3com 5203R-CSE, 5203R-CSDI, 5203R-CSD, 5203R-CSIX, 4203R-CSE Edge Router Module Installation Guide for Token Ring

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Edge Router Module

Installation Guide

for

Token Ring

Document Number 17-00677-2

Printed April 1996

Model Numbers:

5203R-CSE 5203R-CSDI 5203R-CSD 5203R-CSIX 4203R-CSE 4203R-CSDI 4203R-CSD 4203R-CSIX

3Com Co rporation 118 Turnpike Road

Southbo rough, MA 0177 2-1886

U.S.A.

(508) 46 0- 8900

FAX (508) 460-8950

Federal Communications Comm ission Notice

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 i s operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to rad io communications. Operation of this equipment in a residential area is likely to cause harmful interfer ence, in which case you must correct the interference at your own expense.

Canadian Emissions Requirements

This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.

Cet apparei l numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.

VDE Class B Compl ianc e

Hiermit wird bescheinigt, dass der 5203R-CSE, 5203R-CSDI, 5203R-CSD, 5203R-CSIX, 4203R-CSE, 4203R-CSDI, 4203R-CSD, 4203R-CSIX in Üebereinstimmung mit den Bestimmungen der Vfg 243/1991 funkentstöert ist.

Der Deutschen Bundespost wurde das Inverkehrbringen dieses Geraetes angezeigt und die Berechtigung zur Üeberprüefung der Serie auf Einhaltung der Bestimmungen eingeräeumt.

Einhaltung mit betreffenden Bestimmugen kommt darauf an, dass geschirmte Ausfuehrungen gebraucht werden. Fuer die Beschaffung richtiger Ausfuehrungen ist der Betreiber verantwortlich.

This is to certify that model numbers 5203R-CSE, 5203R-CSDI, 5203R-CSD, 5203R-CSIX, 4203R-CSE, 4203R-CSDI, 4203R-CSD, 4203R-CSIX are shielded against radio interference in accor dance with the provisions of Vfg 243/1991.

The German Postal Services have been advised that this equipment is being placed on the market and that they have been given the right to inspect the series for compliance with regulations.

Compliance with applicable regulations depends on the use of shielded cables. The user is responsible for procuring the appropriate cables.

EN55022/CISPR22 Com p lian ce

This equipment conforms to the Class A emissions limits for a digital device as defin ed by EN55022 (CISPR22).

VCCI Class 1 Compliance

This equipment is in the 1st Class category (information equipment to be used in commercial or industrial areas) and conforms to the standards set by the V oluntary Control Council for Inter fere nce by Information Technology Equipment aimed at preventing radio interference in commercial or industrial areas.

Consequently, when the equipment is used in a residential area or in an adjacent area, r adio interferenc e may be caused to radio and TV receivers, and so on.

Read the instructions for correct handling.

Fiber Cable Classification Notice

Use this equipment only with fiber cable classified by Underwriters Laboratories as to fire and smoke char acteristics in accordance with Section 770-2(b) and Section 725-2(b) of the National Electrical Code.

UK General Approval Statem en t

The ONcore Switching Hub, ONline System Concentrator, and ONsemble StackSyste m Hub are manufactur ed to the International Safety Standard EN 60950 and are approve d in the UK under the Genera l Approval Number NS/G/12345/J/100003 for indirect connection to the public telecommunication network.

Disclaimer

The information in this document is subject to change without notice and should not be construed as a commitment by 3Com Corporation. 3Com Corporation assumes no responsibility for any errors that may appear in this document.

1996 by 3Com Corporation. Printed in U.S.A. All rights reserve d. The information contained herein is the exclusive and confidential property of 3Com Corporation. No part of this manual may be disclosed or reproduced in whole or in part without permission from 3Com Corporation.

Trademarks

Because of the nature of this material, numerous hardware and software products are mentioned by name. In most, if not all cases, these product names are claimed as trademarks by the companies that man ufacture the products. It is not our intent to claim these names or trademarks as our own.

ONcore, and ONsemble are registered trademarks of 3C om Corporation.

ii Token Ring Edge Router Module Installation Guide

OpenHub, ONdemand, ONline, StackJack, and StackSystem are trademarks of 3Com Corporation.

The 3Com Multichannel Architecture Communications System is registered under U.S. Patent Number 5,301,303.

Apollo is a re gistered trademar k of Apollo Computer , Incorporated. AppleTalk is a registered trademark of Apple Computer,

Incorporated. Banyan and VINES are registered trademarks of Banyan Systems

Inc. Cisco and Cisco Systems are registered trademarks of Cisco

Systems, Inc. AGS+, ASM, IGRP, Internetworking Operating System, IOS, MGS, and UniverCD are trademarks of Cisco Systems, Inc.

DECnet is a trademark of Digital Equipment Corporation. IBM is a registered trademark of International Bus iness Machines. NetBIOS is a trademark of Micro Computer Systems, Inc. NetWare and Novell are registered trademarks of Novell,

Incorporated. IPX is a trademark of Novell, Incorporated.

Restricte d Righ ts

Use, duplication, or disclosure by the Government is s ubject to restrictions as set forth in subparagraph (c)(1) (ii) of the Rights in Technical Data and Computer Software clause at DFARS 252.227-7013.

Token Ring Edge Ro uter Module Installation Guide iii

How to Use This Guide

Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv

Structure of This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xvi

Document Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii

Related Documen ts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xviii

3Com Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xix

Cisco Systems Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xx

Reference Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xx

Chapter 1 — Introduction

Product Overvi ew . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Router Module Op er ation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Router Module Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Router Module Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Software Option s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Topology Switch ing Capab ilit y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

Network Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

IOS Router Software Updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -10

Memory Upgrades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -10

Contents

Chapter 2 — Installing and Configuring the Edge Router Module

Installation Overvi ew . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Precautionary Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Troubleshooting Installati on Problems . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Quick Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Unpacking Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Verifying the Jump er Plug Po sitio ns . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Verifying Jump e r Plug Po sition s on the Engine . . . . . . . . . . . . . . . . . 2-6

Configuring the Router Module in an Unmanaged Hub . . . . . . . . . . . . . 2-7

Configuring the ONline Carrier in an Unmanaged Hub . . . . . . . . . . . 2-8

Edge Router Module Installation Guide for Token Ring v

Locating the ONline Carrier DIP Switches . . . . . . . . . . . . . . . . . . 2-8

Selecting a Backplane Network . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Setting the Ring Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Isolating the Router Module . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Installing the Router Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 -11

Installing the ONline Edge R out er Module . . . . . . . . . . . . . . . . . . . . 2-11

Installing the Edge Rout er Mo du le . . . . . . . . . . . . . . . . . . . . . . 2-11

Re-initializin g the B ac kplan e . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Installing the ONsemb l e Edge Router Mod ule . . . . . . . . . . . . . . . . . 2-13

Before You Install the ONsemble Edge Router Modul e . . . . . . . 2 -13

Installing the ONsemble Edge Router Module in a Hub Stack . . 2-14

Configuring the Router Mod ul e in a Managed Hu b . . . . . . . . . . . . . . . 2-17

Managed Configu ratio n Over view . . . . . . . . . . . . . . . . . . . . . . . . . 2-18

Attaching a Manageme n t Term inal . . . . . . . . . . . . . . . . . . . . . . . . . 2-18

Attaching a Terminal to the Console Port of the Engine . . . . . . 2-19

Attaching a Terminal to the Auxiliary Port of the Engine . . . . . . 2-20

Attaching a Terminal to the Management Module . . . . . . . . . . 2-21

Configuring the Edge Router Modul e Engine . . . . . . . . . . . . . . . . . 2 -22

Configuring the Edg e Router Module Carrier . . . . . . . . . . . . . . . . . 2-22

Configuring the ONline Carrier in a Man aged Hub . . . . . . . . . . 2-23

Configuring the ONsemble Carri er . . . . . . . . . . . . . . . . . . . . . . 2-24

Chapter 3 — Using the Edge Router Module

Showing the Router Module Configuration and Status . . . . . . . . . . . . . . 3-2

Showing the Engin e Config urati on an d Status . . . . . . . . . . . . . . . . . 3-2

Showing the Carrier Con figu ratio n and Status . . . . . . . . . . . . . . . . . 3-2

Using the SHOW MOD ULE Command . . . . . . . . . . . . . . . . . . . . 3-2

Using the SHOW PORT Co mm and . . . . . . . . . . . . . . . . . . . . . . . 3-4

Monitoring R ou ter Mo du le O peratio n . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Monitoring Engine LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Monitoring the ONsemble Carrier LED s . . . . . . . . . . . . . . . . . . . . . . . 3-8

Testing the LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Interpreting the Carrier LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Recovering a Lost Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 -22

Updating or Upgrading IOS Softw are . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24

Revising IOS Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 -25

Using Flash Load Helper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

Revising IOS Software Manu ally . . . . . . . . . . . . . . . . . . . . . . . . 3-26

vi Edge Router Module Installation Guide for Token Ring

Increasing IOS Software Memory . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27

Replacing the Flash SIMM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 -28

Replacing the Boot PROMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30

Increasing Operating Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32

Base DRAM Memory Configuration . . . . . . . . . . . . . . . . . . . . . . . . 3-33

Allocation of Operating Memory . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34

Adding DRAM SIMM Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-35

Chapter 4 — Troubleshooting

Troubleshooting Startup Problem s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Troubleshooting Engine Prob lem s . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Troubleshooting Mailbox Interfac e Probl em s . . . . . . . . . . . . . . . . . . . 4-2

Troubleshooting 3Co m Carrier Prob lem s . . . . . . . . . . . . . . . . . . . . . 4-3

Troubleshooting Netw ork C on necti vity Problems . . . . . . . . . . . . . . . . . . 4-3

Troubleshooting WAN Connec tivit y Prob lem s . . . . . . . . . . . . . . . . . . . . . 4-4

Correcting O peratin g M alfun ction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Obtaining Technical Assistan ce . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

Appendix A — Product Specifications

General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

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

Router Module Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3

Environmental Spec ific ation s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-4

Mechanical Specificatio ns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-4

Appendix B — Cabling Specifications

Console and Auxili ary Port Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Console Port Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

Console Port (DTE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

Mini-DIN to DB-25 Modem Cab le . . . . . . . . . . . . . . . . . . . . . . . . B-3

Auxiliary Port Pinou t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4

Auxiliary Port (D TE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4

Mini-DIN to DB-25 Modem Cab le . . . . . . . . . . . . . . . . . . . . . . . . B-5

3Com OpenHu b M anagem e n t Cabl e . . . . . . . . . . . . . . . . . . . . . . . . B-6

DB-25 Null Modem Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-7

Serial Port Cable Assemblies and Pinouts . . . . . . . . . . . . . . . . . . . . . . . . B-7

Edge Router Module Installation Guide for Token Ring vii

EIA-530 DTE Synchrono u s S erial Cable Pinouts . . . . . . . . . . . . . . . . . B-8

RS-232 DTE and DCE Serial Cable Assembly and Pinouts (DB-25) . . B-10 RS-449 DTE and DCE Serial Cable Assembly and Pinouts (DB-37) . . B-13 V.35 DTE and DCE Serial Cable Assembly and Pinouts (Winchester-Type

34-Pin) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-17

X.21 DTE and DCE Serial Cable Pinouts (DB-15) . . . . . . . . . . . . . . . B-21

Appendix C — Virtual Configuration Register

Virtual Configuration Register Bit Def init ion s . . . . . . . . . . . . . . . . . . . . . C-2

Boot Field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-3

Setting Boot Field Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

Default Boot Filename s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4

Break Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-6

Internet Broadcast Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-6

Engine Management Term inal Baud Rat e . . . . . . . . . . . . . . . . . . . . . C-7

Bootload Failure Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-8

NVRAM Disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-8

Changing Configuration Register Settings . . . . . . . . . . . . . . . . . . . . . . . C-8

Enabling Bootin g From Flash Mem ory . . . . . . . . . . . . . . . . . . . . . . . . . . . C-9

Appendix D — Bootstrap Program

Entering the Bootstrap Prog ram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-1

Available Bootstrap Co mm and s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2

Running Diagn ostic s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-6

Appendix E — Technical Su pport

On-line Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1

Email Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2

World Wide Web Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2

Support from Your Netw ork Supplier . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2

Support from 3Com . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-3

Returning Products fo r Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-4

Accessing the 3Com MIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-4

3Com Technical Public ation s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-5

Index

viii Edge Router Module Installation Guide for Token Ring

Figures

Figure 1-1. Typical Edge Router Module Functions . . . . . . . . . . . . . . 1-2

Figure 1-2. Edge Router Module Applicat ion in the ONline, O Nsemble, and ONcore Hubs 1-4

Figure 1-3. Network Reliability C on figu ratio n . . . . . . . . . . . . . . . . . . 1-9

Figure 2-1. Installing and Configuring the Edge Router Module . . . . 2-2

Figure 2-2. Engine Jumper Plug Loc ation s . . . . . . . . . . . . . . . . . . . . . 2-6

Figure 2-3. ONline Carrier DIP Switch Locat ion . . . . . . . . . . . . . . . . . 2-8

Figure 2-4. Inserting a Module int o an ONl ine Hub . . . . . . . . . . . . . 2-12

Figure 2-5. Typical Hub Installation . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

Figure 2-6. Connecting Power to the Edge Router Module . . . . . . . 2-15

Figure 2-7 . Reconnected StackJack Cable . . . . . . . . . . . . . . . . . . . . 2 -15

Figure 2-8. Connecting the New StackJack Cable . . . . . . . . . . . . . . 2-16

Figure 2-9. Hub ID Switch Lo catio n . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

Figure 2-10. Attaching a Terminal to the Engin e C on sole Port . . . . . 2-19

Figure 2-11. Attaching a Termin al to the Engine Auxiliary Port . . . . . 2-20

Figure 2-12. Terminal Connections to the NMM and Edge Router

Figure 3-1. Edge Router Modu le Engine LEDs . . . . . . . . . . . . . . . . . . 3-6

Figure 3-2. Edge Router Module ONsemble Carrier LEDs . . . . . . . . . . 3-8

Figure 3-3 . IOS Software Flash SIMM . . . . . . . . . . . . . . . . . . . . . . . 3 -24

Figure 3-4. Removing and R eplacing a SIMM — Flash SIMM Shown 3 -29

Figure 3-5. Boot PROM Locations . . . . . . . . . . . . . . . . . . . . . . . . . . 3 -30

Figure 3-6. DRAM Operating Memory on the Router Module Engine 3-33

Figure B-1. Mini-DIN Serial Port Pino ut s . . . . . . . . . . . . . . . . . . . . . . B-2

Figure B-2. EIA-530 Cable Assemb ly . . . . . . . . . . . . . . . . . . . . . . . . . B-8

Figure B-3 . RS-232 Serial Cable Assembly . . . . . . . . . . . . . . . . . . . . B-10

Figure B-4 . RS-449 Serial Cable Assembly . . . . . . . . . . . . . . . . . . . . B-14

Figure B-5 . V.35 Serial Cable Assembly . . . . . . . . . . . . . . . . . . . . . . B-17

Figure B-6. X.21 Cable Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . B-21

Module Console Ports . . . . . . . . . . . . . . . . . . . . . . . . 2-21

Edge Router Module Installation Guid e for Token Ring ix

Tables

Table 1-1. Software Feature Sets . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Table 1-2 . Memory Configurations. . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Table 2-1. Quick Installation Steps . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Table 2-2. Default Engine Jumper Plug Settings . . . . . . . . . . . . . . . . 2-7

Table 2-3. ONline Carrier DIP Switch Settings . . . . . . . . . . . . . . . . . . 2-9

Table 2-4. ONline Slot Assignments for Multiple Rings . . . . . . . . . . 2-10

Table 3-1. Interpreting Router Module Engine LEDs . . . . . . . . . . . . . 3-7

Table 3-2. Interpreting the Power On LED . . . . . . . . . . . . . . . . . . . 3 -10

Table 3-3. Interpreting the Primary LED . . . . . . . . . . . . . . . . . . . . . 3-11

Table 3-4. Interpreting the BUPS LED . . . . . . . . . . . . . . . . . . . . . . . 3 -12

Table 3-5. Interpreting the System LED. . . . . . . . . . . . . . . . . . . . . . 3-13

Table 3-6. Interpreting the Beacon LED . . . . . . . . . . . . . . . . . . . . . 3 -15

Table 3-7. Interpreting the Speed LED . . . . . . . . . . . . . . . . . . . . . . 3-15

Table 3-8. Interpreting Port LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Table 3-9. Interpreting Stack In and Stack Out LEDs . . . . . . . . . . . . 3-18

Table 3-10. Interpreting the Isolated LED . . . . . . . . . . . . . . . . . . . . . 3 -21

Table 3-1 1. Memory Allo catio n . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34

Table 4-1. Troubleshooting Malfunctions . . . . . . . . . . . . . . . . . . . . . 4-5

Table B-1. Co nsol e Po rt Pinout Fu nc tio n s (DT E ) . . . . . . . . . . . . . . . . B-3

Table B-2. 3Com Op enHu b M anagem e n t Cabl e Pinout s. . . . . . . . . . B-3

Table B-3. Auxiliary Port Pinout Functions (DTE) . . . . . . . . . . . . . . . . B-5

Table B-4. 3Com Op enHu b M anagem e n t Cabl e Pinout s. . . . . . . . . . B-6

Table B-5. EIA-530 DTE Cable Pinouts (DB-60 to DB-25). . . . . . . . . . B-8

Table B-6. RS-232 DTE Cable Pinouts (DB-60 to DB-25) . . . . . . . . . B-11

Table B-7. RS-232 DCE Cable Pinouts (DB-60 to DB-25) . . . . . . . . . B-12

Table B-8. RS-449 DTE Cable Pinouts (DB-60 to DB-37) . . . . . . . . . B-14

Table B-9. RS-449 DCE Cable Pinouts (DB-60 to DB-37) . . . . . . . . . B-16

Table B-10. V.35 D TE C able Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . B -18

Table B-11. V.35 D CE Cab le Pinout s. . . . . . . . . . . . . . . . . . . . . . . . . B -19

Table B-12. X.21 D TE C able Pinouts (DB -60 to DB-1 5) . . . . . . . . . . . B-22

Table B-13. X.2 1 DCE Cab l e Pinout s (DB- 60 to DB-15). . . . . . . . . . . B-23

Table C-1. Virtual Configur at ion Regist er Bit Values . . . . . . . . . . . . . C-2

Edge Router Module Installation Guid e for Token Ring xi

Table C-2. Boot Field Values (Configuration Register Bits 00 to 03). . C-3

Table C-3. Default Boot Filename s . . . . . . . . . . . . . . . . . . . . . . . . . . C-5

Table C-4. Broadcast Address Destination Settings . . . . . . . . . . . . . .C-7

Table C-5. Engine Managem e nt Terminal Baud Rate Settings . . . . . .C-7

Table D-1. Command Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-5

xii Edge Router Module Installatio n Guide for Token Ring

How to Use This Guide

This guide describes how to install and use the 3Com® Edge Router Module in the following 3Com products:

This guide also provides troubleshooting suggestions in case a problem arises with the module.

Audience

This guide is intended for the following trained service personnel at your site:

❑ ONline ❑ ONsemble ❑ ONcore

❑ Network manager or administrator ❑ Hardware installer

™

System Concentrator

™

Hubs

Switching Hub

Edge Router Module Installation Guide for Token Ring xiii

Structure of This Guide

This guide contains the following chap ters: Chapter 1, Introduc tion – Pr ovides an introduction to the Edge Router

Module.

Chapter 2, Install i ng a nd Configuring the Edge Router Module –

Explains how to configure and install the module in each of the 3Com hub products.

Chapter 3, Using the Edge Router Module – Explains how to perform basic tasks that are helpful when using the router module.

Chapter 4, T roubl eshooting – Provides troubleshooting information to correct problems that arise during installation and operation.

Appendix A, Product Specifications – Contains general product specifications for the Edge Router Module .

Appendix B, Cabli ng Specifications – Contains cabling specifications for the Edge R outer Module .

Appendix C, Virtual Configuration Register – Describes the router module engine vir tual configuration register and provides procedures for modifying t he virtual configuration register settings.

Appendix D, Bootstrap Program – Summariz es th e router module engine bootstrap diagnostic tests and command options.

Appendix E, Technical Support – Lists the various methods for contacting the 3Com technical support organization and for accessing other product support services.

Index

xiv Edge Router Module Installation Guide for Token Ring

Document Conventions

The following document conventions are used in this guide:

Convention Indicates Example

Courier text User input In the Agent Information

System output After pressing the Apply

Form, enter MIS in the New Contact field.

button, the system displays the message Transmitting data.

Bold command string

Text in angled brackets Italic text in braces

Italics Text emphasis,

Path names Before you begin, read the

User-substituted identifiers

document titles

readme.txt file located in /usr/snm/agents.

In the command above, substitute <rem_name> with the name of the remote machine.Use the following command to show port details:

SHOW PORT {

Ensure that you press the Apply button after you add the new search parameters.

slot.all

} VERBOSE

Edge Router Module Installation Guide for Token Ring xv

Convention Indicates Example

Note: A Note. The

Caution: A Caution. A

Warning: A Warning. A

Product Overview

The Edge Router Module (router module) is a serial port-to-token ring LAN interconnect module jointly developed by 3Com Corporation and Cisco Systems, Inc.

This section provides information on the following topics:

❑ Router Module Operation ❑ Router Module Architecture

Introduction 1 - 1

Router Module Operation

The router module (Figure 1-1) is designed to:

❑ Connect corporate networks and increase wide area connectivity . ❑ Support both synchronous and asynchronous routing over serial links

using one local area network (LAN) and up to three wide area network (WAN) connectio n s .

❑ Provide flexible networking connections in multiprotocol

environments.

❑ Sit at the network’s logical and physical edge, either at a remote site

or central facility.

Edge Router Module

Console Port

Auxiliary Port

Network Backplane

High Speed WAN Port

Figure 1-1. Typical Edge Router Module Functions

1 - 2 Edge R outer Module Installation Guide for Token Ring

Token Ring LAN

The router module runs Cisco standard software and fully interoperates with the:

❑ 3Com ONline Ethernet Router Module ❑ Cisco local and remote router servers, such as the AGS+, MGS ,

and the Cisco 3000, 4000, 4500, and 7000 series.

Router Module Archi tecture

Each router module consists of two compo nents:

❑ Engine Module - Provides Token Ring-to-WAN port connections. ❑ Carrier Module - Provides connections to one of three 3Com

switching hub products.

The engine mounts to one of three carrier types to form an Edge Router Module for th e ONline, ONsemble



, or ONcore hub products.

The architecture of each Edge Router Module type is illustrated in Figure 1-2.

Introduction 1 - 3

Edge Router Module

Engine

Edge Router Module

Engine

ONline

System Concentrator

ONline Carrier

ONcore

Switching Hub

ONcore Carrier

ONsemble Carrier

Edge Router Module

Engine

Figure 1-2. Edge Router Module Application in the ONline,

ONsemble, and ONcore Hubs

1 - 4 Edge R outer Module Installation Guide for Token Ring

ONsemble

StackSystem H u b

Router Module Features

This section describes the major features of the router module , including:

❑ Softwa re O ptions ❑ Topology Switching Capability ❑ Network Reliability ❑ IOS Router Software Updates ❑ Memory Upgrades

Software Options

The router module provides a choice of four software feature sets:

❑ IP/IPX ❑ Desktop ❑ Desktop plus IBM ❑ Enterprise

Introduction 1 - 5

Feature

Topology Switching Capability

The router module provides to pology switching capability. Topology switching is the ability to switch the router module between token rin g networks (rings) on the hub backplane using:

❑ Network management module commands ❑ Simple Network Manag ement Protocol (SNMP)

You do not have to swap cables or move the router module to move the routing or brid ging function s to a different network within the hub. You can enter a command throu gh one of the 3Com management modules and the network change is made automatically.

Network Reliability

The router module provides the capability to implement several levels of reliability in your network:

❑ By configuring the router module’s WAN and auxiliary ports in

parallel, you can create up to three redundant serial links to protect your mission-critical applications.

❑ You can config ure up to two backup links to ensure that your

applications are available if the primary link fails.

An example of the router module configured to provide reliability is shown in Figure 1-3. These serial links can also support load-balancing to augment the performance of y our network.

1 - 8 Edge R outer Module Installation Guide for Token Ring

Token Ring

Edge Router Module

Remote Site

Main Site

Console Port

WAN Port

Primary Link

Main Site Network Connections

Secondary

Link

Main Site Router

Aux Port

WAN Port

Dial-Up Link

Public

Switched

Telephone

Network

Figure 1-3. Network Reliability Configuration

Introduction 1 - 9

IOS Router Software Updates

The IOS software in the router module engine can be updated by purchasing field-upgradable software distribution kits. Update your module to the latest 3Com release of IOS software by downloading new code to flash memory on the module. New updates are shipped automatically as part of the 3Com 1-year Router Software Subscription Service or you can purchase it from 3Com as a single unit update.

You can also purchase an upgrade kit to upgrade your IP/IPX, Desktop, or Desktop plus IBM

Contact your 3Com reseller or 3Com Customer Support for more information and part numbers.

Memory Upgrades

The router module provides the capability to increase memory to meet the requirements of large routing table configurations.

Memory is configured on the router module to match the requirements of the selected IOS software feature set. Table 1-2 lists the base memory configurations for each softw are feature set.

Table 1-2. Memory Configurations

Memory

Type

IP/IPX Desktop



software to a version with an enhanced feature set.

Feature Set

Desktop

plus

IBM

Enterprise

IOS (Flash EPROM)

Data (DRAM) 4 MB (expandable to 16 MB) 6 MB (expandable to 18 MB)

1 - 10 Ed ge Router Module Instal lation Guide for Token Ring

4 MB (expandable to 8 MB)

8 MB

Installing and Configuring the Edge Router Module

This chapter contains the following sections:

❑ Installation Overview ❑ Precautionary Procedures ❑ Quick Installation ❑ Unpacking Procedures ❑ Verifying Jumper Plug Positions ❑ Configuring the Router Module in an Unmanaged Hu b ❑ Installing the Router Module ❑ Configuring the Router Module in a Managed Hub

Note: The information and procedures presented in this chapter

are to be used only by trained servic e person nel to install and maintain all models of the Edge Router Module.

Installing and C onfiguring the Edge Router Module 2 - 1

Installation Overview

The flowchart in Figure 2-1 identifies the steps that are required to install the router module in a managed hub and in an unmanaged hub.

Read Precautionary

Procedures

(page 2-3 )

Install the Module

(page 2-11)

Configure the Engine

Using Cisco Commands

(page 2-22)

Configure the Carrier

Using NMM Commands

(page 2-22)

Experienced

Installer?

Unpack the Module

(page 2-5)

Verify Jumper Plug

Positions

(page 2-6)

Yes No

Managed

Hub?

Yes

Go to Quick Installation

(page 2-4)

Configure the Carrier

Using DIP Switches

(page 2-7)

Install the Module

(page 2-11)

Configure the Engin e

Using Cisco Commands

(page 2-22)

Installation Complete

Figure 2-1. Installing and Configuring the Edge Router Module

2 - 2 Edge R outer Module Installation Guide for Token Ring

Precautionary Procedures

Electrostatic discharge (ESD) can damage static-sensitive devices on circuit boards. Follow these precautions when you handle the ONline or ONcore router modules:

Caution: Do not remove the product from any antistatic

wrapping until you are ready to inspect or install it.

Caution: Handle the product by the faceplate only.

Use proper grounding techniques whenever you handle the router module:

❑ Using a foot strap and grounded mat or wearing a grounded static

discharge wrist stra p .

❑ Touching the grounded rack or other source of ground just before

you handle the product.

Troubleshoot ing Installation Problems

If you encounter problems when you attempt to install and configure the Edge Router Module, refer to the troubleshooting techniques in Chapter 4.

Installing and C onfiguring the Edge Router Module 2 - 3

Quick Install atio n

Table 2-1 outlines the steps necessary to complete the installation of the Edge Router Module. If you are already familiar with the procedures required to install a router module in your 3Com hub type, use this table as a checklist. Otherwise, use the procedures specified in the remainder of this chapter to install th e router module.

Table 2-1. Quick Installation Steps

Step Proce dure Refer to:

1 Unpack the module. Unpacking Procedures 2 V erify jumper plug positions on the carrier and

engine.

3 Configure the carrier for operation in an

unmanaged hub (if necessary) using DIP switch settings. If you have a network management module installed in the hub, go to step 4.

4 Insert the module into an open slot in the hub, or,

for the ONsemble Edge Router Module, connect the StackJack cables between ONsemble hubs.

5 Attach a manageme nt terminal to the console

port on the router module.

6 Configure the engine using Cisco Systems setup

command.

7 Configure the carrier using network management

module commands.

8 Attach WA N cables to the 60-pin universal W AN

connectors on the front panel.

Configuring the Router Module in a n Unmanaged Hub

Configuring the Carrier in an Unmanaged Hub

Installing the ONline Edge Router Mo dule (or equivalent section for your hub type)

Configuring the Router Module in a n Unmanaged Hub

Cisco Systems Getting

Started Guide

Configuring the Carrier in a Managed Hub

Connecting WAN Cables

2 - 4 Edge R outer Module Installation Guide for Token Ring

Unpacking Procedures

To unpack the Edge Router Module:

1. Verify that the module is the model you ordered by ch ecking the model number listed on the side of the shipping carton.

Note that the product model number printed on the shipping box differs from the model number on the product. The model number on the shipping box contains the prefix ‘3C9’.

2. Remove the module, in its antistatic bag, from the shipping carton.

3. Remove the module from the antistatic shielding bag and inspect it for damage.

Always handle the module by the faceplate, being careful not to touch the components. If the module appears to be damaged, return it to the antistatic shielding bag, repack it in the shipping carton, and contact your local supplier.

4. V erify that the contents of the shipment are complete. The shipment contents are listed below:

❑ Edge Router Mod ule (may be fully assembled or shipp e d as

separate carrier and engine)

❑ Edge Router M odule Installation Guide ❑ Release Notes for the Edge Router Module

5. Store the shipping cartons and antistatic wrapping so that you can repackage the product for storage or shipment.

Installing and C onfiguring the Edge Router Module 2 - 5

Verifyin g the Jumper Plug Positi ons

Verify the jumper plug positions of the router module engine before proceeding with the installation procedure.

The Edge Router Module is equipped with several jumper plugs. The jumpers are factory-set to the appropriate settings. Do not modify the jumper settings, except to restore the settings to the required positions.

Caution: If you modify any of th e factory-set jumper positions,

the router module may not operate properly.

Verifying Jumper Plug Positions on the Engine

Figure 2-2 shows the jumper plug locations on the router module engine.

J10

J11

J10 J9

J11

Figure 2-2. Engine Jumper Plug Locations

2 - 6 Edge R outer Module Installation Guide for Token Ring

Table 2-2 lists the default positions of the jumper plugs on the engine. Verify the jumper plug positions specified in Table 2-2.

Table 2-2. Default Engine Jumper Plug Settings

Jumper Jumper Plug Position

J1 Removed J3 Installed J4 Removed J8 Installed J9 Removed J10 Installed J11 Removed P1 Block As shown

Configuring the Router Module in an Unmanaged Hub

If you use a network management module to manage your hub, go to the next section, Installing the Router Module.

If you do not use a network manageme nt module to manage your hub, configure the router mod ule by completing each of the following tasks:

❑ Configurin g the carrier by setting DIP switches. ❑ Configuring the engine using Cisco Systems commands (refer to the

section Configuring the Edge Router Module Engine on page 2-22).

Installing and C onfiguring the Edge Router Module 2 - 7

Configuring the ONline Carrier in an Unmanaged Hub

This section includes the following sections:

❑ Locating the ONline Carrier DIP Switches ❑ Selecting a Backplane Network ❑ Setting the Ring Speed ❑ Isolating the Router Module

Locating the ONline Carrier DIP Switches

Figure 2-3 shows the location and default positions of the ONline Carrier DIP switches.

ONOFF

Single/Multiple Rings

Ring Speed

Backplane Enable

1 2 3 4 5 6 7 8

Figure 2-3. ONline Carrier DIP Switch Location

2 - 8 Edge R outer Module Installation Guide for Token Ring

Table 2-3 defines the function of each ONline Carrier DI P switch.

Table 2-3. ONline Carrier DIP Switch Settings

Switch Setting

Factory

Switch Function

Default

On Off

Backplane Network

Single/Multiple Rings

Single Ring

Multiple

Rings 2 Ring Spee d 16 Mbps 4 Mbps 16 Mbps 3 Backplane Enable Enable Enable Disable 4 to 8 Reserved – Do Not

Off N/A N/A

Change

Configure the ONline Carrier DIP switches acc ording to the guidelines provided in the foll owing sections.

Selecting a Backplane Network

T o connect the router module to a specific backplane network ring, use DIP switch 1. In an unmanaged hub, you can connect the router module to one network ring t hat includes all slots in the hub (Single Ring) or to one of three network rings (Multiple Rings).

Set DIP switch 1, Single/Multiple Rings, as follows:

❑ Single Ring (Dip Switch 1 ON) – When all modules in an

unmanaged hub are set to Single Ring, the hub slots form a single backplane ring. Insert the router module in any available slot to connect to the ring.

❑ Multiple Rings (Dip Switch 1 OFF) – When all modules in an

unmanaged hub are set to Multiple Rings, the hub slots are grouped into three separate rings, as shown in Table 2-4.

Installing and C onfiguring the Edge Router Module 2 - 9

Table 2-4. ONline Slot Assignments for Multiple Rings

Slot Assignments

Ring Number

17-Slot Hub 6-Slot Hub

1 Slots 1, 2, and 3 Slots 1, 2, and 3 2 Slots 4 through 9 Slots 4, 5, and 6 3 Slots 10 through 15

a. Slots 16 and 17 are not assigned to a backplane ring in unmanaged hubs.

N/A

In a 17-slot hub, for example, to connect the router modu le to backplane ring 1, install the module in slots 1, 2, or 3. T o connect the router module to backplane ring 2, install the module in any slot from 4 through 9.

If the router module is installed in the hub after powerup, you must re-initialize the hub backplane before the router module can join the ring. T o re-initialize the backplane, press the LED Test switch three times in rapid su ccession.

Caution: Set DIP switch 1 on all Edge Router Modules in the hub

to the same setting. Otherwise, unpredictable results may occur.

Setting the Ring Speed

To set the token ring speed for the carrier, use DIP switch 2. Be sure to set the carrier ring speed to m at ch that of the router module engine and all other modules attach ed to th e same b ac kplane ring.

T o set the carrier ring speed, position DIP switch 2 as described in T able 2-3.

2 - 10 Ed ge Router Module Instal lation Guide for Token Ring

Isolating the Router Module

T o isolate the router module from the backplane network ring to which it is connected, use DIP switch 3.

To isolate the router module, set DIP switch 3 to Off. To connect the router module to the s elected backplane network ring, set DIP switch 3 to On.

Installing the Router Module

This section provides procedures for installing the router module into a hub or stack, including:

❑ Installing the ONline Edge Ro uter Module ❑ Installing the ONsemble Edge Rou ter Module

Installing the ONlin e Edge Router Module

This section describes how to install the Edge Router Module in a 3Com ONline System Concentrator. It contain s the following sections:

❑ Installing the Router Module ❑ Re-initializing the Backplane

You can also install the ONline Edge Router Module into an ONcore hub. For information on installing ONline modules into the ONcore hub, refer to the ONcore Switching Hub Installation and Operation Guide (Document Number 17-00362).

Installing the Edge Router Modu le

Note: You do not need to power dow n the hub to install or

remove the module. You can insert the module while the hub is operating (this is called a hot swap).

Installing and Configuring the Edge Router Module 2 - 11

To install the module:

1. Properly ground yourself prior to handling the router module. For example, wear a static wrist guard or touch a grounded static mat prior to handling the module.

2. Locate an open slot in the hub. If necessary , remove a blank panel on the hub to expose a slot.

3. Insert the router module into the board guides at the top and bottom of the slot and slide it into the hub by pressing firmly at the top and bottom of the faceplate. Make sure the connectors are well-seated into the backplane of the hub. Using your fingers, tighten the screws on the front of the router module faceplate (Figure 2-4 ).

Figure 2-4. Inserting a Module into an ONline Hub

Re-initializing the Backplane

If you insert the router module into an unmanaged concentrator, the new module cannot communicate with other modules in the concentrator until you re-initialize the backplane.

To re-initialize the backplane , press the LED check button on the ONline Controller Module three times rapidly . A clicking sound indicates that the backplane is being re-initialized.

2 - 12 Ed ge Router Module Instal lation Guide for Token Ring

Note: If the engine module does no t connect to the backplane

network ring when you insert the router module, ensure that both the engine and the carrier are set to the ring speed of the backplane network ring.

Installing the ONsemb le Edge Router Modu le

This section describes how to install th e router module in an ONsemble StackSystem

❑ Before You Inst all the ONsemble Edge Router Modul e ❑ Installing the Edge Router Module in t he ONsemble Hub Stack

™

Token Ring hub stack. It contains the following sections:

Before You Install the ONsemble Edge Router Module

This section provides information you need to know before you install the ONsemble Edge Router Module.

❑ ONsemble Overview — If you are not familiar with the ONsemble

StackSystem Token Ring Hub, review the ONsem ble StackSystem T oken Ring Hub Installation and Operation Guide for information on the following topics:

™

– 3Com StackJack – Hub IDs

❑ ONsem ble Power Requi rement s — Make sure the circuit you plan

to use can supply adequate power . Maximum power consumption by the Edge Router Module is approximately 75 Watts.

Cabling

❑ ONsemble Hub Stacks Rules — A hub stack must comply with the

following rules: – A stack mounted on a tabletop or in an equipment rack

can contain up to 8 hubs (the Edge Router Module counts as 1 hub).

Installing and Configuring the Edge Router Module 2 - 13

Caution: If you stack hubs on the floor , regulatory agency safety

requir ements limit the stack size to 6 hubs.

– The maximum length for all StackJack cables combined

is 80 meters.

Installing the ONsemble Edge Router Module in a Hub Stack

This section describes how to add the Edge Router Module to a hub stack. To add the router module hub to a hub stack:

1. Select a stack position for the router m odule hub. To preserve the existing hub ID assignments, add the router module

hub to the top of the hub stack (assuming the management hub is located on the bottom).

In typical installations, the hub at the top of the stack has the highest hub ID. Figure 2-5 shows a typical installation.

ONsemble Edge Router Module

Hub IDs

Figure 2-5. Typical Hub Installation

2. Position the router module in the hub stack.

3. Connect power to the router module (Figure 2-6).

2 - 14 Ed ge Router Module Instal lation Guide for Token Ring

Hub with Highest Hub ID Prior to Addition of the Edge Router Module

Management Hub

Figure 2-6. Connecting Power to the Edge Router Module

4. Disconnect the StackJack cable from the StackJack Out connector on the hub next to the router module.

5. Reconnect the StackJack cable to the StackJack Out connector on the router module (Figure 2-7) .

ONsemble Edge Router Module

Reconnected StackJack Cable

Figure 2-7. Reconnected StackJack Cable

6. Connect one end of the StackJack cable that shipped with the router module to the StackJack In connector o n the router module.

7. Connect the other end of the new StackJack cable to the StackJack Out connector on the hub next to the router module (Figure 2-8).

Installing and Configuring the Edge Router Module 2 - 15

ONsemble Edge Router Module

New StackJack Cable

Figure 2-8. Connecting the New StackJa ck Cable

8. Check LEDs to verify proper operation. The Stack In and Out LEDs on the router module:

❑ Light solid yellow until the management hub establishes contact

with the router module.

❑ Light solid green to indicate proper operation.

9. If desired, change the hub ID. The management hub should automatically assign the router module

the lowest unu sed hub ID. To change the hub ID, use a thin, blunt object to press the recessed

Hub ID switch on the router modu le front panel (Figure 2-9). Each time you press the switch, the hub ID displays the letter C and

then increases by one. When the hub ID is 8, pressing the switch changes the hub ID to 0.

Note: Hub ID 0 is not a valid hub ID and hub ID 1 is typically used

as the ID for the ONsemble management hub. If you change the hub ID , change it to an unused value from 2 to 8.

2 - 16 Ed ge Router Module Instal lation Guide for Token Ring

Hub ID Switch

Figure 2-9. Hub ID Switch Location

You can also use the SET HUB management command to change hub IDs. For details, refer to the ONsemble StackSystem Token Ring Hub Management Guide.

Configurin g the Router M od ule i n a Manag ed Hub

Use the procedures in this section to configure the Edge Router Module in a managed hub. Thi s secti on includes the following topics:

❑ Managed Configuration Overview ❑ Attaching a Manag em ent Term inal ❑ Configuring the Edge Router Module Engine ❑ Configuring the Edge Router Module Carrier

Installing and Configuring the Edge Router Module 2 - 17

Managed Configuration Overview

A managed configuration is one in which a network management module is installed. Use the following procedure to configure the router module in a managed configuration:

1. Attach a management terminal to the engine consol e or auxiliary port and attach a management terminal to the hub management module console port.

2. Use the terminal to configure the engine usin g Cisco Systems commands.

3. Use the terminal to configure the carrier using 3 Com network management module commands.

Note: Be sure to set the ring speed of both the engine and the

carrier to match the rin g speed of the network ring to which the router module will be connected.

Attaching a Management Terminal

Use a terminal (or workstation running a terminal emulation program) to configure both the router module engine and the router module carrier:

❑ Engine — Attach the terminal to the console or auxiliary port on the

engine.

❑ Carrier — Attach the terminal to the console port on the network

management module for the hub.

Note: You can also TELNE T to the m anagement modu le hub.

Refer to the documentation for your management module for information.

2 - 18 Ed ge Router Module Instal lation Guide for Token Ring

Attaching a Terminal to the Console Port of the Engine

Attach a terminal to the Edge Router Module console port to configure or modify the engin e para me ters .

To attach a termin al t o the console port:

1. Insert the mini-DIN end of the 3Com OpenHub Managem ent Modem Adapter Cable into the circular Console connector on the router module.

2. Attach one end of the RS-232 null modem cable to a COM (communications) port on your terminal. Attach the other end to the DB-25 end of the OpenHub Management Mod em Adapter cable.

Figure 2-10 illustrates the cable connection to the router module console port in an ONline hub.

Mini-DIN Connector

DB-25 Connector

To Termi nal COM Port

3Com OpenHub

ONline System

Management Modem Adapter Cable

Null Modem Cable

Figure 2-10. Attaching a Terminal to the Engine Console Port

Installing and Configuring the Edge Router Module 2 - 19

Attaching a Terminal to the Auxiliary Port of the Engine

Attach a terminal to the Edge Router Module auxiliary port to configure or modify the engin e para me ters .

To attach a termin al t o the auxiliary port:

1. Insert the mini-DIN end of the 3Com OpenHub Management Modem Adapter Cable into the circular Auxiliary c onnector on the router module.

2. Attach the DB-25 end of the modem adapter cable to an RS-2 32 modem cable coming from a COM port on your terminal.

Figure 2-11 illustrates the cable connection to the router module auxiliary port in an ONline hub.

Mini-DIN Connector

DB-25 Connector

To Terminal COM Port

3Com OpenHub

ONline System

Management Modem Adapter Cable

Figure 2-11. Attaching a Terminal to the Engine Auxiliary Port

2 - 20 Ed ge Router Module Instal lation Guide for Token Ring

Null Modem Cable

Attaching a Terminal to the Management Module

Attach a terminal to the console port on the network management module to configure or mo dify carrier parameters for t he Edge Router Module.

Note: Y ou can use one terminal for connections to both the Edge

Router Module and to the network management module.

To connect the terminal to the network m an agement module (NMM):

1. Attach one end of an RS-232 null modem cable to the console port of the NMM.

2. Attach the other end of the null modem cable to a COM port on your terminal. Figure 2-12 shows the terminal con nections to both the NMM and the Edge Router Module consoles.

Figure 2-12. Terminal Connections to the NMM and Edge Router

Module Console Ports

Installing and Configuring the Edge Router Module 2 - 21

Configuring the Edge Router Module Engine

Use the management terminal to configure the router module engine using Cisco Systems 2500-series router command s.

For procedures to configure your router module engine, refer to one of the following sources:

❑ If you have hardcopy versions of the Cisco Systems

set, refer to the Getting Started Guide and the Rout e r Products Configuration Guide for your software version on the Cisco Systems

UniverCD™ CD-ROM disk.

❑ If you do not have hardcopy versions of the Cisco Systems

documentation set, refer to the Getting Started Guide and the Router Products Configuration Guide for your software version on

the Cisco Systems UniverCD CD -ROM disk.

Note: Be sure to set the ring speed of the engine to match that of

the carrier before proceeding with the installation.

Configuring the Edge Router Module Carrier

3Com network management modules (NMMs) provide network management and configuration capabilities for 3Com hub-based products, including the Edge Router Module carrier.

Note: If you have not attached a terminal for network

management, refer to the section Attaching a Management Terminal on page 2-18.

documentation

This section provides procedures for configuring the carrier of the following hub types:

❑ ONline ❑ ONsemble

2 - 22 Ed ge Router Module Instal lation Guide for Token Ring

Configuring the ONline Carrier in a Managed Hub

To configure an ONline carrier:

1. Set the Token Ring Speed Set the ring speed of the carrier to match the ring speed of the router

module engine and the backplane token ring network to which it will be connected.

The default ring speed for the both the carrier and the engine is 16 Mbps. If the ring speed of either the carrier or the engine does not match the ring speed of the netw ork to which it is connected, the router module is automatically isolated from the network.

Set ring speed for the carrier by issuing the following NMM command:

ONline> set mo du le {slot} ring_speed {4MBPS} {16MBPS}

2. Select a Network Ring Assign the Edge Router Modules backplane port to one of the

followin g connections:

❑ One of seven backp lane token ring networks ❑ Isolated mode

Refer to the ONline System Concentrator Installation and Operation Guide, Chapter 1, for an ONline backplane a rchitecture description.

Assign the carrier to a network ring by issuing the following NMM command:

ONline> set mo du le {slot} network {token_ring_1..._7} {isolated}

Note: You may see a message o n the engine management

console indicating a momentary “Wire Fault” condition on the token ring port. This is a normal condition that occurs when you switch the router module bet ween backplane rings or in and ou t of isolated mode.

Installing and Configuring the Edge Router Module 2 - 23

3. Save the Carrier Configuration Save the carrier configuration to preserve any ch anges you have

made. Save the carrier configuration by issuing the following N MM

command:

ONline> save all

Note: Failure to save carrier settings may result in loss of

configuration data.

For detailed information on configuring the ONline Carrier, refer to the ONline Token Ring Carrier Assembly and Configuration Guide or contact your local 3Com reseller.

Configuring the ONsemble Carrier

To configure an ONsemble carrier.

1. Set Token Ring Speed Set the ring speed of the carrier to match that of the router module

engine and all other stations on the ring. If you installed the carrier in a hub stack that is running at a different ring speed, or if you have not set the carrier ring speed to match that of the engine, the router module is automatically isolated from the stack. The default ring speed for the carrier is 16 Mbps.

If necessary , use the following procedure to change the ring speed of the ONsemble carrier:

a. Use the SET PORT MODE command to d isable all ports on the

carrier. For example:

ONsemble> set port 4.all mode disable Port 04.01 set to DISABLED. Port 04.02 set to DISABLED.

2 - 24 Ed ge Router Module Instal lation Guide for Token Ring

b. Use the SET TRUNK MODE command to disable the StackJack

trunks on the carrier. For example:

ONsemble> set trunk 4 stackjack_in mode disable Trunk 04 stackjack_in set to DISABLED. prompt> set trunk 4 stackjack_out mode disable Trunk 04 stackjack_out set to DISABLED.

c. Use the SET HUB NETWORK command to assign th e carrier

network to token_ring_1. For example:

ONsemble> set hub 4 network token_ring_1 Hub 4 network id set to TOKEN_RING_1.

d. Enter the SET HUB RING_SPEED command. For ex am ple:

ONsemble> set hub 4 ri ng _sp eed 4mbp s Ring Speed set to 4 MBPS.

e. E nable all ports on the carrier. For example:

ONsemble> set port 4.all mode enable Port 04.01 set to ENABLED. Port 04.02 set to ENABLED.

f. Enable StackJack trunks on the carrier. For example:

ONsemble> set trunk 4 stackjack_in mode enable Trunk 04 stackjack_in set to ENABLED. prompt> set trunk 4 stackjack_out mode enable Trunk 04 stackjack_out set to ENABLED.

2. Set the Network Connection. By default, the ONsemble Carrier is assigned to token_ring_1. You can assign the carrier to one of two netwo rk connections:

❑ token_ring_1 – All hubs within a stack assigned to the

token_ring_1 network are on the same ring and co mmun icate with each other through their StackJack connections. You can also extend token_ring_1 to other hub stacks by using a ring-in/ring-out device such as the ONsemble Token Ring Fiber Ring-In /Ring-Out Module.

Installing and Configuring the Edge Router Module 2 - 25

❑ isolated – A hub assigned to the isolated network does not

communicate with other hubs through the StackJack connections. However, the management hub can still manage the hub through the separate StackJack management data path.

Change the network connection of the ONsemble carrier by issuing the SET HUB N ETWORK command, as in the following example:

ONsemble> set hub 4 network isolated Hub 4 network id set to ISOLATED.

Note: You may see a message o n the engine management

3. Save the Carrier Configuration To preserve any changes you made , issue the following command:

ONsemble> save all

Note: Failure to save carrier settings may result in loss of

configuration data.

For detailed information on configuring the ONsemble Carrier , r efer to the ONsemble Token Ring Carrier Assembly and Configuration Guide or contact your local 3Com reseller.

2 - 26 Ed ge Router Module Instal lation Guide for Token Ring

Using the Edge Router Module

This chapter provides procedures for tasks you may need to perform while using the Edge Router Module.

Note: For engine-related troubleshooting information, refer to the

appropriate Cisco Systems manual.

This chapter contains the following sections:

❑ Showing t he Router Module Configuration and Status ❑ Monitoring Router Module Operation ❑ Recovering a Lost Password ❑ Updating or U pgrading IOS Software ❑ Increasing Operating Memory

Note: The information and procedures presented in this chapter

are to be used only by trained servic e person nel to install and maintain all models of the Edge Router Module.

Using the Edge Router Module 3 - 1

Showing the Router Module Configuration and Status

This section includes the following topics:

❑ Showing t he Engine Configuration and Status ❑ Showing the Carrier Configuration and Status

Showing the Engine Configuration and Status

To monitor th e configuration and status of the Edge Ro uter Module engine, use Cisco Systems 2500-series router commands. Refer to the Cisco Systems UniverCD CD -ROM disk or to the Cisco Systems Getting Started Guide for information.

Showing the Carrier Configuration and Status

To show carrier configuration and status, use the following comm ands:

❑ SHOW MODULE ❑ SHOW PORT

Using the SHOW MODULE Command

The SHOW MODULE command displays information about a particular carrier.

The syntax of the SHOW MO D UL E command is:

SHOW MODULE {slot} {verbose}

{no_verbose}

3 - 2 Edge R outer Module Installation Guide for Token Ring

The following command displays example information on the carrier installed in slot 6:

ONline> sh ow mo dul e 6 v er bos e Slot Mod ul e V er sio n Net wo rk G en era l Inf or matio n

---- --- -- --- -- --- --- - -- --- - --- -- -- --- -- - - -- --- -- --- -- ----- 06 520 1M -SD EK v 1. 00 TOK EN _R ING _1 2 20 3R- CS E

5201M-SD EK : O Nl ine Toke n Rin g Car ri er En gi ne: 2 203 R- CSE Edg e Rtr E ntr SW Ring Spe ed : 16 MB PS

Network St atu s: OK AY Boot Ver si on: v1 .00 Module C ap abi li tie s: MA CCF G; IPC FG ; No. Fron t Pan el Po rts: 2 Native S of twa re Ve rsion : v1 0.0 3 Native B oo t S of twa re Vers ion : v4 .14

No_Verbose is the default option for the SHOW MODULE command. Use the No_Verbose option to display summary information for the carrier . The following command displays example summary information on the carrier installed in slot 6:

ONline> s how m odu le 6 Slot Mo du le Ve rsi on N etw or k Ge ner al In forma ti on

---- -- -- --- -- --- ---- -- --- -- - --- -- --- -- -- -- --- -- --- ----- -- - 06 52 01 M-S DE K v1 .00 T OKE N_ RIN G_ 1 22 03R -C SE

Using the Edge Router Module 3 - 3

Using the SHOW PORT Command

ONline > show port 6.1 Port D isp la y f or Modu le 52 01M -S DE K: Port Mod e S tatus N et wor k Gen er al In for ma tio n

----- --- -- --- - ----- --- -- --- -- -- - - -- --- -- --- - --- -- ----- --- -- --- -- --

06.01 LOG IC AL O KAY T OK EN_ RI NG_ 1 Bac kp lane

The SHOW PORT command displays information on a single port or all ports.

The syntax for the SHOW PORT command is:

SHOW PORT {slot.port} {verbose}

{no_verbose}

The following command displays example informatio n for port 1 on the carrier installed in slot 6:

ONline > show port 6.1 verbose Port D isp la y f or Modu le 52 01M -S DEK : Port Mod e S tatus N et wor k Gen er al In for ma tio n

----- --- -- --- - ----- --- -- --- -- --- - -- --- -- --- - --- -- ----- --- -- --- -- --

06.01 LOG IC AL O KAY T OK EN_ RI NG_ 1 Bac kp lane Port C onn ec tor : B AC KPL AN E

IP Add res s: 1 51 .10 4. 30. 50 Statio n A dd res s: 0 0- 00- 30 -05 -0 0-0 8 Capabi lit ie s: - NO NE-

No_Verbose is the default option for the SHOW PORT command. Use the No_Verbose option to display summary info rmation for the carrier ports. The following command displays example summary information for port 1 on the carrier installed in slot 6:

3 - 4 Edge R outer Module Installation Guide for Token Ring

Monitoring Ro u ter Mo dul e Op eratio n

This section provides information on the following topics:

❑ Monitoring the Engine LEDs ❑ Monitoring the ONsemble Carrier LEDs

Note: ONline and ONcore carriers are not equipped with LEDs.

Monitoring Engine LEDs

The LEDs on the front panel of the Edge Router Module engine allow you to monitor the status of the module and ports. The following LED status changes occur when you install the Edge Router Module in the hub:

1. The Router Status (RTR) LED is off if the router is booting (initializing).

2. The Router Status (RTR) LED illuminates once the router boot software is running.

3. The Module Status (S) LED blinks while the router module engine establishes communication with th e carrier.

4. The Module Status (S) LED stays illuminated once the r outer module engine establishes communication with the carrier board.

Figure 3-1 shows the LED locations on an Edge Router Module engine as installed on an ONline carrier . Each LED indicates the state of the module or port as described in Table 3-1.

Using the Edge Router Module 3 - 5

RTR

Reset

CONSOLE

Router Status

Module Status Token Ring

Activity Reset

Pushbutton

AUX

ACT

2203R-CS E

2103R-CS

Figure 3-1. Edge Router Module Engine LEDs

Serial Port 0 Activity

Serial Port 1 Activity

3 - 6 Edge R outer Module Installation Guide for Token Ring

Table 3-1. Interpreting Router Module Engine LEDs

LED Name Color State Indicates

RTR (Router Status)

S (Module

Status)

TR Activity (Token Ring

Activity) S0 ACT

(Serial WAN Port 0 Activity)

Green On Router is functioning properly.

Off or Blinking

Green Blinking The router module engine is

On Remains lit as long as there is

Yellow Blinking Traffic is being passed on the

Yellow Blinking Traffic is being passed on

Router is not functioning. Replace the router module or the router module engi n e.

in boot mode and is attempting to establish communication with the carrier board.

active communication with the carrier board.

token ring LAN to which the module is connected.

WAN Port 0.

S1 ACT (Serial WAN

Port 1 Activity)

Yellow Blinking Traffic is being passed on

WAN Port 1.

Using the Edge Router Module 3 - 7

Monitoring the ONsemble Carrier LEDs

This section describes how to use the ONsemble Carrier LEDs (Figure 3-2). It contains the following sections:

❑ Testing the LEDs ❑ Interpreting the LEDs

LED Test Switch ONsemble Engine

Carrier LEDs

Figure 3-2. Edge Router Module ONsemble Carrier LEDs

Testing the LEDs

If an LED fails to light and you suspect a problem, test the LEDs before performing additional troubleshooting procedures.

To test the LEDs:

1. Insert a thin, blunt object into the LED Test switch opening (see Figure 3-2) on the hub front panel, press in the switc h, and release.

3 - 8 Edge R outer Module Installation Guide for Token Ring

2. Observe the LED and verify that it lights as described below. a. The following LEDs light green for 2 seco nds:

– BUPS – Primary (top LED only) – System (top LED only) – 4 MB – 16 MB – Ports 1 and 2 (top LEDs only) – Stack Out (top LED only) – Stack In (top LED only) – Isolated

b. The followin g LEDs light yellow fo r 2 seconds:

– Primary (bottom LED only) – System (bottom LED only) – Beacon – Ports 1 and 2 (bottom LEDs only) – Stack Out (bottom LED only) – Stack In (bottom LED only)

c. The Hub ID display increment s by 1 from 0 to 8.

Note: The Power On LED and all Engine LEDs remain lit during the

entire LED test.

Using the Edge Router Module 3 - 9

Interpreting the Carrier LEDs

This section describes how to interpret the ONsemble Carrier LEDs. Table 3-2 describes how to interpret the Power On LED.

Table 3-2. Interpreting the Pow er On LED

LED

State

Green OnRouter module is

Green Off

Indication Possible Cause Corrective Action

receiving power. Router module is

not receiving power.

Router mo dule power cord is disconnected.

Router mo dule power cord is defective.

Power outlet is not supplying power.

Router mo dule failure.

LED failure. Repair the router modul e.

Connect the power cord.

Replace the power cord.

Make sure that the power outlet is supplying p ower within the required range .

Repair the router modul e.

3 - 10 Ed ge Router Module Instal lation Guide for Token Ring

Table 3-3 describes how to interpret the Primary LED.

Table 3-3. Interpreting the Primary LED

LED

State

Green OnInternal power

Yellow Blink

(BUPS only)

Indication Possible Cause Corrective Action

supply oper ating. Internal power

supply failed. Router module is receiving power from external Backup Power Supply (BUPS).

Router mo dule power cord is disconnected.

Router mo dule power cord is defective.

Power outlet is not supplying power.

Router mo dule failure.

Connect the power cord.

Replace the power cord.

Make sure that the power outlet is supplying p ower within the ranges specified in Appendix A.

Repair the router modul e.

Using the Edge Router Module 3 - 11

Table 3-4 describes how to interpret the BUPS LED.

Table 3-4. Interpreting the BUPS LED

LED

State

Green OnBackup power

Off Backup power not

Indication Possible Cause Corrective Action

available from external Backup Power Supply (BUPS).

available from external BUPS.

BUPS not installed. The BUPS is an optional

StackSystem component that provides backup power protection for u p to eight StackSystem components. You can connect a BUPS to any component that has an installed Power Interface Card (PIC).

Loose, improperly connected, or disconnected BUPS cable.

Make sure that the BUPS cable is connected co rrectly and is not loose .

BUPS supplying power to a hub with a failed power supply .

LED failure. Perform LED test (refer to

3 - 12 Ed ge Router Module Instal lation Guide for Token Ring

Replace the faulty hub.

Testing the LEDs on page 3 -8).

Table 3-5 describes how to interpret the System LED.

Table 3-5. Interpreting the System LED

LED

State

Green OnRouter module OK

Green Blink

Indication Possible Cause Corrective Action

and is currently managed by the management hub.

Router module OK, but cannot communicate with the management hub through the StackJack connection.

Loose, improperly connected, or disconnected StackJack cable.

Management hub powered off.

Management hub failure.

Incorrect cable used for StackJack cable.

Check StackJack LEDs. Make sure all StackJack cables are connected correctly and not loose.

Power up the management hub.

Check management hub status. If necessary, replace management hub.

Replace incorrect StackJack cable with a cable that meets specifications in ONs emble

Token Ring Hub Installation and Operation Guide.

Faulty StackJack connector.

Using the Edge Router Module 3 - 13

Repair the router modul e.

Table 3-5. Interpreting the System LED (Continued)

LED

State

Yellow OnIn-band software

Yellow Blink

Indication Possible Cause Corrective Action

download in progress.

Management hub setting up StackJack connections to router module.

If the LED remains yellow for more than 1 minut e, the management hub is unable to set up a StackJack management connection to router module.

Test failed. Router module m ay not be operational.

Normal but temporary condition.

Faulty cable. Replace StackJack cables

Hardware failure. Repair the router module.

Improper software initialization.

None required.

one at a time. Allow 1 minute between each replacement for the problem to clear.

Try recycling power once. If the test still fails, seek technical assistance.

Allowed internal operating temperature exceeded.

Hardware failure. Repair the router module.

Off Not used. LED failure. Repair the router module.

Table 3-6 describes how to interpret the Beacon LED.

3 - 14 Ed ge Router Module Instal lation Guide for Token Ring

Make sure fans are operating. If not, have router module repaired.

Make sure operating temperature of external environment is within specifications.

Table 3-6. Interpreting the Beacon LED

LED

State

Off Router module ring

Yellow OnRouter module ring

Indication Possible Cause Corrective Action

is not beaconing.

is beaconing. The beacon

recovery feature corrects this condition. Unless beacon recovery is disabled, this LED should light only for a short period of time.

Cabling failure. Check the lobe cable

connections at all connection points.

Check the connection points of Ring-In /Ring-Out trunks, if present in the stack.

NIC failure. Make sure all NICs are

installed and operating properly. Check the port LEDs to help identi fy the faulty NIC.

Speed detection disabled and station inserted into ring at incorrect speed.

Enable speed detection (SET PORT SPEED_DETECT) and make sure all NICs are set to the same ring speed.

Recovery is disabled. Enable beacon recovery.

Table 3-7 descr ibes how to interpret the Speed LED.

Table 3-7. Interpreting the Speed LED

LED State Indication Possible Cause Corrective Action

Green On (4 MB or 16 MB)

The two internal token ring ports are running at the indicated speed (4 Mbps or 16 Mbps).

Using the Edge Router Module 3 - 15

Table 3-8 describes how to interpret the Port LEDs.

Table 3-8. Interpreting Port LEDs

LED

State

Green OnPort enabled and

Green Blink

Indication Possible Cause Corrective Action

attached station inserted in ring.

Port enabled but attached station not inserted.

(Phantom current is not detected.)

No station is connected.

The station is powered off or the NIC is not operating.

Incorrect lobe cabling.

Faulty lobe port. Try a secon d port. If the

Lobe cable is disconnected.

If desired, connect a station.

Make sure the station is powered up and the NIC is operating correctly.

Make sure the correct cable is plugged into the hub port and the station is plugged into the correct wall jack.

second port works, the original port needs to be repaired.

Make sure the lobe cable is connected at the hub and at the NIC.

In active hubs only, the station is running at the incorrect speed.

3 - 16 Ed ge Router Module Instal lation Guide for Token Ring

Make sure that the speed of the connected station matches the hub ring speed.

Table 3-8. Interpreting Port LEDs (Continued)

LED

State

Yellow OnPort automatically

Yellow Blink

Indication Possible Cause Corrective Action

disabled due to security breach.

Port automatically disabled due to beaconing conditio n or connected station running a t incorrect ring speed.

The security feature is enabled and a station with an unauthorized MAC address attempted to insert into the ring.

NIC is set to incorrect ring speed.

Ring is beaconing. Beaconing is typically due to

Reconfigure the security settings to allow th e newly-connect ed station to use this port. For instructions, refer to the

ONsemble StackSystem Token Ring Hub Management Guide.

Make sure the NIC is configured for the same ring speed as the hub. Ring speed can be 4 or 16 Mbps. Ring Speed LEDs on the hub front panel indicate hub ring speed. Use the SHOW PORT management command f or additional inform ation.

a faulty NIC or cable. Use the SHOW POR T management command for information.

Off Port disabled. User disabled the

port.

LED failure. Perform LED test (refer to

Table 3-9 descr ibes how to interpret the Stack In and Out LEDs.

Using the Edge Router Module 3 - 17

If desired, use the SET PORT MODE com mand to enable the port. For instructions on using this command, refer to the ONsemble StackSystem

Token Ring Hub Management Guide.

Testing the LEDs on page 3 -8).

Table 3-9. Interpreting Stack In and Stack Out LEDs

LED

State

Green OnStackJack

Green Blink

Yellow OnManagement hub

Indication Possible Cause Corrective Action

connection In or Out functioning correctly.

StackJack connection In or Out enabled but no data signal (phantom) detected.

setting up StackJack management connections to router module.

Hub connec ted to router module by StackJack cable is powered off or faulty.

Cable other than StackJack cable connected to t he Stackjack port.

StackJack cable connected to incorrect port.

Normal but temporary condition.

Check LEDs on connect e d hub. Replace connected hub if necessary.

Make sure that a lobe or trunk (Ring-In/Ring-Out ) cable is not connected to the StackJack port.

Make sure that StackJack In connects to StackJack Out.

None required.

Illegal cabling configu ration.

3 - 18 Ed ge Router Module Instal lation Guide for Token Ring

Cable other than StackJack cable connected to t he StackJack port.

Make sure that a lobe or trunk (Ring-In/Ring-Out ) cable is not connected to the StackJack port.

Table 3-9. Interpreting Stack In and Stack Out LEDs (Continued)

LED

State

Yellow On (Cont.)

Yellow Blink

Indication Possible Cause Corrective Action

Illegal cabling configu ration (Cont.)

If the LED remains yellow for more than 1 minut e, the management hub is unable to set up a StackJack management connection to another hub .

StackJack connection autodisabled due to beaconing condition.

StackJack cable connected to incorrect port.

Router module lost communication with management hub.

Faulty management hub.

Faulty cable. Replace StackJack cables

Hardware failure. Isolate the faulty hub and

Faulty StackJack cable.

Make sure that StackJack In connects to StackJack Out.

Make sure no StackJack cables have become disconnected.

Replace management hub.

one at a time. Allow 1 minute between each replacement for problem to clear.

have it repaired.

Replace cable.

Using the Edge Router Module 3 - 19

Table 3-9. Interpreting Stack In and Stack Out LEDs (Continued)

LED

State

Indication Possible Cause Corrective Action

Off StackJack trun k

connection disabled by network management command.

Table 3-10 describes how to interpret the Isolated LED.

StackJack trunk disabled by network management command.

During norm al operation, StackJack trunks should be enabled. Use the SET TRUNK MODE command to enable the StackJack trunk connections. For information, refer to the

ONsemble StackSystem Token Ring Hub Management Guide.

LED failure. Perform LED test (refer to

Testing the LEDs on page 3 -8).

3 - 20 Ed ge Router Module Instal lation Guide for Token Ring

Table 3-10. Interp ret ing the Isolate d LED

LED

State

Green OnThe router module

Off The router module

Indication Possible Cause Corrective Action

The network is assigned to th e isolated network. Lobe ports on this router module are isolated from ports on other hubs in the stack.

is assigned to th e main stack r ing (token_ring_1)net work. Lobe ports on the route r module are on the same ring as other hubs in the stack that are also assigned to token_ring_1.

manager assigned

the router module to

the isolated network.

The factory setting

for network

assignment is

token_ring_1.

LED failure. Perform LED test (refer to

To assign the router module to the main stack ring (token_ring_1), use the SET HUB NETW ORK command. For informatio n on this command, refer to the

ONsemble StackSystem Token Ring Hub Management Guide.

To isolate the router module from the main stack ring, use the SET HUB NETWORK command. For information on this command, refer to the ONsemble StackSystem

Token Ring Hub Management Guide.

Testing the LEDs on page 3 -8).

Using the Edge Router Module 3 - 21

Recovering a Lost Pas swo rd

Use the following proced ure to recover a lost password:

1. Attach an ASCII terminal to the router module console port.

2. Configure the terminal to operate at 9600 baud, 8 data bits, no parity , 2 stop bits.

3. Enter the SHOW VERSION command to display the existing configuration register value. Note this value for later use in step 13.

4. If the Break function is disabled on the router (see T able C-1), power cycle the router . (T urn off the router , wait 5 seconds, and then turn it on again.) If the Break function is enabled, go to step 5.

5. Within 60 seconds of turning on the router, press the Break key. Pressing this key causes the terminal to display the bo otstrap program prompt (>).

6. To reset the virtual configuration register t o boot from the boot ROMs and ignore NVRAM, enter the O/R command at the bootstrap prompt:

> o/r 0x2 14 1

Note: To recover a lost password, you must be able to see it

when you display configuration information. To see the password, be sure to set the configuration register so that the router module engine ignores the contents of the NVRAM.

7. Initialize the router by entering the I command as follows:

> i

The router power cycles and the configuration register is set to 0x2141 (ignore Break key, ignore NVRAM, boot from ROM).

3 - 22 Ed ge Router Module Instal lation Guide for Token Ring

The router boots the boot ROM system image and prompts you with the following system configuration dialog prompt:

--- System Configuration Dialog ---

8. Enter No in response to the system configuration dialog prompts until the following system message appears:

Press RETURN to get started!

9. Press Return. The boot ROM prom pt appears as follows:

Router(boot)>

10. Enter the ENA BLE command to enter the EXEC mode in the boot ROM image. The prompt changes to the following:

Router(boot)#

11. Enter the SHOW CONFIGURATION EXEC command to display the password in the configuration file and to display any boot system commands.

12. To exit confi gur ation mode , enter Ctrl- Z.

13. Restore the virtual configuration register to the value noted in step 3. Use the CONFIGU RE TERMINAL command to restore the value:

router# configure termin al Enter system configuration commands, one per line. Edit with DELETE, CTRL/W, and CTRL/U; end with CTRL/Z

config-reg 0x ^Z

YYYY

where YYYY is the value noted in step 3.

14. Reboot the router and use the recovered password.

Note: Refer to Appendix C for more information about the virtual

configuration register.

Using the Edge Router Module 3 - 23

Updating or Up grad i ng IOS S oftware

The router module Internetworking Operating System (IOS) software is stored on a Flash SIMM on the router module engine (Figure 3-3).

IOS Software Image Flash SIMM

Figure 3-3. IOS Software Flash SIMM

You update or u pgrade the IOS software image by copying a new IOS software image to the Flash SIMM. If you upgrade to a version of IOS software that requires more IOS memory than is currently installed on your engine module, you must replace the Flash SIMM with a larger one. Some revisions of IOS software may require that you also replace the Boot PROMs (Programmable Read-Only-Memory) on the engine. The Boot PROMs contain the basic startup software from which the IOS software is activated.

3 - 24 Ed ge Router Module Instal lation Guide for Token Ring

This section contains procedures for performing the following tasks:

❑ Revising IOS software ❑ Increasing IOS software memory ❑ Replacing the Boot PROMs

Revising IOS Software

Revise IOS software by copying a new IO S software image to Flash memory. Typically, you copy a new IOS image when one or more of the following conditions occurs:

❑ A maintenance release of the IOS image becomes available. ❑ You choose to upgrade your IOS image to include an enhanced IOS

feature set.

Note: If the boot PROMs for your system support Flash load

helper, you can use Flash lo ad helper to download a new IOS image. Otherwise, you must m anually download the new image to Flash SIMM. Refer to the following sections for procedures.

Using Flash Load Helper

Flash load helper is a software option that enables you to upgrade system software on systems that boot from Flash memory . Flash load helper is an automated procedure that reloads the PROM-based image, downloads the new IOS software image to Flash memory , and r eboots the router module using the new system image in Flash memory . Refer to the chapter Loading System Images, Microcode Images, and Configuration Files in the Cisco Systems Router Pro ducts Configu ration Guide for detailed instructions about using Flash load helper.

Using the Edge Router Module 3 - 25

Revising IOS Software Manually

If the boot ROMs on your system do not supp ort Flash load helper, you must perform the Flash upgrade manually . T o copy a new image into Flash memory (write to Flash), first reboot from ROM and then copy the new image into Flash memory.

Note: You cannot copy a new image into Flash memory while the

system is running from Flash memory. Use the COPY TFTP FLASH command to copy the new IOS software image.

The following display is the sample output for reloading t he router and then copying a new image file (called IJ09140Z) to Flash memory from a TFTP server (called server1):

router# conf ig ur e te rminal Enter system configuration commands, one per line.

Edit with DELETE, CTRL/W, and CTRL/U; end with CTRL/Z

config-reg 0x2101 ^Z

The configuration register setting 0x2101 tells the system to boot from ROM, bu t it does not enable the Break function or check for a default netboot filename.

Note: Refer to Appendix D for more information on the bootstrap

program.

router # reload ... router (bo ot)# c opy tftp flash IP address or name of remote host [255.255.255.255]? server1 Name of tftp filename to copy into flash []? IJ09140Z copy IJ09140Z from 131.131.101.101 into flash memory? [confirm] <Return> xxxxxxxx bytes available for writing without erasure. erase flash before writing? [confirm] <Return> Clearing and initializing flash memory (please wait)####... Loading from 101.2.13.110: !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!... [OK - 324572/524212 bytes]

3 - 26 Ed ge Router Module Instal lation Guide for Token Ring

Verif yi ng checks um ... VVVVV VV VVVVVVV VV VVVVVV VVV VV VVVVVV VV VVVVVVV VV VV VVVVVV VV VV VVVVV VVVVV VV VVVVVVV VV VV... Flash verification successful. Length = 1204637, checksum = 0x95D9

router(boot)# config term Enter configuration commands, one per line.

Edit with DELETE, CTRL/W, and CTRL/U; end with CTRL/Z

config-reg 0x2102 ^Z

router(boot)# reload ...

The configuration register setting 0x2102 tells the system to:

❑ bBoot from ROM if netboot fails ❑ Disable the Break key ❑ Check for a default netboot filename

The system is now ready to be configured to boot from the new image you copied to Flash memory. For more information on the COPY TFTP FLASH command, and other related commands, refer to the Cisco Systems Router Products Configuration Guide.

Cisco Systems technical documentation i s available on U niverCD, or a printed copy of individual technical documents can be ordered separately .

Increasing IOS Software Memory

The IOS software image is stored on a Flash SIMM. You might need to replace the current Flash SIMM with a larger one if you are upgrading to an IOS software image that is too large for the existing Flash SIMM.

The router engine contains the Flash SIMM slot (see Figure 3-3). You can purchase the 80-pin F l a sh SIMMs from 3Com Corporation. Contact a customer service representative for more information.

Using the Edge Router Module 3 - 27

Replacing the Flash SIMM

Replacing the Flash SIMM requires the following tools and equ ipment:

❑ Medium-siz e flat -blade screwdriver (1/4 inch [0.625 cm]) ❑ ESD-preventive wrist strap ❑ The new Flash SIMM

To replace the Flash SIMM on your router module engine:

1. Remove the router module from the hub or stack in which it is installed.

2. Attach an ESD-preventive wrist strap.

3. T urn the router module so that the open end of the Flash SIMM faces you.

4. Remove the existing Flash SIMM by pulling outward on the connectors to unlatch them. The connector holds the SIMM tightly, so be careful not to break the holders on the SIMM connector (Figure 3-4).

3 - 28 Ed ge Router Module Instal lation Guide for Token Ring

Pull tabs away with thumbs, bracing

Connector edge of  system board

forefingers against  posts. Raise SIMM to a vertical position.

Memory SIMM card

Polarization notch

H2017

Figure 3-4. Removing and Replacing a SIMM — Flash SIMM Shown

Caution: To prevent damage to the SIMM, do not push on the

center of the SIMMs. Handle each SIMM carefully.

5. Position the new Flash SIMM so that the polarization notch is located at the right end of the SIMM socket.

Caution: To prevent damage to the SIMM, note that som e Flash

SIMMs have the compon ents mounted on the rear side. When inserting the SIMM , always use the polarization notch as a reference, not the position of the components on the SIMM.

Using the Edge Router Module 3 - 29

6. Insert the new SIMM by sli din g the end with the metal fing ers in to the SIMM con nector socket at approximately a 45- degree angle to the router module engine. Gently rock the SIMM back into place until the latch on either side snaps into place. Do not use excessive force because the connector could break.

7. Re-insert the router module in the hub or stack.

8. Connect an engine management console to the router module. If error messages relating to memory appear, repeat steps 1

through 7, taking care to firmly seat the SIM M in the socket.

Replacing the Boot P ROM s

Base startup code for the router module resides in two boot PROMs. When the router module is inserted in the hub or stack, base code in the boot PROMs activates. The base code then starts the IOS router software that resides in the engine Flash SIMM (see Figure 3-3).

You may have to replace the boot PROMs when you update or upgrade your IOS software. The boot PROMs are installed in sockets on the router module engine (Figure 3-5).

IOS Boot PROMs

FW1

FW2

Figure 3-5. Boot PROM Locations

3 - 30 Ed ge Router Module Instal lation Guide for Token Ring

The boot PROMs are ins talled in PROM sockets labelled FW1 and FW2. Each boot PROM has a printed label identifying its socket number and part number.

Replacing the boot PROMs requires the following tools and equipment:

❑ A small Phillips-head screwdriver ❑ PROM extraction tool or a small flat-blade screwdriver ❑ The two upg rade boot PROMs

To replace the boot PROMs:

1. Remove the router module from the hub or stack.

2. Attach an ESD-preventive wrist strap.

3. Separate the router module engine from the carrier by using the small Phillips- head screw driver to remove the engine mountin g screws.

4. Locate boot PROMs FW1 and FW2 (see Figure 3-5).

Caution: To prevent damage to the PROMs from ESD (when

handling the system and its components), foll ow the ESD procedures described earlier in the section Precautionary Procedures. Also, be careful not to damage or scratch the printed circuit card un der the PROMs.

5. Using a PROM extraction tool or a small flat-blade screwdriver, gently remove the boot PROMs and set them aside.

Using the Edge Router Module 3 - 31

Caution: Correct placement of the boot PROMs is crucial. If the

PROMs ar e installed in the wrong sockets they could be damaged wh en you install the router module.

6. Insert each new boot PROM in its required socket as identified in Figure 3-5. Be careful not to bend or crush any of the bottom pins. If you inadvertently bend a pin, use needle-nose pl iers to carefully straighten it. Align the notch in the new PROM with the notch in the PROM sock et (igno re the orientation of the label).

7. Re-insert the router module into the hub or stack.

Increasing Operating Memory

The router module us es operating memory to h andle configuration and operating data that are specific to your router module installation. Operating memory is contained in Dyn amic Random Access Memory (DRAM) on the router module engine.

This section provides information about the following router module operating memory topics:

❑ Base DRA M M emory Configurations ❑ Allocation of Operating Memory ❑ Addin g DRAM SIMM Memory

3 - 32 Ed ge Router Module Instal lation Guide for Token Ring

Base DRAM Memory Configuration

The base router module may have 2 MB of fixed DRAM soldered on the engine. In addition, a DRAM SIMM socket is available to increase operating memory by adding a DRAM SIMM (Figure 3-6).

Operating Memory Fixed DRAM

Operating Memory DRAM

Figure 3-6. DRAM Operating Memory on the Router Module Engine

Note: In some router module models, DRAM memory is provided

only in the DRAM SIMM socket.

You might need to increase operating memory by installing or replacing a DRAM SIMM if the following conditions occur:

❑ Your rou ting tables grow significant ly. ❑ The number of routing protocols that you support increases

significantly.

❑ Y ou set the router up as a connection device between large external

networks and your internal network.

Using the Edge Router Module 3 - 33

Allocation of Operating Memory

The router module us es operating memory fo r a combination of prima ry and shared memory functions. Primary memory stores the router configuration and routing tables. Shared memory is used for packet buffering on the router network interfaces.

After booting your system, the system ban ner on the console screen displays the amount of primary memory, in kilobytes (KB). The following example show s a system with 1 MB (1024 KB) of prima ry memory.

Note: The system displays primary memory only. The memory

total does not include shared memory .

The mix of the installed DRAM memory types, fixed or SIMM, affects the way shared and primary memory are allocated. T able 3-11 shows how the router module allocates various configurations of fixed DRAM and DRAM SIMM memory.

Table 3-11. Memor y Allocation

Fixed DRAM

Memory Installed

DRAM SIMM

Memory

Installed

Memory

Allocated as

Shared

Memory

0 MB 4 MB 2 MB 2 MB 0 MB 8 MB 2 MB 6 MB 0 MB 16 MB 2 MB 14 MB 2 MB 0 MB 1 MB 1 MB 2 MB 4 MB 2 MB 4 MB

3 - 34 Ed ge Router Module Instal lation Guide for Token Ring

Memory

Allocated as

Primary

Memory

Table 3-11. Memory Allocation (Continued)

Fixed DRAM

Memory Installed

2 MB 8 MB 2 MB 8 MB 2 MB 16 MB 2 MB 16 MB

DRAM SIMM

Memory

Installed

Adding DRAM SIMM Memory

Installing or replacing the DRAM SIMM requires the follow ing tools and equipment:

❑ Medium-sized flat-blade screwdriver (1/4 inch [0.625 cm]) ❑ ESD-preventive wrist strap ❑ The upgrade DRAM SIMM

To install or replace a DRAM SIMM:

1. Remove the router module from the hub or stack in which it is installed.

Memory

Allocated as

Shared

Memory

Allocated as

Primary

Memory

2. Attach an ESD-preventive wrist strap.

3. Turn the router module so that the DRAM SIM M socket faces you.

4. Remove the existing DRAM SIMM (if installed) by pulling outward on the connectors to unlatch them (see Figure 3-4). Be careful not to break the holders on the connector.

Caution: To prevent damage, do not push on the center of the

SIMM. Handle the SIMM carefully.

Using the Edge Router Module 3 - 35

5. Position the new SIMM so that the polarization notch is located a t the right end of the SIMM socket.

6. Insert the new DRAM SIMM by sliding the end with the metal fingers into the DRAM SIMM connector socket at approximately a 45-degree angle to the system card. Gently rock the SIMM back into place until the latch on either side snaps into place. Do not use excessive force because the connector could break.

7. Re-insert the router module in the hub or stack.

8. Connect an engine management console to the router module. If error messages relating to memory are displayed, repeat steps 1

through 7, taking care to firmly seat the SIMM in the socket.

3 - 36 Ed ge Router Module Instal lation Guide for Token Ring

Troubleshooting

This chapter provides hardware troubleshooting information you can use if the Edge Router Mod ule fails to operate correctly. If after reviewing th e information in this chapter, you cannot correct the problem, contact your 3Com representative for further assistance.

Note: For software-related troubleshooting information, refer to

the appropriate Cisco Systems manual.

This chapter contains the following sections:

❑ Troubleshooting Startup Problems ❑ Troubleshooting Network Connectivity Problems ❑ Troubleshooting WAN Connectivity Problems ❑ Correcting Operating Malfunctions ❑ Obtaining T echnical Assistance

Troubleshooting 4 - 1

Troubleshooting Startup Problems

This section describes how to troubleshoot startup problems by monitoring the LEDs on the Edge Router Module.

This section describes:

❑ Troubleshooting Engine Problems ❑ Troubleshooting Mailbox Interface Problems ❑ Troubleshooting 3Com Carrier Problems

Troubleshooting Engine Problems

When you first install the Edge Router Module in the hub, the Cisco router board runs a full set of hardware diagnostic tests. If the board fails diagnostics, the Router (RTR) LED does not illuminate or will flash. This indicates a problem with the router hardware or software. Refer to the appropriate Cisco troubleshooting documentation for corrective action.

Troubleshooting Mailbox Interface Problems

During powerup, the Cisco router board communicates with the 3Com carrier board through a hardware mailbox. If the 3Com carrier does not establish commu nication with the Cisco engine over the m ailbox, the following message is reported to the router’s console port:

%MAILB OX -3- IN ITF AIL:M ai lbo x ini ti ali za tio n fa ilu re . N ot ge tt ing interr up ts. M ail box o ff lin e.

If you see this me ssag e, co ntact your 3Com representative for assistance.

4 - 2 Edge R outer Module Installation Guide for Token Ring

Troubleshooting 3Com Carrier Problems

Before mailbox communication is initialized and established between the Cisco router board and the 3Com carrier board, the Module Status (S) LED on the front panel of the Edge Router Module blinks slowly. If communication is established successfully, the Status LED illuminates and stays On solid. If the Status LED does not light, the 3Com carrier board has malfunctioned. Contact 3Com Customer Support for assistance.

Tro ubl es hootin g Network Con nec tiv ity Problems

If the Edge Router Module does not appear to be routing traffic properly on the network, it may indicate that there is no connection to the network. Try perfor ming one or more of the following troubleshooting actions:

❑ From the 3Com management interface (for example, ONline

management module), verify that the Edge Router Module backplane port is set to the appropriate backplane network (channel).

❑ Using the Cisco terminal interface, verify that the following

parameters are set correctly: – IP address – Subnet mask – Default gateway

❑ Use the ping utility to confirm n etwork connectivity exists. ❑ Use the CISCO>SHOW INTE RFACE TOKEN RI NG 0 command to verify

that the interface is up an d running. This comma nd reports token ring statistics that aid you in troubleshooting the network.

If the interface is down, you may need to use the Cisco configuration editor to issue the NO SHUTDOWN command. The NO SHUTDOWN command restarts a disabled interface.

Troubleshooting 4 - 3

❑ V erify that the router module engine, the router module carrier, and

the network ring to which the router module is connected are set to the same ring speed.

❑ Verify that your router module engine configuration is valid. Refer to

the Cisco Troubleshooting Internetworking Systems guide for more information.

Troubleshooting WAN Connectivity P roblems

If you suspect that the Edge Router Module has lost WAN connectivity, perform one or more of the following troubleshooting actions:

❑ Verify that you have the correct cable for your configuration. Refer to

Appendix B, Cabling Specifications, for a list of approved cables, cable specifications, and pinouts.

❑ If using a:

❑ DCE cable — Verify that a clock rate is defined in the router WAN

interface configuration.

❑ DTE cable — Verify that no clo ck rate is defined in the router

WAN interface configuration.

❑ Verify that the cable’s 60-pin WAN connector is not plugged in

backwards.

❑ Ensure that the router configuration does not have a SHUTDOWN

command associated with the interface.

❑ Verify that your router configuration is valid. Refer to the Cisco

Troub leshootin g Intern etwo rking S ystem s guide for more information.

4 - 4 Edge R outer Module Installation Guide for Token Ring

Correcting Operati ng Malfunction

T able 4-1 lists the symptoms of operating malfunctions for the Edge Router Module and shows possible causes and corrective actions for these malfunctions.

Table 4-1. Tro ub lesho o ting Malfunct ions

Symptom Possible Cause Corrective Action

Module does not power on.

Attached terminal does not operate.

Module is not fitted correctly against backplane.

The hub is receiving no electrical power.

The terminal is malfunctioning.

Cables are unattached.

Cables are not the correct type.

Remove the module from the slot and replace it in the slot to ensure that t he module is fitted correctly.

Place the module in a different slot in the hub.

Check that the hub is receiving power . Test for power at the wall outlet by

plugging in another device. Select another outlet on a different

circuit if necessary. Follow the troubleshooting

procedures recommended by the terminal manufacturer.

Make sure that the cable connections at both ends are secure.

Make sure that the cable attached to the terminal conforms to the specification as described in Attaching a Management Terminal on page 2-18.

Troubleshooting 4 - 5

Table 4-1. Troubleshooting Malfunctions (Continued)

Symptom Possible Cause Corrective Action

Attached terminal does not operate. (Cont.)

The terminal fails to respond to commands entered at the keyboard.

The console or auxiliary port is configured incorrectly.

The terminal is not configured correctly.

The terminal is not receiving commands.

The keyboard cable is attached incorrectly .

Check the console port and auxiliary port configurations.

Note: You can TELNET to the router to verify port configuration s.

Refer to the Cisco Router Products Configuration and Reference documentation for more information. Verify that the port is configured as 8-bit data, no parity, 1 stop bit, 9600 baud rate, with flow control parameters set to Xon and Xoff.

Verify that the port is configured as 8-bit data, no parity, 1 stop bit, 9600 baud rate, with flow control parameters set to Xon and Xoff.

Power off the terminal, wait 30 second s, and then power it on again.

If the terminal still does not respond to commands, power off the terminal and disconnect the keybo ard cable. Then reattach the keyboard cable and power on the terminal.

The console port is malfunctioning.

4 - 6 Edge R outer Module Installation Guide for Token Ring

Check the state of the router module by checking the LEDs on the front of the router module engine as shown in Figure 3-1. If the LEDs indicate a problem, cont ac t your supplier for assistance.

Obtaining Technical Assi stan ce

You can receive assistance for installing and troubleshooting the router module by calling your supplier or 3Com Customer Support. Be prepared to supply the following information:

❑ Description of the problem ❑ Steps you have taken to try to correct the problem ❑ Status of the front panel LEDs ❑ Version of network management in use ❑ Hardware and software version of the module ❑ Configuration of your network ❑ Configuration of your hub

For instructions on contacting 3Com Customer Suppo rt, refer to Appendix E.

Troubleshooting 4 - 7

Produ ct Specification s

This appendix contains the following hardware specifications for the 3Com Edge Router Mo dule:

❑ General Spe cificat ions ❑ Electrical Spec ificatio ns ❑ Router Module Capacities ❑ Environmenta l Specifica tions ❑ Mechanical Spe ci fica tion s

Product Sp ec ifications A - 1

General Specific atio ns

Processo r 20 MHz Motorola 68EC030 Memory 2 MB primary memory (DRAM on board),

expandable to 4, 6, or 10 MB with the addition of a 2, 4, or 8 MB SIMM 1 MB boot ROM (expandable) 4 MB system code (Fla sh SIMM ) (expandable to 8 MB with exchange for 8 MB SIMM) 32 KB non-volatile configuration RAM

Network

1 token ring and 2 synchronous serial

Interface Options

Token Ring

1 backplane connection

Interface Synchronous

Serial Interfaces

Console and

RS-232, RS-449, V.35, X.21 (N RZ/NR ZI1 and DTE/DCE2), EIA-530 (NRZ/NRZI and DTE). All serial cables use a DB-60 connector.

Asynchronous serial (mini-DIN)

Auxiliary Ports

NRZ = Nonreturn to zero. NRZI = N onreturn to zero

inverted.

DTE = Data terminal equipment. DCE = Data

communications equipment.

A - 2 Edge Router Module Installation Guide for Token Ring

3com 5203R-CSE, 5203R-CSDI, 5203R-CSD, 5203R-CSIX, 4203R-CSE Edge Router Module Installation Guide for Token Ring

Specifications and Main Features

Frequently Asked Questions

User Manual

Audience

Structure of This Guide

Document Conventions

Related Documents

3Com Documents

Cisco Systems Documents

Reference Documents

Product Overview

Router Module Operation

Router Module Archi tecture

Router Module Features

Software Options

Topology Switching Capability

Network Reliability

IOS Router Software Updates

Memory Upgrades

Installation Overview

Precautionary Procedures

Troubleshoot ing Installation Problems

Quick Install atio n

Unpacking Procedures

Verifyin g the Jumper Plug Positi ons

Verifying Jumper Plug Positions on the Engine

Configuring the Router Module in an Unmanaged Hub

Locating the ONline Carrier DIP Switches

Selecting a Backplane Network

Setting the Ring Speed

Isolating the Router Module

Installing the Router Module

Installing the ONlin e Edge Router Module

Installing the Edge Router Modu le

Re-initializing the Backplane

Installing the ONsemb le Edge Router Modu le

Configurin g the Router M od ule i n a Manag ed Hub

Managed Configuration Overview

Attaching a Management Terminal

Attaching a Terminal to the Management Module

Configuring the Edge Router Module Engine

Configuring the Edge Router Module Carrier

Configuring the ONline Carrier in a Managed Hub

Configuring the ONsemble Carrier

Showing the Engine Configuration and Status

Showing the Carrier Configuration and Status

Using the SHOW MODULE Command

Using the SHOW PORT Command

Monitoring Ro u ter Mo dul e Op eratio n

Monitoring Engine LEDs

Monitoring the ONsemble Carrier LEDs

Testing the LEDs

Interpreting the Carrier LEDs

Recovering a Lost Pas swo rd

Updating or Up grad i ng IOS S oftware

Revising IOS Software

Using Flash Load Helper

Revising IOS Software Manually

Increasing IOS Software Memory

Replacing the Flash SIMM

Replacing the Boot P ROM s

Increasing Operating Memory

Base DRAM Memory Configuration

Allocation of Operating Memory

Adding DRAM SIMM Memory

Troubleshooting Startup Problems

Troubleshooting Engine Problems

Troubleshooting Mailbox Interface Problems

Troubleshooting 3Com Carrier Problems

Tro ubl es hootin g Network Con nec tiv ity Problems

Troubleshooting WAN Connectivity P roblems

Correcting Operati ng Malfunction

Obtaining Technical Assi stan ce

General Specific atio ns