.10.1 Setting the STA  
To set the STA, proceed as follows:  
1. Use the arrow keys to highlight the Type of STA field.  
2. Use the SPACE bar to step to the appropriate setting of IEEE, DEC,  
or NONE.  
3. Use the arrow keys to highlight the SAVE command at the bottom of  
the screen.  
4. Press ENTER. The message “SAVED OK” displays.  
5.10.2 Setting the Age Time Field  
To set the Age Time, proceed as follows:  
1. Use the arrow keys to highlight the Age Time field.  
2. Type in the desired Age Time in increments of 10. The available Age  
Time range is 10 to 1,000,000 seconds with the default value being  
300 seconds.  
3. Use the arrow keys to highlight the SAVE command at the bottom of  
the screen.  
4. Press ENTER. The message “SAVED OK” displays.  
5.10.3 Setting (Enabling or Disabling) the Port Status  
To set the status of an interface (port), proceed as follows:  
1. Use the arrow keys to highlight the Status field of the port.  
2. Use the SPACE bar to toggle to either ENABLED or DISABLED.  
3. Use the arrow keys to highlight the SAVE command at the bottom of  
the screen.  
4. Press ENTER. The message “SAVED OK” displays.  
5-42  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
           
Device Specific Configuration Menu Screen  
5.11 DEVICE SPECIFIC CONFIGURATION MENU  
SCREEN  
The Device Specific Configuration Menu screen, Figure 5-18, allows the  
user to select one of five screens to configure ports or check system  
resources specific to the 2H23-50R or 2H33-37R.  
The PORT REDIRECT FUNCTION menu item on the Device  
Specific Configuration Menu screen does not display if the  
NOTE  
operational mode of the device is set to 802.1Q SWITCHING.  
The PORT REDIRECT FUNCTION and BROADCAST  
SUPPRESSION menu items do not display if the operational  
mode is set to SECURE FAST VLAN.  
Section 5.7.9 provides instructions on setting the operational  
mode.  
To access the Device Specific Configuration Menu screen from the  
Device Configuration Menu screen, use the arrow keys to highlight the  
DEVICE SPECIFIC CONFIGURATION menu item and press  
ENTER. The Device Specific Configuration Menu screen displays.  
2H23-50R LOCAL MANAGEMENT  
Device Specific Configuration Menu  
Device Type: 2H23-50R  
Firmware Revision:  
XX.XX.XX  
BOOTPROM Revision: XX.XX.XX  
SYSTEM RESOURCES  
HIGH SPEED INTERFACE CONFIGURATION  
FLASH DOWNLOAD  
PORT REDIRECT FUNCTION  
BROADCAST SUPPRESSION  
802.1Q VLAN CONFIGURATION  
REPEATER CONFIGURATION MENU  
EXIT  
RETURN  
22863-20  
Figure 5-18 Device Specific Configuration Menu Screen  
2H23-50R/2H33-37R User’s Guide  
5-43  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Chapter 5: Local Management  
Configuration Menu screen:  
SYSTEM RESOURCES  
The System Resources screen displays the amount of FLASH memory,  
DRAM and NVRAM installed, indicates the amount of available memory  
and provides information on 2H23-50R or 2H33-37R operation. For  
details, refer to Section 5.12.  
HIGH SPEED INTERFACE CONFIGURATION  
The High Speed Interface Configuration screen indicates which Fast  
Ethernet Interface Modules are installed in slots 5 and 6 of the 2H23-50R,  
their current operating mode, and if the ports are linked. This screen also  
allows the Auto-Negotiation and Advertised Ability features to be enabled  
or disabled. For details, refer to Section 5.13.  
management of an installed HSIM. For details, refer to the applicable  
HSIM user’s guide.  
FLASH DOWNLOAD  
2H33-37R to download a new image file from a TFTP server to its  
FLASH memory. For details, refer to Section 5.14.  
PORT REDIRECT FUNCTION  
one or multiple switch ports to a specific destination switch port. For  
details, refer to Section 5.15.  
BROADCAST SUPPRESSION  
of received broadcast frames that are forwarded per port per second. For  
details, refer to Section 5.16.  
802.1Q VLAN CONFIGURATION  
This menu item will only display if the 2H23-50R or 2H33-37R has been  
configured to operate as an 802.1Q switch as described in Section 5.7.9,  
Setting the Operational Mode. When selected, this menu item opens the  
VLAN Main Menu screen. For details about the VLAN Local  
Management screens, refer to the Cabletron Systems  
Port Based VLAN User’s Guide.  
5-44  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
System Resources Screen  
REPEATER CONFIGURATION MENU  
The Repeater Configuration Menu screen enables the user to select the  
Repeater Port Configuration screen, which provides access to the security  
screens: Repeater Port Configuration, Device Level Security  
Configuration, and Port Level Security Configuration. For details refer to  
Section 5.18.  
5.12 SYSTEM RESOURCES SCREEN  
The System Resources screen, Figure 5-19, provides information  
concerning the processor used in the 2H23-50R or 2H33-37R and the  
amount of FLASH memory, DRAM, and NVRAM that is installed and  
how much of that memory is available. This screen also allows the user to  
monitor the current processor (switch) utilization and the peak switch  
utilization.  
To access the System Resources screen from the Device Specific  
Configuration Menu screen, use the arrow keys to highlight the SYSTEM  
RESOURCES menu item and press ENTER. The System Resources  
screen displays.  
Event Message Line  
2H23-50R LOCAL MANAGEMENT  
System Resources  
Device Type: 2H23-50R  
Firmware Revision:  
XX.XX.XX  
BOOTPROM Revision: XX.XX.XX  
CPU Type: i960 HT 75 Mhz  
Flash Memory Installed: 4 MB Available:  
XXXXX Bytes  
XXXXX Bytes  
XXXXX Bytes  
DRAM Installed:  
NVRAM Installed:  
20 MB  
XX KB  
Available:  
Available:  
Current Switch Utilization: 66%  
Peak Switch Utilization: 75%  
Reset Peak Switch Utilization: [NO]  
RETURN  
RETURN  
SAVE  
EXIT  
22861-23  
Figure 5-19 System Resources Screen  
2H23-50R/2H33-37R User’s Guide  
5-45  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Chapter 5: Local Management  
The following briefly defines each field of the System Resources screen.  
CPU Type (Read-only)  
Indicates the microprocessor used in the 2H23-50R or 2H33-37R.  
Flash Memory Installed (Read-only)  
Indicates the amount of FLASH memory installed in the 2H23-50R or  
2H33-37R and how much is currently available.  
DRAM Installed (Read-only)  
Indicates the amount of DRAM installed in the 2H23-50R or 2H33-37R  
and how much of it is currently available.  
NVRAM Installed (Read-only)  
Indicates the amount of NVRAM installed in the 2H23-50R or 2H33-37R  
and how much of it is currently available.  
Current Switch Utilization (Read-only)  
Shows the percentage of the device switching capacity currently being  
used.  
Peak Switch Utilization (Read-only)  
Shows the peak percentage of device switching capacity used, since the  
last reset.  
Reset Peak Switch Utilization (Toggle)  
Enables the user to reset the Peak Switch Utilization field. The switch  
may be set to eitherYES or NO as described in Section 5.12.1.YES resets  
the Peak Switch Utilization field to the current system traffic.  
5.12.1 Setting the Reset Peak Switch Utilization  
To set the Reset Peak Switch Utilization field to YES or NO, proceed as  
follows:  
1. Use the arrow keys to highlight the Reset Peak Switch Utilization  
field.  
2. Press the SPACE bar to select YES or NO.  
3. Use the arrow keys to highlight the SAVE command at the bottom of  
the screen.  
4. Press ENTER. The message “SAVED OK” displays.  
5-46  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
                 
High Speed Interface Configuration Screen (2H23-50R Only)  
5.13 HIGH SPEED INTERFACE CONFIGURATION  
SCREEN (2H23-50R ONLY)  
When the HIGH SPEED CONFIGURATION MENU item is  
selected for the 2H33-37R, the applicable HSIM Setup screen  
NOTE  
displays. Refer to the HSIM user’s guide to set operating  
To access the High Speed Interface Configuration menu screen from the  
Device Specific Configuration Menu screen, use the arrow keys to  
highlight the HIGH SPEED INTERFACE CONFIGURATION menu  
item and press ENTER. The High Speed Interface Configuration menu  
screen, Figure 5-20, displays.  
The High Speed Interface Configuration screen, Figure 5-20,  
applies only to slots 5 and 6 of the 2H23-50R. This screen  
NOTE  
supports the FE-100TX, FE-100FX, and FE-100F3 Fast  
Ethernet Interface Modules that operate at 100 Mbps.  
The High Speed Interface Configuration screen displays the types of  
interfaces installed in slots 5 and 6, their current operating mode, and  
indicates if the ports are linked. This screen also allows the user to enable  
or disable Auto-Negotiation and set the Advertised Ability.  
2H23-50R/2H33-37R User’s Guide  
5-47  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Chapter 5: Local Management  
Event Message Line  
2H23-50R LOCAL MANAGEMENT  
High Speed Interface Configuration  
Firmware Revision:  
Device Type: 2H23-50R  
XX.XX.XX  
BOOTPROM Revision: XX.XX.XX  
Port 5  
Port 6  
Unknown  
N/A  
Port Type  
FE-100TX  
Link Status  
Link  
Current Oper. Mode  
Desired Oper. Mode  
Advertised Ability  
100Base-TXFD  
[Auto-Negotiation]  
[100Base-TXFD]  
[N/A]  
[N/A]  
[Disabled]  
[N/A]  
SAVE  
EXIT  
RETURN  
22861-24  
Figure 5-20 High Speed Interface Configuration Screen  
The following briefly defines each field of the High Speed Interface  
Configuration screen.  
Port Type (Read-only)  
Displays the type of interface (FE-100FX, FE-100TX, FE-100F3, or  
Unknown) installed in slots 5 and 6. Figure 5-20 shows that there is an  
FE-100TX interface installed in slot 5 and no interface (indicated by  
Unknown) in slot 6.  
Link Status (Read-only)  
Indicates whether or not there is a physical connection from this port to  
another 10BASE-T or 100BASE-TX/FX device. One of the following  
values displays:  
Link – There is a link signal present and a valid physical connection  
to another device.  
No Link – There is no link signal present and no valid physical  
connection to another device.  
5-48  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
High Speed Interface Configuration Screen (2H23-50R Only)  
Current Oper. Mode (Read-only)  
This field displays the current operating mode of slots 5 and 6. Depending  
on whether a 100BASE-FX or 100BASE-TX Fast Ethernet Interface  
Module is installed, this field displays the following:  
With a 100BASE-FX interface: 100Base-FX, 100Base-FXFD (full  
duplex), or N/A when the slot is empty.  
With a 100BASE-TX interface: Unknown, 10Base-T, 10Base-TFD  
when the slot is empty.  
Desired Oper. Mode (Selectable)  
This field allows the user to select the desired operational mode for an  
interface in slot 5 or 6. The field toggles between 100Base-FX and  
100Base-FXFD (full duplex) when an FE-100FX or FE-100F3 is  
installed. Section 5.13.1 describes how to configure a port with an  
FE-100FX or FE-100F3.  
In normal operation, the port with an FE-100TX installed  
automatically establishes a link with the device at the other end  
NOTE  
of the segment without requiring user setup. However, Local  
Management provides the user with the option of manually  
configuring that port.  
If an FE-100TX is installed, the field steps to Auto-Negotiation,  
10Base-T, 10Base-TFD (full duplex), 100Base-TX, and 100Base-TXFD  
(full duplex). In normal operation, the port with an FE-100TX installed is  
capable of auto-negotiating the operational mode and no further user  
setup is required. Section 5.13.2 describes how to manually configure an  
FE-100TX.  
In Auto-Negotiation, the FE-100TX negotiates to the highest common  
denominator of the two interfaces. The order of priority of negotiation is  
100Base-TXFD, 100Base-TX, 10Base-TFD, and 10Base-T.  
2H23-50R/2H33-37R User’s Guide  
5-49  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Chapter 5: Local Management  
Advertised Ability (Selectable)  
During auto-negotiation, the FE-100TX informs the device at the other  
end of the segment about its capabilities. The capabilities of a port (5 or 6)  
with an FE-100TX installed are 10Base-T, 10Base-TFD (full duplex  
mode), 100Base-TX and 100Base-TXFD (full duplex mode). In normal  
operation, with all capabilities enabled, the FE-100TX “advertises” that it  
has the ability to operate in any mode. The Network Manager may choose  
to set up the port so that only a portion of the available capabilities are  
advertised and the others are disabled. For example, only 100Base-TX  
and 100Base-TXFD might be enabled so that only devices that operate at  
100 Mbps can communicate with that port. Section 5.13.2.2 describes  
how to enable or disable advertised modes.  
5.13.1 Configuring an FE-100FX or FE-100F3  
When an FE-100FX or FE-100F3 is installed in port 5 or 6, it must be  
manually set to operate in the same technology as the device at the other  
end of the connected segment. Section 5.13.1.1 provides instructions for  
manually configuring the slot with an FE-100FX or FE-100F3 interface.  
5.13.1.1 Setting the FE-100FX or FE-100F3  
Operational Mode  
Use the Desired Oper. Mode field to set the active technology. This field  
toggles between 100Base-FX and 100Base-FXFD (full duplex). To set the  
active technology through Local Management, proceed as follows:  
1. Use the arrow keys to highlight the Desired Oper. Mode field.  
2. Use the SPACE bar to select 100Base-FX or 100Base-FXFD (full  
duplex).  
3. Press ENTER. The port now operates in the chosen mode.  
4. Use the arrow keys to highlight the SAVE command. Press ENTER.  
The message “SAVED OK” displays and Local Management saves  
the changes to memory.  
5-50  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
         
5.13.2 Configuring an FE-100TX  
In normal operation, a slot (5 or 6) with an FE-100TX interface  
automatically establishes a link with the device at the other end of the  
segment and no user setup is required. Section 5.13.2.1 and  
Section 5.13.2.2 provide instructions for manually configuring the port  
with an FE-100TX installed.  
5.13.2.1 Setting the FE-100TX Operational Mode  
Use the Desired Oper. Mode field to set the active technology. This field  
steps between Auto-Negotiation, 10Base-T, 10Base-TFD (full duplex),  
100Base-TX, and 100Base-TXFD (full duplex). If Auto-Negotiation is  
selected, the FE-100TX automatically sets the active technology. To  
manually set the active technology through Local Management, proceed  
as follows:  
1. Use the arrow keys to highlight the Desired Oper. Mode field.  
2. Use the SPACE bar to select the desired mode. Press ENTER. If any  
mode other than Auto-Negotiation is selected, the port only operates  
in the chosen mode and Auto-Negotiation is disabled.  
3. Use the arrow keys to highlight the SAVE command. Press ENTER.  
The message “SAVED OK” displays and Local Management saves  
the changes to memory. The selected mode is displayed in both the  
Desired Operational Mode field and the Current Operational Mode  
field.  
5.13.2.2 Setting the FE-100TX Advertised Ability  
In normal operation, a port (5 or 6) with an FE-100TX auto-negotiates to  
the highest speed possible. Under some circumstances, the Network  
Administrator may want the port to advertise only some of the available  
modes. The Advertised Ability field provides the capability to set those  
modes. This field steps to 10Base-T, 10Base-TFD (full duplex),  
100Base-TX, and 100Base-TXFD (full duplex). To set the advertised  
ability, proceed as follows:  
1. Use the arrow keys to highlight the Advertised Ability field.  
2. Use the SPACE bar to select the desired mode.  
2H23-50R/2H33-37R User’s Guide  
5-51  
Download from Www.Somanuals.com. All Manuals Search And Download.  
           
Chapter 5: Local Management  
3. Use the arrow keys to move to the Enable/Disable field at the right of  
the desired mode and use the SPACE bar to select Enabled or  
Disabled. Press ENTER.  
4. Continue this process until you have completed enabling or disabling  
the advertised modes.  
5. Use the arrow keys to highlight the SAVE command. Press ENTER.  
The message “SAVED OK” displays and Local Management saves  
the changes to memory.  
5.14 FLASH DOWNLOAD SCREEN  
The Flash Download screen, shown in Figure 5-21, enables the user to  
upgrade the device with a different operating image.  
The user may also force the download of an image by changing  
the position of Switch 6 located inside the device. Refer to  
NOTE  
Section C-2, Removing the Chassis Cover, for details.  
Before downloading an image to the device, copy the image to the  
network TFTP server.  
For information on how to set up a workstation as a TFTP  
server, refer to the specific workstation documentation.  
NOTE  
To access the Flash Download screen from the Device Specific  
Configuration Menu screen, use the arrow keys to highlight the FLASH  
DOWNLOAD menu item and press ENTER. The Flash Download  
screen displays.  
5-52  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Flash Download Screen  
TFTP DOWNLOAD. WILL COMMIT TO FLASH. REBOOT IN PROGRESS...  
2H23-50R LOCAL MANAGEMENT  
Flash Download  
Device Type: 2H23-50R  
Firmware Revision:  
XX.XX.XX  
BOOTPROM Revision: XX.XX.XX  
Download Method:  
Reboot After Download:  
TFTP Gateway IP Addr:  
Last Image Server IP:  
Last Image File Name:  
Download Server IP:  
Download File Name:  
[TFTP]  
[YES]  
134.141.79.123  
134.141.79.121  
/tftpboot/2H23.hex  
134.141.79.121  
/tftpboot/2H23.hex  
EXECUTE  
EXIT  
RETURN  
22861-49  
Figure 5-21 Flash Download Screen  
Download Server IP and Download File Name display only  
when TFTP or RUNTIME are selected in Download Method.  
NOTE  
The following briefly defines each field of the Flash Download screen:  
Download Method (Selectable)  
BootP, the device sends out a BootP request to determine the IP address of  
the TFTP server and the file name of the image to be downloaded. If set  
for TFTP or RUNTIME, the 2H23-50R or 2H33-37R attempts a TFTP  
download based on the IP address and file name entered in the fields at the  
bottom of the Flash Download screen. Section 5.14.1 describes how to  
download using BootP. Section 5.14.2 describes how to download using  
TFTP. Section 5.14.3 describes how to download using Runtime.  
2H23-50R/2H33-37R User’s Guide  
5-53  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Chapter 5: Local Management  
Reboot After Download (Modifiable only when the user chooses  
RUNTIME)  
This field notifies the user that the 2H23-50R or 2H33-37R will reboot  
after the download is complete. If a Runtime Download is performed, this  
field toggles between YES and NO. If YES is selected, the device reboots  
using the existing firmware image and stores the new firmware image in  
FLASH memory. When the device is reset or during the next power-up,  
the device boots from FLASH memory using the new image.  
TFTP Gateway IP Addr (Selectable)  
This field shows the IP address of the TFTP gateway server defined on the  
General Configuration screen in Section 5.7.4, Setting the TFTP  
Gateway IP Address.  
Last Image Server IP (Read-only)  
This field shows the IP address of the server used for the previous FLASH  
Download.  
Last Image File Name (Read-only)  
This field shows the complete path and file name of the last image  
downloaded to FLASH.  
If TFTP or RUNTIME is selected as the download method (see  
Figure 5-21), the following two additional fields display.  
NOTE  
Download Server IP (Selectable)  
The IP address of the TFTP server to be used for the FLASH download is  
entered in this field.  
Download File Name (Selectable)  
The complete TFTP Server path and file name of the new image is entered  
in this field.  
5-54  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
           
Flash Download Screen  
5.14.1 Image File Download Using BootP  
To set the 2H23-50R or 2H33-37R to download a firmware image to  
FLASH memory using BootP, proceed as follows:  
1. Use the arrow keys to highlight the Download Method field.  
2. Step to BOOTP using the SPACE bar.  
3. Use the arrow keys to highlight the TFTP Gateway IP Addr field.  
4. Set the IP address of the TFTP gateway server (this defaults to the  
same IP address set in the TFTP Gateway IP Addr field in the General  
Configuration screen).  
5. Use the arrow keys to highlight EXECUTE at the bottom of the screen  
and press ENTER. The message “BOOTP DOWNLOAD. WILL  
COMMIT TO FLASH. REBOOT IN PROGRESS...” displays in the  
event message line at the top of the screen and the new image is  
downloaded into FLASH memory.  
5.14.2 Image File Download Using TFTP  
To set the 2H23-50R or 2H33-37R to download a firmware image to  
FLASH memory using TFTP, proceed as follows:  
1. Use the arrow keys to highlight the Download Method field.  
2. Step to TFTP using the SPACE bar.  
3. Use the arrow keys to highlight the TFTP Gateway IP Addr field.  
4. Set the IP address of the TFTP gateway server (this defaults to the  
same IP address as that set in the TFTP Gateway IP Addr field on the  
General Configuration screen).  
5. Use the arrow keys to highlight the Download Server IP field.  
6. Enter the IP address of the TFTP server using the DDN format.  
For example: 134.141.79.121  
7. Use the arrow keys to highlight the Download File Name field.  
8. Enter the complete pathway and file name of the image stored on the  
download server.  
For example: /tftpboot/2H23.hex  
2H23-50R/2H33-37R User’s Guide  
5-55  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
Chapter 5: Local Management  
9. Use the arrow keys to highlight EXECUTE at the bottom of the screen  
and press ENTER. The message “TFTP DOWNLOAD. WILL  
COMMIT TO FLASH. REBOOT IN PROGRESS...” displays in the  
event message line at the top of the screen and the new image is  
downloaded into FLASH memory.  
5.14.3 Image File Download Using Runtime  
To download a firmware image to FLASH memory using Runtime,  
proceed as follows:  
1. Use the arrow keys to highlight the Download Method field.  
2. Step to RUNTIME using the SPACE bar.  
3. Use the arrow keys to highlight the Reboot After Download field.  
4. Use the SPACE bar to select either YES or NO. Select YES if you  
want the device to reboot after the download is completed. Select NO  
if you want the device to store the new image in FLASH memory until  
the device is reset or during the next power-up.  
5. Use the arrow keys to highlight the TFTP Gateway IP Addr field.  
6. Set the IP address of the TFTP gateway server (this defaults to the  
same IP address as that set in the TFTP Gateway IP Addr field on the  
General Configuration screen).  
7. Use the arrow keys to highlight the Download Server IP field.  
8. Enter the IP address of the TFTP server using the DDN format.  
For example: 134.141.79.121  
9. Use the arrow keys to highlight the Download File Name field.  
10. Enter the complete pathway and file name of the image stored on the  
download server.  
For example: /tftpboot/2H23.fls  
11. Use the arrow keys to highlight EXECUTE at the bottom of the screen  
and press ENTER. The message “TFTP DOWNLOAD. WILL  
COMMIT TO FLASH. REBOOT IN PROGRESS...” displays in the  
event message line at the top of the screen and the new image is  
downloaded into FLASH memory.  
5-56  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Port Redirect Function Screen  
5.15 PORT REDIRECT FUNCTION SCREEN  
The Port Redirect Function screen can only be used if the  
operational mode of the device has been set to 802.1D  
SWITCHING. Refer to Section 5.7.9, Setting the Operational  
Mode, for instructions on configuring the device to operate in  
this mode.  
NOTE  
The Port Redirect Function screen, Figure 5-22, enables the user to set  
each Network, Fast Ethernet, or HSIM port as a source or destination  
port. A port can be set to have one or more destination ports. For example,  
port 1 can be set as a source port with three destinations, ports 2, 3, and 4.  
Traffic from port 1 is then automatically redirected to ports 2, 3, and 4.  
Port 1 can also serve as a destination port for other ports. Table 5-6 shows  
the port organization.  
Table 5-6 CONN/Port Organization  
2H23-50R  
2H33-37R  
CONN 1 = Network Port 1, 10 Mbps  
Network Port 2, 100 Mbps  
CONN 1 = Network Port 1, 10 Mbps  
Network Port 2, 100 Mbps  
CONN 2 = Network Port 3, 10 Mbps  
Network Port 4, 100 Mbps  
CONN 2 = Network Port 3, 10 Mbps  
Network Port 4, 100 Mbps  
CONN 3 = Network Port 5, 10 Mbps  
Network Port 6, 100 Mbps  
CONN 3 = Network Port 5, 10 Mbps  
Network Port 6, 100 Mbps  
CONN 4 = Network Port 7, 10 Mbps  
Network Port 8, 100 Mbps  
HSIM = Port 7  
Fast Ethernet Slot 5 = Port 9  
Fast Ethernet Slot 6 = Port 10  
The port redirect function is extremely useful for troubleshooting  
purposes, as it allows traffic to be sent to a particular port(s) where, with  
the use of an analyzer or RMON probe, all current traffic from the source  
port(s) can be examined.  
Although all traffic from the source port (including, if desired,  
errored frames) is sent to the destination port, normal switching  
NOTE  
is still performed for all frames on the source port.  
2H23-50R/2H33-37R User’s Guide  
5-57  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Chapter 5: Local Management  
Port Redirect operates at a switch interface level and not at a repeater port  
level. If traffic is redirected to interfaces that include active repeater ports,  
then the redirected traffic is transmitted out all of the repeater ports  
connected to the interface.  
To access the Port Redirect Function screen from the Device Specific  
Configuration Menu screen, use the arrow keys to highlight the PORT  
REDIRECT FUNCTION menu item and press ENTER. The Port  
Redirect Function screen displays.  
Event Message Line  
2H23-50R LOCAL MANAGEMENT  
Port Redirect Function  
Device Type: 2H23-50R  
Firmware Revision:  
XX.XX.XX  
BOOTPROM Revision: XX.XX.XX  
Source Port:  
Destination Port:  
============  
Remap Errors:  
============  
============  
1
1
1
2
2
3
3
3
2
3
4
1
3
4
5
6
ON  
ON  
ON  
OFF  
OFF  
ON  
ON  
ON  
Source Port [1]  
Destination Port [1]  
Errors [ON]  
Status [ADD]  
RETURN  
RETURN  
PREVIOUS  
SAVE  
NEXT  
EXIT  
22861_22  
Figure 5-22 Port Redirect Function Screen  
The following definitions briefly explain each field of the Port Redirect  
Function screen:  
Source Port (Read-only)  
Shows which ports are currently set as source ports. To display the ports,  
refer to Section 5.15.1.  
Destination Port (Read-only)  
Shows which ports are currently set as destination ports.  
5-58  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Port Redirect Function Screen  
Remap Errors (Read-only)  
Displays whether the corresponding source ports are configured (ON) to  
send errored frames to the destination ports, or (OFF) to drop all errored  
frames and only forward traffic without errored frames to the destination  
ports.  
Source Port [n] (Selectable)  
Enables a selected port [n] to be changed to a source port.  
Destination Port [n] (Selectable)  
Enables a selected port [n] to be changed to a destination port.  
Errors (Toggle)  
Enables the user to configure the source ports to either (ON) send errored  
frames to selected destination ports, or (OFF) drop errored frames, and  
send only valid traffic to the destination ports. The default setting of this  
field is ON. To set the Errors field, refer to Section 5.15.2.  
Status (Toggle)  
Enables the addition or deletion of source and destination ports selected  
in the Source Port [n] and Destination Port [n] fields.  
5.15.1 Displaying the Source and Destination Entries  
There can be more than one Port Redirect Function screen depending on  
the number of port redirect entries. Each screen displays up to 10 port  
redirect entries. If there is more than one screen of redirect entries, the  
NEXT and/or PREVIOUS command displays at the bottom of the screen,  
allowing the user to navigate to either the next or previous screen.  
For example, with three screens of entries, the NEXT command displays  
at the bottom of the first screen. In the second screen, the NEXT and  
PREVIOUS commands display. In the last screen, only the PREVIOUS  
command displays.  
To display the next screen, use the arrow keys to highlight NEXT. Press  
ENTER and the next screen of entries displays.  
To display the previous screen, use the arrow keys to highlight  
PREVIOUS. Press ENTER to view the entries on the previous screen.  
2H23-50R/2H33-37R User’s Guide  
5-59  
Download from Www.Somanuals.com. All Manuals Search And Download.  
             
Chapter 5: Local Management  
5.15.2 Changing Source and Destination Ports  
Add or delete source port and destination port entries as follows:  
1. Use the arrow keys to highlight the Source Port field.  
2. Press the SPACE bar or BACKSPACE one or more times to increment  
or decrement the port number displayed in the brackets [n] until the  
appropriate port number displays.  
3. Use the arrow keys to highlight the Destination Port field.  
4. Use the SPACE bar or BACKSPACE to step to the appropriate port  
number for the destination port.  
5. Use the arrow keys to highlight ADD or DEL (delete) in the Status  
field.  
6. Use the SPACE bar to set Status to either ADD or DEL (delete) and  
press ENTER. This adds or deletes the port selections made in steps 2  
and 4 and also updates the screen Source Port and Destination Port list.  
7. Use the arrow keys to highlight ON or OFF in the Errors field.  
8. Use the SPACE bar to set Errors to either ON or OFF and press  
ENTER. ON forces the source port to forward errored frames to the  
destination port(s). OFF forces the errored frames to be dropped  
before forwarding traffic.  
If more than one port is to be redirected, repeat steps 1 through  
8 for each additional setting, then go to step 9 to save all the  
NOTE  
new settings at once.  
9. Use the arrow keys to highlight SAVE at the bottom of the screen.  
Press ENTER. The message “SAVED OK” displays. This saves the  
new settings and updates the Source Port and Destination Port  
read-only fields.  
5-60  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Broadcast Suppression Screen  
5.16 BROADCAST SUPPRESSION SCREEN  
The Broadcast Suppression screen, Figure 5-23, enables the user to set a  
desired limit of receive broadcast frames that are switched out to the other  
Network, Fast Ethernet, or HSIM ports.  
The Broadcast Suppression screen is not available if the  
operational mode of the device is set to SECURE FAST VLAN.  
NOTE  
This screen may only be used when the device is configured to  
operate as an 802.1D or 802.1Q switch.  
Broadcast frames received above the threshold setting are  
dropped.  
To access the Broadcast Suppression screen from the Device Specific  
Configuration Menu screen, use the arrow keys to highlight the  
BROADCAST SUPPRESSION menu item and press ENTER. The  
Broadcast Suppression screen displays.  
Event Message Line  
2H23-50R LOCAL MANAGEMENT  
Broadcast Suppression  
Device Type: 2H23-50R  
Firmware Revision:  
XX.XX.XX  
BOOTPROM Revision: XX.XX.XX  
PORT #  
Total RX  
Peak Rate  
150000  
150000  
150000  
150000  
150000  
150000  
150000  
150000  
150000  
150000  
Time Since Peak  
999:23:59  
999:23:59  
999:23:59  
999:23:59  
999:23:59  
999:23:59  
999:23:59  
999:23:59  
999:23:59  
999:23:59  
Threshold  
150000  
150000  
150000  
150000  
150000  
150000  
150000  
150000  
150000  
150000  
Reset Peak  
[NO]  
1
2
12345678910  
12345678910  
12345678910  
12345678910  
12345678910  
12345678910  
12345678910  
12345678910  
12345678910  
12345678910  
[NO]  
3
[NO]  
4
[NO]  
5
[NO]  
6
[NO]  
7
[NO]  
8
[NO]  
9
[NO]  
10  
[NO]  
RETURN  
RETURN  
SAVE  
EXIT  
22861-56  
Figure 5-23 Broadcast Suppression Screen  
2H23-50R/2H33-37R User’s Guide  
5-61  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Chapter 5: Local Management  
The following explains each field of the Broadcast Suppression screen:  
PORT # (Read-only)  
Identifies the number of the switched port. Ten ports are displayed in a  
2H23-50R and seven ports in a 2H33-37R. Table 5-6 shows the port  
organization.  
Table 5-7 CONN/Port Organization  
2H23-50R  
2H33-37R  
CONN 1 = Network Port 1, 10 Mbps  
Network Port 2, 100 Mbps  
CONN 1 = Network Port 1, 10 Mbps  
Network Port 2, 100 Mbps  
CONN 2 = Network Port 3, 10 Mbps  
Network Port 4, 100 Mbps  
CONN 2 = Network Port 3, 10 Mbps  
Network Port 4, 100 Mbps  
CONN 3 = Network Port 5, 10 Mbps  
Network Port 6, 100 Mbps  
CONN 3 = Network Port 5, 10 Mbps  
Network Port 6, 100 Mbps  
CONN 4 = Network Port 7, 10 Mbps  
Network Port 8, 100 Mbps  
HSIM = Port 7  
Fast Ethernet Slot 5 = Port 9  
Fast Ethernet Slot 6 = Port 10  
Total RX (Read-Only)  
Displays the total number of broadcast frames received.  
Peak Rate (Read-Only)  
Displays the highest number of broadcast frames received in a one second  
interval.  
Time Since Peak (Read-Only)  
Displays the time since peak rate was achieved.  
Threshold (Modifiable)  
Allows the user to set the desired limit of receive broadcast frames that  
will be forwarded per port per second.  
Reset Peak (Toggle)  
Enables the user to reset the Peak Rate. Resetting the Peak Rate also  
resets the Time Since Peak field. The Reset Peak field toggles between  
YES and NO.  
5-62  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
           
Broadcast Suppression Screen  
5.16.1 Setting the Threshold  
To set the Threshold, proceed as follows:  
1. Use the arrow keys to highlight the Threshold field for the selected  
port.  
2. Type in the numbers for the desired limit. Only enter values in  
increments of ten (for example; 10, 20, 30, etc.).  
3. Use the arrow keys to highlight the SAVE command at the bottom of  
the screen.  
4. Press ENTER. The message “SAVED OK” displays.  
5.16.2 Setting the Reset Peak  
To set the Reset Peak field to YES or NO, proceed as follows:  
1. Use the arrow keys to highlight the Reset Peak field for the selected  
port.  
2. Press the SPACE bar to select YES or NO.  
3. Use the arrow keys to highlight the SAVE command at the bottom of  
the screen.  
4. Press ENTER. The message “SAVED OK” displays and the Time  
Since Peak field is also reset.  
2H23-50R/2H33-37R User’s Guide  
5-63  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Chapter 5: Local Management  
5.17 THE VLAN MAIN MENU (802.1Q) SCREEN  
The VLAN Main Menu (802.1Q) screen, Figure 5-24, accesses VLAN  
functionality.  
The VLAN Main Menu screen is not available if the operational  
mode of the device is set to either 802.1D SWITCHING or  
NOTE  
SECURE FAST VLAN. This screen is only used by devices  
configured to operate as an 802.1Q switch.  
To access the 802.1Q VLAN Configuration screen from the Device  
Specific Configuration Menu screen, use the arrow keys to highlight the  
802.1Q VLAN CONFIGURATION menu item and press ENTER. The  
VLAN Main Menu (802.1Q) screen displays.  
2H23-50R LOCAL MANAGEMENT  
VLAN Main Menu  
DEVICE/VLAN CONFIGURATION  
PORT ASSIGNMENT  
VLAN FORWARDING CONFIGURATION  
EXIT  
RETURN  
2286-84  
Figure 5-24 VLAN Main Menu Screen  
Refer to the Cabletron Systems Port Based VLAN User’s Guide for  
information on 802.1Q VLAN and the associated configuration screens.  
5-64  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Repeater Configuration Menu Screen  
5.18 REPEATER CONFIGURATION MENU SCREEN  
The Repeater Configuration Menu screen, Figure 5-25, is used to access  
the Repeater Port Configuration, Repeater Level Security Configuration,  
or Port Level Security Configuration screen. To access the Repeater  
Configuration Menu screen from the Module Specific Configuration  
Menu screen, select the REPEATER CONFIGURATION MENU item  
and press ENTER. The Repeater Configuration Menu screen displays.  
2H23-50R LOCAL MANAGEMENT  
Repeater Configuration Menu  
Device Type: 2H23-50R  
Firmware Revision:  
XX.XX.XX  
Slot Number: X  
BOOTPROM Revision: XX.XX.XX  
REPEATER PORT CONFIGURATION  
DEVICE LEVEL SECURITY CONFIGURATION  
PORT LEVEL SECURITY CONFIGURATION  
EXIT  
RETURN  
2286_104  
Figure 5-25 Repeater Configuration Menu Screen  
2H23-50R/2H33-37R User’s Guide  
5-65  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Chapter 5: Local Management  
The following introduces each screen that is accessible from the Repeater  
Configuration Menu.  
REPEATER PORT CONFIGURATION  
Used to monitor the link status and current operating mode of each port  
on the 10-Mbps or 100-Mbps network of a front panel connector, and also  
turn each port on or off. For details, refer to Section 5.19.  
DEVICE LEVEL SECURITY CONFIGURATION  
Used to set the state of security for each port of a connector. All ports on a  
source address of the next frame received (LockOnNext), or lock on the  
address of the last frame received (LockedOnAddr). For details, refer to  
Section 5.20.  
PORT LEVEL SECURITY CONFIGURATION  
Used to set the security for all ports of a connector. For details, refer to  
Section 5.21.  
5.19 REPEATER PORT CONFIGURATION SCREEN  
The Repeater Port Configuration screen, Figure 5-26, is used to monitor  
the link status and current operating mode of each port on a 10-Mbps or  
100-Mbps network of a front panel connector. The screen is also used to  
change the operating mode, and turn each port on (enable) or off  
(disable).  
To access the Repeater Port Configuration screen, use the arrow keys to  
highlight the REPEATER PORT CONFIGURATION menu item from  
the Repeater Configuration Menu screen and press ENTER. The Repeater  
Port Configuration screen displays.  
5-66  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Repeater Port Configuration Screen  
Event Message Line  
2H23-50R LOCAL MANAGEMENT  
Repeater Port Configuration  
Device Type: 2H23-50R  
Slot Number: X  
Firmware Revision:  
XX.XX.XX  
BOOTPROM Revision: XX.XX.XX  
PORT# NETWORK#  
LINK STAT.  
CURRENT OPER.  
MODE DESIRED OPER. MODE PORT STAT.  
1
2
1
2
1
2
2
2
2
2
2
2
2
2
No Link  
No Link  
Link  
Unknown  
Unknown  
10Base-T  
Unknown  
Unknown  
Unknown  
Unknown  
Unknown  
Unknown  
Unknown  
Unknown  
Unknown  
[Auto-Neg]  
[Disabled]  
[Enabled]  
[Enabled]  
[Enabled]  
[Enabled]  
[Enabled]  
[Enabled]  
[Enabled]  
[Enabled]  
[Enabled]  
[Enabled]  
[Enabled]  
[Auto-Neg]  
[Auto-Neg]  
[Auto-Neg]  
[Auto-Neg]  
[Auto-Neg]  
[Auto-Neg]  
[Auto-Neg]  
[Auto-Neg]  
[Auto-Neg]  
[Auto-Neg]  
[Auto-Neg]  
3
4
No Link  
No Link  
No Link  
No Link  
No Link  
No Link  
No Link  
No Link  
No Link  
5
6
7
8
9
10  
11  
12  
SAVE  
SET ALL PORTS: [Auto-Neg]  
CONNECTOR #: [1]  
EXIT  
RETURN  
2286_111  
Figure 5-26 Repeater Port Configuration Screen  
The following are definitions for each field of the Repeater Port  
Configuration screen:  
PORT# (Read-only)  
Indicates the repeater port on the connector selected in the CONNECTOR  
field. Refer to Table 5-8 for the connector (CONN)/repeater port  
relationship on the device.  
Table 5-8 CONN/Repeater Port Relationship  
2H23-50R or 6H123-50  
2H33-37R or 6H133-37  
CONN 1 = Repeater ports 1 – 12  
CONN 2 = Repeater ports 13 – 24  
CONN 3 = Repeater ports 25 – 36  
CONN 4 = Repeater ports 37 – 48  
CONN 1 = Repeater ports 1 – 12  
CONN 2 = Repeater ports 13 – 24  
CONN 3 = Repeater ports 25 – 36  
2H23-50R/2H33-37R User’s Guide  
5-67  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Chapter 5: Local Management  
NETWORK# (Read-only)  
Indicates the network on the connector selected in the CONNECTOR  
field. Table 5-9 shows the association between the CONN and Network  
Ports on the device.  
Table 5-9 CONN/Port Organization  
2H23-50R or 6H123-50  
2H33-37R or 6H133-37  
CONN 1 = Network Port 1, 10 Mbps  
Network Port 2, 100 Mbps  
CONN 1 = Network Port 1, 10 Mbps  
Network Port 2, 100 Mbps  
CONN 2 = Network Port 3, 10 Mbps  
Network Port 4, 100 Mbps  
CONN 2 = Network Port 3, 10 Mbps  
Network Port 4, 100 Mbps  
CONN 3 = Network Port 5, 10 Mbps  
Network Port 6, 100 Mbps  
CONN 3 = Network Port 5, 10 Mbps  
Network Port 6, 100 Mbps  
CONN 3 = Network Port 7, 10 Mbps  
Network Port 8, 100 Mbps  
HSIM = Port 7  
LINK STAT. (Read-only)  
Displays the Link status (Link or No Link) of the port.  
CURRENT OPER. (Read-only)  
Displays the current operating mode of the port.  
MODE DESIRED OPER. (Selectable)  
This field steps through the following operating mode options: Auto-Neg  
(Auto Negotiation), 10Base-T, and 100Base-TX.  
When Auto-Neg. is selected, the port Auto-Negotiates with the device  
to which it is attached to determine its Operating Mode (10 Mbps or  
100 Mbps).  
When 10Base-T is selected, the port is forced to operate in standard  
Ethernet mode (10 Mbps) only.  
When 100Base-TX is selected, the port is forced to operate in Fast  
Ethernet mode (100 Mbps) only.  
To set the port operating mode, refer to Section 5.19.1.  
5-68  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
         
Repeater Port Configuration Screen  
MODE PORT STAT. (Toggle)  
Used to enable (turn on) or disable (turn off) the port. To set the port to  
operating mode, refer to Section 5.19.2.  
SET ALL PORTS (Selectable)  
Used to select operating mode for all the ports on the connector  
simultaneously. This field steps through the following selections:  
Auto-Neg., 10Base T, and 100Base-TX. To set all networks to the same  
operating mode, refer to Section 5.19.3.  
CONNECTOR # (Selectable)  
Selects the front panel connector to which the settings will be applied.  
5.19.1 Setting the Port Operating Mode  
To set the operating mode for one or more network ports, proceed as  
follows:  
1. Use the arrow keys to highlight the CONNECTOR # field.  
2. Use the SPACE bar to step to the appropriate connector number.  
3. Use the arrow keys to highlight the MODE DESIRED OPER. field  
of the network being configured.  
4. Use the SPACE bar to step to the appropriate Operating Mode  
(Auto-Neg, 10Base-T, or 100Base-TX).  
5. If setting the operating mode on other ports, repeat steps 3 and 4 for  
each one and then proceed to step 6.  
6. Use the arrow keys to highlight the SAVE command.  
7. Press ENTER. The message “SAVED OK” displays and all operating  
mode settings are saved.  
2H23-50R/2H33-37R User’s Guide  
5-69  
Download from Www.Somanuals.com. All Manuals Search And Download.  
         
Chapter 5: Local Management  
5.19.2 Enabling /Disabling Ports  
To enable or disable one or more ports, proceed as follows:  
1. Use the arrow keys to highlight the CONNECTOR # field.  
2. Use the SPACE bar to step to the number of the connector containing  
the network(s) to be enable or disabled.  
3. Use the arrow keys to highlight the MODE PORT STAT. field of the  
network being enabled or disabled.  
4. Use the SPACE bar to toggle to the appropriate setting (Enabled or  
Disabled).  
5. If setting more than one network, repeat steps 3 and 4 for each one and  
then proceed to step 6.  
6. Use the arrow keys to highlight the SAVE command.  
7. Press ENTER. The message “SAVED OK” displays and all settings  
are saved.  
5.19.3 Setting All Ports  
All the network ports on a connector can be set to the same operating  
mode simultaneously using the SET ALL PORTS field, as follows:  
1. Use the arrow keys to highlight the CONNECTOR # field.  
2. Use the SPACE bar to step to the appropriate connector number.  
3. Use the arrow keys to highlight the SET ALL PORTS field.  
4. Use the SPACE bar to step to the appropriate Operating Mode  
(Auto-Neg, 10Base-T, or 100Base-TX).  
5. Use the arrow keys to highlight the SAVE command.  
6. Press ENTER. The message “SAVED OK” displays and all networks  
of the connector are set to the selected operating mode.  
5-70  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
Device Level Security Configuration  
5.19.4 Enabling/Disabling Network Ports  
All the network ports on a connector can be set to the same operating  
mode simultaneously using the SET ALL PORTS field, as follows:  
1. Use the arrow keys to highlight the CONNECTOR # field.  
2. Use the SPACE bar to step to the appropriate connector number.  
3. Use the arrow keys to highlight the SET ALL PORTS field.  
4. Use the SPACE bar to step to the appropriate Operating Mode  
(Auto-Neg, 10Base-T, or 100Base-TX).  
5. Use the arrow keys to highlight the SAVE command.  
6. Press ENTER. The message “SAVED OK” displays and all networks  
of the connector are set to the selected operating mode.  
5.20 DEVICE LEVEL SECURITY CONFIGURATION  
The Device Level Security Configuration screen, Figure 5-27, is used to  
set the state of security according to connector. All ports on a connector  
can be set to receive all frames (NonSecure state), lock on the source  
address of the next frame received (LockOnNext) or the source address of  
the last frame received (LockedOnAddr). When either of the last two  
options are set, the switch can be set to enable or disable the reception of  
frames and send or not send traps.  
2H23-50R/2H33-37R User’s Guide  
5-71  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
Chapter 5: Local Management  
To access the Device Level Security Configuration screen, use the arrow  
keys to highlight the DEVICE LEVEL SECURITY  
CONFIGURATION menu item on the Repeater Configuration Menu  
screen and press ENTER. The Device Level Security Configuration  
screen displays.  
2H23-50R LOCAL MANAGEMENT  
Device Level Security Configuration  
Device Type: 2H23-50R  
Connector  
Firmware Revision:  
XX.XX.XX  
BOOTPROM Revision: XX.XX.XX  
Security State  
Action On Intruder  
1
2
3
4
[PortMismatch]  
[NonSecure]  
[NonSecure]  
[NonSecure]  
SAVE  
EXIT  
RETURN  
2286_112  
Figure 5-27 Device Level Security Configuration Screen  
The following section defines the fields on the Device Level Security  
Configuration screen.  
Connector (Read-Only)  
Indicates the connector. Refer to Table 5-10 for the connector  
(CONN)/repeater port relationship on the device.  
5-72  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Device Level Security Configuration  
Table 5-10 CONN/Repeater Port Relationship  
2H23-50R or 6H123-50  
2H33-37R or 6H133-37  
CONN 1 = Repeater ports 1 – 12  
CONN 2 = Repeater ports 13 – 24  
CONN 3 = Repeater ports 25 – 36  
CONN 4 = Repeater ports 37 – 48  
CONN 1 = Repeater ports 1 – 12  
CONN 2 = Repeater ports 13 – 24  
CONN 3 = Repeater ports 25 – 36  
Security State (Selectable)  
Used to select the state of security for frames received by any port on the  
connector. The states are as follows:  
PortMismatch – Indicates that not all ports on the connector are set to  
the same state.  
NonSecure – Allows the ports on the connector to receive all frames.  
The source address of received frames is not examined and the frames  
are processed in a non secure state.  
LockOnNext – The next frame received by each port is examined to  
learn its source address. As the source address of a frame is learned on  
a port, only those frames received with that same source address are  
processed on that port. Any other address detected is considered as an  
intruder and the device executes the actions selected in the Action On  
Intruder field.  
LockedOnAddr – The source address of the last frame received (or the  
source address entered in the Port Level Security Configuration  
screen, if one is entered) is used for security purposes. Once a secure  
address is defined on a port, only those frames received with that same  
source address are processed on that port. Any other frame detected  
with a different address is considered as an intruder, causing the device  
to execute the actions selected in the Action On Intruder field.  
2H23-50R/2H33-37R User’s Guide  
5-73  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Chapter 5: Local Management  
Action On Intruder (Toggle)  
Used to select the actions taken for the selected security state. There are  
two fields to select the actions. Both toggle to activate or deactivate the  
action.  
DisablePort/NoDisable – DisablePort causes the switch to turn off the  
port that had a security violation. With NoDisable set, the port is not  
turned off.  
SendTrap/NoTrap – SendTrap causes the switch to send an SNMP trap  
when a port detects a security violation. With NoTrap set, no SNMP  
trap is sent.  
5.20.1 Setting the Device Level Security  
To set module security for each connector, proceed as follows:  
1. Use the arrow keys to highlight the SECURITY STATE field for the  
connector.  
2. Use the SPACE bar to step to the appropriate security level.  
3. If the security level chosen causes the DisablePort and SendTrap  
fields to display under Action On Intruder, use the arrow keys to  
highlight the DisablePort field. If the security level chosen does not  
cause the fields to display under Action On Intruder, proceed to step 7.  
4. To change the DisablePort setting to NoDisable, press the SPACE  
bar to toggle the setting.  
5. Use the arrow keys to highlight the SendTrap field.  
6. To change the SendTrap setting to NoTrap, press the SPACE bar to  
toggle the setting.  
7. To change the security on more than one connector, repeat steps 1  
through 6 for each connector. Then proceed to step 8 to save all  
settings at once.  
8. Use the arrow keys to highlight the SAVE command.  
9. Press ENTER. The message “SAVED OK” displays and all ports of  
the connector are set to the selected operating mode.  
5-74  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Port Level Security Configuration Screen  
5.21 PORT LEVEL SECURITY CONFIGURATION  
SCREEN  
The Port Level Security Configuration screen, Figure 5-28, functions  
similarly to the Device Level Security Configuration screen, except that it  
is used to set the security of each port of a selected connector.  
To access the Port Level Security Configuration screen, use the arrow  
keys to highlight the PORT LEVEL SECURITY CONFIGURATION  
menu item on the Repeater Configuration Menu screen and press ENTER.  
The Port Level Security Configuration screen displays.  
Event Message Line  
2H23-50R LOCAL MANAGEMENT  
Port Level Security Configuration  
Device Type: 2H23-50R  
Slot Number: X  
Firmware Revision:  
XX.XX.XX  
BOOTPROM Revision: XX.XX.XX  
Po rt  
Network  
Security State  
Action On Intruder Address  
1
2
3
4
5
6
7
8
9
1
2
1
2
2
2
2
2
2
2
2
2
[LockOnNext]  
[NonSecure]  
[DisablePort] [SendTrap]  
[00-00-00-00-00-00]  
[xx.xx.xx.xx.xx.xx]  
[00-00-00-00-00-00]  
[00-00-00-00-00-00]  
[00-00-00-00-00-00]  
[00-00-00-00-00-00]  
[00-00-00-00-00-00]  
[00-00-00-00-00-00]  
[00-00-00-00-00-00]  
[00-00-00-00-00-00]  
[00-00-00-00-00-00]  
[LockedOnAddr] [DisablePort] [SendTrap]  
[NonSecure]  
[NonSecure]  
[NonSecure]  
[NonSecure]  
[NonSecure]  
[NonSecure]  
10  
11  
12  
[NonSecure]  
[NonSecure]  
[NonSecure]  
SAVE  
CONNECTOR #: [1]  
EXIT  
RETURN  
2286_113  
Figure 5-28 Port Level Security Configuration Screen  
2H23-50R/2H33-37R User’s Guide  
5-75  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Chapter 5: Local Management  
The following section defines the fields on the Port Level Security  
Configuration screen.  
Port (Read-only)  
Indicates the repeater port on the connector selected in the  
CONNECTOR # field. Refer to Table 5-11 for the connector/repeater port  
relationship on the device.  
Table 5-11 CONN/Repeater Port Relationship  
2H23-50R or 6H123-50  
2H33-37R or 6H133-37  
CONN 1 = Repeater ports 1 – 12  
CONN 2 = Repeater ports 13 – 24  
CONN 3 = Repeater ports 25 – 36  
CONN 4 = Repeater ports 37 – 48  
CONN 1 = Repeater ports 1 – 12  
CONN 2 = Repeater ports 13 – 24  
CONN 3 = Repeater ports 25 – 36  
Network (Read-only)  
Indicates the network to which the port is currently attached. Table 5-12  
shows the association between the CONN and Network on the device.  
Table 5-12 CONN/Network Organization  
2H23-50R or 6H123-50  
2H33-37R or 6H133-37  
CONN 1 = Network 1, 10 Mbps  
Network 2, 100 Mbps  
CONN 1 = Network 1, 10 Mbps  
Network 2, 100 Mbps  
CONN 2 = Network 3, 10 Mbps  
Network 4, 100 Mbps  
CONN 2 = Network 3, 10 Mbps  
Network 4, 100 Mbps  
CONN 3 = Network 5, 10 Mbps  
Network 6, 100 Mbps  
CONN 3 = Network 5, 10 Mbps  
Network 6, 100 Mbps  
CONN 3 = Network 7, 10 Mbps  
Network 8, 100 Mbps  
HSIM = Port 7  
5-76  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
Port Level Security Configuration Screen  
Security State (Selectable)  
Used to select the state of security for frames received by a specific port  
on the connector. The states are as follows:  
PortMismatch – Indicates that not all ports on the connector are set to  
the same state.  
NonSecure – Allows the ports on the connector to receive all frames.  
The source address of received frames is not examined and the frames  
are processed in a non secure state.  
LockOnNext – The next frame received by each port is examined to  
learn its source address. As the source address of a frame is learned on  
a port, only those frames received with that same source address are  
processed on that port. Any other address detected is considered as an  
intruder and the device executes the actions selected in the Action On  
Intruder field.  
LockedOnAddr – The source address of the last frame received (or the  
source address entered in the Port Level Security Configuration  
screen, if one is entered) is used for security purposes. Once a secure  
address is defined on a port, only those frames received with that same  
source address are processed on that port. Any other frame detected  
with a different address is considered as an intruder, causing the device  
to execute the actions selected in the Action On Intruder field.  
Action On Intruder (Toggle)  
Used to select the actions taken for the selected security state. There are  
two fields to select the actions. Both toggle to activate or deactivate the  
action.  
DisablePort/NoDisable – DisablePort causes the switch to turn off the  
port that had a security violation. With NoDisable set, the port is not  
turned off.  
SendTrap/NoTrap – SendTrap causes the switch to send an SNMP trap  
when a port detects a security violation. With NoTrap set, no SNMP  
trap is sent.  
2H23-50R/2H33-37R User’s Guide  
5-77  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Chapter 5: Local Management  
Address (Modifiable)  
Enables the user to enter an address to which the security function is  
applied. When the port detects any other address in a frame, the switch  
executes the action selected in the Action On Intruder field. When the  
security state setting is NonSecure, the field displays the source address of  
the last frame.  
CONNECTOR # (Selectable)  
This command field selects the front panel connector to which the port  
security settings will be applied.  
5.21.1 Setting the Port Level Security  
To set the security for each repeater port on a connector, proceed as  
follows:  
1. Use the arrow keys to highlight the CONNECTOR # field.  
2. Use the SPACE bar to step to the appropriate connector number.  
3. Use the arrow keys to highlight the SECURITY STATE field for a  
connector.  
4. Use the SPACE bar to step to the appropriate security level.  
5. If the security level chosen causes the DisablePort and SendTrap  
fields to display under Action On Intruder, use the arrow keys to  
highlight the DisablePort field. If the security level chosen does not  
cause the fields to display under Action On Intruder, proceed to step 9.  
6. To change the DisablePort setting to NoDisable, press the SPACE  
bar to toggle the setting.  
7. Use the arrow keys to highlight the SendTrap field.  
8. To change the setting to NoTrap, press the SPACE bar to toggle the  
setting.  
9. If the security state selected is LockedOnAddr, use the arrow keys to  
highlight the Address field for the port. Otherwise go to step 11.  
10. Enter the address to lock on.  
5-78  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Device Statistics Menu Screen  
11. To change the security on more than one connector, repeat steps 1  
through 9 for each connector. Then proceed to step 12 to save all  
settings at once.  
12. Use the arrow keys to highlight the SAVE command.  
13. Press ENTER. The message “SAVED OK” displays and all ports of  
the connector are set to the selected operating mode.  
5.22 DEVICE STATISTICS MENU SCREEN  
The Device Statistics Menu screen, Figure 5-29, provides access to  
screens that enable the user to obtain switch statistics about frame traffic  
The following menu item on the Device Statistics Menu screen  
does not display if the operational mode of the device is set to  
NOTE  
SECURE FAST VLAN:  
SWITCH STATISTICS  
Section 5.7.9 provides instructions on setting the operational  
mode.  
To access the Device Statistics Menu from the Device Menu screen, use  
the arrow keys to highlight the DEVICE STATISTICS menu item and  
press ENTER. The Device Statistics Menu screen displays.  
2H23-50R/2H33-37R User’s Guide  
5-79  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Chapter 5: Local Management  
Event Message Line  
2H23-50R LOCAL MANAGEMENT  
Device Statistics Menu  
Device Type: 2H23-50R  
Firmware Revision:  
XX.XX.XX  
BOOTPROM Revision: XX.XX.XX  
SWITCH STATISTICS  
INTERFACE STATISTICS  
RMON STATISTICS  
REPEATER STATISTICS  
RETURN  
EXIT  
22861-67  
Figure 5-29 Device Statistics Menu Screen  
The Device Statistics Menu screen displays the following menu items:  
SWITCH STATISTICS  
transmitted, filtered, and forwarded by each network port. For details,  
refer to Section 5.23.  
INTERFACE STATISTICS  
The Interface Statistics screen provides the MIB-II statistics for each  
switched network interface, on a interface-by-interface basis. For details,  
refer to Section 5.24.  
RMON STATISTICS  
The RMON Statistics screen displays all the statistics gathered by the  
embedded RMON agent built-in to the 2H23-50R or 2H33-37R. For  
details, refer to Section 5.25.  
5-80  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Switch Statistics Screen  
REPEATER STATISTICS  
The Repeater Statistics screen provides the operating statistics for each  
Network port (1 through 8 for the 2H23-50R, or 1 through 6 for the  
2H33-37R). This screen also displays the statistics for each repeater port.  
For details, refer to Section 5.26.  
5.23 SWITCH STATISTICS SCREEN  
The Switch Statistics screen, Figure 5-30, lists the number of frames  
received, transmitted, filtered, and forwarded by each network port.  
The Switch Statistics screen is not available if the operational  
mode of the device is set to SECURE FAST VLAN.This screen  
NOTE  
may only be used when the device is configured to operate as  
an 802.1D or 802.1Q switch.  
To access the Switch Statistics screen from the Device Statistics Menu  
screen, use the arrow keys to highlight the SWITCH STATISTICS  
menu item and press ENTER. The Switch Statistics screen displays.  
Event Message Line  
2H23-50R LOCAL MANAGEMENT  
Switch Statistics  
Device Type: 2H23-50R  
Firmware Revision:  
XX.XX.XX  
BOOTPROM Revision: XX.XX.XX  
Port #  
Frames Rcvd  
Frames Txmtd  
Frames Fltrd  
Frames Frwded  
1
2
3
4
5
6
7
100  
100  
100  
100  
100  
100  
100  
100  
100  
100  
100  
100  
100  
100  
0
0
0
0
0
0
0
100  
100  
100  
100  
100  
100  
100  
CLEAR COUNTERS  
EXIT  
RETURN  
22861-26  
Figure 5-30 Switch Statistics Screen  
2H23-50R/2H33-37R User’s Guide  
5-81  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Chapter 5: Local Management  
The Switch Statistics screen displays the following fields:  
Port # (Read-Only)  
Identifies the port. There can be ten or seven ports depending on whether  
the device is a 2H23-50R or 2H33-37R, respectively. Table 5-13 shows  
the port organization.  
Table 5-13 CONN/Port Organization  
2H23-50R  
2H33-37R  
CONN 1 = Network Port 1, 10 Mbps  
Network Port 2, 100 Mbps  
CONN 1 = Network Port 1, 10 Mbps  
Network Port 2, 100 Mbps  
CONN 2 = Network Port 3, 10 Mbps  
Network Port 4, 100 Mbps  
CONN 2 = Network Port 3, 10 Mbps  
Network Port 4, 100 Mbps  
CONN 3 = Network Port 5, 10 Mbps  
Network Port 6, 100 Mbps  
CONN 3 = Network Port 5, 10 Mbps  
Network Port 6, 100 Mbps  
CONN 4 = Network Port 7, 10 Mbps  
Network Port 8, 100 Mbps  
HSIM = Port 7  
Fast Ethernet Slot 5 = Port 9  
Fast Ethernet Slot 6 = Port 10  
Frames Rcvd (Read-Only)  
Displays the number of frames received by the port since last power-up or  
reset.  
Frames Txmtd (Read-Only)  
Displays the number of frames transmitted by the port since last power-up  
or reset.  
Frames Fltrd (Read-Only)  
Displays the number of frames filtered by the port since last power-up or  
reset.  
Frames Frwded (Read-Only)  
Displays the number of frames forwarded by the port.  
5-82  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
           
Interface Statistics Screen  
CLEAR COUNTERS (Command)  
This command clears all the counters of the displayed ports to zero. To  
clear the counters, use the arrow keys to highlight CLEAR COUNTERS  
at the bottom of the screen, then press ENTER.  
5.24 INTERFACE STATISTICS SCREEN  
The Interface Statistics screen, Figure 5-31, is used to gather MIB-II  
statistics for all the 2H23-50R or 2H33-37R interfaces with the exception  
of an installed HSIM in a 2H33-37R.  
Cabletron Systems HSIMs gather their own statistics that may  
be viewed via the Local Management screens of the applicable  
NOTE  
HSIM. Refer to your HSIM documentation for information on  
how to access these screens.  
To access the Interface Statistics screen, use the arrow keys to highlight  
the INTERFACE STATISTICS menu item on the Device Statistics  
Menu screen and press ENTER. The Interface Statistics screen displays.  
Event Message Line  
2H23-50R LOCAL MANAGEMENT  
Interface Statistics  
Device Typee: 2H23-50R  
Interface: 1  
Firmware Revision:  
XX.XX.XX  
BOOTPROM Revision: XX.XX.XX  
Name: Ethernet Frontpanel  
InOctets:  
7500456  
Address:  
00-00-00-00-00-00  
xx days 00:00:00  
Up  
InUnicast:  
6789  
Last Change:  
Admin Status:  
Oper Status:  
InNonUnicast:  
InDiscards:  
InErrors:  
0
0
0
0
0
0
0
0
0
0
Down  
InUnknownProtos:  
OutOctets:  
MTU:  
1514  
Speed:  
100000000  
OutUnicast:  
OutNonUnicast:  
OutDiscards:  
OutErrors:  
Link Status:  
No Link  
Duplex Mode:  
Standard  
OutQLen:  
CLEAR COUNTERS  
Interface: [nn]  
EXIT  
RETURN  
22861_64  
Figure 5-31 Interface Statistics Screen  
2H23-50R/2H33-37R User’s Guide  
5-83  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
Chapter 5: Local Management  
screen:  
Interface (Read-Only)  
This field displays the Interface number for which statistics are currently  
being displayed. Figure 5-31 shows the Interface field displaying 1. This  
represents the 10 Mbps interface of CONN 1. To view other interface  
statistics, refer to Section 5.24.1.  
Name (Read-Only)  
The Name field displays the type of interface for which statistics are  
being displayed.  
InOctets (Read-Only)  
This field displays the total number of octets (bytes) that have been  
received on the Interface. This includes all octets including bad frames  
and framing characters.  
InUnicast (Read-Only)  
The InUnicast field displays the total number of frames that have been  
received that were sent to a single address.  
InNonUnicast (Read-Only)  
This field displays the total number of frames that have been received that  
were delivered to a broadcast or multicast address.  
InDiscards (Read-Only)  
The InDiscards field displays the total number of inbound frames that  
were discarded, even though the frames contained no errors. This field  
may increment because it was in an initialization phase and not ready to  
forward frames, the switch needed to free up buffer space, or the switch  
was being overutilized.  
InErrors (Read-Only)  
This field displays the total number of inbound frames that have been  
discarded because they contained errors. This field represents the total  
number of errored frames, regardless of the cause of the error.  
InUnknownProtos (Read-Only)  
The InUnknownProtos field displays the total number of frames that were  
discarded because the frames were in an unknown or unsupported format.  
5-84  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
               
Interface Statistics Screen  
OutOctets (Read-Only)  
This field displays the total number of octets (bytes) that have been  
transmitted from the interface.  
OutUnicast (Read-Only)  
The OutUnicast field displays the total number of frames transmitted that  
were sent to a single address.  
OutNonUnicast (Read-Only)  
This field displays the total number of frames transmitted to a broadcast  
or multicast address.  
OutDiscards (Read-Only)  
The OutDiscards field displays the total number of outbound frames that  
were discarded, even though the frames contained no errors. This field  
may increment, because the switch needed to free up buffer space, or the  
switch was being overutilized.  
OutErrors (Read-Only)  
This field displays the total number of outbound frames discarded  
because they contained errors. This field represents the total number of  
errored frames, regardless of the cause of the error.  
OutQLen (Read-Only)  
The OutQLen field displays the length of the frame queue. The field  
represents the total number of frames that can be held in queue.  
Address (Read-Only)  
This field displays the MAC address of the interface that is currently  
being displayed.  
Last Change (Read-Only)  
This field displays the last time that the interface was reset.  
Admin Status (Read-Only)  
This field displays the current status of the interface. If this field displays  
“Testing”, no frames may be passed on this interface.  
Oper Status (Read-Only)  
This field displays the current status of the interface. If this field displays  
“Testing”, no frames may be passed on this interface.  
2H23-50R/2H33-37R User’s Guide  
5-85  
Download from Www.Somanuals.com. All Manuals Search And Download.  
                   
Chapter 5: Local Management  
MTU (Read-Only)  
The MTU field displays the maximum frame size (in octets) that a frame  
may contain to be received or transmitted from this interface.  
Speed (Read-Only)  
The Speed field displays the theoretical maximum of the interface’s  
bandwidth in bits per second.  
Link Status (Read-Only)  
This field displays the current link status of the interface. This field  
displays either “Link” or “No Link”.  
Duplex Mode (Read-Only)  
This field indicates whether the interface is operating in normal (standard)  
or full duplex mode. This field displays either “Standard” or “Full  
Duplex”.  
Interface [nn] (Command)  
This command is used to enter an interface number for viewing statistics.  
For instructions on how to use this command, refer to Section 5.24.1.  
CLEAR COUNTERS (Command)  
This command is used to reset all statistic counters to zero. For details on  
how to use this field, refer to Section 5.24.2.  
5.24.1 Displaying Interface Statistics  
To display the statistics for any interface, proceed as follows:  
1. Use the arrow keys to highlight the Interface [nn] field at the bottom  
of the screen.  
2. Press the SPACE bar to increment (or press the DEL [delete] key to  
decrement) the interface number.  
3. Press ENTER (neither the Interface # fields nor the statistics change  
until ENTER is pressed).  
5-86  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
               
RMON Statistics Screen  
5.24.2 Using the Clear Counters Command  
To reset all the statistics counters of the selected interface to zero, perform  
the following steps:  
1. Use the arrow keys to highlight the CLEAR COUNTERS command  
field.  
2. Press ENTER, the counters for the selected interface are reset to zero.  
5.25 RMON STATISTICS SCREEN  
RMON statistics for each network port, on an port-by-port basis, are  
viewed through the RMON Statistics screen shown in Figure 5-32.  
Access the RMON Statistics screen by using the arrow keys to highlight  
the RMON STATISTICS field on the Device Statistics Menu screen and  
pressing ENTER. The RMON Statistics screen displays.  
Event Message Line  
2H23-50R LOCAL MANAGEMENT  
RMON Statistics  
Device Type: 2H23-50R  
Firmware Revision:  
XX.XX.XX  
BOOTPROM Revision: XX.XX.XX  
RMON Index:  
Data Source:  
X
Owner: monitor  
Status: valid  
IfIndex.1  
Drop Events:  
Collisions:  
0
0
0
0
0
0
0
0
0
Total Packets:  
Total Octets:  
64 Octets:  
0
0
0
0
0
0
0
0
Broadcast Pkts:  
Multicasts:  
65  
-
127 Octets:  
255 Octets:  
511 Octets:  
1023 Octets:  
CRC Align Errors:  
Undersized Pkts:  
Oversized Pkts:  
Fragments:  
128  
256  
512  
-
-
-
1024 - 1518 Octets:  
Jabbers:  
CLEAR COUNTERS  
Index: [nn]  
EXIT  
RETURN  
22861_65  
Figure 5-32 RMON Statistics Screen  
2H23-50R/2H33-37R User’s Guide  
5-87  
Download from Www.Somanuals.com. All Manuals Search And Download.  
         
Chapter 5: Local Management  
The following briefly defines each field of the RMON Statistics screen:  
RMON Index (Read-only)  
This field displays the current Ethernet interface for which statistics are  
being shown. The 2H23-50R or 2H33-37R has an embedded RMON  
agent that gathers statistics for each of its interfaces.  
Data Source (Read-only)  
This field displays the source of the statistics data that is currently being  
displayed on the screen. Figure 5-32 shows that the data source for this  
RMON index is Interface 1 (Network Port 1, 10 Mbps of CONN 1) by  
displaying the name IfIndex.1. If the screen was displaying RMON  
statistics for Interface 4 (Network Port 4, 100 Mbps of CONN 2), the  
name displayed would be IfIndex.4. Table 5-14 shows the association  
between the CONN and Network Ports for the 2H23-50R and 2H33-37R.  
Table 5-14 CONN/Network Interfaces  
2H23-50R  
2H33-37R  
CONN 1 = Network Port 1, 10 Mbps  
Network Port 2, 100 Mbps  
CONN 1 = Network Port 1, 10 Mbps  
Network Port 2, 100 Mbps  
CONN 2 = Network Port 3, 10 Mbps  
Network Port 4, 100 Mbps  
CONN 2 = Network Port 3, 10 Mbps  
Network Port 4, 100 Mbps  
CONN 3 = Network Port 5, 10 Mbps  
Network Port 6, 100 Mbps  
CONN 3 = Network Port 5, 10 Mbps  
Network Port 6, 100 Mbps  
CONN 4 = Network Port 7, 10 Mbps  
Network Port 8, 100 Mbps  
Owner (Read-only)  
This field displays the name of the entity that configured this entry.  
Status (Read-only)  
The Status field displays the current operating status of the displayed  
interface. This field displays “valid” or “invalid”.  
5-88  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
         
RMON Statistics Screen  
Drop Events (Read-only)  
This field displays the total number of times that the RMON agent was  
forced to discard frames due to the lack of available switch resources.  
The Drop Events field does not display the number of frames  
dropped, it only displays the number of times that the RMON  
NOTE  
agent was forced to discard frames. Drop events are a normal  
occurrence during switch initialization.  
Collisions (Read-only)  
This field displays the total number of collisions that have occurred on  
this interface.  
Broadcast Pkts (Read-only)  
The Broadcast Pkts field displays the total number of good frames that  
were directed to the broadcast address. The value of this field does not  
include multicast frames.  
Multicasts (Read-only)  
The Multicast field displays the total number of good frames received that  
were directed to a multicast address. The value of this field does not  
include frames directed to the broadcast address.  
CRC Align Errors (Read-only)  
This field displays the number of frames with bad Cyclic Redundancy  
Checks (CRC) received from the network. The CRC is a 4-byte field in  
the data frame that ensures that the data received is the same as the data  
that was originally sent.  
Undersized Pkts (Read-only)  
The Undersized Pkts field displays the number of frames received whose  
size was less than the minimum Ethernet frame size of 64 bytes, not  
including preamble, but have a valid CRC.  
Oversized Pkts (Read-only)  
The Oversized Pkts field displays the number of frames received whose  
size exceeded 1518 data bytes, not including preamble, but having a valid  
CRC.  
2H23-50R/2H33-37R User’s Guide  
5-89  
Download from Www.Somanuals.com. All Manuals Search And Download.  
             
Chapter 5: Local Management  
Fragments (Read-only)  
This field displays the number of received frames that are not the  
minimum number of bytes in length or received frames that had a bad  
CRC, were less than 64 bytes in length (excluding framing bits, but  
including CRC bytes).  
It is normal for the Fragments field to increment. This is  
because the RMON agent increments the field when runts are  
NOTE  
detected (which are normal occurrences due to collisions) and  
when noise hits occur.  
Jabbers (Read-only)  
This field displays the total number of frames that were greater than 1518  
bytes and a bad CRC.  
Total Packets (Read-only)  
This field displays the total number of frames (including bad frames,  
broadcast frames, and multicast frames) received on this interface.  
Total Octets (Read-only)  
This field displays the total number of octets (bytes) of data, including  
those in bad frames, received on this interface.  
64 Octets (Read-only)  
Displays the total number of frames, including bad frames, received that  
were 64 bytes in length (excluding framing bits, but including FCS bytes).  
65 – 127 Octets (Read-only)  
Displays the total number of frames, including bad frames, received that  
were between 65 and 127 bytes in length (excluding framing bits, but  
including FCS bytes).  
128 – 255 Octets (Read-only)  
Displays the total number of frames, including bad frames, received that  
were between 128 and 255 bytes in length (excluding framing bits, but  
including FCS bytes).  
256 – 511 Octets (Read-only)  
Displays the total number of frames, including bad frames, received that  
were between 256 and 511 bytes in length (excluding framing bits, but  
including FCS bytes).  
5-90  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
               
RMON Statistics Screen  
512 – 1023 Octets (Read-only)  
Displays the total number of frames, including bad frames, received that  
were between 512 and 1023 bytes in length (excluding framing bits, but  
including FCS bytes).  
1024 – 1518 Octets (Read-only)  
Displays the total number of frames, including bad frames, received that  
were between 1024 and 1518 bytes in length (excluding framing bits, but  
including FCS bytes).  
Index [nn] (Command)  
This command is used to enter an index number for viewing statistics. For  
instructions on how to use this command, refer to Section 5.25.1.  
CLEAR COUNTERS (Command)  
This command is used to reset all statistic counters to zero. For details on  
how to use this command, refer to Section 5.25.2.  
5.25.1 Displaying RMON Statistics  
To display the statistics for any index, proceed as follows:  
1. Use the arrow keys to highlight the Index [nn] field at the bottom of  
the screen.  
2. Press the SPACE bar to increment (or press the DEL [delete] key to  
decrement) the index number.  
3. Press ENTER (neither the RMON Index # field nor the statistics  
change until ENTER is pressed).  
5.25.2 Using the Clear Counters Command  
To reset all the statistics counters of the selected interface to zero, perform  
the following steps:  
1. Use the arrow keys to highlight the CLEAR COUNTERS field.  
2. Press ENTER, the counters for the selected index are reset to zero.  
2H23-50R/2H33-37R User’s Guide  
5-91  
Download from Www.Somanuals.com. All Manuals Search And Download.  
               
5.26 REPEATER STATISTICS SCREEN  
Operating statistics for each repeater port (1 through 48 for the  
2H23-50R, or 1 through 36 for the 2H33-37R) and its corresponding  
network interface are displayed via the Repeater Statistics screen shown  
in Figure 5-33.  
To access the Repeater Statistics screen, use the arrow keys to highlight  
the REPEATER STATISTICS menu item on the Device Statistics  
Menu screen and press ENTER. The Repeater Statistics screen displays.  
Event Message Line  
2H23-50R LOCAL MANAGEMENT  
Repeater Statistics  
Device Name: 2H23-50R  
Firmware Revision:  
XX.XX.XX  
BOOTPROM Revision: XX.XX.XX  
Network #: xx  
Port #: xx  
Bytes Received:  
Frames received:  
Total Errors:  
7500456  
7500456  
6789  
6789  
0
0
Collisions:  
0
0
OOW Collisions:  
CRC Errors:  
0
0
0
0
Alignment Errors:  
Undersize Packets:  
Oversize Packets  
Broadcasts  
0
0
0
0
0
0
0
0
0
Multicasts:  
0
Link Status:  
Link  
No Link  
Disabled  
Admin Status:  
Enabled  
NETWORK #: xx  
PORT #: xx  
RETURN  
CLEAR COUNTERS  
EXIT  
22862-29  
Figure 5-33 Repeater Statistics Screen  
The following describes each field of the Repeater Statistics screen:  
Network # (Read-Only)  
Indicates the current network port (1 through 8, for the 2H23-50R or 1  
through 6, for the 2H33-37R) for which statistics are displayed. This field  
is automatically set by selecting a port number in the PORT # command  
field at the bottom of the screen. For example, if 4 is selected in the PORT  
# command field, the statistics for Network 4 (CONN 2, 100 Mbps  
Network Port) displays along with the statistics for the selected port.  
5-92  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
Repeater Statistics Screen  
Table 5-15 shows the association between the CONN and Network Ports  
for the 2H23-50R and 2H33-37R.  
Table 5-15 CONN/Network Interfaces  
2H23-50R  
2H33-37R  
CONN 1 = Network Port 1, 10 Mbps  
Network Port 2, 100 Mbps  
CONN 1 = Network Port 1, 10 Mbps  
Network Port 2, 100 Mbps  
CONN 2 = Network Port 3, 10 Mbps  
Network Port 4, 100 Mbps  
CONN 2 = Network Port 3, 10 Mbps  
Network Port 4, 100 Mbps  
CONN 3 = Network Port 5, 10 Mbps  
Network Port 6, 100 Mbps  
CONN 3 = Network Port 5, 10 Mbps  
Network Port 6, 100 Mbps  
CONN 4 = Network Port 7, 10 Mbps  
Network Port 8, 100 Mbps  
Port # (Read-Only)  
Indicates the current repeater port for which statistics are displayed. The  
port number can be changed by using the PORT # command field at the  
bottom of the screen. Depending on the port number entered, the  
Network # field will automatically change to indicate the associated  
Network Port. Table 5-16 shows CONN/repeater port relationship.  
Table 5-16 CONN/Repeater Port Relationship  
2H23-50R  
2H33-37R  
CONN 1 = Repeater ports 1 – 12  
CONN 2 = Repeater ports 13 – 24  
CONN 3 = Repeater ports 25 – 36  
CONN 4 = Repeater ports 37 – 48  
CONN 1 = Repeater ports 1 – 12  
CONN 2 = Repeater ports 13 – 24  
CONN 3 = Repeater ports 25 – 36  
For details on how to use this field, refer to Section 5.26.2.  
Bytes Received (Read-only)  
Displays the number of bytes received.  
Frames Received (Read-only)  
Displays the number of frames received.  
2H23-50R/2H33-37R User’s Guide  
5-93  
Download from Www.Somanuals.com. All Manuals Search And Download.  
         
Chapter 5: Local Management  
Total Errors (Read-only)  
Displays the total number of errors.  
Collisions (Read-only)  
Displays the total number of collisions that were detected.  
OOW Collisions (Read-only)  
Displays the number of Out Of Window (OOW) collision errors detected.  
These collisions can be caused by a station on the network violating  
Carrier Sense and transmitting at will, a cable failure occurring during the  
transmission of a frame, or a network propagation delay greater than  
51.2 µs.  
CRC Errors (Read-only)  
Displays the number of frames with bad Cyclic Redundancy Checks  
(CRC) received from the network. The CRC is a 4-byte field in the data  
frame that ensures that the data that is received is the same as the data that  
was originally sent.  
Alignment Errors (Read-only)  
Displays the number of alignment errors detected. Alignment errors occur  
when the total number of bits in a frame are not divisible by eight due to  
missing bits in the bytes contained in the frame.  
Undersize Packets (Read-only)  
Displays the number of frames received with a valid CRC and whose size  
was less than the minimum Ethernet frame size of 64 bytes (not including  
the preamble).  
Oversize Packets (Read-only)  
Displays the number of frames received with a valid CRC and whose size  
exceeded 1518 data bytes (not including preamble).  
Broadcasts (Read-only)  
Displays the number of broadcasts transmitted and received.  
Multicasts (Read-only)  
Displays the number of multicasts transmitted and received.  
Link Status (Read-only)  
Indicates if the network or port is linked (Link) or not linked (No Link).  
5-94  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
                   
Repeater Statistics Screen  
Admin Status (Read-only)  
Indicates if the network or port is enabled (Enabled) or disabled  
(Disabled).  
NETWORK # (Command)  
This command is used to select a particular Network to view its statistics.  
When the Network is selected the statistics are also displayed for the first  
port in the Network under Port #. For details, refer to Section 5.26.1  
PORT # (Command)  
This command is used to select a particular Port to view its statistics and  
those of its associated Network. For details, refer to Section 5.26.2.  
CLEAR COUNTERS (Command)  
This command sets all statistics counters to zero. For details on how to  
use this command, refer to Section 5.26.3.  
5.26.1 Displaying Network Statistics  
To display the statistics of any Network, proceed as follows:  
1. Use the arrow keys to highlight the NETWORK # command field at  
the bottom of the screen.  
2. Press the SPACE bar to increment or press the BACKSPACE key to  
decrement the port number.  
3. Press ENTER (the NETWORK #, the first PORT # of the Network,  
and the associated statistics do not display until ENTER is pressed).  
5.26.2 Displaying Network Port Statistics  
To display the statistics for any repeater port, proceed as follows:  
1. Use the arrow keys to highlight the PORT # command field at the  
bottom of the screen.  
2. Press the SPACE bar to increment or press the BACKSPACE key to  
decrement the port number.  
3. Press ENTER (the PORT #, the NETWORK # of the associated  
network, and the statistics do not change until ENTER is pressed).  
2H23-50R/2H33-37R User’s Guide  
5-95  
Download from Www.Somanuals.com. All Manuals Search And Download.  
               
Chapter 5: Local Management  
5.26.3 Using the Clear Counters Command  
To reset all the statistics counters of the selected port to zero, perform the  
following steps:  
1. Use the arrow keys to highlight the CLEAR COUNTERS command  
field at the bottom of the screen.  
2. Press ENTER. The counters for the selected port are reset to zero.  
5.27 NETWORK TOOLS  
The Network Tools function allows the user to access and manage  
network devices. Figure 5-34 shows the Network Tools help screen.  
To access the Network Tools screen, use the arrow keys to highlight the  
NETWORK TOOLS menu item in the Device Menu screen and press  
ENTER. The Network Tools screen displays.  
Welcome to Network Tools  
-> help  
Commands Available to User  
Built in Commands:  
bridge  
ping  
defroute  
reset  
arp  
netstat  
show  
traceroute  
telnet  
soft_reset  
link_trap  
atm_stp_state  
SPECIAL:  
done, quit, or exit - Exit from the Network Tools.  
For help with a specific command, type 'help <command>'.  
->  
090829  
Figure 5-34 Network Tools Screen  
The Network Tools functions are performed using a series of commands.  
Entering commands in Network Tools involves typing the command to be  
executed at the Network Tools prompt, adding any desired or required  
extensions, and pressing ENTER.  
5-96  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
           
Network Tools  
There are two categories of commands in the command set.  
Built-in Commands Allow the user to access and manage network  
devices. The commands are arp, bridge, defroute, netstat, ping,  
reset, show, traceroute, soft-reset, telnet, link_trap, and  
atm_stp_state.  
Special Commands Allow the user to exit from Network Tools. The  
commands are done, exit, and quit.  
The conventions used in describing the commands in Network  
Tools are as follows:  
NOTES  
Arguments enclosed by [ ] are required.  
Arguments enclosed by < > are optional.  
In the following command examples, the information entered by  
the user is shown in bold Helvetica font.  
To abort the output or interrupt a process, press the CONTROL  
key and c key simultaneously, designated as ^C here.  
The commands are presented in the following format:  
command:  
Syntax:  
Shows the required command format. It  
indicates where arguments, if any, must be  
specified.  
Description:  
Options:  
Briefly describes the command and its uses.  
Lists any additional fields in the appropriate  
format which may be added to the command.  
Example:  
Shows an example of the command.  
2H23-50R/2H33-37R User’s Guide  
5-97  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Chapter 5: Local Management  
5.27.1 Built-in Commands  
The built-in commands listed in this section activate functions on the LM  
managed device or devices being accessed through Network Tools.  
arp:  
Syntax:  
arp <options>  
Description:  
The arp command provides access to the ARP  
(Address Resolution Protocol) cache, enabling  
you to view cache data, delete entries, or add a  
static route. Super-user access is required to  
delete an entry or add a static route.  
Each ARP cache entry lists the network  
interface that the device is connected to, the  
device’s network address or IP address, the  
device’s physical address or MAC address, and  
the media type of connection to the device.  
Media types display as numbers, which stand  
for the following states:  
1 - Other  
2 - Invalid entry (cannot ping device, timed out,  
etc.)  
3 - Dynamic route entry  
4 - Static route entry (not subject to change)  
You can specify the arp command without options, or with one of the  
following options:  
Options:  
-a Views cache data  
-d Deletes an IP address entry. Requires  
additional arguments: <Interface Number>  
<IP address>  
-s Adds a static entry. Requires additional  
arguments: <Interface Number> <IP address>  
<MAC address>  
-f Flushes the ARP cache  
5-98  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Network Tools  
Example:  
-> arp -a  
Media Type  
3(dynamic)  
3(dynamic)  
3(dynamic)  
3(dynamic)  
# Interface  
# (SonicInt)  
# (SonicInt)  
# (SonicInt)  
# (SonicInt)  
Network Address  
122.144.40.111  
122.144.48.109  
122.144.52.68  
122.144.21.43  
Physical Address  
00.00.0e.12.3c.04  
00.00.0e.f3.3d.14  
00.00.0e.12.3c.04  
00.00.0e.03.1d.3c  
-> arp -d 1 122.144.52.68  
-> arp -s 1 22.44.2.3 00:00:0e:03:1d:3c  
-> arp -f  
05141-67  
bridge:  
Syntax:  
bridge [ENABLE/DISABLE] [IFNUM/ALL]  
Description:  
The bridge command allows the bridge  
interface to be enabled or disabled at the user’s  
request, either one at a time or all at once.  
Specifying a single interface number will affect  
the bridging status of that interface, while  
specifying ALL will affect every interface.  
Options:  
Not Applicable  
Example:  
-> bridge disable all  
-> bridge enable 1  
-> bridge disable 1  
05141-68  
2H23-50R/2H33-37R User’s Guide  
5-99  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Chapter 5: Local Management  
defroute:  
Syntax:  
defroute  
defroute [interface number] [IP address]  
defroute delete [interface number] [IP address]  
Description:  
The defroute command allows the user, in the  
syntax order shown above, to view, set, or  
delete the default IP route to a managed device  
through the specified interface.  
Options:  
Not Applicable  
Example:  
-> defroute 2 147.152.42.32  
05141-69  
netstat:  
Syntax:  
netstat [option]  
Description:  
The netstat command provides a display of  
general network statistics for the managed  
device. The netstat command must be used with  
one of the two display options.  
Options:  
-i Displays status and capability information for  
each interface.  
-r Displays routing information for each  
interface.  
5-100  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Network Tools  
Example:  
-> netstat -i  
Speed  
Interface + Description  
Admin Oper MAC Addr  
MTU  
10000000  
10000000  
10000000  
10000000  
# 1 (ethernet -csmacd)  
# 2 (ethernet - csmacd)  
# 3 (ethernet - csmacd)  
# 4 (ethernet - csmacd)  
up  
up  
up  
up  
up  
up  
up  
up  
0x00 0x00 0x1d 0x07 0x50 0x0e  
0x00 0x00 0x1d 0x07 0x50 0x0f  
0x00 0x00 0x1d 0x07 0x50 0x10  
0x00 0x00 0x1d 0x07 0x50 0x11  
1514  
1514  
1514  
1514  
-> netstat -r  
Destination  
Next-hop  
Interface  
# Default Route  
# 134.141.0.0  
# 134.141.0.0  
DirectConnection  
DirectConnection  
DirectConnection  
1
2
3
05141-70  
ping:  
Syntax:  
Description:  
ping [IP address]  
The ping command generates an outbound ping  
request to check the status (alive/not alive) of a  
device at a specified IP address.  
Options:  
Not Applicable  
Example:  
-> ping 122.144.40.10  
122.144.40.10 is alive  
05141-71  
2H23-50R/2H33-37R User’s Guide  
5-101  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Chapter 5: Local Management  
reset:  
Syntax:  
reset  
Description:  
This reset command initiates a hardware reset  
of the device. The reset command initializes the  
CPU processor, runs the onboard diagnostics,  
and restarts the software image, which restores  
the user configuration settings from NVRAM.  
The user will be queried to confirm the reset  
command to ensure against unwanted resets.  
The Network Tools connection to the device will be terminated  
upon execution of this command.  
TIP  
Options:  
Not Applicable  
Example:  
-> reset  
17421-45  
show:  
Syntax:  
show <PROTOCOL> <TABLE>  
Description:  
The show command displays information  
concerning various components of the device.  
Protocols currently supported are IP, IPX,  
DECnet, and AppleTalk. Components of those  
protocols that are currently supported are ARP  
caches, route tables, FIB tables, server tables,  
and interface tables. The number of valid  
entries in the table will be displayed at the end  
of the table display.  
Options:  
Not Applicable  
5-102  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Network Tools  
Example:  
-> show Appletalk interfaces  
AdminStatus  
enabled  
disabled  
# Interface  
# 1  
# 2  
MTU Forwarding  
1500 enabled  
1500 disabled  
OperStatus  
enabled  
disabled  
Framing  
ethernet  
ethernet  
-> show IP ARP  
MediaType  
3 (dynamic)  
3 (dynamic)  
# Interface  
# 3  
# 4  
NetworkAddress  
123.456.40.1  
123.456.40.30  
PhysicalAddress  
00:00:1d:04:40:5d  
08:00:20:0e:d8:31  
17421-46  
traceroute:  
Syntax:  
traceroute [IP address]  
Description:  
The traceroute command generates a  
TRACEROUTE request to a specified IP  
address and provides a display of all next-hop  
routers in the path to the device. If the device is  
not reached, the command displays all next-hop  
routers to the point of failure.  
Options:  
Not Applicable  
Example:  
-> traceroute 122.144.11.52  
# next-hop[0] : 122.144.60.45  
# next-hop[1] : 122.144.8.113  
# next-hop[2] : 122.144.61.45  
# 122.144.11.52 is alive : 3 hops away.  
05141-77  
2H23-50R/2H33-37R User’s Guide  
5-103  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Chapter 5: Local Management  
soft_reset  
Syntax:  
soft_reset  
Description:  
This command restarts the software image,  
which restores the user configuration settings  
from NVRAM. The user will be queried to  
confirm the reset command to ensure against  
unwanted resets.  
The Network Tools connection to the device will be terminated  
upon execution of this command.  
TIP  
Options:  
Not Applicable  
Example:  
-> soft-reset  
22511-76  
telnet:  
Syntax:  
telnet [IP address] [Port #]  
Description:  
The telnet command allows the user to  
communicate with another host (that supports  
Telnet connections) using the Telnet protocol.  
The user must specify the remote host using its  
IP address. The [IP address] field is mandatory.  
If no Port number is specified, telnet will  
attempt to contact the host at the default port.  
Options:  
Not Applicable  
5-104  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Network Tools  
Example:  
-> telnet 134.141.12.345  
Trying 134.141.12.345  
Connected to 134.141.12.345  
SunOS UNIX (server1)  
login:  
2251-77  
link_trap:  
Syntax:  
link_trap [enable/disable/status] [PORT/all]  
Description:  
The link_trap command allows link traps to be  
enabled or disabled when specifying a single  
port, or simultaneously when specifying “all”  
or no ports. When one or all ports are specified  
to enable, disable, or find their status, their  
current condition is displayed.  
Options:  
Not Applicable  
Example:  
-> link_trap status  
LINK TRAP STATUS:  
Port 1 is ENABLED  
Port 3 is ENABLED  
Port 2 is DISABLED  
Port 4 is ENABLED  
-> link_trap disable 2  
Link traps have been DISABLED on port 2  
-> link_trap disable all  
Link traps have been DISABLED on all ports (1-24)  
-> link_trap status 3  
Link traps are ENABLED on port 3  
2314-78  
2H23-50R/2H33-37R User’s Guide  
5-105  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Chapter 5: Local Management  
atm_stp_state:  
The atm_stp_state command is only available if an  
NOTE  
HSIM-A6DP is installed in the device (e.g., 6E13X-25). This  
command allows the user to enable, disable, or check the  
current status of the Spanning Tree Algorithm on all ATM  
interfaces.  
Syntax:  
atm_stp_state [STATE]  
Description:  
The atm_stp_state command allows the user to  
enable, disable, or check the status of the  
Spanning Tree Algorithm on all ATM  
interfaces. The user must specify the STATE  
option as enable, disable, or status. The STATE  
field is mandatory.  
Options:  
enable, disable, status  
Example:  
-> atm_stp_state status  
Atm Stp is Enabled  
-> atm_stp_state disable  
-> atm_stp_state enable  
2314-79  
5-106  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Network Tools  
5.27.2 Special Commands  
done, quit, exit:  
Syntax:  
done, quit, or exit  
Description:  
The done, quit, or exit command enables the  
user to exit from Network Tools and return to  
the Main Menu screen.  
Options:  
Not Applicable  
Example:  
-> done  
Connection closed  
05141-72  
2H23-50R/2H33-37R User’s Guide  
5-107  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Chapter 5: Local Management  
5-108  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
APPENDIX A  
SPECIFICATIONS  
This appendix provides operating specifications for the 2H23-50R and  
2H33-37R. Cabletron Systems reserves the right to change these  
specifications at any time without notice.  
A.1 DEVICE SPECIFICATIONS  
Processor:  
Intel i960 RISC processor  
20 MB  
Dynamic Random Access  
Memory (DRAM):  
FLASH Memory:  
4 MB  
A.2 PHYSICAL PROPERTIES  
Dimensions:  
7.11H x 43.18W x 46.99D (cm)  
2.8H x 17W x 18.5D (in)  
Weight (Unit) 2H23-50R:  
Weight (Unit) 2H33-37R:  
MTBF (Predicted):  
3.18 kg (7 lb)  
5.45 kg (12 lb)  
200,000 hours  
2H23-50R/2H33-37R User’s Guide  
A-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
               
Appendix A: Specifications  
A.3 ELECTRICAL SPECIFICATIONS  
Line Input Range  
Volts (V)  
Input Current  
Amperes (A)  
Frequency  
Hertz (Hz)  
Input Power  
Volt Amps (VA)  
100–125 Vac  
200–240 Vac  
2.0 A  
1.0 A  
50/60 Hz  
200 VA  
A.4 ENVIRONMENTAL REQUIREMENTS  
Operating Temperature:  
Storage Temperature:  
5°C to 40°C (41°F to 104°F)  
-30°C to 73°C (-22°F to 164°F)  
Operating Relative Humidity: 5% to 90% (non-condensing)  
A.5 INPUT/OUTPUT PORTS  
2E23-50R – CONN 1 through Ethernet (10BASE-T and 100BASE-TX  
CONN 4 (ports 1 through 4) or compliant) with RJ21 type connectors.  
2E33-37R – CONN 1 through Each connector provides connection for  
CONN 3 (ports 1 through 3): 12 UTP ports. Each port can operate on  
either a 10 Mbps or 100 Mbps segment.  
Each port has auto-negotiation  
capability to establish maximum  
transmission speed (10 Mbps or  
100 Mbps).  
2E23-50R – Slots for optional Slots accept three types of optional Fast  
Fast Ethernet Interface  
Modules (ports 5 and 6):  
Ethernet Interface Modules:  
FE100-TX, FE100-FX, and FE100-F3.  
2E33-37R – Slot for optional Slot accepts optional High Speed  
HSIM:  
Interface Modules.  
A-2  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
COM Port Pinout Assignments  
A.6 COM PORT PINOUT ASSIGNMENTS  
The COM port is a serial communications port that supports Local  
Management or connection to a UPS.  
Table A-1 shows the COM port pin assignments.  
Table A-1 COM Port Pin Assignments  
Pin  
Signal Name  
Input/Output  
1
2
3
4
5
6
7
8
Transmit Data (XMT)  
Output  
Output  
Input  
Input  
NA  
Data Carrier Detect (DCD)  
Data Set Ready (DSR)  
Receive Data (RCV)  
Signal Ground (GND)  
Data Terminal Ready (DTR)  
Request to Send (RTS)  
Clear to Send (CTS)  
Output  
Input  
NA  
A.7 REGULATORY COMPLIANCE  
This equipment meets the following safety and electromagnetic  
compatibility (EMC) requirements:  
Safety  
EMC  
UL 1950, CSA C22.2 No. 950,  
EN 60950, IEC 950, and 73/23/EEC.  
FCC Part 15, EN 55022, CSA C108.8,  
EN 50082-1, AS/NZS 3548,  
VCCI V-3, and 89/336/EEC.  
2H23-50R/2H33-37R User’s Guide  
A-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
         
Appendix A: Specifications  
A-4  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
APPENDIX B  
SPECIFICATIONS  
The 2H23-50R supports three Fast Ethernet Interface Modules:  
FE-100TX (Section B.1)  
FE-100FX (Section B.2)  
FE-100F3 (Section B.3)  
This appendix provides the specifications for these modules.  
B.1 FE-100TX  
The FE-100TX uses an RJ45 connector supporting Category 5  
Unshielded Twisted Pair (UTP) cabling.  
To ensure proper operation, use only Category 5 Unshielded  
NOTE  
and 111 ohms.  
The slide switch on the FE-100TX determines the crossover status of the  
cable pairs. If the switch is on the X side, the pairs are internally crossed  
over. If the switch is on the = side, the pairs are not internally crossed  
over. Figure B-1 shows the pinouts for the FE-100TX in both positions.  
Position X  
(crossed over)  
Position =  
(not crossed over)  
1. RX+  
2. RX-  
3. TX+  
4. NC  
5. NC  
6. TX-  
7. NC  
8. NC  
5. NC  
6. RX-  
7. NC  
8. NC  
1. TX+  
2. TX-  
3. RX+  
4. NC  
x
=
10  
100  
FE-100TX  
16651_05  
Figure B-1 FE-100TX RJ45 Pinouts  
2H23-50R/2H33-37R User’s Guide  
B-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
               
Appendix B: FE-100TX, FE-100FX, and FE-100F3 Specifications  
B.2 FE-100FX  
The FE-100FX shown in Figure B-2 uses an SC style connector that  
supports multimode fiber optic cabling. Specifications for the FE-100FX  
are listed in Table B-1, below.  
FE-100FX  
6
5
2286-40  
Figure B-2 FE-100FX  
Table B-1 Transmitter Power  
Cable Type  
Worst Case Budget  
Typical Budget  
50/125 µm fiber optic  
62.5/125 µm fiber optic  
100/140 µm fiber optic  
6.0 dB  
9.0 dB  
15.0 dB  
9.0 dB  
12.0 dB  
18.0 dB  
The transmitter power levels and receive sensitivity levels listed  
are peak power levels after optical overshoot. A peak power  
meter must be used to correctly compare the values given  
above to those measured on any particular port. If power levels  
are being measured with an average power meter, add 3 dB to  
the measurement to compare the measured values to the  
values listed above.  
NOTE  
B-2  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
FE-100F3  
B.3 FE-100F3  
The FE-100F3 shown in Figure B-3 uses an SC style connector that  
supports single mode fiber optic cabling. Specifications for the FE-100F3  
are listed in Table B-2, below.  
FE-100f3  
6
5
2286-68  
Figure B-3 FE-100F3  
Table B-2 Transmitter Power  
Cable Type  
Worst Case Budget  
Typical Budget  
8/125 µm fiber optic  
>10.0 dB  
>10.0 dB  
<10.0 dB  
<10.0 dB  
12.5/125 µm fiber optic  
The transmitter power levels and receive sensitivity levels listed  
are peak power levels after optical overshoot. A peak power  
meter must be used to correctly compare the values given  
above to those measured on any particular port. If power levels  
are being measured with an average power meter, add 3 dB to  
the measurement to compare the measured values to the  
values listed above.  
NOTE  
2H23-50R/2H33-37R User’s Guide  
B-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
Appendix B: FE-100TX, FE-100FX, and FE-100F3 Specifications  
B-4  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
APPENDIX C  
OPTIONAL INSTALLATIONS AND  
MODE SWITCH BANK SETTINGS  
ONLY QUALIFIED SERVICE PERSONNEL SHOULD  
ATTEMPT THE FOLLOWING PROCEDURES.  
NUR QUALIFIEZIERTE SERVICE PERSONNAL DIE  
FOLGENDE PROCEDURE FOLGEN SOLLTEN.  
SOLAMENTE PERSONAL CALIFICADO DEBE INTENTAR  
ESTE PROCEDIMIENTO.  
and to install the Fast Ethernet Interface Modules and the High Speed  
Interface Module.  
This appendix covers the following items:  
Required tools (Section C.1)  
Removing the chassis cover (Section C.2)  
Locations, functions, and settings for the mode switches  
(Section C.2.1)  
Installing Optional Fast Ethernet Interface Modules (Section C.3)  
C.1 REQUIRED TOOLS  
You need the following tools to perform the procedures provided in this  
appendix:  
Antistatic wrist strap  
Phillips screwdriver  
2H23-50R/2H33-37R User’s Guide  
C-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
           
Appendix C: Optional Installations and Mode Switch Bank Settings  
C.2 REMOVING THE CHASSIS COVER  
This section describes how to remove the 2H23-50R/2H33-37R chassis  
cover.  
DO NOT REMOVE THE COVER FROM THE  
2H23-50R/2H33-37R WHILE POWER IS APPLIED TO THE  
UNIT. HAZARDOUS VOLTAGES ARE PRESENT AND COULD  
CAUSE PERSONAL INJURY AND/OR DAMAGE THE UNIT.  
DO NOT POWER UP THE 2H23-50R/2H33-37R AGAIN UNTIL  
THE COVER AND SCREWS ARE IN PLACE.  
DECKEL VON DAS 2H23-50R/2H33-37R NICHT ABZIEHEN  
UNTER SPANNUNG. GEFAHR FÜR DAS PERSONNAL  
UND/ODER DAS GERÄT WEGEN GEFÄHRLICHE  
SPANNUNGEN ENSTEHT.  
2H23-50R/2H33-37R NICHEINSCHALTEN SO LANG DER  
DECKEL UND SCHRAUBEN NICHT EINGEBAUT SIND.  
NO DEBE DE REMOVER LA TAPA DURENTE QUE ESTE  
CONELTADO A LA CORRIENTE, UNA DESCARGA  
ELECTRICA LE PUEDE CAUSAR Y PROBOCARLE DAÑOS,  
AL IGUAL QUE AL APARATO.  
NO ENCHUFE A LA CORRIENTE HASTA QUE LA TAPA Y  
LOS TORNILLOS ESTEN EN SU LUGAR.  
C-2  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
Removing the Chassis Cover  
CAUTION:THIS UNIT MAY HAVE MORE THAN ONE POWER  
SUPPLY CORD. DISCONNECT TWO POWER SUPPLY  
CORDS BEFORE SERVICING TO AVOID ELECTRIC SHOCK.  
VORSICHT: DIESES GERÄT HAT MEHR ALS EINEN  
NETZANSCHLUß. TRENNEN SIE VOR  
WARTUNGSARBEITEN DIE 2 NET ZANSCHLÜSSE VOM  
NETZ, UM ELEKTRISCHE SCHLÄGE ZU VERMEIDEN.  
ATTENTION: CET APPAREIL COMPORTE PLUS D’UN  
CORDON D’ALIMENTATION. RAFIN DE PREVENIR LES  
CHOCS ELECTRIQUES, DEGRANCHER LES DEUX  
CORDONS D’ALIMENTATION AVANT DE FAIRE LE  
DEPANNAGE.  
To remove the chassis cover, proceed as follows:  
1. Disconnect the 2H23-50R or 2H33-37R from the network as follows:  
a. Unplug both power cords from the rear of the chassis.  
TURN OFF THE 2H23-50R/2H33-37R BY UNPLUGGING THE  
POWER CORD FROM THE REAR OF THE CHASSIS.  
AM HINTEN DES 2H23-50R/2H33-37R STECHEI ABZIEHEN  
UM AUS ZU SCHALTEN.  
APAGUE EL 2H23-50R/2H33-37R DESENCHUFE EL CABLE  
DE LA UNIDAD.  
Before performing step b, mark the cables connected to the  
recommended for ease of reinstallation.  
TIP  
b. Disconnect all network cables attached to the device.  
2. If the device is rack mounted, remove it from the rack and remove the  
rackmount brackets (refer to Chapter 3, Optional Installations and  
Mode Switch Bank Settings).  
2H23-50R/2H33-37R User’s Guide  
C-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Appendix C: Optional Installations and Mode Switch Bank Settings  
3. Use a Phillips screwdriver to remove the screws attaching the cover to  
the chassis. (See Figure C-1.)  
4. Remove the cover by sliding it back until it clears the front of the  
chassis and then lifting it straight up and off the chassis.  
To reinstall the chassis cover, perform the removal procedures in reverse.  
Chassis  
Cover  
Cover Screws (7)  
Chassis  
Front  
Panel  
front panel are removed and installed along with the rackmount brackets.  
2286-3  
Figure C-1 Removing the Chassis Cover  
C.2.1 Setting the Mode Switches  
Figure C-2 shows the location of the mode switches and the switch  
settings for normal operation. These switches are set at the factory and do  
not need to be changed.  
C-4  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Removing the Chassis Cover  
TOP VIEW WITHOUT COVER  
Primary  
Power  
Supply  
Redundant  
Power  
Supply  
MODE SWITCH BANK  
Flash  
8
7
6
5
4
3
2
1
OFF  
ON  
DRAM  
22861-05  
FRONT PANEL  
Figure C-2 Mode Switch Location/Component Layout  
Switch definitions and positions are as follows:  
Switches 1 through 4 – For Cabletron Systems use only.  
Switch 5 – COM Port Autobaud. The default (OFF) position enables  
Autobaud sensing on the COM port for Local Management sessions.  
Changing the switch to the ON position disablesAutobaud sensing and  
sets the COM port to 9600 baud for Local Management sessions.  
Switch 6 – Forced BootP. Do NOT attempt a Forced BootP unless a  
BootP server has been configured for the 2H23-50R or 2H33-37R. The  
BootP server references the location of a station acting as a Trivial File  
Transfer Protocol (TFTP) server containing the image file. When the  
position of Switch 6 is changed and the power is cycled to the device,  
the device requests the image file location from the BootP server and  
uses TFTP to download the image from the TFTP server. If one of  
these requirements is not met, the device continues to request either  
the BootP server or the TFTP server until the RESET button on the  
device is pressed. Once the RESET button is pressed, the device resets  
after one minute and loads the image stored in FLASH memory.  
2H23-50R/2H33-37R User’s Guide  
C-5  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Appendix C: Optional Installations and Mode Switch Bank Settings  
Switch 7 – Clear NVRAM. Changing the position of this switch resets  
NVRAM on the next power-up. All user-entered parameters, such as  
the IP address, device names, etc., are reset to the factory default  
settings. Once the device resets, you can either use the factory default  
settings or reenter your own parameters.  
Switch 8 – Reset Password/Community names. Changing the position  
of this switch clears user-entered passwords stored in NVRAM, and  
restores the factory default passwords on the next power-up. Once the  
device resets, you can either use the factory default settings or reenter  
your own passwords.  
Do not change the position of switch 8 unless it is necessary to  
reset the module super-user configured passwords to their  
factory default settings.  
NOTE  
C-6  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Installing Optional Fast Ethernet Interface Modules  
C.3 INSTALLING OPTIONAL FAST ETHERNET  
INTERFACE MODULES  
Figure C-3 shows the locations of the Fast Ethernet Interface Module  
connectors for ports 5 and 6 on the 2H23-50R, and the High Speed  
Interface Module on the 2H33-37R.  
TOP VIEWS WITHOUT COVER  
Primary  
Power  
Supply  
Redundant  
Power  
Supply  
Connectors  
FRONT PANEL  
2H23-50R  
Optional Fast Ethernet  
Interface Modules  
Primary  
Power  
Supply  
Redundant  
Power  
Supply  
Connector  
FRONT PANEL  
2H33-27R  
Optional interface  
modules on HSIM  
22861-11  
Figure C-3 Fast Ethernet Interface Module Connector Location  
2H23-50R/2H33-37R User’s Guide  
C-7  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Appendix C: Optional Installations and Mode Switch Bank Settings  
The installation instructions for the High Speed Interface  
Modules are in the associated user’s guide.  
NOTE  
To install a Fast Ethernet Interface Module in port slot 5 or 6 of the  
2H23-50R, proceed as follows:  
The FE-100F3 uses Class 1 lasers. Do not use optical  
instruments to view the laser output. The use of optical  
instruments to view laser output increases eye hazard. When  
viewing the output optical port, power must be removed from  
the network adapter.  
!
CAUTION  
The Fast Ethernet Interface Module and the 2H23-50R are  
sensitive to static discharges. Use an antistatic wrist strap and  
observe all static precautions during this procedure. Failure to  
do so could damage the module or the 2H23-50R.  
!
CAUTION  
When installing Fast Ethernet Interface Modules in both port  
slots 5 and 6, remove the coverplates from both slot openings.  
In the following instructions, the optional module is shown  
being installed in port slot 6.  
TIP  
1. Remove the coverplate from the port slot where the Fast Ethernet  
Interface Module is to be installed. Refer to Figure C-4 and proceed as  
follows:  
a. Remove the two screws fastening the coverplate to the standoffs.  
Save the screws.  
b. Lift and remove the coverplate from the top of the front standoffs.  
C-8  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Installing Optional Fast Ethernet Interface Modules  
Coverplate  
Rear  
Standoff  
Front  
Standoffs  
5
6
2286-38  
Figure C-4 Coverplate Removal  
When installing an FE-100FX or FE-100F3 module into the  
2H23-50R, remove the rubber plug on the module before  
proceeding.  
!
CAUTION  
3. See Figure C-5. Gently pull the faceplate of the 2H23-50R forward to  
allow room for the Fast Ethernet Interface Modules to be aligned over  
the connector.  
In the following step, take care when inserting the Fast Ethernet  
Interface Module into the Motherboard connector, so that the  
pins do not bend. Otherwise, the Fast Ethernet Interface Board  
and the Motherboard could be damaged.  
!
CAUTION  
2H23-50R/2H33-37R User’s Guide  
C-9  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Appendix C: Optional Installations and Mode Switch Bank Settings  
4. Carefully lower the Fast Ethernet Interface Module onto the standoffs  
while inserting the module connector into the associated motherboard  
connector.  
Module  
Module  
Connector  
10  
100  
FE-100TX  
Rear  
Standoff  
Motherboard  
Connector  
Front  
Standoffs  
5
6
22861-39  
Figure C-5 Installing the Fast Ethernet Interface Module  
5. Press down firmly on the Fast Ethernet Interface Module until the pins  
slide all the way into the motherboard connector. Ensure that the Fast  
Ethernet Interface Module seats flush on the standoffs.  
6. Secure the Fast Ethernet Interface Module with the screws saved in  
steps 1 and 2.  
7. Reinstall the cover.  
C-10  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Crossover switch B-1  
Numerics  
10BASE-T  
connection 3-9  
length 2-2  
D
screen 5-15  
requirements 2-1  
2H23-50R and 2H33-37R  
front panel 1-2  
802.1D switching  
802.1Q switching  
setting operational mode for 5-26  
action on intruder 5-74  
connector 5-72  
A
Access policy 5-34  
Age time 5-40  
Auto-Negotiation 1-4  
B
Broadcast Suppression screen 5-61  
peak rate 5-62  
port # 5-62  
Environmental requirements A-2  
reset peak 5-62  
threshold 5-62  
time since peak 5-62  
total RX 5-62  
Built-in Commands  
use of 5-97  
F
C
Cable specifications  
100BASE-FX MMF 2-2  
100BASE-T network 2-1  
100BASE-TX network 2-2  
Chassis cover, removal of C-2  
CLEAR 5-95  
download serverIP 5-54  
last image file name 5-54  
last image serverIP 5-54  
reboot after download 5-54  
TFTP gateway IP addr 5-54  
Fragmentation 5-20  
COM port 5-28  
configuration of 5-28  
pin assignments A-3  
COM Port Application 5-30  
Command set 5-97  
Connecting to the network 3-8  
2H23-50R/2H33-37R User’s Guide  
Index-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Index  
G
application 5-20  
clear NVRAM 5-20  
com 5-20  
default gateway 5-18, 5-23  
device date 5-18  
IP address 5-18, 5-21  
IP fragmentation 5-20  
MAC address 5-17  
OutDiscards 5-85  
OutErrors 5-85  
OutOctets 5-85  
OutQLen 5-85  
Operational Mode 5-19  
screen lockout time 5-19, 5-26  
screen refresh time 5-18, 5-25  
subnet mask 5-18, 5-22  
Getting Help 1-10  
Interface Statistics screen  
H
screen 5-47  
advertised ability 5-50  
FE-100F3 5-50  
configuring an FE-100TX 5-51  
current operational mode 5-49  
desired operational mode 5-49  
link status 5-48  
port type 5-48  
setting the FE-100FX 5-50  
setting the FE-100TX 5-51  
L
LANVIEW LEDs 4-1  
introduction to 1-6  
I
Installation  
Interface Statistics Screen  
admin status 5-85  
CLEAR COUNTERS 5-86  
duplex mode 5-86  
InDiscards 5-84  
use of 1-6  
Management Terminal  
COM port connection of 5-3, 5-4  
setup of 5-3, 5-5  
Mode Switch  
InErrors 5-84  
setting C-4  
InNonUnicast 5-84  
Index-2  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
network 5-76  
N
Port Redirect Function screen  
destination port 5-59  
source port 5-59  
Network connection  
FE-100FX/FE-100F3 3-13  
FX-100TX 3-10  
Network Connections 3-8  
Network Tools  
built-in commands 5-97  
arp 5-98  
atm_stp_state 5-106  
bridge 5-99  
defroute 5-100  
netstat 5-100  
ping 5-101  
reset 5-102  
show 5-102  
mode 5-70  
soft_reset 5-104  
telnet 5-104  
traceroute 5-103  
description of 5-96  
special commands 5-97  
done 5-107  
exit 5-107  
quit 5-107  
R
Related manuals 1-11  
Network Tools screen  
accessing of 5-96  
NVRAM  
screen 5-66  
connector # 5-69  
clearing of 5-30  
network # 5-68  
O
Operational Mode 5-26  
Operational Mode, setting of 5-26  
P
Repeater Statistics screen  
administration status 5-95  
alignment errors 5-94  
broadcasts transmitted/  
received 5-94  
Password screen 5-8  
Passwords 5-33  
Physical properties A-1  
Port Level Security Configuration  
screen 5-75  
bytes received 5-93  
CLEAR COUNTERS 5-95  
action on intruder 5-77  
address 5-78  
2H23-50R/2H33-37R User’s Guide  
Index-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Index  
collisions 5-94  
CRC errors 5-94  
frames received 5-93  
link status 5-94  
multicasts transmitted/  
received 5-94  
NETWORK # 5-95  
network # 5-92  
OOW collisions 5-94  
oversize packets 5-94  
PORT # 5-95  
screen 5-15  
port # 5-93  
total errors 5-94  
undersize packets 5-94  
RESET button 4-8  
RMON Statistics screen  
1024 – 1518 octets 5-91  
128 – 255 octets 5-90  
256 – 511 octets 5-90  
512 – 1023 octets 5-91  
64 octets 5-90  
65 – 127 5-90  
65 – 127 octets 5-90  
broadcast pkts 5-89  
CLEAR COUNTERS 5-91  
collisions 5-89  
CRC align errors 5-89  
data source 5-88  
drop events 5-89  
fragments 5-90  
index 5-91  
jabbers 5-90  
multicasts 5-89  
oversize packets 5-89  
owner 5-88  
RMON index 5-88  
status 5-88  
SNMP Community Names  
screen 5-33  
SNMP Traps screen 5-36  
Switch Configuration screen 5-38  
Switch Statistics screen 5-81  
System Resources screen 5-45  
VLAN Main Menu screen 5-64  
SecureFast VLAN  
total octets 5-90  
total packets 5-90  
undersize packets 5-89  
Runtime IP address discovery 1-5  
setting operational mode for 5-26  
Index-4  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Security  
setting at the port level 5-78  
Setup of  
management terminal 5-5  
SmartTrunk  
Switch Statistics screen 5-81  
frames fltrd 5-82  
introduction to 1-5  
SNMP Community Names  
setting of 5-33  
access policy 5-34  
community name 5-34  
SNMP Traps screen 5-36  
enable traps 5-37  
trap community name 5-36  
trap destination 5-36  
trap table configuration 5-37  
Spanning Tree Algorithm 5-40  
Special commands  
use of 5-97  
Tools 5-107  
Specifications A-1  
Standards compatibility 1-7  
Subnet mask 5-18, 5-22  
Switch address 5-39  
age time 5-40, 5-42  
MAC address 5-41  
number of ports 5-39  
port # 5-40  
connection of 5-7  
Unpacking 3-2  
port status 5-42  
selecting the STA 5-42  
state 5-41  
status 5-41  
switch address 5-39  
type of STA 5-40  
V
VLAN  
configuration of 5-44  
VLAN Main Menu screen 5-64  
2H23-50R/2H33-37R User’s Guide  
Index-5  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Index  
Index-6  
2H23-50R/2H33-37R User’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  

Belkin Video Game Controller F8GFPC100ea User Manual
Billy Goat Vacuum Cleaner VQ1002SP User Manual
Black Decker Coffeemaker CO75 User Manual
Bose Speaker System 151 User Manual
Brainboxes Network Card UC 420 User Manual
Briggs Stratton Lawn Mower 20G400 User Manual
Brinkmann Home Safety Product INS 800 2200 B User Manual
Campbell Hausfeld Nail Gun NS219001 User Manual
Carrier Weather Radio 39B User Manual
Chamberlain Garage Door Opener 2585 3 4 HP User Manual