Cabletron Systems Switch 2E48 27R User Manual

2E48-27R/2E49-27R

SmartSwitch 2200

User’s Guide

TX RX

PWR

CPU

RESET

COM

TX RX

2E48-27R

TX RX

PWR

CPU

RESET

COM

TX RX

2E49-27R

9032314-04

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

Printed in the United States of America

Order Number: 9032314-04 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

2E48-27R/2E49-27R User’s Guide

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.

CABLETRON SOFTWARE PROGRAM LICENSE

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

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.

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Notice

EXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITY

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.

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.

2E48-27R/2E49-27R 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

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.

2E48-27R/2E49-27R 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

Principal Compliance Engineer

Managing Director - E.M.E.A.

___________________________________

Title

Rochester, NH, USA

Newbury, Berkshire, England

___________________________________

Location

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Notice

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

CONTENTS

CHAPTER 1

INTRODUCTION

1.1 Using This Guide......................................................................... 1-1

1.2 Structure of This Guide................................................................ 1-1

1.3 2E4X-27R Overvie w .................................................................... 1-2

1.3.1 Connectivity .................................................................... 1-4

1.3.2 Full Duplex Switched Ethernet........................................ 1-4

1.3.3 SmartTrun k ..................................................................... 1-4

1.3.4 Runtime IP Address Discover y ....................................... 1-5

1.3.5 Managemen t ................................................................... 1-5

1.3.6 Switching Option s ........................................................... 1-6

1.3.7 Standards Compatibility.................................................. 1-6

1.3.8 Year 2000 Complian t ...................................................... 1-6

1.3.9 LANVIEW Diagnostic LED s............................................ 1-6

1.3.10 Optional Features ........................................................... 1-7

1.4 Document Conventions ............................................................... 1-8

1.5 Getting Help................................................................................. 1-9

CHAPTER 2

NETWORK REQUIREMENTS

2.1 SmartTrunk.................................................................................. 2-1

2.2 10BASE-F Network ..................................................................... 2-1

2.3 FOIRL Fiber Optic Network ......................................................... 2-2

2.4 100BASE-TX Networ k ................................................................. 2-2

2.5 100BASE-FX Fiber Optic Network .............................................. 2-2

CHAPTER 3

INSTALLATION

3.1 Unpacking the 2E4X-27 R ............................................................ 3-1

3.2 Installing Options......................................................................... 3-2

3.3 Installing the Device .................................................................... 3-3

3.3.1 Tabletop or Shelf Installation .......................................... 3-3

3.3.2 Rackmount Installation ................................................... 3-4

3.3.3 Connecting Power to the 2E4X-27 R ............................... 3-7

3.4 Connecting to the Network .......................................................... 3-8

3.4.1 Connecting Fiber Optic Cables to Ports 1

Through 24 ..................................................................... 3-9

3.4.2 Connecting a UTP Segment to the FE-100TX.............. 3-10

3.4.3 Connecting a Fiber Optic Segment to the

FE-100FX and FE-100F3 ............................................. 3-12

3.5 Completing the Installation ........................................................ 3-14

2E48-27R/2E49-27R User’s Guide

vii

Download from Www.Somanuals.com. All Manuals Search And Download.

Contents

CHAPTER 4

TROUBLESHOOTING

4.1 Using LANVIEW...........................................................................4-1

4.2 FE-100TX LED.............................................................................4-4

4.3 Troubleshooting Checklist............................................................4-6

4.4 Using the RESET Button .............................................................4-7

CHAPTER 5

LOCAL MANAGEMENT

5.1 Overview......................................................................................5-1

5.2 Local Management Keyboard Convention s .................................5-2

5.3 Management Terminal Setup.......................................................5-3

5.3.1 Console Cable Connection..............................................5-4

5.3.2 Management Terminal Setup Parameters ......................5-5

5.3.3 Telnet Connections .........................................................5-6

5.3.4 Monitoring an Uninterruptible Power Suppl y ...................5-7

5.4 Accessing Local Managemen t .....................................................5-8

5.4.1 Navigating Local Management Screens..........................5-9

5.4.2 Selecting Local Management Menu Screen Items........5-11

5.4.3 Exiting Local Management Screens..............................5-11

5.5 Device Menu Screen..................................................................5-13

5.6 Device Configuration Menu Screen ...........................................5-14

5.7 General Configuration Screen ...................................................5-17

5.7.1 Setting the IP Address...................................................5-20

5.7.2 Setting the Subnet Mask ...............................................5-21

5.7.3 Setting the Default Gateway..........................................5-23

5.7.4 Setting the TFTP Gateway IP Address .........................5-23

5.7.5 Setting the Device Date.................................................5-24

5.7.6 Setting the Device Time ................................................5-25

5.7.7 Entering a New Screen Refresh Time...........................5-25

5.7.8 Setting the Screen Lockout Time ..................................5-26

5.7.9 Setting the Operational Mode........................................5-26

5.7.10 Configuring the COM Por t .............................................5-28

5.7.10.1 Changing the Com Port Application..............5-30

5.7.11 Clearing NVRA M ...........................................................5-31

5.7.12 Enabling/Disabling IP Fragmentatio n ............................5-32

5.8 SNMP Community Names Screen.............................................5-33

5.8.1 Establishing Community Names ...................................5-35

5.9 SNMP Traps Screen..................................................................5-36

5.9.1 Configuring the Trap Table............................................5-37

5.10 Switch Configuration Screen......................................................5-38

5.10.1 Setting the STA .............................................................5-40

5.10.2 Setting the Age Time Field............................................5-41

5.10.3 Setting (Enabling or Disabling) the Port Status.............5-41

viii

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Contents

5.11 Ethernet Full Duplex Configuration Screen ............................... 5-42

5.11.1 Setting the Operation Mod e .......................................... 5-44

5.12 Device Specific Configuration Menu Screen ............................. 5-45

5.13 System Resources Scree n ........................................................ 5-47

5.13.1 Setting the Reset Peak Switch Utilizatio n ..................... 5-48

5.14 High Speed Interface Configuration Menu Scree n .................... 5-49

5.15 High Speed Interface Configuration Scree n .............................. 5-50

5.15.1 Configuring an FE-100FX or FE-100F 3 ........................ 5-53

5.15.1.1 Setting the FE-100FX or FE-100F3

Operational Mod e ......................................... 5-53

5.15.2 Configuring an FE-100T X ............................................. 5-54

5.15.2.1 Setting the FE-100TX Operational Mode ..... 5-54

5.15.2.2 Setting the FE-100TX Advertised Ability ...... 5-54

5.16 FLASH Download Screen.......................................................... 5-55

5.16.1 Image File Download Using Boot P ............................... 5-58

5.16.2 Image File Download Using TFT P ................................ 5-58

5.16.3 Image File Download Using Runtime ........................... 5-59

5.17 Port Redirect Function Screen .................................................. 5-60

5.17.1 Displaying the Source and Destination Entries............. 5-62

5.17.2 Changing Source and Destination Ports....................... 5-63

5.18 Broadcast Suppression Scree n ................................................. 5-64

5.18.1 Setting the Threshold.................................................... 5-65

5.18.2 Setting the Reset Pea k ................................................. 5-66

5.19 Device Statistics Menu Screen.................................................. 5-66

5.20 Switch Statistics Screen ............................................................ 5-68

5.20.1 Using the Clear Counters Comman d ............................ 5-69

5.21 Interface Statistics Screen......................................................... 5-70

5.21.1 Displaying Interface Statistic s ....................................... 5-73

5.21.2 Using the Clear Counters Command............................ 5-74

5.22 RMON Statistics Screen............................................................ 5-74

5.22.1 Displaying RMON Statistic s .......................................... 5-78

5.22.2 Using the Clear Counters Comman d ............................ 5-78

5.23 Network Tools............................................................................ 5-79

5.23.1 Built-in Commands ....................................................... 5-81

5.23.2 Special Commands....................................................... 5-89

APPENDIX A

SPECIFICATIONS

A.1 Device Specifications ..................................................................A-1

A.2 Physical Properties......................................................................A-1

A.3 Electrical Specifications...............................................................A-1

A.4 Environmental Requirements ......................................................A-2

A.5 Input/Output Ports .......................................................................A-2

A.6 COM Port/Pin Assignments.........................................................A-3

A.7 Regulatory Compliance ...............................................................A-3

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Contents

APPENDIX B

FE-100TX, FE-100FX, AND FE-100F3

SPECIFICATIONS

B.1 FE-100TX.................................................................................... B-1

B.1.1 Auto-Negotiatio n ............................................................. B-2

B.2 FE-100FX.................................................................................... B-3

B.3 FE-100F3.................................................................................... B-4

APPENDIX C

OPTIONAL INSTALLATIONS AND

MODE SWITCH BANK SETTINGS

C.1 Required Tools............................................................................C-2

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

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

CHAPTER 1

INTRODUCTION

Welcome to the 2E48-27R/2E49-27R SmartSwitch 2200 User’s Guide.

This guide describes the 2E48-27R and 2E49-27R SmartSwitch 2200

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 2E48-27R and

2E49-27R features, 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 noted differently, the information in this guide applies to

both of the Smar tSwitch 2200 devices, which are referred to as

NOTE

either “2E4X-27R” or “device.”

1.2

STRUCTURE OF THIS GUIDE

This guide is organized as follows:

Chapter 1, Introduction, outlines the contents of this manual and brieﬂy

describes the 2E4X-27R features. Directions about how to obtain

additional help and a list of related manuals are also included.

Chapter 2, Network Requirements, explains the network requirements

to consider before installing the 2E4X-27R.

Chapter 3, Installation, provides instructions on how to install the

2E4X-27R and connect segments to the device.

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 Local

Management and use the Local Management screens to manage the

2E4X-27R.

2E48-27R/2E49-27R User’s Guide

1-1

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 1: Introduction

Appendix A, Speciﬁcations , contains information on functionality and

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.

Appendix C, Optional Installations and Mode Switch Bank Settings,

describes how to install optional Fast Ethernet Interface Modules and how

to set the Mode Switch.

1.3

2E4X-27R OVERVIEW

The 2E4X-27R devices are 24-port (plus three optional) high-speed

network switching devices that support traditional switching (bridging)

and Cabletron Systems SecureFast Switching Virtual Network

technology. The 2E4X-27R can connect individual high-bandwidth user

devices, such as workstations, and provide a central switching point for

multiple Ethernet segments built using devices such as Cabletron Systems

HubSTACK or other third party stackable devices. The 2E4X-27R

devices also have redundant power supplies.

The 2E48-27R and 2E49-27R, shown in Figure 1-1, are identical products

except that ports 1 through 24 of the 2E48-27R support multimode ﬁber

optic cabling while ports 1 through 24 of the 2E49-27R support single

mode ﬁber optic cabling.

Ports 25 and 26 on the 2E4X-27R support optional Fast Ethernet Interface

Modules and can provide uplinks to 100BASE-TX or 100BASE-FX Fast

Ethernet networks. Port 27 supports an optional High Speed Interface

Module (HSIM) that provides additional connectivity to various

networking technologies such as Asynchronous Transfer Mode (ATM)

and Fiber Distributed Data Interface (FDDI), Gigabit Ethernet, and Wide

Area Network (WAN).

1-2

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

2E4X-27R Overview

RESET Button

Port Status LEDs

Optional HSIM Slot

TX RX

PWR

CPU

RESET

COM

TX RX

2E48-27R

Network Ports 1 - 24

(ST connectors),

System LEDs

COM Port

Optional Fast Ethernet Interface

Module Ports 25 and 26

Supports

Multimode

Fiber Optics

2E48-27R

RESET Button

Port Status LEDs

Optional HSIM Slot

TX RX

PWR

CPU

RESET

COM

TX RX

2E49-27R

Network Ports 1 - 24

(ST connectors),

System LEDs

COM Port

Optional Fast Ethernet Interface

Module Ports 25 and 26

Supports

Single Mode

Fiber Optics

2E49-27R

23141_01

Figure 1-1 The 2E48-27R and 2E49-27R

The 2E4X-27R is a tabletop unit that can be installed in a standard

19-inch rack using the supplied rack mounting hardware.

The 2E4X-27R has two power supplies. 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.

2E48-27R/2E49-27R User’s Guide

1-3

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 1: Introduction

1.3.1

Connectivity

The 2E48-27R connects to Ethernet networks or workstations through 24

ST ﬁber optic ports on the front panel. These ports support multimode

ﬁber optic cables at lengths up to 2 kilometers. The ports are IEEE 802.3

10BASE-F compliant.

The 2E49-27R connects to Ethernet networks or workstations through 24

ST ﬁber optic ports on the front panel. These ports support single mode

ﬁber optic cables at lengths up to 5 kilometers. The ports are FOIRL

compliant.

All of the devices have two front panel slots (ports 25 and 26) for optional

Fast Ethernet Interface Modules to support an uplink to 100 Mbps Fast

Ethernet backbones or a high speed connection to a local server. There is

also space for an optional HSIM to provide additional connectivity to

various networking technologies.

1.3.2

Full Duplex Switched Ethernet

Each switched Ethernet port supports full wire-speed Ethernet

communications and can be conﬁgured to operate in Full Duplex

Switched Ethernet (FDSE) mode. FDSE allows each port to provide a

dedicated 20 Mbps bandwidth for ﬁle server or high-end workstation

connections. The optional Fast Ethernet ports provide up to 200 Mbps of

bandwidth.

1.3.3

SmartTrunk

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.

1-4

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

2E4X-27R Overview

For more information about SmartTrunk, refer to the Cabletron Systems

SmartTrunk User’s Guide.

1.3.4

Runtime IP Address Discovery

This feature enables the 2E4X-27R to automatically accept an IP address

from a Boot Strap Protocol (BootP) server on the network into NVRAM

without requiring a user to enter an IP address through Local

Management.

When the 2E4X-27R is connected to the network and powered up,

Runtime IP Address Discovery (RAD) checks the 2E4X-27R for an IP

address. If one has not yet been assigned (2E4X-27R IP address set to

0.0.0.0), RAD checks to see if any of the 2E4X-27R interfaces have a

link. If so, RAD sends out Reverse Address Resolution Protocol (RARP)

and BootP requests to obtain an IP address from a BootP or RARP server

on the network.

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 BootP or RARP

server, or an IP address is entered using Local Management.

1.3.5

Management

Management of the 2E4X-27R is accomplished using SNMP compliant

management tools for in-band 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. Local

Management can also be accessed through a Telnet connection to the

RJ45 COM port.

Local Management provides the ability to manage the 2E4X-27R and any

of the optional Fast Ethernet Interface Modules installed in ports 25 and

26 and the optional High Speed Interface Module (HSIM).

The user’s guide for the HSIM provides detailed information about Local

Management for the HSIM.

Information about how to access and use Local Management is contained

in Chapter 5.

2E48-27R/2E49-27R User’s Guide

1-5

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 1: Introduction

1.3.6

Switching Options

The 2E4X-27R provides IEEE 802.1D switching, IEEE 802.1Q

switching, or SecureFast Switching Virtual Network Services between all

of the front panel interfaces including Fast Ethernet Interface Modules

and High Speed Interface Modules (HSIMs).

802.1Q switching and SecureFast switching allow for future migration to

Virtual Network technologies without requiring the replacement of

existing equipment.

1.3.7

Standards Compatibility

The 2E4X-27R is fully compliant with the IEEE 802.3 standard. The

optional Fast Ethernet Interface Modules are fully compliant with the

IEEE 802.3u standard.The 2E4X-27R provides IEEE 802.1D Spanning

Tree Algorithm (STA) support to enhance the overall reliability of the

network and protect against “loop” conditions. The 2E4X-27R supports a

wide variety of industry standard MIBs including RFC 1213 (MIB II),

RFC 1757 (RMON), 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.

1.3.8

Year 2000 Compliant

The 2E4X-27R has an internal clock that can maintain the current time

and date beyond the year 1999.

1.3.9

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. Chapter 4 provides details about the 2E4X-27R

LANVIEW LEDs.

1-6

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

2E4X-27R Overview

1.3.10 Optional Features

Options for the 2E4X-27R are Fast Ethernet Interface Modules and High

Speed Interface Modules, which add remote uplink capability.

Cabletron Systems provides Fast Ethernet Interface Modules to support

uplinks to 100 Mbps Ethernet backbones or high speed connections to

local servers. Table 1-1 provides a list of the Fast Ethernet Interface

Modules.

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

High Speed Interface Modules (HSIMs) are available from Cabletron

Systems for additional connectivity to various networking technologies.

The HSIMs available for the 2E4X-27R are listed in the Release Notes.

2E48-27R/2E49-27R User’s Guide

1-7

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 1: Introduction

1.4

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.

1-8

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Getting Help

1.5

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

[email protected]

FTP

ftp://ftp.cabletron.com/

anonymous

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

2E48-27R/2E49-27R User’s Guide

1-9

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 1: Introduction

1.6

RELATED MANUALS

The following manuals may help to set up, control, and manage the

2E4X-27R:

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/

1-10

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

CHAPTER 2

NETWORK REQUIREMENTS

Before installing the 2E4X-27R or Fast Ethernet Interface Module

(FE-100TX, FE-100FX, or FE-100F3), review the requirements and

speciﬁcations referred to in this chapter concerning the following:

•

SmartTrunk (Section 2.1)

10BASE-F Fiber Optic Network (Section 2.2)

FOIRL Fiber Optic Network (Section 2.3)

100BASE-TX Twisted Pair Network (Section 2.4)

100BASE-FX Fiber Optic Network (Section 2.5)

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, can be found on the

NOTE

Cabletron Systems World Wide Web

site: http://www.cabletron.com/

2.1

SmartTrunk

To connect the 2E4X-27R to a network so 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-F NETWORK

When connecting a 10BASE-F segment to any of the 2E48-27R ports

(Interfaces 1 through 24), ensure that the network meets the Ethernet

network requirements of the IEEE 802.3 standard for 10BASE-F. Refer to

the Cabletron Systems Cabling Guide for details.

2E48-27R/2E49-27R User’s Guide

2-1

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 2: Network Requirements

2.3

FOIRL FIBER OPTIC NETWORK

When connecting an FOIRL segment to any of the 2E49-27R ports

(Interfaces 1 through 24), ensure that the network meets the Ethernet

network requirements for FOIRL. Refer to the Cabletron Systems

Cabling Guide for details.

2.4

100BASE-TX NETWORK

The 2E4X-27R, with an FE-100TX installed in ports 25 and 26, provides

an RJ45 connection that supports UTP cabling, which has an impedance

of 85 to 111 ohms. 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 2E4X-27R 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.

2.5

100BASE-FX FIBER OPTIC NETWORK

Ports 25 and 26 of the 2E4X-27R 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 Mode 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

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

CHAPTER 3

INSTALLATION

Only qualiﬁed personnel should install the 2E4X-27R.

This chapter provides all instructions required to install the 2E4X-27R. A

Phillips screwdriver is required to install options into the device or install

the device into a rack. Follow the order of the sections listed below to

correctly install the 2E4X-27R.

•

Unpacking the 2E4X-27R (Section 3.1)

Installing Options (Section 3.2)

Installing the 2E4X-27R (on a shelf or tabletop, or into a standard

rack) (Section 3.3)

•

Connecting to the Network (Section 3.4)

Completing the Installation (Section 3.5)

3.1

UNPACKING THE 2E4X-27R

Unpack the 2E4X-27R as follows:

1. Open the box and remove the packing material protecting the

2E4X-27R.

2E48-27R/2E49-27R User’s Guide

3-1

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 3: Installation

2. Verify the contents of the carton as listed in Table 3-1.

Table 3-1 Contents of 2E4X-27R Carton

Item

Quantity

2E4X-27R

Antistatic wrist strap

Console Cable Kit

Rackmount Kit

Strain-Relief Bracket

Manual Accessory Kit

Power Cord (2E48-27R or 2E49-27R)

3. Remove the black and amber tape seal on the non-conductive bag to

remove the 2E4X-27R.

4. Perform a visual inspection of the device for any signs of physical

damage, and contact the Cabletron Systems Global Call Center if there

are any signs of damage. Refer to Section 1.5 for details.

3.2

INSTALLING OPTIONS

Install any optional equipment before proceeding to

Section 3.3.

NOTE

If the 2E4X-27R is to be installed with an optional Fast Ethernet Interface

Module, refer to Appendix C for installation instructions. The installation

instructions for the HSIMs are in the associated HSIM user’s guide.

3-2

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Installing the Device

3.3

INSTALLING THE DEVICE

The 2E4X-27R may be installed on a tabletop, shelf, or in a 19-inch rack.

Section 3.3.1 describes a tabletop or shelf installation and Section 3.3.2

describes the rackmount installation.

To prevent possible personal injury and/or damage to the unit,

do NOT connect power to the 2E4X-27R until instructed to do

so.

3.3.1

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 2E4X-27R within seven feet of an appropriately grounded

power receptacle that meets the power supply requirements listed in

Appendix A.

•

In a shelf installation, the shelf must support 13.6 kg (30 lb) of static

weight for each 2E4X-27R.

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.

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 2E4X-27R within seven feet

of its power source and on an unrestricted free surface area as shown in

Figure 3-1. Proceed to Section 3.3.3 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 2E4X-27R.

CAUTION

2E48-27R/2E49-27R User’s Guide

3-3

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 3: Installation

TX RX

PWR

CPU

RESET

COM

2E48-27R

A = 15 cm (6 in)

B = 45 cm (22.5 in)

C = 53 cm (21 in)

D = 213 cm (84 in)

23142-06

Figure 3-1 Tabletop or Shelf Installation

3.3.2

Rackmount Installation

To install the 2E4X-27R in a 19-inch rack, Cabletron Systems includes an

accessory 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:

•

An appropriate grounded power receptacle must be 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 2E4X-27R.

CAUTION

Before installing the 2E4X-27R 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

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Installing the Device

Installation

Rack mounting the 2E4X-27R involves the following:

•

Attaching the strain-relief bracket

Rack mounting the 2E4X-27R (attaching the mounting brackets and

fastening the 2E4X-27R to the rack)

Attaching the Strain-Relief Bracket

Attach the strain-relief bracket to the front of the 2E4X-27R 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

2E4X-27R. Use of longer screws may damage the unit.

CAUTION

2. Place the 2E4X-27R upside down (as shown in Figure 3-2) on a clean

flat surface. Then attach the strain-relief bracket to the bottom of the

2E4X-27R using the four 8-32 x 3/8-inch pan-head screws.

Screws (4)

Strain-Relief Bracket

2 E 4 8 - 2 7 R

2 6

2 5

T X

R X T X

R X

1 5

1 4

1 3

1 2

1 1

1 0

1 6

T X

R X

C O M

C P U

R E S E T

2 4

2 3

2 2

2 1

2 0

1 9

1 8

1 7

P W R

R X T X

R X

T X

23141-47

Figure 3-2 Attaching the Strain-Relief Bracket

2E48-27R/2E49-27R User’s Guide

3-5

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 3: Installation

Rack Mounting the 2E4X-27R

Proceed as follows to install the 2E4X-27R into a 19-inch rack:

1. Remove and discard the four cover screws (two from each side)

located along the front edges of each side of the 2E4X-27R.

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 2E4X-27R as shown in Figure 3-3.

Rackmount Brackets (2)

TX RX

PWR

CPU

RESET

COM

2E48-27R

Screws (4)

Figure 3-3 Installing the Rackmount Brackets

23141-04

3. With the mounting brackets installed, position the 2E4X-27R between

the vertical frame members of the 19-inch rack and fasten it securely

with mounting screws as shown in Figure 3-4.

19-Inch Rack

TX RX

PWR

CPU

RESET

COM

2E48-27R

Screws (4)

23141-03

Figure 3-4 Installing the 2E4X-27R in a Rack

3-6

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Installing the Device

3.3.3

Connecting Power to the 2E4X-27R

The 2E4X-27R has two power supplies with automatic voltage

sensing that allows connection to power sources ranging from

100–125 Vac or 200–250 Vac, 50/60 Hz.

NOTE

To connect the 2E4X-27R 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.

2E48-27R

Primary

Redundant

2314-62

Figure 3-5 2E4X-27R Rear View

It takes approximately one minute for the 2E4X-27R to boot up.

NOTE

2. Observe the LANVIEW LEDs. After a successful boot, the CPU LED

turns ON (green). If the CPU LED is not green after one minute and

turning 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 1.5 for details.

2E48-27R/2E49-27R User’s Guide

3-7

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 3: Installation

3.4

CONNECTING TO THE NETWORK

This section provides the procedures for connecting unshielded twisted

pair (UTP) and ﬁber optic segments from the network or other devices to

the 2E4X-27R.

If the 2E4X-27R is being installed in a network using

SmartTrunking, there are rules concerning the network cable

NOTE

and port conﬁgurations that must be followed for

SmartTrunking to operate properly. Before connecting the

cables, refer to the SmartTrunk User’s Guide for the

conﬁguration information.

Ports 1 through 24 on the 2E48-27R has ST connectors for multimode

ﬁber optic cable connections. Ports 1 through 24 on the 2E49-27R has ST

connectors for single mode ﬁber optic cable connections. On all of these

devices, ports 25 and 26 support FE-100TX, FE-100FX, or FE-100F3

Fast Ethernet Interface Modules.

The FE-100TX has an RJ45 connector for a twisted pair cable connection.

The FE-100FX and FE-100F3 have SC connectors for multimode and

single mode ﬁber optic cable connections, respectively.

To connect ST ﬁber optic cables to ports 1 through 24, refer to

Section 3.4.1.

To connect a twisted pair cable to an optional FE-100TX in port slot 25 or

26, refer to Section 3.4.2.

To connect an SC ﬁber optic cable to an optional FE-100FX or FE-100F3

in port slot 25 or 26, refer to Section 3.4.3.

3-8

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Connecting to the Network

3.4.1

Connecting Fiber Optic Cables to Ports 1

Through 24

Each ﬁber optic link consists of two strands of ﬁber optic cabling: the

transmit (TX) and the receive (RX). The transmit strand from a

2E4X-27R port connects to the receive port of a ﬁber optic Ethernet

device at the other end of the segment. The receive strand of the

applicable port on the 2E4X-27R connects to the transmit port of the ﬁber

optic Ethernet device.

Cabletron Systems recommends labeling ﬁber optic cables to indicate

receive and transmit ends. Many cables are prelabeled, providing

matching labels or tapes at both ends of each strand of cable.

The following instructions detail the process used to connect an ST

connector to a 2E4X-27R port.

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 on

each fiber strand.

Leave the protective rubber covers in place when the

connectors are not in use to prevent contamination.

NOTE

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 cable ends causes problems in data

transmissions. If the ends of the ﬁber optic strands become

contaminated, use a canned duster to blow the surfaces clean.

A ﬁber port cleaning swab saturated with optical-grade

isopropyl alcohol may also be used to clean the ends.

CAUTION

2. Refer to Figure 3-6 and attach one fiber to the applicable receive (RX)

port on the 2E4X-27R. Insert the ST connector into the port with the

alignment slot on the connector inserted over the locking key on the

port. Turn the connector clockwise to lock it in place.

3. Attach the other fiber of the pair to the applicable transmit (TX) port

on the 2E4X-27R using the same procedure to insert the ST connector.

2E48-27R/2E49-27R User’s Guide

3-9

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 3: Installation

4. At the other end of the fiber optic cable, attach the fiber pair to the

transmit and receive ports of the device.

Receive (RX) LED

23141-07

Figure 3-6 Fiber Optic Connection

5. 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,

perform the following steps until it is on:

a. Verify that the device at the other end of the segment is ON and

connected to the segment.

b. Check the crossover of the cables. Swap the cable connections if

necessary.

c. Check the cable for continuity.

d. Check that the fiber optic connection meets the dB loss and cable

specifications outlined in Section 2.2 or Section 2.3 for

multimode or single mode cabling, respectively.

If a link is not established, contact Cabletron Systems Global Call Center.

Refer to Section 1.5 for details.

6. Repeat steps 1 through 5, above, until all connections have been made.

3.4.2

Connecting a UTP Segment to the FE-100TX

To ensure proper operation, use only Category 5 Unshielded

Twisted Pair (UTP) cabling that has an impedance between 85

and 111 ohms.

NOTE

3-10

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Connecting to the Network

An FE-100TX installed in port slot 25 and/or 26 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 not crossed over position,

marked with =.

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

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. Figure 3-7 shows how to properly set the FE-100TX

crossover switch.

10BASE-T Device Port

RJ45 Port

RX+

RX–

NOTE:

RX+/RX– and TX+/TX–

must share a common

color pair.

TX+

TX–

TX+

TX–

RJ45 to RJ45

2251-31

Figure 3-8 Schematic of 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.

2E48-27R/2E49-27R 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 3-7.

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 it 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 db loss and

cable specifications outlined in Section 2.4.

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 1.5 for details.

3.4.3

Connecting a Fiber Optic Segment to the

FE-100FX and FE-100F3

The FE-100FX and FE-100F3 have an SC style network port (see

Figure 3-9). Cabletron Systems supplies ﬁber optic cable that uses SC

style connectors, which 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.

3-12

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Connecting to the Network

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 of the ﬁber optic strands become

contaminated, use a canned duster to blow the surfaces clean.

A ﬁber port cleaning swab saturated with optical-grade

isopropyl alcohol may also be used to clean the ends.

CAUTION

2. Insert one end of the SC connector into the FE-100FX or FE-100F3

installed in the 2E4X-27R. See Figure 3-9.

3. At the other end of the fiber optic cable, attach the SC connector to the

other device.

SC Connector

TX LED

RX LED

23141-34

Figure 3-9 FE-100FX or FE-100F3 Port Connection

2E48-27R/2E49-27R User’s Guide

3-13

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 3: Installation

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 it is on:

The port RX LED ﬂashes green and amber during bootup.

NOTE

a. Check that the power is turned on for the device at the other end of

the link.

b. Verify proper crossover of fiber strands between the applicable

port on the 2E4X-27R 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 2.5.

If a link has not been established, contact the Cabletron Systems Global

Call Center. Refer to Section 1.5 for details.

3.5

COMPLETING THE INSTALLATION

After installing the 2E4X-27R and any optional Fast Ethernet Interface

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 2E4X-27R is now ready to be set up through Local Management.

Refer to Chapter 5 for information on how to access and use Local

Management to configure the 2E4X-27R.

3-14

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

CHAPTER 4

TROUBLESHOOTING

This chapter provides information concerning the following:

•

Using LANVIEW (Section 4.1)

FE-100TX LED (Section 4.2)

Troubleshooting Checklist (Section 4.3)

Using the RESET Button (Section 4.4)

4.1

USING LANVIEW

The 2E4X-27R uses the Cabletron Systems built-in visual diagnostic and

status monitoring system called LANVIEW. The LANVIEW LEDs

(Figure 4-1) 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), refer to Section 4.2.

All LEDs for the High Speed Interface Module (HSIM) are located on the

HSIM and are described in the associated HSIM user’s guide.

CPU

PWR

HSIM-ASDP

PWR

CPU

RESET

COM

2E48-27R

23141-36

Figure 4-1 LANVIEW LEDs

2E48-27R/2E49-27R User’s Guide

4-1

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 4: Troubleshooting

The terms flashing, blinking, and solid used in the following

tables indicate the following:

NOTE

Flashing indicates an LED is 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.

Table 4-1 LANVIEW LEDs

LED

Color

State

Recommended Action

PWR

OFF

Device electronics not 1. Ensure that the power cords

receiving power from

power supply(ies).

are plugged in correctly and

that there is power at the

power source.

2. Contact the Cabletron

Systems Global Call Center

(GCC).

Green

Amber

Functional. Power

supply(ies) operating

normally.

No action.

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. Contact the Cabletron

Systems GCC.

CPU

Off

Power off.

Power up device.

Red

Blinking. Hardware

failure has occurred.

Contact the Cabletron

Systems GCC.

Solid. Resetting,

If the LED remains Red for

normal power up reset. several minutes, Contact the

Cabletron Systems GCC.

Amber

Blinking. Crippled.

Contact the Cabletron

Systems GCC.

Solid. Testing.

If the LED remains Amber for

several minutes, contact the

Cabletron Systems GCC.

Green

Solid. Functional.

No action.

Amber

and

Green

Booting. Blinks amber

and green while

booting.

4-2

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Using LANVIEW

Table 4-1 LANVIEW LEDs (Continued)

LED

Color

State

Recommended Action

(Receive)

Off

No link. No activity.

Port enabled or

disabled.

No error.

Green

Solid. Port enabled,

link, no activity.

No error.

Blinking. Port

disabled, link.

Amber

Red

Flashing. Port

enabled, link, activity.

Diagnostic failure.

Contact the Cabletron

Systems GCC for assistance.

(Transmit)

Off

Port enabled, and no

activity.

1. Ensure that the STA is

enabled and that there is a

valid link.

2. Contact the Cabletron

Systems GCC for

assistance.

Should ﬂash green

every two seconds

indicating BPDUs

being sent if STA is

enabled and there is a

valid link.

Green

Amber

Flashing. Indicates

activity. Rate indicates

data rate.

No action.

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 GCC for

assistance.

Red

Flashing. Indicates

No action.

collision rate.

Solid. Diagnostic

Contact the Cabletron

failure.

Systems GCC for assistance.

2E48-27R/2E49-27R User’s Guide

4-3

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 4: Troubleshooting

4.2

FE-100TX LED

The optional FE-100TX has one LED labeled 10/100. The 10/100 LED

together with the receive 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 4-2.

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.

LED

100

Receive (RX)

LED

100

FE-100TX

19602-41

Figure 4-2 RX and 10/100 LEDs

A link exists if the associated port (25 or 26) RX (Receive) 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

4-4

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

FE-100TX LED

No link exists if the associated port (25 or 26) RX (Receive)

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.

2E48-27R/2E49-27R User’s Guide

4-5

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 4: Troubleshooting

4.3

TROUBLESHOOTING CHECKLIST

If the 2E4X-27R 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.

Check the installation.

No Local

Management

Password screen.

Autobaud is enabled, but Press ENTER (RETURN)

the baud rate has not yet (may take up to four times).

been sensed.

Terminal setup is not

correct.

Refer to Chapter 5 for proper

setup procedures.

Improper console cable

pinouts.

Refer to Appendix A for

proper console port pinouts.

Cannot contact the

device from in-band Names Table.

management.

Improper Community

Refer to Chapter 5

for Community Names Table

setup.

IP address not assigned. Refer to Chapter 5 for IP

address assignment

procedure.

Port is disabled.

No link to device.

Enable port.

Check link to device.

Port(s) goes into

standby for no

apparent reason.

Loop condition detected. 1. Review network design

and delete unnecessary

loops.

2. Call the Cabletron Systems

GCC 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

GCC if the problem

continues.

were lost when the

2E4X-27R 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.

4-6

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Using the RESET Button

4.4

USING THE RESET BUTTON

The RESET button shown in Figure 4-3 resets the 2E4X-27R processor

without affecting the NVRAM.

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

RESET Button

PWR

CPU

RESET

COM

2E48-27R

23141-37

Figure 4-3 RESET Button

To reset the 2E4X-27R processor, press and release the RESET button.

The 2E4X-27R goes through a reset process for approximately 45

seconds. Additional downtime may result as the device reenters the

network.

2E48-27R/2E49-27R User’s Guide

4-7

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 4: Troubleshooting

4-8

2E48-27R/2E49-27R 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 for the 2E4X-27R consists of a series of screens that

allow the management of the 2E4X-27R. 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 switch, interface, and RMON statistics.

Conﬁgure ports.

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.

Remotely using a VT type terminal connected through a modem.

In-band through a Telnet connection.

2E48-27R/2E49-27R 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

2E48-27R/2E49-27R 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

2E48-27R/2E49-27R 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 2E4X-27R to attach the

management terminal to the 2E4X-27R COM port as shown in

Figure 5-1.

Connect an IBM PC or compatible device, running the VT terminal

emulation, to the 2E4X-27R as follows:

1. Connect the RJ45 connector at one end of the cable (supplied in the

kit) to the COM port on the 2E4X-27R.

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.

TX RX

PWR

CPU

RESET

COM

2E48-27R

RJ45 COM Port

UTP Cable

with RJ45 Connectors

RJ45-to-DB9

PC Adapter

23141-50

Figure 5-1 Management Terminal Connection

5-4

2E48-27R/2E49-27R 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

Margin Bell ->

Warning Bell ->

Margin Bell

Warning Bell

2E48-27R/2E49-27R User’s Guide

5-5

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

5.3.3

Telnet Connections

Once the 2E4X-27R has a valid IP address, the user can establish a Telnet

session with Local Management from any TCP/IP based node on the

network. Telnet connections to the 2E4X-27R require the community

name passwords assigned at the SNMP Community Names screen of the

2E4X-27R.

For information about setting the IP address, refer to Section 5.7.

For information about assigning community names, refer to Section 5.8.

Refer to the instructions included with the Telnet application for

information about establishing a Telnet session.

5-6

2E48-27R/2E49-27R 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 2E4X-27R is connected to an American Power Conversion (APC)

Uninterruptible Power Supply (UPS) device for protection against the

loss of power, a connection from the 2E4X-27R 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 2E4X-27R is used to attach the

UPS to the 2E4X-27R COM port as shown in Figure 5-2.

To connect the UPS device to the COM port of the 2E4X-27R, proceed as

follows:

1. Connect the RJ45 connector at one end of the cable to the COM port

on the 2E4X-27R.

2. Plug the RJ45 connector at the other end of the cable into the

RJ45-to-DB9 male (UPS) adapter (Cabletron Systems part number,

9372066).

3. Connect the RJ45-to-DB9 male (UPS) adapter to the female DB9 port

on the rear of the UPS device (refer to the particular UPS device’s user

instructions for more speciﬁc information about the monitoring

connection).

RJ45 COM Port

TX RX

PWR

CPU

RESET

COM

2E48-27R

DB9 Port

UTP Cable

with RJ45 Connectors

UPS Device

RJ45-to-DB9

UPS Adapter

23141-51

Figure 5-2 Uninterruptible Power Supply (UPS) Connection

2E48-27R/2E49-27R 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 2E4X-27R 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 of the 2E4X-27R auto-senses the baud rate of

the terminal) until the 2E4X-27R Local Management Password screen

displays.

Event Message Line

2E48-27R LOCAL MANAGEMENT

CABLETRON Systems, Incorporated

P.O.Box 5005

Rochester, NH 03866-5005 USA

(603) 332-9400

Device Serial Number:

XXXXXXXXX

Device Hardware Revision:

Device Firmware Revision:

Device BOOTPROM Revision:

X.XX.XX

Enter Password:

23141-12

Figure 5-3 The 2E4X-27R Local Management Password Screen

2. Enter the Password and press ENTER. The default super-user access

password is “public” or press ENTER.

5-8

2E48-27R/2E49-27R 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 display.

If no activity occurs for several minutes, the Local Management

Password screen redisplays and the password has to be

reentered.

5.4.1

Navigating Local Management Screens

The 2E4X-27R Local Management application consists of a series of

menu screens. Navigate through Local Management by selecting items

from the menu screens.

The 2E4X-27R support three modes of switch operation. The switching

modes are as follows:

•

802.1D SWITCHING (IEEE 802.1D switching)

802.1Q SWITCHING (IEEE 802.1Q port based VLANs)

SECURE FAST VLAN (Cabletron Systems SecureFast switching)

Refer to the Release Notes shipped with the product to verify

which screens are suppor ted in each of the three a vailable

switching modes.

NOTE

The switch operational mode is set in the General Conﬁguration screen

(Section 5.7). 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.

2E48-27R/2E49-27R User’s Guide

5-9

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

Device

Configuration

General Configuration

SNMP Community Names

SNMP Traps

Switch Configuration

Ethernet Full Duplex

Configuration

SmartTrunk

Configuration

Password

System

Device

Device Specific

Fast

Resources

Configuration Menu

Ethernet

Interfaces

High Speed

Interface

Configuration

HSIM

Switch Statistics

Interface Statistics

RMON Statistics

Device

Statistics

Flash Download

Port Redirect

Function

Broadcast

Suppression

Network Tools

23142-43

Figure 5-4 802.1D Switching Mode, LM Screen Hierarchy

Device

General Configuration

Configuration

SNMP Community Names

SNMP Traps

Switch Configuration

Ethernet Full Duplex

Configuration

SmartTrunk

Configuration

Password

System

Device

Device Specific

Fast

Resources

Configuration Menu

Ethernet

Interfaces

High Speed

Interface

Configuration

HSIM

Switch Statistics

Interface Statistics

RMON Statistics

Device

Statistics

Flash Download

Broadcast

Suppression

Network Tools

802.1Q VLAN

Configuration

19601-82

Figure 5-5 802.1Q Switching Mode, LM Screen Hierarchy

5-10

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Accessing Local Management

Device

Configuration

General Configuration

SNMP Community Names

SNMP Traps

Ethernet Full Duplex

Configuration

Password

System

Device

Device Specific

Fast

Resources

Configuration Menu

Ethernet

Interfaces

High Speed

Interface

Configuration

HSIM

Device

Statistics

Flash Download

Interface Statistics

RMON Statistics

Port Redirect

Function

Network Tools

19602-83

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.

2E48-27R/2E49-27R 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

2E48-27R/2E49-27R 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.

2E48-27R LOCAL MANAGEMENT

Device Menu

Device Type: 2E48-27R

Firmware Revision:

XX.XX.XX

BOOTPROM Revision: XX.XX.XX

DEVICE CONFIGURATION

DEVICE STATISTICS

NETWORK TOOLS

RETURN

EXIT

23142-13

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

The following explains each Device Menu screen ﬁeld as shown in

Figure 5-7:

DEVICE CONFIGURATION

The Device Conﬁguration screen provides access to the Local

Management screens that are used to conﬁgure the 2E4X-27R 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 2E4X-27R resources and set operating

parameters speciﬁc to each port.

2E48-27R/2E49-27R User’s Guide

5-13

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

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 5.12.

DEVICE STATISTICS

Device Statistics accesses the Device Menu screen, which provides access

to screens that allow the user to obtain switch, interface, and RMON

statistics information about the 2E4X-27R. For details, refer to

Section 5.19.

NETWORK TOOLS

The Network Tools function resides on the 2E4X-27R and consists of a

series of commands that allow the user to access and manage network

devices. Section 5.23 explains how to use the Network Tools utility.

5.6

DEVICE CONFIGURATION MENU SCREEN

The Device Conﬁguration Menu screen, Figure 5-8, provides access to a

series of Local Management screens that allow the user to conﬁgure and

monitor operating parameters, modify SNMP community names, set

SNMP traps, conﬁgure switch parameters and conﬁgure the 2E4X-27R

ports.

The following menu items on the Device Conﬁguration Menu

screen may not display if the operational mode of the device is

NOTE

set to SECURE FAST VLAN:

SWITCH CONFIGURATION

SMARTTRUNK CONFIGURATION

Refer to the Release Notes to see if the above screens are

supported in SECURE FAST VLAN mode. Section 5.7.9

describes how to set the operational mode.

5-14

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Device Conﬁguration Menu Screen

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.

2E48-27R LOCAL MANAGEMENT

Device Configuration Menu

Device Type: 2E48-27R

Firmware Revision:

XX.XX.XX

BOOTPROM Revision: XX.XX.XX

GENERAL CONFIGURATION

SNMP COMMUNITY NAMES

SNMP TRAPS

SWITCH CONFIGURATION

ETHERNET FULL DUPLEX CONFIGURATION

SMARTTRUNK CONFIGURATION

DEVICE SPECIFIC CONFIGURATION

EXIT

RETURN

23142_66

Figure 5-8 Device Conﬁguration Menu Screen

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

conﬁgure operating parameters for the 2E4X-27R. For details, refer

to Section 5.7.

SNMP COMMUNITY NAMES

The SNMP Community Names screen allows the user to enter new,

change, or review the community names used as access passwords for

device management operation. Access is limited based on the password

level of the user. For details, refer to Section 5.8.

2E48-27R/2E49-27R User’s Guide

5-15

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

SNMP TRAPS

The SNMP Traps screen provides display and conﬁguration access to the

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.

ETHERNET FULL DUPLEX CONFIGURATION

The Ethernet Full Duplex Conﬁguration screen allows each 10 Mbps port

(1 to 24) to be set for either Standard Ethernet or Full Duplex operation.

The screen also indicates whether or not each port is linked to another

Ethernet device and if that port is enabled. For details, refer to the

Section 5.11.

SMARTTRUNK CONFIGURATION

The SmartTrunk Conﬁguration screen allows the user to logically group

interfaces to aggregate high speed uplinks. For details, refer to the

Cabletron Systems 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

2E4X-27R. For details, refer to Section 5.12.

5-16

2E48-27R/2E49-27R 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, the COM port conﬁguration, and monitor the total time

(uptime) that the device has been running.

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

2E48-27R LOCAL MANAGEMENT

General Configuration

Device Type: 2E48-27R

Firmware Revision:

XX.XX.XX

BOOTPROM Revision: XX.XX.XX

MAC Address:

00-00-ID-00-00-00

0.0.0.0

Device Date:

10/11/97

14:23:00

30 sec.

15 min.

IP Address:

Device Time:

Subnet Mask:

255.255.0.0

NONE DEFINED

0.0.0.0

Screen Refresh Time:

Screen Lockout Time:

Default Gateway:

TFTP Gateway IP Addr:

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

23142_15

Figure 5-9 General Conﬁguration Screen

The following brieﬂy explains each General Conﬁguration screen ﬁeld:

MAC Address (Read-Only)

Displays the base physical address of the 2E4X-27R.

2E48-27R/2E49-27R 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 2E4X-27R. 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 1.3.4.

Subnet Mask (Modiﬁable)

Displays the subnet mask for the 2E4X-27R. 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

network or subnetwork address, or to 0 if the corresponding bit identiﬁes

the host. When an IP address is entered in the IP Address ﬁeld, the Subnet

Mask ﬁeld automatically changes to the default subnet mask for that IP

address. 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 2E4X-27R. 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

2E4X-27R. 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

2E48-27R/2E49-27R 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 a 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 speciﬁed device’s 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 2E4X-27R so it operates as an IEEE 802.1D

switch (802.1D SWITCHING option), an IEEE 802.1Q switch (802.1Q

SWITCHING option), or as a Cabletron Systems SecureFast switch

(SECURE FAST VLAN option).

In 802.1D SWITCHING mode, the 24 ports located on the front panel,

and each Fast Ethernet Interface Module, and HSIM port(s) are bridged to

each other.

In 802.1Q SWITCHING mode, the 2E4X-27R is able to increase its

switching functionality by creating and maintaining IEEE port based

VLANs.

When the operational mode is set to SECURE FAST VLAN, the

2E4X-27R acts as a SecureFast switch. With the Cabletron Systems

VLAN Manager software, the 2E4X-27R is able to increase its switching

functionality by creating and maintaining Virtual LANs (VLANs).

For details on how to select the Operational Mode, refer to Section 5.7.9.

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.

2E48-27R/2E49-27R User’s Guide

5-19

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

Application (Toggle)

Allows the user to set the application that the COM port will support. The

ﬁeld toggles between LM (Local Management) and UPS (Uninterruptible

Power Supply). The default is LM.

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.

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 2E4X-27R 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 is ﬁeld is ENABLED. If the 2E4X-27R 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.

5.7.1

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

3. Press ENTER. If the IP address is a valid format, the cursor returns to

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.

5-20

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

General Conﬁguration Screen

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 MODULE.

ARE YOU SURE YOU WANT TO CONTINUE?

YES

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.

5.7.2

Setting the Subnet Mask

If the management workstation that is to receive SNMP traps from the

2E4X-27R is located on a separate subnet, the subnet mask for the

2E4X-27R 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

2E48-27R/2E49-27R User’s Guide

5-21

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

3. Press ENTER. If the subnet mask is valid, the cursor returns to the

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 MODULE.

ARE YOU SURE YOU WANT TO CONTINUE?

YES

19601-84

Figure 5-11 Conﬁguration Warning Screen

5. Use the arrow keys to highlight the YES command, then press

ENTER. The changes are saved and the device reboots.

5-22

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

General Conﬁguration Screen

5.7.3

Setting the Default Gateway

If the SNMP management station is located on a different IP subnet than

the 2E4X-27R, a default gateway must be speciﬁed. When an SNMP Trap

is generated, the 2E4X-27R 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

2E4X-27R, 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

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, then press

ENTER. The warning screen shown in Figure 5-12 displays.

2E48-27R/2E49-27R User’s Guide

5-23

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

WARNING!

YOU HAVE ELECTED TO SAVE ONE OR MORE CONFIGURATION

ITEMS THAT REQUIRE RESETTING THIS MODULE.

ARE YOU SURE YOU WANT TO CONTINUE?

YES

19601-84

Figure 5-12 Conﬁguration Warning Screen

5. Use the arrow keys to highlight the YES command, then press

ENTER. The changes are saved and the device reboots.

5.7.5

Setting the Device Date

The 2E4X-27R is year 2000 compliant so that the Device Date ﬁeld can

be set beyond the year 1999.

To set the system 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.

5-24

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

General Conﬁguration Screen

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.

5.7.6

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.

2E48-27R/2E49-27R User’s Guide

5-25

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

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.

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

If the device is to be conﬁgured to operate as a SecureFast

switch, the device must be assigned a unique IP address that

has been saved (i.e., the device has rebooted and the new IP

address is active).

NOTE

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 5-13 displays.

5-26

2E48-27R/2E49-27R 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 MODULE.

ARE YOU SURE YOU WANT TO CONTINUE?

YES

19601-84

Figure 5-13 Conﬁguration Warning Screen

4. Use the arrow keys to highlight the YES command, then press

ENTER. The changes are saved and the device reboots.

Upon saving the new operational mode, the module will reboot.

NOTE

If the 2E4X-27R is set to 802.1Q SWITCHING, refer to your

Port Based VLAN User’s Guide to conﬁgure the devices for this

type of operation.

If the 2E4X-27R is set to SECURE FAST VLAN, refer to your

SecureFast documentation set to conﬁgure the devices for this

type of operation.

2E48-27R/2E49-27R 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

2E4X-27R 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 2E4X-27R 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

CAUTION

Management terminal from the port, and ends the Local

Management session. If the 2E4X-27R was previously

assigned a valid IP address, reenter Local 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 on the

2E4X-27R using Mode Switch 7 (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 for the LM or UPS application.

Selecting DISABLED disallows the COM port connection to the

terminal, providing additional device security.

If the COM port is reconﬁgured without a valid IP address set

on the device, the message shown in Figure 5-14 displays.

Do not continue unless the outcome of the action is fully

understood.

CAUTION

5-28

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

General Conﬁguration Screen

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 BOARD. DO YOU STILL WISH TO RECONFIGURE

THIS COM PORT?

YES

174252

Figure 5-14 COM Port Warning Screen

3. Use the arrow keys to highlight YES. Press ENTER.

4. If the port was ENABLED, the message “SAVED OK” appears, and

the edits are saved. 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 appear. Exiting without

NOTE

saving causes all edits to be lost.

2E48-27R/2E49-27R 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 arrows keys to highlight the Application field.

2. Use the SPACE bar or BACKSPACE to step through the available

settings until the operation you require appears. Table 5-3 lists the

available settings and their corresponding applications.

Table 5-3 COM Port Application Settings

Setting

Application

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 module.

CAUTION

Ensure that the module has a valid IP address before saving

changes to the COM port application. If the module 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.

5-30

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

General Conﬁguration Screen

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.

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 5-15 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 RESET THE BOARD.

ARE YOU SURE YOU WANT TO CLEAR NVRAM?

YES

174251

Figure 5-15 Clear NVRAM Warning Screen

5. Use the arrow keys to select YES and press ENTER. The message

“CLEARING NVRAM. REBOOT IN PROGRESS...” displays. The

2E4X-27R clears NVRAM and reboots. All user-entered parameters

default to factory default settings.

2E48-27R/2E49-27R 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 2E4X-27R is being bridged to an FDDI ring (for example,

via an optional HSIM-F6), IP Fragmentation should be enabled.

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

2E48-27R/2E49-27R 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 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

2E4X-27R. Access to the 2E4X-27R 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

2E48-27R LOCAL MANAGEMENT

SNMP Community Names

Device Type: 2E48-27R

Firmware Revision:

XX.XX.XX

BOOTPROM Revision: XX.XX.XX

Community Name

public

Access Policy

read-only

read-write

super-user

public

SAVE

RETURN

EXIT

23141-16

Figure 5-16 SNMP Community Names Screen

2E48-27R/2E49-27R 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

2E4X-27R 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

read-write

super-user

This community name gives the user read-only

access to the 2E4X-27R MIB objects, and

excludes access to security-protected ﬁelds of

read-write or super-user authorization.

This community name gives the user read-write

access to the 2E4X-27R MIB objects,

excluding security protected ﬁelds for

Super-User access only.

This community name gives the user read-write

access to the 2E4X-27R MIB objects and

allows the user to change all modiﬁable

parameters including community names, IP

addresses, traps, and SNMP objects.

5-34

2E48-27R/2E49-27R 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/Remote Management. The community name

assigned Super-User access is the only one that gives the user

complete access to Local/Remote 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 above the SAVE command. Edits are lost if they are not

NOTE

saved before exiting.

2E48-27R/2E49-27R 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 2E4X-27R 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 5-17.

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

2E48-27R LOCAL MANAGEMENT

SNMP Traps

Device Type: 2E48-27R

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

23141-17

Figure 5-17 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

2E48-27R/2E49-27R 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 in the Event Message Line.

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 2E4X-27R 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

appear above the SAVE command. Edits are lost if they are not

NOTE

saved before exiting.

The designated workstations now receive traps from the 2E4X-27R.

2E48-27R/2E49-27R 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, Figure 5-18, provides the basic setup

options to make a switch operational in your network.

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.

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 showing ports 1 through 8. To view or edit

the ﬁelds for other ports, highlight [9-16], [17-24], or [25-27] at the

bottom of the screen and press the ENTER key.

Event Message Line

2E48-27R LOCAL MANAGEMENT

Switch Configuration

Device Type: 2E48-27R

Firmware Revision:

XX.XX.XX

BOOTPROM Revision: XX.XX.XX

Switch Address: 00-00-1D-00-00-00

Number of Ports: 27

Type of STA:

[DEC]

300

Age Time (sec):

Port #

MAC Address

State

Status

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

[ENABLED]

[DISABLED]

[ENABLED]

[DISABLED]

[ENABLED]

[DISABLED]

[ENABLED]

[DISABLED]

[9-16]

SAVE

RETURN

EXIT

23141-18

Figure 5-18 Switch Conﬁguration Screen

5-38

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Switch Conﬁguration Screen

The following describes each ﬁeld of the Switch Conﬁguration screen:

Switch Address (Read-Only)

Displays the base MAC address of the switch.

Number of Ports (Read-Only)

Displays the total number of switched ports on the 2E4X-27R. Depending

on the optional interfaces, there can be 24 through 27.

Type of STA (Toggle)

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 2E4X-27R

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.

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.

2E48-27R/2E49-27R User’s Guide

5-39

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

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.

5.10.1 Setting the STA

The Spanning Tree Algorithm (STA) setting allows the user to set the

method that the switches use to decide which is the controller (Root)

switch when two or more switches are in parallel. The available selections

are IEEE, DEC, and NONE.

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.

5-40

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Switch Conﬁguration Screen

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” is 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.

2E48-27R/2E49-27R User’s Guide

5-41

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

5.11 ETHERNET FULL DUPLEX CONFIGURATION

SCREEN

The Ethernet Full Duplex Conﬁguration screen, Figure 5-19, allows the

user to set ports 1 through 24, individually or all at once, to either

Standard Ethernet or Full Duplex operation, and monitor each port to see

whether or not it is enabled and linked to another 10BASE-F device.

Refer to Section 5.15 to set the Operation Mode for ports 25 and 26.

To access the Ethernet Full Duplex Conﬁguration screen from the Device

Conﬁguration Menu screen, use the arrow keys to highlight the

ETHERNET FULL DUPLEX CONFIGURATION menu item and

press ENTER. The Ethernet Full Duplex Conﬁguration screen displays.

Event Message Line

2E48-27R LOCAL MANAGEMENT

Ethernet Full Duplex Configuration

Device Type: 2E48-27R

Firmware Revision:

XX.XX.XX

BOOTPROM Revision: XX.XX.XX

OPERATION MODE

PORT #

LINK STATUS

Link

PORT STATUS

ENABLED

[STANDARD ENET]

Link

No Link

Link

RETURN

SAVE

SET ALL PORTS: [FULL]

EXIT

[13-24]

RETURN

23141-21

Figure 5-19 Ethernet Full Duplex Conﬁguration Screen

This section explains each ﬁeld of the Full Duplex Conﬁguration screen.

PORT # (Read-only)

Identiﬁes the number of the port.

5-42

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Ethernet Full Duplex Conﬁguration Screen

OPERATION MODE (Toggle)

Allows the user to set the speciﬁed port to transmit and receive data

separately (Standard) or simultaneously (Full Duplex). Set this ﬁeld to

one of the following values:

•

STANDARD ENET – The port is running at 10 Mbps (default) and

either transmits data or receives data, but not both at the same time. To

set Ethernet ports for Standard operation, refer to Section 5.11.1.

•

FULL DUPLEX – The port transmits and receives data

simultaneously at 10 Mbps, thus enabling the port to effectively switch

at 20 Mbps. To set Ethernet ports for Full Duplex operation, refer to

Section 5.11.1.

LINK STATUS (Read-only)

Indicates whether there is a physical connection from this port to another

10BASE-F device. One of the following values displays:

•

Link – There is a 10BASE-F link signal present; there is a valid

physical connection from this port to another 10BASE-F device.

•

No Link – No 10BASE-F link signal present; there is no valid physical

connection from this port to another 10BASE-F device.

PORT STATUS (Read-only)

Indicates whether the port was turned on or off administratively. One of

the following values is displayed:

•

ENABLED – The port is turned on administratively.

DISABLED – The port is turned off administratively.

Enabling or disabling ports from the Switch Conﬁguration

screen is described in Section 5.10.3.

NOTE

SET ALL PORTS (Toggle)

All ports (1 through 24) can be set at once to either STANDARD or

FULL from this command ﬁeld. To set ports, refer to Section 5.11.1.

2E48-27R/2E49-27R User’s Guide

5-43

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

[1-12] or [13-24] (Navigation Key)

When the Full Duplex Conﬁguration screen displays, the current

operation mode and status information are displayed for the ﬁrst 12 ports.

This ﬁeld allows the user to step to the second screen for the same type of

information for ports 13 through 24. While on the second screen, the user

can navigate back to the ﬁrst screen by highlighting the [1-12] ﬁeld and

pressing ENTER. The user can change the Operation Mode ﬁelds while in

either the ﬁrst or second screen.

5.11.1 Setting the Operation Mode

The Operation Mode may be set to Standard Ethernet or Full Duplex

either one port at a time or all at once. The following steps describe

setting the port Operation Mode for individual ports followed by steps to

set the Operation Mode for all ports.

To set the Operation Mode for individual ports, proceed as follows:

1. Use the arrow keys to highlight the OPERATION MODE field

adjacent to the number of the port(s) that you plan to change.

The Operation Mode for the ﬁrst 12 ports can be changed on

the ﬁrst screen. To display the Operation Mode for Ports 13

NOTE

through 24, use the arrow keys to highlight the Ports [13-24]

ﬁeld and press ENTER. To again display the Operation Mode

for Ports 1 through 12, use the arrow keys to highlight the Ports

[1-12] ﬁeld and press ENTER.

2. Press the SPACE bar until the appropriate mode, FULL DUPLEX or

STANDARD ENET displays in the field.

3. Use the arrow keys to highlight the SAVE command.

4. Press ENTER. The message “SAVED OK” displays.

To set all Ethernet ports (1 through 24) for Full Duplex or Standard

Ethernet operation, proceed as follows:

1. Use the arrow keys to highlight the SET ALL PORTS field.

2. Press the SPACE bar until you see FULL or STANDARD.

3. Use the arrow keys to highlight the SAVE command.

4. Press ENTER. The message “SAVED OK” displays.

5-44

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Device Speciﬁc Conﬁguration Menu Screen

5.12 DEVICE SPECIFIC CONFIGURATION MENU

SCREEN

The Device Speciﬁc Conﬁguration Menu screen, Figure 5-20, allows the

user to select one of ﬁve screens to conﬁgure ports or check system

resources speciﬁc to the 2E4X-27R.

The PORT REDIRECT FUNCTION menu item on the Device

Speciﬁc Conﬁguration Menu screen may not display if the

NOTE

operational mode of the device is set to SECURE FAST VLAN:

Refer to the Release Notes to see if the functionality provided

above screens is supported. Section 5.7.9 describes how to

the set 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.

2E48-27R LOCAL MANAGEMENT

Device Specific Configuration Menu

Device Type: 2E48-27R

Firmware Revision:

XX.XX.XX

BOOTPROM Revision: XX.XX.XX

SYSTEM RESOURCES

HIGH SPEED INTERFACE CONFIGURATION

FLASH DOWNLOAD

PORT REDIRECT FUNCTION

BROADCAST SUPPRESSION

EXIT

RETURN

23144-20

Figure 5-20 Device Speciﬁc Conﬁguration Menu Screen

2E48-27R/2E49-27R User’s Guide

5-45

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

The following brieﬂy deﬁnes each selectable item of the Device Speciﬁc

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 2E4X-27R operation. For details, refer to

Section 5.13.

HIGH SPEED INTERFACE CONFIGURATION

The High Speed Interface Conﬁguration screen provides access to the

Fast Ethernet Interfaces screen and the HSIM Setup screen. For details,

refer to Section 5.14.

FLASH DOWNLOAD

The FLASH Download screen allows the user to force the 2E4X-27R to

download a new image ﬁle from a TFTP server to its FLASH memory.

For details, refer to Section 5.16.

PORT REDIRECT FUNCTION

The Port Redirect Function screen allows the user to redirect trafﬁc from

one or multiple switch ports to a speciﬁc destination switch port. For

details, refer to Section 5.17.

BROADCAST SUPPRESSION

The Broadcast Suppression screen allows the user to set a desired limit of

received broadcast frames that are forwarded per port per second. For

details, refer to Section 5.18.

802.1Q VLAN Conﬁguration

This menu item will only display if the 2E4X-27R has been conﬁgured to

operate as an IEEE 802.1Q switch as described in Section 5.11.1, Setting

the Operation Mode. When selected, this menu item opens the VLAN

Main Menu screen. For details about the VLAN Local Management

screens and how to use them to conﬁgure VLANs in the 2E4X-27R, refer

to the Cabletron Systems Port Based VLAN User’s Guide.

5-46

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

System Resources Screen

5.13 SYSTEM RESOURCES SCREEN

The System Resources screen, Figure 5-21, provides information

concerning the processor used in the 2E4X-27R 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

2E48-27R LOCAL MANAGEMENT

System Resources

Device Type: 2E48-27R

Firmware Revision:

XX.XX.XX

BOOTPROM Revision: XX.XX.XX

CPU Type: i960 HT 25 Mhz

Flash Memory Installed: 4 MB Available:

XXXXX Bytes

DRAM Installed:

NVRAM Installed:

16 MB

XX KB

Available:

Current Switch Utilization: 66%

Peak Switch Utilization: 75%

Reset Peak Switch Utilization: [NO]

RETURN

SAVE

EXIT

23142-23

Figure 5-21 System Resources Screen

The following brieﬂy deﬁnes each ﬁeld of the System Resources screen.

CPU Type (Read-only)

Indicates the microprocessor used in the 2E4X-27R.

2E48-27R/2E49-27R User’s Guide

5-47

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

Flash Memory Installed (Read-only)

Indicates the amount of FLASH memory installed in the 2E4X-27R and

how much is currently available.

DRAM Installed (Read-only)

Indicates the amount of DRAM installed in the 2E4X-27R and how much

of it is currently available.

NVRAM Installed (Read-only)

Indicates the amount of NVRAM installed in the 2E4X-27R 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)

Allows the user to reset the Peak Switch Utilization ﬁeld. The switch may

be set to either YES or NO as described in Section 5.13.1. YES resets the

Peak Switch Utilization ﬁeld to the current system trafﬁc.

5.13.1 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.

5-48

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

High Speed Interface Conﬁguration Menu Screen

5.14 HIGH SPEED INTERFACE CONFIGURATION MENU

SCREEN

The High Speed Interface Conﬁguration Menu screen, Figure 5-22,

applies to the Fast Ethernet Interface Modules and the High Speed

Interface Module.

This screen does not display unless one or two Fast Ethernet

Interface Modules and a High Speed Interface Module (HSIM)

NOTE

are installed.

If only Fast Ethernet Interface Modules or an HSIM is installed,

than the respective Fast Ethernet Interfaces screen or the

HSIM Setup screen displays instead of the High Speed

Interface Conﬁguration Menu screen.

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 displays.

2E48-27R LOCAL MANAGEMENT

High Speed Interface Configuration Menu

Device Type: 2E48-27R

Firmware Revision:

XX.XX.XX

BOOTPROM Revision: XX.XX.XX

FAST ETHERNET INTERFACES

HSIM

RETURN

EXIT

23143-53

Figure 5-22 High Speed Interface Conﬁguration Menu Screen

2E48-27R/2E49-27R User’s Guide

5-49

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

The following brieﬂy explains each screen accessible from the High

Speed Interface Conﬁguration Menu screen.

FAST ETHERNET INTERFACES

Displays a screen named High Speed Interface Conﬁguration. This screen

shows the types of Fast Ethernet Interface Modules installed in ports 25

and 26, 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. For details, refer to Section 5.15.

HSIM

Displays the types of interfaces installed in the High Speed Interface

Module (HSIM) slots. The HSIM screens are described in their respective

user’s guides.

5.15 HIGH SPEED INTERFACE CONFIGURATION

SCREEN

The High Speed Interface Conﬁguration screen, Figure 5-23,

applies only to ports 25 and 26. This screen supports the

NOTE

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 ports 25 and 26, 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.

To access the High Speed Interface Conﬁguration screen from the High

Speed Interface Conﬁguration Menu screen, use the arrow keys to

highlight the FAST ETHERNET INTERFACES menu item and press

ENTER. The High Speed Interface Conﬁguration screen displays.

5-50

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

High Speed Interface Conﬁguration Screen

Event Message Line

2E48-27R LOCAL MANAGEMENT

High Speed Interface Configuration

Device Type: 2E48-27R

Firmware Revision:

XX.XX.XX

BOOTPROM Revision: XX.XX.XX

Port 25

Port 26

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]

[Disabled]

[N/A]

SAVE

EXIT

RETURN

23141-24

Figure 5-23 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 ports 25 and 26. Figure 5-23 shows that there is an

FE-100TX interface installed in port 25 and no interface (indicated by

Unknown) in port 26.

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.

2E48-27R/2E49-27R User’s Guide

5-51

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

Current Oper. Mode (Read-only)

This ﬁeld displays the current operating mode of ports 25 and 26.

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 port slot is empty.

•

With a 100BASE-TX interface: Unknown, 10Base-T, 10Base-TFD

(full duplex), 100Base-TX, 100Base-TXFD (full duplex), or N/A

when the port slot is empty.

Desired Oper. Mode (Selectable)

This ﬁeld allows the user to select the desired operational mode for an

interface in port 25 or 26. The ﬁeld toggles between 100Base-FX and

100Base-FXFD (full duplex) when an FE-100FX or FE-100F3 is

installed. Section 5.15.1 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 5.15.2 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.

5-52

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

High Speed Interface Conﬁguration Screen

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 (25 or

26) 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 5.15.2.2 describes how to enable or disable advertised

modes.

5.15.1 Conﬁguring an FE-100FX or FE-100F3

When an FE-100FX or FE-100F3 is installed in port 25 or 26, it must be

manually set to operate in the same technology as the device at the other

end of the connected segment. Section 5.15.1.1 provides instructions for

manually conﬁguring the port with an FE-100FX or FE-100F3 interface.

5.15.1.1 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.

2E48-27R/2E49-27R User’s Guide

5-53

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

5.15.2 Conﬁguring an FE-100TX

In normal operation, a port (25 or 26) 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 5.15.2.1 and

Section 5.15.2.2 provide instructions for manually conﬁguring the port

with an FE-100TX installed.

5.15.2.1 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.

5.15.2.2 Setting the FE-100TX Advertised Ability

In normal operation, a port (25 or 26) 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.

5-54

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

FLASH Download Screen

3. Use the LEFT-ARROW key to move back to the Advertised Ability

selection and use the SPACE bar to select the next mode to enable or

disable.

4. Use the RIGHT-ARROW key to move across to the

Enabled/Disabled field to the right of the selection.

5. Use the SPACE bar to select Enabled or Disabled. Press ENTER.

Continue this process until you have completed enabling or disabling

the advertised modes.

6. Use the arrow keys to highlight the SAVE command. Press ENTER.

The message “SAVED OK” displays and Local Management saves

the changes to memory.

5.16 FLASH DOWNLOAD SCREEN

The Flash Download screen, shown in Figure 5-24, allows the user to

replace the information stored in the 2E4X-27R FLASH memory with a

new image ﬁle downloaded from a TFTP server.

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.2.1, Setting the Mode Switches, 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

2E48-27R/2E49-27R User’s Guide

5-55

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

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.

TFTP DOWNLOAD. WILL COMMIT TO FLASH. REBOOT IN PROGRESS...

2E48-27R LOCAL MANAGEMENT

Flash Download

Device Type: 2E48-27R

Firmware Revision:

XX.XX.XX

BOOTPROM Revision: XX.XX.XX

Download Method:

[TFTP]

[YES]

Reboot After Download:

TFTP Gateway IP Addr: 134.141.79.123

Last Image Server IP:

Last Image File Name:

Download Server IP:

Download File Name:

134.141.79.121

/tftpboot/2E48.hex

134.141.79.121

/tftpboot/2E48.hex

EXECUTE

EXIT

RETURN

23141-49

Figure 5-24 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)

This ﬁeld toggles between BOOTP, TFTP, and RUNTIME. If set for

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 2E4X-27R 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 5.16.1 describes how to download using

BootP.

5-56

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

FLASH Download Screen

Section 5.16.2 describes how to download using TFTP. Section 5.16.3

describes how to download using Runtime.

Reboot After Download (Modiﬁable only when RUNTIME is chosen.)

This ﬁeld notiﬁes the user that the 2E4X-27R will reboot after the

download is complete. If a Runtime Download is performed, this ﬁeld

toggles betweenYES and NO. IfYES is selected, the device reboots after

the download is completed. If NO is selected, the device continues 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 (Modiﬁable)

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 5-24), the following two additional ﬁelds

display:

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.

2E48-27R/2E49-27R User’s Guide

5-57

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

5.16.1 Image File Download Using BootP

To download a ﬁrmware image of FLASH to the 2E4X-27R using BootP,

proceed as follows:

1. Use the arrow keys to highlight the Download Method field.

2. Use the SPACE bar to select BOOTP.

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.

5.16.2 Image File Download Using TFTP

To download a ﬁrmware image of FLASH to the 2E4X-27R using TFTP,

proceed as follows:

1. Use the arrow keys to highlight the Download Method field.

2. Use the SPACE bar to select TFTP.

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/2E48.hex

5-58

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

FLASH Download Screen

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.

5.16.3 Image File Download Using Runtime

To download a ﬁrmware image of FLASH to the 2E4X-27R using

Runtime, proceed as follows:

1. Use the arrow keys to highlight the Download Method field.

2. Use the SPACE bar to select RUNTIME.

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/2E48.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.

2E48-27R/2E49-27R User’s Guide

5-59

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

5.17 PORT REDIRECT FUNCTION SCREEN

The Port Redirect Function screen may not be available

NOTE

depending on the operational mode setting of the device. Refer

to the Release Notes to see which operational modes support

the Port Redirect Function screen. Section 5.7.9 describes how

to conﬁgure the device to operate in this mode.

The Port Redirect Function screen, Figure 5-25, allows the user to set

each port (1 through 26) 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.

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.

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.

5-60

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Port Redirect Function Screen

Event Message Line

2E48-27R LOCAL MANAGEMENT

Port Redirect Function

Device Type: 2E48-27R

Firmware Revision:

XX.XX.XX

BOOTPROM Revision: XX.XX.XX

Source Port:

Destination Port:

============

Remap Errors:

============

OFF

Source Port [1]

Destination Port [1]

Errors [ON]

Status [ADD]

RETURN

SAVE

EXIT

23142_22

Figure 5-25 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.

Destination Port (Read-only)

Shows which ports are currently set as destination ports.

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)

Allows a selected port [n] to be changed to a source port. For details, refer

to Section 5.17.2.

2E48-27R/2E49-27R User’s Guide

5-61

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

Destination Port [n] (Selectable)

Allows a selected port [n] to be changed to a destination port. For details,

refer to Section 5.17.2.

Errors (Toggle)

Allows the user to conﬁgure the source ports to either ON to send errored

frames to selected destination ports, or OFF to drop errored frames, and

send only valid trafﬁc to the destination ports. The default setting of this

ﬁeld is ON.

Status (Toggle)

Allows the addition or deletion of source and destination ports selected in

the Source Port [n] and Destination Port [n] ﬁelds.

5.17.1 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.

5-62

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Port Redirect Function Screen

5.17.2 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 the Status field.

6. Use the SPACE bar to select either the ADD or DEL (delete) option.

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 the Errors field.

8. Use the SPACE bar to select either the ON or OFF option and press

ENTER. ON forces the source port to forward errored frames to the

destination port(s). OFF forces the errored 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.

2E48-27R/2E49-27R User’s Guide

5-63

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

5.18 BROADCAST SUPPRESSION SCREEN

The Broadcast Suppression screen, Figure 5-26, allows the user to set a

desired limit of receive broadcast frames that are switched out to the other

ports.

The Broadcast Suppression screen may not be available if the

operational mode of the device is set to SECURE FAST VLAN.

NOTE

Refer to the Release Notes to see which operational modes

support the Broadcast Suppression screen. Section 5.7.9,

Setting the Operational Mode, describes how to conﬁgure the

device to operate in this mode.

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

2E48-27R LOCAL MANAGEMENT

Broadcast Suppression

Device Type: 2E48-27R

Firmware Revision:

XX.XX.XX

BOOTPROM Revision: XX.XX.XX

PORT #

Total RX

Peak Rate

150000

Time Since Peak

999:23:59

Threshold

150000

Reset Peak

[NO]

12345678910

[NO]

RETURN

SAVE

EXIT

[13-24]

23141-56

Figure 5-26 Broadcast Suppression Screen

5-64

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Broadcast Suppression Screen

The following explains each ﬁeld of the Broadcast Suppression screen:

PORT # (Read-only)

Identiﬁes the number of the port.

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)

Allows 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. For details, refer to Section 5.18.1.

[1-12] or [13-24] (Navigation Key)

When the Broadcast Suppression screen displays, the current statistics are

displayed for the ﬁrst 12 ports. This ﬁeld allows the user to step to a

second screen for the same type of information for ports 13 through 24.

While on the second screen, the user can navigate back to the ﬁrst screen

by highlighting the [1-12] ﬁeld and pressing ENTER. The user can

change the Threshold or Reset Peak ﬁelds while in either the ﬁrst or

second screen. For details, refer to Section 5.18.2.

5.18.1 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.).

2E48-27R/2E49-27R User’s Guide

5-65

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

3. Use the arrow keys to highlight the SAVE command at the bottom of

the screen.

4. Press ENTER. The message “SAVED OK” displays.

5.18.2 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 arrows 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.

5.19 DEVICE STATISTICS MENU SCREEN

The Device Statistics Menu screen, Figure 5-27, provides access to

screens that allow the user to obtain switch statistics about frame trafﬁc

through each port and view operating statistics about each port.

The SWITCH STATISTICS menu item on the Device Statistics

Menu screen will not display if the operational mode of the

NOTE

device is set to SECURE FAST VLAN:

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.

5-66

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Device Statistics Menu Screen

2E48-27R LOCAL MANAGEMENT

Device Statistics Menu

Device Type: 2E48-27R

Firmware Revision:

XX.XX.XX

BOOTPROM Revision: XX.XX.XX

SWITCH STATISTICS

INTERFACE STATISTICS

RMON STATISTICS

RETURN

EXIT

23142-67

Figure 5-27 Device Statistics Menu Screen

The Device Statistics Menu screen displays the following menu items:

SWITCH STATISTICS

The Switch Statistics screen lists the number of frames received,

transmitted, ﬁltered, and forwarded by each interface. For details, refer to

Section 5.20.

INTERFACE STATISTICS

The Interface Statistics screen provides the MIB-II statistics for each

switched interface, on a interface-by-interface basis. For details, refer to

Section 5.21.

RMON STATISTICS

The RMON Statistics screen displays all the statistics gathered by the

embedded RMON agent built into the 2E4X-27R. For details, refer to

Section 5.22.

2E48-27R/2E49-27R User’s Guide

5-67

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

5.20 SWITCH STATISTICS SCREEN

The Switch Statistics screen, Figure 5-28, lists the number of frames

received, transmitted, ﬁltered, and forwarded by each interface.

The Switch Statistics screen is not available if the operational

mode of the device is set to SECURE FAST VLAN.

NOTE

Section 5.7.9 describes how to set the operational mode.

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

2E48-27R LOCAL MANAGEMENT

Switch Statistics

Device Type: 2E48-27R

Firmware Revision:

XX.XX.XX

BOOTPROM Revision: XX.XX.XX

Port #

Frames Rcvd

Frames Txmtd

100

Frames Fltrd

Frames Frwded

100

[13-24]

CLEAR COUNTERS

EXIT

RETURN

23142-26

Figure 5-28 Switch Statistics Screen

The Switch Statistics screen displays the following ﬁelds:

Port # (Read-Only)

Identiﬁes the interface or port number.

5-68

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Switch Statistics Screen

Frames Rcvd (Read-Only)

Displays the number of frames received by the interface since last

power-up or reset.

Frames Txmtd (Read-Only)

Displays the number of frames transmitted by the interface since last

power-up or reset.

Frames Fltrd (Read-Only)

Displays the number of frames ﬁltered by the interface since last

power-up or reset.

Frames Frwded (Read-Only)

Displays the number of frames forwarded by the interface.

[1-12], [13-24], or [25-27] (Navigation Key)

When the Switch Statistics screen displays, the statistics are displayed for

the ﬁrst 12 ports. These ﬁelds allow the user to step to a second or third

screen for the same type of information for ports 13 through 24 or 25

through 27. While on the second or third screen, the user can navigate

back to earlier screens by highlighting the [1-12] and/or [13-24] ﬁelds and

pressing ENTER.

CLEAR COUNTERS (Command)

This command clears all the counters of the ports displayed to zero. For

details on how to use this ﬁeld, refer to Section 5.20.1.

5.20.1 Using the Clear Counters Command

To reset all the counters of the ports displayed to zero, perform the

following steps:

1. Use the arrow keys to highlight the CLEAR COUNTERS command.

2. Press ENTER, the counters are reset to zero.

2E48-27R/2E49-27R User’s Guide

5-69

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

5.21 INTERFACE STATISTICS SCREEN

The Interface Statistics screen, Figure 5-29, is used to gather MIB-II

statistics for the 2E4X-27R interfaces (ports 1 through 26) with the

exception of an installed HSIM.

Cabletron Systems HSIMs gather their own statistics, and 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

2E48-27R LOCAL MANAGEMENT

Interface Statistics

Device Type: 2E48-27R

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

InUnicast:

6789

Last Change:

Admin Status:

Oper Status:

InNonUnicast:

InDiscards:

InErrors:

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

23141_64

Figure 5-29 Interface Statistics Screen

5-70

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Interface Statistics Screen

The following deﬁnitions explain each ﬁeld of the Interface Statistics

screen:

Interface (Read-Only)

This ﬁeld displays the Interface number for which statistics are currently

being displayed. Figure 5-29 shows the Interface ﬁeld displaying 1. This

represents Port 1 of the device. To view other interface statistics, refer to

Section 5.21.1.

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.

2E48-27R/2E49-27R User’s Guide

5-71

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

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.

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 frames queue. The ﬁeld

represents the total number of frames that can be contained 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.

5-72

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Interface Statistics Screen

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.

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 5.21.1.

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 5.21.2.

5.21.1 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 will

change until ENTER is pressed).

2E48-27R/2E49-27R User’s Guide

5-73

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

5.21.2 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.

2. Press ENTER, the counters for the selected interface are reset to zero.

5.22 RMON STATISTICS SCREEN

RMON statistics for each interface, on an interface-by-interface basis, are

viewed through the RMON Statistics screen shown in Figure 5-30.

The RMON Statistics screen provides statistics for all front

panel Ethernet Interfaces, and any Fast Ethernet Interface

NOTE

Modules installed in the 2E4X-27R. This screen does not

provide statistics for an installed HSIM.

To access the RMON Statistics screen, use the arrow keys to highlight the

RMON STATISTICS ﬁeld on the Device Statistics Menu screen and

press ENTER. The RMON Statistics screen displays.

Event Message Line

2E48-27R LOCAL MANAGEMENT

RMON Statistics

Device Type: 2E48-27R

Firmware Revision:

XX.XX.XX

BOOTPROM Revision: XX.XX.XX

RMON Index:

Data Source:

Owner: monitor

Status: valid

IfIndex.1

Drop Events:

Collisions:

Total Packets:

Total Octets:

64 Octets:

Broadcast Pkts:

Multicasts:

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

23142_65

Figure 5-30 RMON Statistics Screen

5-74

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

RMON Statistics Screen

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 2E4X-27R has an embedded RMON agent that gathers

statistics for each interface on the device.

Data Source (Read-only)

This ﬁeld displays the source of the statistics data that is currently being

displayed on the screen. Figure 5-30 shows that the data source for this

RMON index is Port 1 by displaying the name IfIndex.1. If the screen was

displaying RMON statistics for Port 4, the name displayed would be

IfIndex.4.

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”.

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.

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.

2E48-27R/2E49-27R User’s Guide

5-75

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

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 have a valid

CRC.

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

Frame Check Sequence (FCS), were less than 64 bytes in length

(excluding framing bits, but including FCS bytes), and have an invalid

CRC.

It is normal for the Fragments ﬁeld to increment. This is

because the RMON agent increments the ﬁeld when runts

NOTE

(frames less than 64 bytes) are 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 had either a bad FCS or 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.

5-76

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

RMON Statistics Screen

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).

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 5.22.1.

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 5.22.2.

2E48-27R/2E49-27R User’s Guide

5-77

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

5.22.1 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 will

change until ENTER is pressed).

5.22.2 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.

5-78

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Network Tools

5.23 NETWORK TOOLS

The Network Tools function allows the user to access and manage

network devices. Figure 5-31 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 Help 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>'.

09081-29

Figure 5-31 Network Tools Help 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.

Type help at the prompt to list all the commands that are

available for the device in the current operational mode. A

command used incorrectly (wrong syntax) will prompt a display

of the correct usage. Use lower case characters when entering

commands in Network Tools.

TIP

2E48-27R/2E49-27R User’s Guide

5-79

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

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. The atm_stp_state command selection only displays

when an HSIM is installed.

•

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.

5-80

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Network Tools

5.23.1 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 must specify the arp command 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

2E48-27R/2E49-27R User’s Guide

5-81

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

Example:

-> arp -a

Media Type

3(dynamic)

# Interface

# 30

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

# 30

-> 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

5-82

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Network Tools

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

# Default route is 147.152.42.32 on interface 2

-> defroute

# Default route is 147.152.42.32 on interface 2

-> defroute delete

# Default route is not currently set.

05142-69

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.

2E48-27R/2E49-27R User’s Guide

5-83

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

Example:

-> netstat -i

Speed

Interface + Description

Admin Oper MAC Addr

MTU

10000000

# 1 (ethernet -csmacd)

# 2 (ethernet - csmacd)

# 3 (ethernet - csmacd)

# 4 (ethernet - csmacd)

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

-> netstat -r

Destination

Next-hop

Interface

# Default Route

# 134.141.0.0

DirectConnection

05141-70

ping:

Syntax:

ping [IP address]

Description:

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

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.

5-84

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Network Tools

The Network Tools connection to the device will be terminated

upon execution of this command.

NOTE

Options:

Not Applicable

Example:

-> reset

RESET: Are you *SURE* ? -> Y

17422-45

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

Example:

-> show Appletalk interfaces

AdminStatus

enabled

disabled

# Interface

# 1

# 2

MTU Forwarding

1500 enabled

1500 disabled

OperStatus

enabled

disabled

Framing

ethernet

-> show IP ARP

# Interface

MediaType

3 (dynamic)

PhysicalAddress

00:00:1d:04:40:5d

08:00:20:0e:d8:31

NetworkAddress

123.456.40.1

123.456.40.30

# 3

# 4

# Number of valid entries: 2

17422-46

2E48-27R/2E49-27R User’s Guide

5-85

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

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

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

RESET: Are you *SURE* ? -> Y

22512-76

5-86

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Network Tools

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

Example:

-> telnet 134.141.12.345

Trying 134.141.12.345

Connected to 134.141.12.345

SunOS UNIX (server1)

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

2E48-27R/2E49-27R User’s Guide

5-87

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

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

atm_stp_state:

The atm_stp_state command is only available if an

NOTE

HSIM-A6DP is installed in the module (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.

Options:

enable, disable, status

Example:

-> atm_stp_state status

Atm Stp is Enabled

-> atm_stp_state disable

-> atm_stp_state enable

2314-79

5-88

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Network Tools

5.23.2 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

05142-72

2E48-27R/2E49-27R User’s Guide

5-89

Download from Www.Somanuals.com. All Manuals Search And Download.

Chapter 5: Local Management

5-90

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

APPENDIX A

SPECIFICATIONS

This appendix provides operating speciﬁcations for the Cabletron

Systems 2E4X-27R. Cabletron Systems reserves the right to change these

speciﬁcations at any time without notice.

A.1 DEVICE SPECIFICATIONS

Processor:

Intel i960 RISC processor

Dynamic Random Access

Memory (DRAM):

16 MB

4 MB

FLASH Memory:

A.2 PHYSICAL PROPERTIES

Dimensions:

7.11H x 43.18W x 46.99D (cm)

2.8H x 17W x 18.5D (in)

Weight (Unit) :

5.45 kg (12 lb)

200,000 hours

MTBF (Predicted):

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

2.5 A

50/60 Hz

250 VA

1.25 A

2E48-27R/2E49-27R User’s Guide

A-1

Download from Www.Somanuals.com. All Manuals Search And Download.

Appendix A: Speciﬁcations

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

2E48-27R, Ports 1 through 24: Ethernet multimode ﬁber optic (802.3

10BASE-F compliant) with ST type

connectors.

2E49-27R, Ports 1 through 24: Ethernet single mode ﬁber optic (FOIRL

compliant) with ST type connectors.

Slots for optional ports 25

and 26:

Slots accept three types of optional Fast

Ethernet Interface Modules:

the FE100-TX, the FE100-FX, and the

FE100-F3. Check the Release Notes for

other modules that may be available.

Slot for optional port 27:

Slot accepts optional High Speed

Interface Modules.

A-2

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

COM Port/Pin Assignments

A.6 COM PORT/PIN 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

Signal Name

Input/Output

Transmit Data (XMT)

Output

Input

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

A.7 REGULATORY COMPLIANCE

This equipment meets the following safety and electromagnetic

compatibility (EMC) requirements:

Safety

UL 1950, CSA C22.2 No. 950,

EN 60950, IEC 950, and 73/23/EEC

Electromagnetic

Compatibility (EMC)

FCC Part 15, EN 55022, CSA C108.8,

EN 50082-1, AS/NZS 3548, VCCI V-3,

and 89/336/EEC

2E48-27R/2E49-27R User’s Guide

A-3

Download from Www.Somanuals.com. All Manuals Search And Download.

Appendix A: Speciﬁcations

A-4

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

APPENDIX B

FE-100TX, FE-100FX, AND FE-100F3

SPECIFICATIONS

The 2E4X-27R 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

Twisted Pair (UTP) cabling that has an impedance between 85

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

100

FE-100TX

16651_05

Figure B-1 FE-100TX RJ45 Pinouts

2E48-27R/2E49-27R 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.1.1 Auto-Negotiation

When using the optional FE-100TX Fast Ethernet Interface Modules,

these twisted pair ports have the ability to 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, the Interface Module port

adjusts to 100 Mbps when the device on the other end of the connection

can also adjust between 10 Mbps or 100 Mbps. If the device on the other

end of the connection can only operate at 10 Mbps, then the port simply

adjusts to 10 Mbps operation.

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 2E4X-27R cannot auto-negotiate, the 2E4X-27R

interface operates according to the capabilities of the other device.

B-2

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

FE-100FX

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

1960-40

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

2E48-27R/2E49-27R 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.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

19601-68

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

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

B-4

2E48-27R/2E49-27R 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.

The top cover must be removed to gain access to the mode bank switches

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)

2E48-27R/2E49-27R 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.1 REQUIRED TOOLS

You need the following tools to perform the procedures provided in this

appendix:

•

Antistatic wrist strap

Phillips screwdriver

C.2 REMOVING THE CHASSIS COVER

This section describes how to remove the 2E4X-27R chassis cover.

DO NOT REMOVE THE COVER FROM THE 2E4X-27R

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 2E4X-27R AGAIN UNTIL THE

COVER AND SCREWS ARE IN PLACE.

DECKEL VON DAS 2E4X-27R NICHT ABZIEHEN UNTER

SPANNUNG. GEFAHR FÜR DAS PERSONNAL UND/ODER

DAS GERÄT WEGEN GEFÄHRLICHE SPANNUNGEN

ENSTEHT.

2E4X-27R 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

2E48-27R/2E49-27R 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 2E4X-27R from the network as follows:

a. Unplug both power cords from the rear of the chassis.

TURN OFF THE 2E4X-27R BY UNPLUGGING THE POWER

CORD FROM THE REAR OF THE CHASSIS.

AM HINTEN DES 2E4X-27R STECHEI ABZIEHEN UM AUS

ZU SCHALTEN.

APAGUE EL 2E4X-27R DESENCHUFE EL CABLE DE LA

UNIDAD.

Before performing step b, mark the cables connected to the

2E4X-27R according to their associated port numbers. This is

recommended for ease of reinstallation.

TIP

b. Disconnect all network cables attached to the 2E4X-27R.

2. If the 2E4X-27R is rack mounted, remove it from the rack and remove

the rackmount brackets (refer to Chapter 3, Installation).

2E48-27R/2E49-27R 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

Note: If the device was rack mounted, the four screws fastening the cover to

the front panel are removed and installed along with the rackmount brackets.

19602-30

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.

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.

C-4

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Removing the Chassis Cover

TOP VIEW WITHOUT COVER

Redundant

Power

Supply

Primary

Power

Supply

MODE SWITCH BANK

Flash

OFF

DRAM

FRONT PANEL

23141-05

Figure C-2 2E4X-27R Mode Switch Location/Component Layout

•

Switch 6 – Forced BootP.

After changing the position of switch 6, DO NOT reapply power

to the chassis until there is a station on the network acting as a

PootP server, which contains the image ﬁle.

NOTE

DO NOT attempt a Forced BootP unless a BootP server has been

configured for the 2E4X-27R. The BootP server references the

location of a station acting as a Trivial File Transfer Protocol (TFTP)

server containing the 2E4X-27R image file.

When the position of Switch 6 is changed and the power is cycled to

the 2E4X-27R, 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 2E4X-27R

continues to request either the BootP server or the TFTP server until

the RESET button on the 2E4X-27R is pressed. Once the RESET

button is pressed, the 2E4X-27R resets after one minute and loads the

image stored in FLASH memory.

2E48-27R/2E49-27R 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 of the device. All user-entered

parameters, such as the IP address, device names, etc., are reset to the

factory default settings. Once the 2E4X-27R 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 of the

device. Once the 2E4X-27R 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

2E48-27R/2E49-27R 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 on for ports 25 and 26 and the High Speed Interface Module

for port 27.

TOP VIEWS WITHOUT COVERS

Primary

Power

Supply

Redundant

Power

Supply

Connectors

FRONT PANEL

Optional Fast Ethernet

Interface Modules

Primary

Power

Supply

Redundant

Power

Supply

Connector

Optional HSIM is installed

above the optional Fast

Ethernet Interface Modules

FRONT PANEL

Optional interface

modules on HSIM

23141-11

Figure C-3 Fast Ethernet Interface Module Connector Location

2E48-27R/2E49-27R 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 25 or 26, 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 2E4X-27R 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 2E4X-27R.

CAUTION

When installing Fast Ethernet Interface Modules in both port

slots 25 and 26, remove the coverplates from both slot

openings. In the following instructions, the optional module is

shown being installed in port slot 26.

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

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Installing Optional Fast Ethernet Interface Modules

Coverplate

Rear

Standoff

Front

Standoffs

2314-38

Figure C-4 Coverplate Removal

2. Remove the screw from the rear standoff. Save the screw.

When installing an FE-100FX or FE-100F3 module into the

2E4X-27R, remove the rubber plug on the module before

proceeding.

CAUTION

3. See Figure C-5. Gently pull the faceplate of the 2E4X-27R 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

2E48-27R/2E49-27R 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

Connector

FE-100TX

100

Rear

Standoff

Motherboard

Connector

Front

Standoffs

2314-39

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. The installation is complete.

7. Reinstall the cover.

C-10

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

INDEX

Numerics

100BASE-FX

Cable specifications

cable length 2-2

10BASE-FX

connection 3-9

10BASE-T

requirements 2-1, 2-2

2E48-27R/2E49-27R front panel 1-3

2E4X-27R

100BASE-F network 2-1, 2-2

100BASE-FX MMF 2-2

100BASE-TX network 2-2

Chassis cover, removal of C-2

COM port 5-28

pin assignments A-3

Command set 5-80

overview of 1-2

802.1D switching

Connecting to the network 3-8

Crossover switch B-1

setting operational mode for 5-26

802.1D switching mode

hierarchy of 5-10

Default gateway 5-18, 5-23

Device Configuration screen 5-14

Device date 5-18

802.1Q switching

setting operational mode for 5-26

802.1Q switching mode

hierarchy of 5-10

Device Menu screen 5-13

Device Specific Configuration Menu

screen 5-45

Device Statistics Menu screen 5-66

Device time 5-18

Document conventions 1-8

Access policy 5-34

Age time 5-39

Auto-Negotiation

description of B-2

Environmental requirements A-2

Ethernet Full Duplex Configuration

screen 5-42

Bridge Configuration screen

state 5-39

link status 5-43

Broadcast Suppression screen 5-64

peak rate 5-65

operation mode 5-43, 5-44

port status 5-43

port # 5-65

port# 5-42

reset peak 5-65

threshold 5-65

set all ports 5-43

time since peak 5-65

total RX 5-65

FE-100F3

Built-in Commands

use of 5-80

transmitter specifications B-4

FE-100FX

transmitter specifications B-3

2E48-27R/2E49-27R User’s Guide

Index-1

Download from Www.Somanuals.com. All Manuals Search And Download.

Index

FE-100TX

Hierarchy

RJ45 Pinouts B-1

Features

optional 1-7

Fiber connection

802.1D switching mode 5-10

802.1Q switching mode 5-10

SecureFast VLAN mode 5-11

High Speed Configuration Interface

screen 5-50

SC to SC 3-13

Flash Download screen 5-55

download file name 5-57

download method 5-56

download serverIP 5-57

last image file name 5-57

last image serverIP 5-57

reboot after download 5-57

TFTP gateway IP addr 5-57

Fragmentation 5-20

Full Duplex Configuration screen

full duplex 5-43

High Speed Interface Configuration

Menu screen 5-49

High Speed Interface screen

advertised ability 5-53

configuring an FE-100FX 5-53

configuring an FE-100TX 5-54

current operational mode 5-52

desired operational mode 5-52

link status 5-51

port type 5-51

setting the FE-100FX 5-53

setting the FE-100TX 5-54

standard enet 5-43

General Configuration screen 5-17

application 5-20

Installation

connecting to the network 3-8

Fast Ethernet Interface Module C-7

in a rack 3-4

clear NVRAM 5-20

com 5-19

COM port 5-28

default gateway 5-18, 5-23

device date 5-18

on a tabletop or shelf 3-3

Interface Statistics Screen

InDiscards 5-71

InNonUnicast 5-71

InOctets 5-71

interface 5-71, 5-73

InUnicast 5-71

InUnknownProtos 5-72

last change 5-72

link status 5-73

device time 5-18, 5-19, 5-24, 5-25

IP address 5-18, 5-20

IP fragmentation 5-20

MAC address 5-17

Operational Mode 5-26

operational mode 5-19

screen lockout time 5-19, 5-26

screen refresh time 5-18, 5-25

subnet mask 5-18, 5-21

Getting help

instructions for

MTU 5-73

name 5-71

oper status 5-73

Help

OutDiscards 5-72

related manuals 1-10

Index-2

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Index

OutErrors 5-72

OutNonUnicast 5-72

OutOctets 5-72

Network connections 3-8

Network Tools

built-in commands 5-80

arp 5-81

OutQLen 5-72

OutUnicast 5-72

speed 5-73

atm_stp_state 5-88

bridge 5-82

Interface Statistics screen

address 5-72

defroute 5-83

netstat 5-83

IP address 5-18, 5-20

IP Fragmentation 5-20

enabling/disabling of 5-32

ping 5-84

show 5-85

special commands 5-80

done 5-89

Keyboard conventions 5-2

LANVIEW LEDs 4-1

Local Management

exiting from 5-11

introduction to 1-5

navigating the screens 5-9

Password screen 5-8

Local Management screens

selection of 5-11

exit 5-89

quit 5-89

Network Tools commands

traceroute 5-88

Network Tools screen

accessing of 5-79

NVRAM

clearing of 5-31

Management

Operational Mode 5-26

use of 1-5

Management Terminal

COM port connection of 5-3, 5-4

setup of 5-3, 5-5

Mode Switch

Password screen 5-8

Passwords 5-33

Physical properties A-1

Port Redirect Function screen

destination port 5-61

remap errors 5-61

source port

setting C-4

Port Redirect Function screen

destination port 5-62

source port 5-61

5-61

status 5-62

Navigating screens 5-9

Network connection

FE-100FX/FE-100F3 3-12

FX-100TX 3-10

Power connection

2E48-27R or 2E49-27R 3-7

2E48-27R/2E49-27R User’s Guide

Index-3

Download from Www.Somanuals.com. All Manuals Search And Download.

Index

Ethernet Full Duplex Configuration

screen 5-42

exiting from 5-11

FLASH Download screen 5-55

General Configuration screen 5-17

hierarchy of 5-9

High Speed Interface Configuration

Menu screen 5-49

Regulatory Compliance A-3

RESET button 4-7

RMON Statistics screen

1024 – 1518 octets 5-77

128 – 255 octets 5-77

256 – 511octets 5-77

512 – 1023 octets 5-77

64 octets 5-77

High Speed Interface Configuration

screen 5-50

65 – 127 5-77

Interface Statistics screen 5-70

navigation of 5-9

Network Tools screen 5-79

Password screen 5-8

65 – 127 octets 5-77

broadcast pkts 5-75

CLEAR COUNTERS 5-77

collisions 5-75

Port Redirect Function screen 5-60

RMON Statistics screen 5-74

selection of 5-11

SNMP Community Names

screen 5-33

CRC align errors 5-76

data source 5-75

drop events 5-75

fragments 5-76

index 5-77

SNMP Traps screen 5-36

Switch Configuration screen 5-38

Switch Statistics screen 5-68

System Resources screen 5-47

SecureFast VLAN

setting operational mode for 5-26

SecureFast VLAN mode

hierarchy of 5-11

jabbers 5-76

multicasts 5-76

oversize packets 5-76

owner 5-75

RMON index 5-75

status 5-75

total octets 5-77

total packets 5-76

undersize packets 5-76

Runtime IP address discovery 1-5

Setup of

management terminal 5-5

Safety information

laser iv

SNMP Community Names screen

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 5-39

Screen lockout time 5-26

Screen refresh time 5-25

Screens

Broadcast Suppression screen 5-64

Device Configuration screen 5-14

Device Menu screen 5-13

Device Specific Configuration

Menu screen 5-45

Device Statistics Menu screen 5-66

Index-4

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Index

Special commands

use of 5-80

System Resources screen

CPU type 5-47

Special Commands, Network

Tools 5-89

current switch utilization 5-48

DRAM installed 5-48

Specifications A-1

Standards compatibility 1-6

Subnet mask 5-18, 5-21

Switch address 5-39

Switch Configuration screen 5-38

age time 5-39, 5-41

MAC address 5-39

number of ports 5-39

port # 5-39

FLASH memory installed 5-48

NVRAM installed 5-48

peak switch utilization 5-48

reset peak switch utilization 5-48

Technical Support

See Getting Help

Telnet connections 5-6

TFTP gateway Ip addr 5-57

Trap table configuration 5-37

Traps

port status 5-41

selecting the STA 5-40

status 5-40

switch address 5-39

type of STA 5-39

Switch Statistics screen 5-68

clearing counters 5-69

frames fltrd 5-69

frames frwded 5-69

frames rcvd 5-69

frames txmtd 5-69

interface # 5-68

enable 5-37

Troubleshooting 4-1

checklist 4-6

Uninterruptible Power Supply

COM configuration for 5-7

connection of 5-7

Unpacking 3-1

2E48-27R/2E49-27R User’s Guide

Index-5

Download from Www.Somanuals.com. All Manuals Search And Download.

Index

VLAN

configuration of 5-46

Index-6

2E48-27R/2E49-27R User’s Guide

Download from Www.Somanuals.com. All Manuals Search And Download.

Black Box Digital Camera Optio S5z User Manual
Black Decker Juicer JE2001 User Manual
Black Decker Oven CTO7000 User Manual
Bosch Appliances Washer 24202UC User Manual
Boston Acoustics Speaker VRi793 User Manual
Brother Printer DCP 115C User Manual
Bushnell Binoculars 118322 User Manual
Canon All in One Printer PIXMA PRO 10 User Manual
Carrier Furnace 58EJA User Manual
Casablanca Fan Company Outdoor Ceiling Fan C8U47M AT1206 User Manual