3Com 5101M-MGT User Manual

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Page 1

ONline Ethernet Management

Module Installation and

Operation Guide

Document Number 17-00087-7

Printed March 1995

Model Number: 5101M-MGT

Software Version: 4.0

3Com Co rporation 118 Turnpike Road

Southbo rough, MA 0177 2-1886

U.S.A.

(508) 46 0- 8900

FAX (508) 460-8950

Page 2

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

Cet appareil numérique respecte les limites de bruits radioélectriques applicables aux appareils numériques de Classe A prescrites dans la norme sur la matériel brou illeur: "Appareils Numériques", NMB-003 édictée par le Ministère des Communications.

This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus as set out in the interference-causing equipment standard entitled "Digital Apparatus", ICES-003 of the Department of Communications.

VDE Class B Compl ianc e

Hiermit wird bescheinigt, dass der 5101M-MGT 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 the 5101M-MGT is shielded against radio interference in accordance 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 Com pl ian c e

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.

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.

1995, by Chipcom Corporation, a subsidiary of 3Com Corporation. Printed in U.S.A. All rights reserved. 3Com is a registere d trade mark of 3Com Corporat ion. ONcore is a registered trademark of Chipcom Corporation. 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.

Artel, Chipcom, Ethermo dem, Galactica, ONcore, ORnet, StarBridge, and Tr iChannel are reg ister e d tra demark s of C hipcom Corporation.

Chipcom OpenHub, G-Man, LANsentry, MultiProbe, ONdemand, ONline, ONsemble, PowerRing, SL2000, SL3000, SL4000,

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StackJack, StackSystem, and SwitchC entral are trademarks of Chipcom Corporation.

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

DEC, DECnet, the Digital logo, DELNI, POLYCENTER, VAX, VT100, and VT220 are trademarks of Digital Equipment Corporation.

IBM is a registered trademark of International Business Machines. NetView is a trademark of International Business Machines.

ST is a registerd trademark of AT&T. UNIX is a registered trademark in the U.S.A. and other countries

licensed exclusively through X/Open Company, Ltd. XNS is a trade mark a nd Ethernet is a r egistered trademark of Xerox

Corporation. 3ComFacts, Ask 3Com, CardFacts, NetFacts, and CardBoard are

service marks of 3Com Corporation. 3Com, LANplex, BoundaryRouting, LanScanner, LinkBuilder,

NETBuilder, NETBuilderII, ParallelTasking, ViewBuilder, EtherDisk, Etherl\Link, Ether Link Plus, EtherLink II, TokenLink, T okenLink Plus, and TokenDisk are registered trademarks of 3Com Corporation.

3ComLaser Library, 3TECH, CacheCard, FDDILink, FMS, NetProbe, SmartAgent, Star-Tek, and Transcend are trademarks of 3Com Corporation.

CompuServe is a registered trademark of CompuServe, Inc. 3Com registered trademarks are registered in the United States,

and may or may not be register ed i n other countrie s. Other brand and product names may be reg istered tradema rks or trademark s of their respective holders.

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.

Printed on recycled paper.

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iv ONline Ethern et Management Mo dule Installation and Operation Guide

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How to Use This Guide

Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xiv

Structure of This Guid e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xiv

Document Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv

Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii

3Com Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii

Reference Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii

Chapter 1 — Introduction

The ONline Ethernet Managem ent Module . . . . . . . . . . . . . . . . . . . . . . . 1-1

Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Complete ON lin e C on trol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

ONline Ethernet Management Mo du le Versions . . . . . . . . . . . . . . . . 1-5

The EMM Starter Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

The EMM Basic Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

The EMM Advanced Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Network Management Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Network Management Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

ONline Backplane Archi tectu r e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

Where To Go From Here . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

Contents

Chapter 2 — Unpacking and Installin g the Mod ul e

Precautionary Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Unpacking Procedu re . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Installation Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Verifying Operatio n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

The EMM Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Status LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Master Mgt Module LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Download in Progress LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

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Reset Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

RS-232 Serial Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Where to go From Here . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Chapter 3 — Startup and Management Functions

Quick Reference for Getti ng Starte d . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Saving and Reverting Configuratio n Values . . . . . . . . . . . . . . . . . . . . 3-3

Configuring the Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Optional Termi nal Setting s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Setting Terminal Hang up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Setting Terminal Promp t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Setting Terminal Tim eo ut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Configuring the EMM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Setting Device Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Establishing the Administrator Password . . . . . . . . . . . . . . . . . . 3-10

Establishing the User Password . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Assigning an EMM Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Setting Device Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Assigning a Contact N am e and Locatio n . . . . . . . . . . . . . . . . . . . . . 3-12

Configuring SNMP Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

Assigning IP Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Creating a Community Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Configuring the Alert Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Setting a Subnetwork Mask . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Defining the Default Gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Enabling Trap Receive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Configuring Modules and Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Assigning Modu le Networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 -17

Assigning Module Mastersh ip Prio rity . . . . . . . . . . . . . . . . . . . . . . . 3-18

Setting Port Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 -19

Setting Port Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Setting Redundant Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Configuring Address-to-Port Sec urit y . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

Managing Security with EMM Master and Slaves . . . . . . . . . . . . . . 3-21

Establishing Rem ot e Logins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Logging Out From a Remote Session . . . . . . . . . . . . . . . . . . . . . . . 3-24

Monitoring With SHOW Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24

Showing Device Informa t ion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 -24

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Showing Mod ule Informa t ion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 -25

Showing Port Inform atio n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26

Showing Conc entr at or Information . . . . . . . . . . . . . . . . . . . . . . . . 3 -26

Showing Coun ter Statistic s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27

Using the MONI TO R Co mm and . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 -28

Where To Go From Here . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28

Chapter 4 — Troubleshooting

Applying Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

EMM and Terminal Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

EMM Trap Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Technical Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

EMM Network Impact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

3Com Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Chapter 5 — Software Download Instructions

Download Requ irements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

How the FDK and UDK Process Works . . . . . . . . . . . . . . . . . . . . . . . 5-3

Out-of-Band Do wn load Instru ctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Installing the ProComm Software . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Connect the RS-23 2 Cabl e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

Preparing to Download the New Software . . . . . . . . . . . . . . . . . . . . 5-8

Downloading the New Software . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11

Inband Downl oad In structions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19

ProComm Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20

Ethernet Managemen t Modu le Problems . . . . . . . . . . . . . . . . . 5-21

Appendix A — Specifications

General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Environmental Spec ific ation s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Mechanical Specificatio ns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3

Hardware Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3

Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3

Special Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3

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Appendix B — RS-232 Cable Specs and Modem Use

RS-232 Cable Specification s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Modem Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

Appendix C — MIB Group s

MIB-II Grou p s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

3Com MIB G roups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2

Appendix D — Technical Support

On-line Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-1

Email Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2

World Wide Web Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2

Support from Your Netw ork Sup plier . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2

Support from 3Com . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-3

Returning Produ cts for Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-4

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

3Com Technical Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-5

Index

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Figures

Figure 1-1. EMMs in Network Config uration . . . . . . . . . . . . . . . . . . 1-3

Figure 1-2. Ethernet Management Module Communication in the

Figure 1-3. TriChannel Backplane Archit ectu re Assignments . . . . . . . 1-9

Figure 2-1. Installing the Ethernet Management Module . . . . . . . . . . 2-4

Figure 2-2. Installed EMM Connected to a Terminal . . . . . . . . . . . . . 2-5

Figure 2-3. Ethernet Management Module Faceplate . . . . . . . . . . . . 2-6

Figure 3-1. The 17-Slot ONline System Con cent rator . . . . . . . . . . . . 3-8

Figure 3-2. The 6-Slot ONline System Concentrat or . . . . . . . . . . . . . 3-9

Figure 3-3. The 6-Slot ONline System Concentrator with Integrated

Figure 3-4. Sample Remote Conn ec tio n . . . . . . . . . . . . . . . . . . . . . 3-23

Figure 5-1. Initial Installation Screen . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

Figure 5-2. ProComm Installatio n Scr een . . . . . . . . . . . . . . . . . . . . . 5-7

Figure 5-3. Post-ProComm Installation Screen . . . . . . . . . . . . . . . . . . 5-7

Figure 5-4. Initial UDK Installation Screen . . . . . . . . . . . . . . . . . . . . . 5-9

Figure 5-5. ProComm Status Line Screen . . . . . . . . . . . . . . . . . . . . 5-10

Figure 5-6. ProComm Menu Screen . . . . . . . . . . . . . . . . . . . . . . . . 5 -13

Figure 5-7. ProComm Downl oad Screen . . . . . . . . . . . . . . . . . . . . . 5-14

Figure 5-8. Exit ProComm Screen . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

Figure 5-9. UDK Completion Screen . . . . . . . . . . . . . . . . . . . . . . . . 5-15

Figure B-1. Management Interface RS-232 Connector and Cable

ONline System Concentrator . . . . . . . . . . . . . . . . . . . . . . 1-3

Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

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Tables

Table 1-1. Ethernet Backp lane Combination Reference Chart. . . . . 1-10

Table 1-2. Token Ring Backplane Com bination Reference

Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Table 1-3. FDDI Backplane Combination Reference Chart. . . . . . . . 1-11

Table 2-1. Interpretation of the Ethernet Management Module

LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Table 3-1. Quick Reference for Getting Started. . . . . . . . . . . . . . . . . 3-2

Table 3-2. EMM Terminal Parameter Options and

Factory Defaults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Table 4-1. Applying Power Suggestions . . . . . . . . . . . . . . . . . . . . . . 4-2

Table 4-2. EMM Terminal Interface Suggestions . . . . . . . . . . . . . . . . 4-3

Table 4-3. EMM Trap Message Fields . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Table 5-1. UDK Er ror Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20

Table 5-2. EMM Down load Error Message s . . . . . . . . . . . . . . . . . . 5-22

Table B-1. RS-232 Cable Gu idelin es . . . . . . . . . . . . . . . . . . . . . . . . . B-1

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How to Use This Guide

This guide presents the principal features of the 3Com ONline™ Ethernet Network Management Module (EMM) for version 4.0 software. It includes instructions for installing the EMM into the ONline System Concentrator and it also gives a physical description of the EMM, including the LEDs, Reset Button, and RS-232 serial port con nector on the mo dule faceplate.

Instructions are also provided for using the EMM to manage the concentrator through a terminal connected to the RS-232 serial port connector. The commands used to configure the EMM to manage the concentrator and modules are described in Chapter 3.

Troubleshootin g procedures that may help diagnose problem s during installation and d uring operation are provided in Chapter 4.

A complete set of alphabetized ONline management commands is provided in the ONline Management Commands Guide (17-00403). Each command is described in detail with examp les of its syntax, options, and use.

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Audience

This guide is intended for the following people at your site:

❑ Network manager or administrator ❑ Hardware installer

Structure of This Guide

This guide contains five ch apters, three append ices, and an index: Chapter 1 - Introduction – Presents the key features and management

functions of the EMM. Chapter 2, Unpacking a nd Installing the Module – Pr ovides illustrated

procedures for installing the EMM into the ONline System Concentrator. This chapter also describes the front panel in dic ators (LEDs), the Reset Button, and RS-232 serial port connector. It also explains how to connect a terminal to the EMM.

Chapter 3, Startup and Management Functions – Explains how to configure the EMM to manage an Ethernet network. These configurations include terminal settings, default system values, and configuring the EMM for communication with SNMP-based management systems. This chapter also describes how to monitor your Ethernet network using the SH O W commands.

Chapter 4, Troubleshooting – Provides help in isolating and correcting problems that may arise during installation and during normal operation.

Chapter 5, Software Download Instructions – Explains how to download new software code to the Flash EPROM in th e EMM.

Appendix A, Specifications – Provides tech nical specification s for the EMM, such as the electrical and environmental specifications.

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Appendix B, RS-232 Cable Specification and Modem Use –Describes the various RS-232 cable configurations that can be used to connect a device to the EMM serial port. This appendix also explains how a modem should be configured for connection to the EMM.

Appendix C, - MIB Groups – Lists the 3Com MIB groups and the MIB II groups that the EMM supports.

Appendix D, - Technical Support – Lists the various method s fo r contacting the 3Com technical support organization and for accessing other product support services.

Index

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Document Conventions

The following document conventions are used in this manual:

Convention Indicates Example

Courier text User input In the Agent Information Form,

System output After pressing the Apply

enter MIS in the New Contact field.

button, the system displays the message Transmi tt in g da ta .

Bold command string

Italic text in braces User-substituted

Capitalized text in plain brackets

Italics Text em phasis,

Path names Before you begin, read the

identifiers

Keyboard entry by the user

document titles

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

Use the following command to show port details:

SHOW PORT {

Type your password and press [ENTER].

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

slot

.all} VERBOSE

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Convention Indicates Example

Note: A Note. The

Caution: A Caution. A

Warning: A Warning. A

The ONline Ethernet Management Module

The EMM is a single-slot module designed to work with the 3Com ONline System Concentrators. The EMM provides connection to an IEEE 802.3 Ethernet Local Area Networ k (LAN ), enab ling you to fully manage and control your Ethernet network down to the port level. In addition, the EMM contains advanced monitoring and control capabilities which allow you to configure and check status on all Ethernet m odules.

Introduction 1 - 1

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The major features of the EMM include:

❑ Telnet support for remotely managing the EMM via inband

connection

❑ Inband network management via SNMP for local and remote

configuration cap abilities for all concentrators in th e network.

❑ Out-of-band network management via an RS-232 terminal connection

for local and remot e configuration capabilities for all concentrators on the netwo rk

❑ Dynamic network control and management to the module and port

level

❑ Flash PROM designed for quick upgrade to the newest version of

software using inband or out-of-band downloads

❑ Automatic detection of faults and failures ❑ Security features to prevent unauthorized use ❑ Continuous monitoring and reporting of key network statistics ❑ Support of the 3Com Tr iChannel Architecture, ONdemand

Port-Switching, and fault tolerance capabilities

Figure 1-1 shows a typi cal im plementation of EMMs.

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Figure 1-1. EMMs in Network Configuration

Theory of Operation

The EMM can be installed into any slot in the concentrator and communicates with all other modules in the concentrator via a dedicated control bus on the concentrator backplane as shown in Figure 1-2.

Figure 1-2. Ethernet Management Module Communication in the

ONline System Concentrator

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Like media modules installed in the ONline System Concentrator , the EMM is assigned to a network on the concentrator backplane. The configuration and fault-detection capability of the EMM is protocol-independent an d enables you to configure all Ethern et modules as well as Token Ring and FDDI modules. In addition, via the Control Bus, the EMM can configure and check status on all modules in the concentrator , even if they are assigned to different networks or are isolated.

If you have modules assigned to different Ether net networks in a concentrator, you should use multiple EMMs to track statistics on the individual networks. For configuration management, however, only one EMM in the concent rator can be the master EMM - all other EM Ms are considered slaves.

A slave EMM can collect statistics and listen to traffic on the network to which it is assigned. Since the slave does not have contro l of the Control Bus, it cannot configure modules or detect faults. The slave module will take over as master if the master EMM fails, thus providing fault tolerance for your concentrator management. The administrator assigns a mastership priority level between 1 and 10 to each EMM.

Since all EMMs are factory set with a priority level 10, the first EMM you install will automatically become the master for that concentrator . All other EMMs you install should have their mastership priority changed to a lower value so as not to conflict with the first EMM.

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Complete ONline Control

When you install an EMM into a concentrator for the first time and it becomes master , it automatically learns a nd saves the configurations of all existing modules and their ports. The EMM provides the following features that maximize security and minimize the risk of losing module and port configuration settings:

❑ All known modules installed in an ONline System Concentrator after

an EMM has been installed will have all ports disabled to prevent unapproved connections and will be set to the network setting of isolated. The one exception is when a module is unknown to the EMM, in whi ch case it will be configured off its dip switch settings.

❑ If you remove any module from the concentrator and then reinstall it,

or another module of the same type in the original slot, the EMM will automatically configure it as it was as of the last save.

❑ If you replace an EMM with another EMM, the new EMM

automatically learns the module and port configurations. However, you will need to configure the new EMM to the proper terminal and device settings.

ONline Ethernet Management Module Versions

There are three versions of the ONline Ethernet Management Module: Starter (5101M-MGTS), Basic (5101M-MGTB), and Advanced (5101M-MGTA). The following paragraphs explain the differences between these three versions.

The EMM Starter Version

The EMM Starter includes all of the functions of the Basic soft ware, with the following exception:

❑ Can only manage modules that are assigned to the same network as

the EMM

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The EMM Basic Version

The EMM Basic provides:

❑ Local inband softw are upgrades using TFT P (Trivial File Transfer

Protocol) in mai ntenance mode

❑ SNMP support ❑ Out-of-band software upgrade ❑ Modem support (up to 9600 baud) ❑ Master/slave network managem ent ❑ Automatic statistics reporting ❑ Telnet support for remotely managing the EMM via inband

connection

The EMM Advanced Version

The EMM Advanced includes all of the functions of the Basic software plus the following features:

❑ Local and remote inband software upgrades using TFTP ❑ Enhanced security through MA C address tracking per port ❑ Cross-module redundancy (ability to set port redundancy using

different modules )

❑ The ability to receive traps from othe r SNMP agents

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Network Management Access

The EMM provides several ways to access networ k management. For inband management, the EMM provid es built-in SNMP (Simple N et work Management Protocol) agent, the de facto industry standard for network management. The agent will let you manage EMMs through SNMP-based network management solutions.

For out-of-band management, you can connect an ASCII terminal to the RS-232 port on the module faceplate and manage the EMM using the command-lin e in terface. You also have the flexibility to use Telnet for inband management using the same extensive command-line interface.

The EMM also provides the Rem ote_login and Telnet features. Remote_login is based on the 3Com proprietary proto col, RCP (Remote Character Protocol). Telnet support is based on a fully compliant TCP /IP stack.

Network Management Functio ns

The EMM provides management and control capabilities in six major areas:

❑ Configurations - When logged in under the administrator password,

you can configure the EMM, Ethernet network, modules, ports, and terminal settings.

❑ Fault, Performance, and T raffic Statistics Monitoring - T ypical terminal

management systems only report statistics when you request them. Y ou can configure the EMM to continuously monitor and report key statistics by invoking the MONITOR command. The statistics on the screen are updated periodically to give a snapshot of the network.

❑ Security Control - The EMM provides two important security features

that prevent unauthorized access to devices on the network address-to-port security and a two-level password protection feature.

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❑ SNMP S up po r t - SNMP (Simple Network Management Protocol) is a

protocol defined by the Internet com munity. The EMM acts as an agent i n a n S NMP managed environment r e sponding t o S NMP requests and generating SNMP traps.

❑ Inband and Out-of-Band Download - The EMM provides both inband

and out-of-band dow nlo ad features. An inb and download is performed via TFTP (Trivial File Transfer Protoco l ). The out-o f-band download is performed using Xmodem software and a connection to the RS-232 serial port on the front panel of the EMM.

❑ Telnet Support - The T elnet command enables you to log in remotely

to any EMM on the network and manage it from a remote EMM. You can also manage an EMM from a workstation with Telnet support.

ONline Backp l ane Architec tu re

The 3Com unique backplane architecture provides you with the power and flexibility to create multiple Ethernet, Token Ring, FDDI networks in one ONline System Concentrator. This backplane architecture allows th e following networks to run in a single ONline System Conc en trator:

❑ three separate Ethernet networ ks and one isolated network ❑ seven backplane Token Ring networks and one isolated network ❑ four FDDI networks and one isolated network

Figure 1-3 illustrates how Ethernet, T oken Ring, and FDDI networks coexist on the concentrator backplane. Note in Figure 1-3 that Ethernet networks and paths correspond. That is, Ethernet_1 network is always allocated to Ethernet path 1, Ethernet_2 network is always allocated to Ethernet path 2, and Ethernet_3 network is always allocated to Ethernet path 3.

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This is not true for Token Ring and FDDI networks and paths. There are 7 available Token Ring networks and 15 Token Ring paths. For FDDI, there are 4 available FDDI networks and 8 FDDI paths. When you a s sign a module or port to a network, the master management module dynamically allocates the best possible path currently available for your configuration.

Following Figure 1-3 are T able 1-1, T able 1-2, and T able 1-3, which provide reference tables for configuring Ethernet, Token Ring, and FDDI networks in one concentrator . These tables define which networks paths are removed when certain network paths are used. Refer to these charts to determine the n um ber and types of different protocol combinations yo u can have in one concentrator.

Y ou may want to issue the SHOW NETWORK P A THS command before and after you configure networks to modules or ports to display which network paths are in use.

TR1 TR2

FDDI 1

TR7 TR8

FDDI 4

TR13 TR15 TR14

*TR12 overlays part of FDDI 6, but it does not affect the Ethernet 2 path.

TR3

FDDI 17

TR4 FDDI 2

TR9

FDDI 5

FDDI 18

TR5

TR10

TR6

FDDI 3

TR11 FDDI 6 TR12*

Ethernet 1

Ethern et 2

Ethernet 3

Figure 1-3. Tr iChannel Backplane Architecture Assignments

Introduction 1 - 9

ONline Backplane

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As shown in T able 1-1, Ethernet_3 is the best Ethernet network selection to use in a mixed protocol environment because it affects the least amount of Token Ring and FDDI network paths.

Table 1-1. Ethernet Backplane Combination Reference Chart

Ethern et Paths Token Ring Paths FDDI Paths

Ethernet 1 removes Token Ring 1

Token Ring 2 Token Ring 3

FDDI 1 FDDI 2

FDDI 3 Token Ring 4 Token Ring 5 Token Ring 6

Ethernet 2 removes Token Ring 7

Token Ring 8 Token Ring 9

FDDI 4

FDDI 5

FDDI 6 Token Ring 10 Token Ring 11

Ethernet 3 removes Token Ring 13

Token Ring 14

FDDI 7

FDDI 8 Token Ring 15

Table 1-2. Token Ring Backplane Combination Reference

Chart

Token Ring Paths Ethernet Paths FDDI Paths

Token Ring 1 removes Ethernet 1 FDDI 1 Token Ring 2 removes Ethernet 1 FDDI 1 Token Ring 3 removes Ethernet 1 FDDI 1 and FDDI 2

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Table 1-2. Token Ring Backplane Combination Reference

Chart (Continued)

Token Ring 4 removes Ethernet 1 FDDI 2 Token Ring 5 removes Ethernet 1 FDDI 2 and FDDI 3 Token Ring 6 removes Ethernet 1 FDDI 3 Token Ring 7 removes Ethernet 2 FDDI 4 Token Ring 8 removes Ethernet 2 FDDI 4 and FDDI 5 Token Ring 9 removes Ethernet 2 FDDI 5 Token Ring 10 removes Ethernet 2 FDDI 5 and FDDI 6 T oken Ring 11 removes Ethernet 2 FDDI 6 T oken Ring 12 removes FDDI 6 T oken Ring 13 removes Ethernet 3 T oken Ring 14 removes Ethernet 3 FDDI 8 Token Ring 15 removes Ethernet 3 FDDI 7 and FDDI 8

Table 1-3. FDDI Backplane Combination Reference Chart

FDDI Paths Ethernet Paths Token Ring Paths

FDDI 1 removes Ethernet 1 Token Ring 1

Token Ring 2 Token Ring 3

FDDI 2 removes Ethernet 1 Token Ring 3

Token Ring 4 Token Ring 5

FDDI 3 removes Ethernet 1 Token Ring 5

Token Ring 6

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Table 1-3. FDDI Backplane Combination Reference Chart

FDDI 4 removes Ethernet 2 Token Ring 7

FDDI 5 removes Ethernet 2 Token Ring 8

FDDI 6 removes Ethernet 2 Token Ring 10

FDDI 7 removes Ethernet 3 Token Ring 15 FDDI 8 removes Ethernet 3 Token Ring 14

Where To Go From Here

Token Ring 8

Token Ring 9 Token Ring 10

Token Ring 11 Token Ring 12

Token Ring 15

This chapter presented an overview of the ONline Ethernet Management Module and its co ntrol capabilities. The next chapter, Unpacking and Installing the Module, explains how you install the module into your concentrator.

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Unpacking and Installing the Module

This chapter describes the precautionary, unpacking, and installation procedures for the ONline Ethernet Man agement Module (EMM). It also describes the module's front panel LEDs, Reset Button, and RS-232 serial port connector . After you install the module, follow the steps in Chapter 3 to configure the module for proper operation.

Precautionary Procedures

Electrostatic discharge (ESD) can damage the static-sensitive devices on circuit boards. T o avoid this kind of damage, use the following precautions when han dling the EMM:

❑ Do not remove the board from its anti-static shielding bag until you

are ready to insert it into the concentrator.

❑ Use proper grounding techniques when inspecting and installing the

EMM. These techniques include using a foot strap and grounded mat or wearing a grounded static discharge wrist strap. An alternate method is to touch a grounded rack or other source of ground before you handle th e EMM.

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Unpacking Procedure

Use the following procedure when unpacking the EMM:

1. Verify that the EMM is the correct model by matching the model number listed on the side of the shipping carton to the model number you ordered (5101M-MGTB, 5101M-MGTA, or 5101M-MGTS).

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 anti-static bag, from the shipping carton.

3. Remove the module from the anti-static shielding bag and inspect it for damage. Always handle the m odule by the faceplate being careful not to tou ch the components.

4. If the module appears to be damaged, replace it in the anti-static shielding bag, return it to the shipping carton and contact your local supplier .

We suggest you keep the shipping carton and anti-static shielding bag in which your module was shipped in case you later want to repackage the module for storage or shipment.

We also suggest that you record the serial number of your EMM. A log for this and other information specific to your modules under the Slot Usage Chart in Appendix B of the ONline System Co ncentrator Installation and

Operation Guide.

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Installatio n Procedures

For a new installation where you have received a new ONline System Concentrator and all the modules, the following steps must be performed prior to installin g the EMM:

❑ Install the concentrator in its location (rack, table, etc.) referring to

the instructions in the ONline System Concentrator Installation and Operation Guide.

❑ Remove blank panels on the concentrators to expose empty slots for

the Controller Module, EMM, and ONline modules.

❑ Install the Con troller Module and ONlin e m odules into the board

guides at the top and bottom of the slots and slide them into the concentrator. Make sure the connectors are firmly seated in the backplane of the co ncentrator.

❑ Fasten the spring-loaded screws on the front panels of the modules

to the concentrator with your fingers (do not overtighten).

❑ Plug the power cord into an outlet and verify that all modules come

up in their default state. Optionally , press the LED Test button on the Controller Module to ver ify that all LEDs are functional.

Installing the EMM into an existing installation does not require you to power down the concentrator . The EMM, like all other ONline modules, has the ability to be “hot swapped,” meaning that you can install the module into any open slot and remove it with the concentrator in an operating state. Use the following procedure if you are installing the EMM into an existing installation.

1. Install the EMM into the board guides at the top and bottom of the empty slot and slide it into the concentrator as shown in Figure 2-1. Make sure the connector is firmly seated in the backplane of the concentrator.

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Wait for the Status LED and Master Mgt Module LED to light solid green. At this point the EMM will learn the default module and port settings for all modules installed in the concentrator.

Figure 2-1. Installing the Ethernet Management Module

2. Fasten the spring-loaded screws on the front panel of the EMM faceplate to the concentrator with your fingers (do not overtighten).

3. If a terminal (out-of-band) connection is desired, verify that the terminal meets the factory defaults of the EMM or you will not be able to communicate with the module. The default EMM settings are:

– 9600 baud – 8 data bits – No parity – 2 stop bits

4. Attach one end of an RS-232 cable to the RS-232 serial port connector on the front of the EMM . Loop the cable through the concentrator cable tray (if installed) and attach the other end to the RS-232 serial port connector on a terminal or personal computer as shown in Figure 2-2.

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Figure 2-2. Installed EMM Connected to a Terminal

The RS-232 cable can be a maximum of 50 ft. in length. There are several legal RS-232 cable configurations available depending on your installation. Refer to Appendix B for more information on the exact RS-232 cable that you need for your installation.

If you want to connect another type of device to the EMM, you can change the factory default terminal settings of the EMM as described at the beginning of Chapter 3.

Verifying Operation

This section explains how to v erify module functionality.

1. The Status LED on the m odule should light and t he Master Mgt Module LED should light if this is the master EMM (or the only management module in the con centrator).

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2. The following message should display on the terminal screen once the module is installed properly and the RS-232 connection is made:

The EMM Front Panel

The EMM has three LEDs on the front panel that indicate the status of the module, one button to reset the module, and one RS-232 serial port connector used to connect the EMM to a terminal or modem. Figure 2-3 shows the features of the EMM faceplate and T able 2-1 describes the LEDs.

Figure 2-3. Ethernet Management Module Faceplate

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T able 2-1. Interpretation of the Ethernet Management Module LEDs

LED Name Color State Indicates

Status Green Off Power off

On Power on Blinking Error

Master Mgt Module

Download in Progress

Green Off EMM is a slave

On EMM is a master

Yellow Off Not downloading

On Downloading n ew

software to EMM flash EPROM

Status LED

The Status LED displays a steady green glow to indicate that power is being provided to the EMM and that the EMM is working proper ly. This LED blinks when an error occurs during operation or if an error is found when diagnostics are performed during a reboot. Refer to Chapter 4, Troubleshootin g, for a description of the error codes.

Master Mgt Module LED

The Master Mgt Module LED displays a steady green glow if this EMM is the master management module in the concentrator. It also displays a green glow while a mastership election is in progress and during initial installation. The LED is off when the EMM is a slave.

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Download in Progress LED

The Download in Progress LED displays a steady yellow glow when software is being downloaded to the Flash EPROM on the EMM. See Chapter 5, Software Download Instructions, for details on downloading new software.

Note that you need the Firmware Distribution Kit3Com Firmware Distribution Kit (part number 5000-FDK) to initiate the download of new software provided in the Update Distribution Kit (part number 5101M-UDKx-x.xx) .

Reset Button

The Reset Button resets the EMM and executes self-test diagnostic routines (network traffic is not affected). You should press this button only w hen you suspect problems with the EMM. The Reset Button is recessed to prevent an accidental reset, yet you can access it with a pen tip or a small screwdriver.

When the EMM is reset, it will come up under the last saved configuration parameters. Pushing this button has the same effect as issuing the RESET DEVICE command with one exception. Pushing the Reset button will cause any unsaved changes to be lost. Issuing the RESET command on an EMM after changes have been made but not saved causes a messa ge to display warning you that unsaved changes exist. The RESET command aborts and cannot be executed until the SAVE command is issued.

RS-232 Serial Port

The 25-pin (DB-25) RS-232 serial port is a DTE male connector used to connect the EMM to a terminal or modem so you can enter management commands and do wnload new software.

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Where to go From Here

This chapter covered installation procedures for installing the EMM into a concentrator. Also provided were descriptions of the EMM front panel LEDs, RS-232 port, and the Reset Button. Now you are ready to set up your terminal for c om m unication wit h the EMM and configure the EMM to begin managing your Ethernet network as explained in Chapter 3. If you encountered any problems with installing the module or the operation of the LEDs, refer to Chapter 4, Troubleshooting.

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Startup and Management Functions

This chapter describes how to configure the EMM once you have completed the installation procedures outlined in Chapter 2. Included in this chapter is a quick reference chart for getting started. The remainder of this chapter is organized into the following sections:

❑ Configuring the Terminal ❑ Config uring the EMM ❑ Configuring SNMP Values ❑ Configuring Modules and Ports ❑ Configuring Address-to-Port Security ❑ Establishing Remote Logins ❑ Monito ring With SHOW Commands

The commands necessary to configure the EMM for operation are provided in this chapter. The EMM supports similar command conventions and keystroke functions as other ONline management d ev ices. Refer to th e ONline Management Commands Guide (17-00403) for complete information on all ONline management commands and command conventions.

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Quick Reference for Getting Started

Table 3-1 outlines the steps and commands necessary to configure your EMM. The procedures and command examples are explained further throughout this chapter. If you are familiar with these instructions, you may want to use this table as a checklist.

Table 3-1. Quick Reference for Getting Started

Procedure Command

1. Configure your terminal to default EMM communication settings

❑ Configure EMM Te rminal

Settings

2. Configure the EMM

❑ Concentrator Configuration

❑ Device Configuration (EMM)

SNMP Configuration SET COMMUNITY

Refer to your terminal v endor's documentation

SET TERMINAL HANGUP SET TERMINAL PROMPT SET TERMINAL TIMEO UT

SET CONCENTRATOR PLATFORM SET CLOCK

SET DEVICE CONTACT SET DEVICE DIAGNOSTICS SET DEVICE LOCA TION SET DEVICE NAME SET DEVICE P ASSWORD

SET DEVICE DEFAULT_GATEWAY SET DEVICE IP_ADDRESS SET DEVI CE SUB NET_MASK SETALERT SET DEVICE TRAP_RECEIVE

(Advanced EMM only)

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Table 3-1. Quick Reference for Getting Started (C ontinued)

Procedure Command

3. Module Configuration SET MODULE

MASTERSHIP_PRIORITY SET MODU LE NET WORK SET MODULE RING_SPEED

4. Port Configuration SET PORT

SET PORT MODE SET SECURITY PORT (Advanced

EMM only)

5. Save All Configuration Values SA VE ALL

6. Monitor the Network and Device with SHOW commands

❑ Device Information

Module Information Port Information Concentrator Information Counter Statistics

❑ EMM Traffic Statistics

SHOW DEVICE SHOW MODULE SHOW PORT SHOW CONCENTRATOR SHOW COUNTER MODULE SHOW COUNTER PORT

SHOW COUNTER NETWORK

Saving and Reverting Config ura tio n Values

When you make configuration changes using the SET c ommand, t hey ar e effective immediately but are not saved permanently. To s ave comma nds permanently, use the SA VE command. Only saved values are in effect upon reset of the EMM or the concentrator. You can issue the SAVE ALL command to save all current concentrator configuration values previously established by the SET command for all cat egories. Or you may issue a specific SAVE command to save the configurations of only one group.

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Use the REVERT command to restore the c onfiguration values in effect at the time of the last save. Any unsaved changes made using th e S ET command are lost. The REVERT and SAVE commands support the same configuration groups as defined below.

❑ Alert ❑ All ❑ Community ❑ Concentrator ❑ Device ❑ Security ❑ Module_Port ❑ Te rminal ❑ TFTP

Configuring the Terminal

The terminal that attaches to the serial port on the EMM must be configured to the same parameter settings as the EMM so the terminal and EMM can communicate. These settings include baud rate, data bits, parity , and stop bits. Initially , the terminal settings must match the factory default settings of the EMM as specified in Table 3-2 . Consult the user's guide shipped with your computer terminal for instructions on how to set these values

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Table 3-2. EMM Terminal Parameter Options and Factory Defaults

Parameter Options Factory Defa ult

Baud 300, 1200, 2400, 4800, 9600 9600 Data_bits 7 or 8 8 Parity odd, even, or none none Stop_bits 1 or 2 2

Once you have configured your terminal to match the factory defaults of the EMM, press [ENTER] and the following greeting is displayed:

Press [ENTER] again and the EMM prompts you for a password. Enter the password and then press [ENTER] (the default password is a null string). The following greeting and the default management prompt is displayed:

Welcome to system administrator service on ONline. ONline>

You are now logged in as the administrator with full access to all commands. Once terminal setti ngs are complete, yo u can configure the ONline System Concentrator , the newly installed EMM, and all other ONline modules residing in the concentrator.

When you are done using the EMM, save all changes, and then log out of the system using the LOGOUT co mmand. Provided you have saved all changes before issuing this command, you are logged out of the system and the following message displays:

ONline> logout [ENTER] Bye

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If you have made configuration changes and you have not saved those changes, the LOGOUT command prom pts you as follows:

ONline> logout [ENTER] WARNING: Save unsaved changes before logout.

You must either SAVE or REVERT any changes you made to the system before you can successfully log out. Re-issue the LOGOUT command to log out of the system once you have saved or reverted.

Optional Termina l Settings

The EMM provides three additional terminal management commands that allow you to customize your term inal connection:

❑ terminal hangup ❑ terminal prompt ❑ terminal timeout v alue

These terminal settings are discussed in the following paragraphs. Also included in this section is the procedure to change the terminal's setting if you need to connect another device to the EMM that runs at a slower baud rate or different parity or data bits values than the factory settings.

Setting Terminal Hangup

If you use a modem connection to the EMM, you may want to use the SET TERMINAL HANGUP command to specify that the modem automatically hang up the connection to the terminal when you log out of the EMM. The factory default is disable, which means the modem will not automatically hang up when y ou log out of the connection. If you fail to hang up the modem connection, an unautho rized user may pick up the last lo gin session.

Use the SET TERMINAL HANGUP command as shown to automatically hang up the modem connection once you log out of the EMM:

ONline> set terminal hangup enable [ENTER]

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Setting Terminal Prompt

It is a good idea to customize the management prompt for each EMM. This will remind you of the EMM to which you are connected in the case where you are logged into a remote EMM. The d efault management prompt is “ONline>” for all Hems. Use the SET TERMINAL PROMPT command as shown to customize your management prompt. 3Com recommends that you use the same identification to specify the terminal prompt and device name for your EMM.

ONline> set terminal prompt NEW PROMPT> [ENTER]

Setting Terminal Timeout

For optimum security, you should set the terminal timeout value to specify the amount o f time you want yo ur terminal to remain active during the absence of any keyboard activity. This feature is useful for keeping unauthorized users off the system if you leave your terminal without logging off. Once timeout has been set, the terminal will automatically log you off the system if there is no terminal (keyboard) activity for the period of time you have specified.

The default timeout value is 0, which means that no timeout has been set you will never be logged off automatically. Use the SET TERMINAL TIMEOUT command as shown to set the timeou t period. Note that the value specified is in minutes.

ONline> set terminal timeout 10 [ENTER]

Configuring the EMM

This section describes the commands necessary for startup and management of your concentrator and EMM. You need to define the following setting s for your EMM :

❑ Passwords ❑ EMM Name

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❑ Diagnostics ❑ Contact Nam e and Location

Use the following command to set the EMM' s internal clock .

ONline> set clock 5:53 93/03/6 Saturday [ENTER]

Use the following command to define the concentrator platform for your EMM.

ONline> set concentrator platform {5006C} [ENTER]

{5017C} {5006C-FT}

Note: Use the 5006C designation for all 6-slot concentrators.

Figure 3-1, Figure 3-2, and Figure 3-3 show an ONline 17-Slot System Concentrator, an ONline 6-Slot System Concentrator , and an ONline 6-Slot System Concentrator with Integrated Controller , respectively . As the names imply , there are 17 available slots (numbered from left to right) on the large concentrator and 6 slots (numbered top to bottom) on the smaller concentrators.

SLOT

2 3 4 5 6 7

8910 11

12 13 141516 17

Figure 3-1. The 17-Slot ONline System Concentrator

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1 2 3 4 5 6

Figure 3-2. The 6-Slot ONline System Concentrator

1 2

3 4

5 6

Figure 3-3. The 6-Slot ONlin e System Concentrator w ith Integrated

Controller

Setting Device Password

The EMM provides two levels of password protection to protect against unauthorized access to the EMM console and possible network tampering.

❑ Administrator. The administrator password provide s acce ss to all

EMM commands.

❑ User. The user password allows limited access to EMM commands

enabling status and configuration displays only.

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Both the administrator and the user password can be a maximum of 15 characters in length. Note that you must enter a password within 10 seconds following the display of the Password: prompt, or the terminal will display “Timeout.” If this happen s, press [CTRL] [R] to redisplay the SET DEVICE P ASSWORD command. The new passwords you set go into effect immediately , but you must issue the SAVE DEVICE (or SAVE ALL) command to save the new passwords.

Establishing the Administrator Password

Use the following command to establish the administrator password.

ONline> set device password administrator [ENTER] Enter cu rrent administrator password: {old password} [ENTER]

New pass word: {new password} [ENTER] Verify: {new password} [ENTER]

Note: For security purposes, the values you enter in the password

fields are not displayed on the screen.

Y ou do not need to use the new administrator password until the next time you log in to the EMM.

As EMM administrator, you can conf igure the following:

❑ Device - This includes naming the EMM, establishing passwords,

setting mastership priority , setting SNMP Values, as well as providing location and contact information.

❑ Modules - The EMM can assign each module in the ONline System

Concentrator to one of the available networ ks or i solate it (not connect that module to any network). Reconfiguration of network assignments can be done at any time, witho ut removing a module from the concentrator or disrupting other configuration settings. If a module is removed from the concentrator slot and replaced with the same module ty pe in the same slot, the new module will be configured to the settings of the previous module installed in that slot.

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❑ Ports - The EMM can assign each port on a per-port switching ONline

module to one of the available networks. Reconfiguration of network assignments can be done at any time, without removing the module from the concentrator or disrupting other configuration settings.

❑ Override Control - The EMM can overr ide all ONline module d ip

switch set ting s .

❑ Terminal - EMM terminal configuration values can be modified to

meet your particular application requirements.

❑ Security - The EMM address-to-port security feature enables you to

assign a maximum of four MAC addresses to a port. Whenever a device assignment is changed, the EMM is alerted to the change in MAC Address, sends a trap to the designated workstation, and automatically disables that port.

❑ Fault Tolerance - The EMM can assign the ports of some modules

(e.g., Fiber Module, 10BASE-T Module) as redundant pairs in order to provide fault-toleran t links between concentrators or between devices (when using Fault-To lerant Transceivers).

Establishing the User Password

Use the following command to establish a user p assword. Note that you must be logged in as administrator to change the user password. The default user password is [ENTER].

ONline> set device passw ord user [ENTER] Enter current administrator password: {administra tor password} [ENTER]

New passwo rd: {new use r p assword} [ENTER] Verify: {new use r password} [ENTER]

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Assigning an EMM Name

To make identification of your EMMs easier, 3Com recommends that you assign a unique name to each EMM. Y ou can then use this name instead of the IP address or MAC address to refer to a particular EMM. Use the SET DEVI CE NAME co mmand a s shown t o ass ign a un ique na me to yo ur EMM. The EMM name can be a maximum of 31 characters.

ONline> set device name EMM3 [ENTER]

3Com recommen ds that you use the same identification to specify the terminal prompt an d the device name for your EMM.

Setting Device Diagnostics

When the EMM is reset (or rebooted) using the factory default settings, the module performs a full diagnostic check of itself and t hen sets all the modules to the approp riate settings. You have the option to disable the diagnostics if you want the EMM to boot up faster. Use the SET DEVICE DIAGNOSTICS command as shown to bypass the diagnostics.

ONline> set device diagnostics disable [ENTER]

Assigning a Contact Name and Location

The EMM enables you to enter the name of an appropriate service contact and the concentrator location. Use the SET DEVICE LOCATION and SET DEVICE CONT ACT commands as shown to identify the location of the EMM and the name of the person responsible for EMM operation. These commands allow you to enter one line of free format text up to 78 alphanumeric characters in length. Note that you must enter the line of text within 15 seconds of receiving the prompt or the com m and will timeout.

ONline> set device location [ENTER] ONline> set device contact [ENTER]

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Configuring SNMP Values

SNMP (Simple Network Management Protocol) is a protocol defined by the Internet co m munity. All TCP/IP-ty pe traffic is encapsulated in Ethernet frames. The EMM supports SNMP by responding to SNMP requests and generating SNMP traps. An EMM acts as an agent in an SNMP- managed environment, enabling you to configure your EMM and all modules in the concentrator through SNMP. It has a community table that can contain up to 10 IP addresses.

An IP Address entry in a community table may have one of the following attributes assigned:

– read-only allows the specified IP address to re ad SNMP

variables via the SNMP GET command

– read-write allows the specified IP address to read and

write SNMP variables via the SNMP GET and SNMP SET commands, respectively

– trap sends a trap to the specified IP address when an

SNMP variable is changed

– read-trap allows the specified IP address to read SNMP

variables and receive traps

– all (rea d-write, and trap) allows the specified IP address

to read SNMP variables, change the variables via the SNMP SET command and receive traps wh enever an SNMP variable is changed.

– oldtrap access means that the IP Address you specify will

receive alerts from the EMM based on the 3Com MIB I.

– read_oldtrap access means that the IP Address you

specify can display information about the EMM and it will receive alerts based on the 3Com MIB I.

– oldall access means that the IP Address you specify has

read_write and trap access to the EMM based on the 3Com MIB I.

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Note: When you use the IP Address entry of all, you cannot use

trap, read_trap, or all access.

The three “old” trap options should be used when sending traps to workstations using the 3Com MIB I variables. All the non-”old" trap options should be used when sending traps to workstations using the 3Com MIB II variables.

An EMM sends alarms to those IP addresses in the community table having either trap, read-trap, or all attributes. The EMM and all modules in the concentrator can be configured via SNMP from stations having IP addresses with either read-write or all attributes. Finally, the EMM can be monitored from stations having IP addresses with read-only , read-write, read-trap, or all attributes.

An EMM can receive SNMP alarm s from SNMP devices on the net work (including its elf) once the EMM's IP address and accompanying attributes have been added to the community table of the SNMP device generating the alarms, and the SET ALERT feature is enabled.

For example, if a major fault co ndition causes a port to be disabled, an SNMP alarm is generated and displays to the terminal or workstation. This feature enables you to analyze network information simply by accessing a single EMM instead of having to be at the network management workstation.

If you plan to manage your concentrator through an SNMP workstation, you must set the following attributes for th e EMM:

❑ IP Address ❑ Community Table ❑ Alerts ❑ Subnetwork Mask ❑ Trap Receive ❑ Default Gateway

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Assigning IP Addresses

T o run SNMP properly , every device on your network must have a unique IP address. Use the SET DEVICE IP_ADDRESS command as shown to assign an IP address for the EMM on network 1. Note that you can set separate IP addresses for each of the ind ividual networks on the concentrator backplane.

ONline> set device ip_address 195.36.58.27 network_1 [ENTER]

Creating a Community Table

The community table defines which SNMP stations on the network can access information from the EMM and which station(s) will receive a trap from the EMM when the EMM detects an error . For example, the following command adds a community name of NCS with IP Address 195.36.58.217 to have read_write access:

ONline> set community NCS 195.36.58.217 read_write [ENTER]

Note that community entry names are case-sensitive. For example NCS and ncs are different community names. Use the SHOW COMMU NI TY

command to view existing community entries.

Configuring the Alert Setting

The SET ALERT command enables or disables the feature used to send an alert to the management workstation. The following command enables the alert feature. Therefore, when a configuration chan ge i s mad e to the concentrator via SNMP, an alert will be sent to the management workstation.

ONline> set alert change enable [ENTER]

Refer to the SET ALERT command in the ONline Management Commands Guide for information on the different types of alerts available through this

command.

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Setting a Subnetwork Mask

The subnetwork mask is specific to each type of Internet class. Generally, the subnetwork mask is a group of common characters appearing on the left side of an IP Address (called the Network ID), while the host address is the group of unique characters appearing on the right side of an IP Address. For example, to set the subnetwork mask for a class C address without subnetworks, enter the following command:

ONline> set device subnet_mask FF.FF.FF.00 all [ENTER]

The subnetwork mask for a class B device without subnetworks would be set using the following command:

ONline> set device subnet_mask FF.FF.0.0 ne twork_1 [ENTER]

Note that you can set separate subnetwork masks for each of the individual networks on the co ncentrator backplane, or the same subnetwor k mask for all of the networks on the concentrator backplane.

Defining the Default Gateway

The default gateway is the IP Address of the gateway that receives and forwards packets whose addresses are unknown to the local network. The default gateway is useful when sending EMM alert packets to a management workstation on a different network. For example, the following command specifies that the gateway with address 195.3.6.58 is to become the default gateway:

ONline> set device default_gateway 195.3.6.58 all [ENTER]

Note that you can set separate default gateways for each of the individual networks on the concentrator backplane, or the same default gateway for all of the networks on t he concentrator backplane.

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Enabling Trap Receiv e

The Advanced version of EMM software provides you wi th the ability to set the EMM as a trap receiver . As a trap r eceiver , the EMM receives traps from other SNMP devices that have the EMM's IP address in their community table.

Use the following command to enable an EMM to function as the trap receiver for other SNMP devices on the network.

ONline> set device trap_receive enable [ENTER]

Note: You must add the EMM's IP Address to a device's

community table in order for that device to be able to send traps to the EMM.

Configuring Modules and Ports

This section describes how to assign the EMM and media modules to an Ethernet network and how to configu re ports. Also discussed is the importance of settin g the appropriate m astership priority l evel for your EMM. Appendix B of the ONline System Concentrator Installation and Operation Guide provides a chart to r ecord the values you se t for modules in your concentrator.

Assigning Module Networks

Modules assigned to the same network form a segment. Modules assigned to different networks cannot communicate with each other unless the networks are bridged. All ONline modules, except the Fau lt-Tolerant Controller Module and the Token Ring MAU Module can be assigned to a network. The Controller Module does not require a network assignment as it only connects to th e control bus and the Token Ring MAU M odule is connected through its trunk or Ring In/Ring Out ports.

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If you isolate a module, the isol ated module cannot send or receive any traffic from other modules in the concentrator. Initially, all ONline modules are factory-set to network 1, but will come up isolated if a managem e nt module is installed in the concentrator.

Use the following command to assign the Ethernet module in slot 7 to network ethernet_1:

ONline> set module 7 network ethernet_1 [ENTER]

Assigning Module Master ship Priority

All ONline management modules are shipped from the factory with a mastership priority level of 10. Ten is the highest priority. When multiple management modules reside in the same concentrator, the SET MODULE MASTERSHIP_PRIORITY command enables you to establish one of the modules as master management module and all other modules as slaves.

An EMM master manages the network to which it is assigned, controls all configuration, and supplies all fault-detection capabilities for the ent ire concentrator. A slave management module can only listen to its assigned network's activity. Both master and slaves can collect statistics on only one network at a time .

The first EMM you place in a concentrator should main tain the default mastership priority level of 10. Once installed, the priority levels of all other EMMs should be changed to a different mastership priority l evel.

Use the following command to set the EMM in slot 3 to mastership priority 10:

ONline> set module 3 mastership_priority 10 [ENTER]

Once mastership priorities are assigned, you must issue the RESET MASTERSHIP command to initiate an election. During an election, the management module with the highest assigned mastership priority becomes the master . The new mastership setting is in effect immediately, but you must use the SAVE MODULE_PORT command t o save this priority permanently.

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Note: When you power up a concentrator in which more than

one management modules is set to priority level 10, one management module is randomly chosen as master. 3Com recommends that you assign priority level 10 to only one management m odule in the concentrator.

Setting Port Mode

Use the SET PORT command to enable port 1 on the module in slot 3:

ONline> set port 3.1 mode enable [ENTER]

Setting Port Network

Use the SET PORT NETWORK command to assign a port to a specific network. This command applies to 3Com modules (e.g., the ONline Ethernet Bridge Module) where individual ports are networ k-selectable. This example assigns port 1 on the module in slot 7 to network ethernet_3.

ONline > set por t 7.1 netwo rk eth erne t_3 [EN TER]

Setting Redundant Ports

Use the SET PORT MODE REDUNDANT command as shown to set redundancy between port 1 on the module in slot 5 to port 2 on t he module in slot 7.

ONlin e> set port 5.1 mode redund ant 7.2 [ ENTER]

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Configuring Address-to-Port Security

The Advanced EMM provides address-to-port security which enables you to assign a maximum of four MAC Addresses to individual ports in y our network. This allows the EMM to detect a change in the MAC Address of a station connected to a port whenever a different device is connected to that port. When a master EMM detects such an address change, it disables the port to preserve network security, and sends a trap to all stations with trap or all access in its community tab le.

A slave EMM (Advanced) can also detect a change in a port's MAC address. The slave EMM will send a trap to all stations in its community table, however, it cannot disable the port. Once you are alerted to the trap (displayed on the EMM console or workstation), you must issue the SET PORT MODE DISABLE command to disable the port.

Once you have determined and rectified the in truding station, you must issue the SET PORT MODE ENABLE command to re-enable the port.

Note: All versions of the EMM (i.e., Starter, Basic, Advanced) are

capable of managing the ONline 10BASE-T Security Module. However , only the Advanced EMM supports management security features. Therefore, when you use a Starter or Basic EMM to issue a security command using the 'all' option, the EMM scans the concentrator for Security Modules and initiates the command on Security modules only.

When you use an Advanced EMM to issue a security command using the 'all' option, the EMM will initiate the command on all Ethernet modules that support security.

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To implement port security , assign a MAC Address to a given port before you enable the security feature for that port.

Issue the following command to assign a MAC A ddress to port 3 on the module in slot 6:

ONline> set security port 6.3 mac_address 08-00-8f-12 -c0-09 [ENTER ]

Use the following command to enable the security feature for all ports on the module in slot 7. Prior to enabling the security feature, you must already have assigned a MAC Address to each port:

ONline> set security port 7.all mode enable [ENTER]

Use the SHOW SECURITY PORT command to display the MAC address and security setting for a specific module and port, for all ports, or for all port's of a specific module.

The following example displays security settings for all of the ports on the Fiber Modul e in slot 16.

ONline> show security port 3.all verbose [ENTER] Security Display for Module 5104M- FB in Slot 3: Port

16.01 ENABLED 08-00-8f-1b-0b-ad ETHERNET_1

16.02 ENABLED 08-00-8f-3c-c6-1e ETHERNET_1

16.03 DISABLED 08-00-8f-00-0e-c6 ETHERNET_1

16.04 DISABLED 08-00-8f-00-0e-2e ETHERNET_1

Mode MAC Addresses Genera l Information

Managing Secur ity with EMM Master and Sla ves

When managing security in Ethernet modules (other than the 5112M-TPLS Security Module), 3Com recommends that all security configuration changes to an Ethernet module only be issued through the EMM (master or slave) that is managing the network to which that module is assigned. This eliminates the possibility of having two different security configurations for one module stored in two EMMs. (This consideration does not apply to the Security Module becau se only a master EMM is capable of managing it.)

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By followin g this guideline, you will avoid having secu rity configurati on information restored incorrectly in the unlikely event both the master EMM and concentrator power fail concurrently, with at least one slave EMM in the concentrator . In this scenario, the slave will power up and become master, and will configure a module's security settings according to the information stored in its memory. This information may be different than the previous master EMM's information if you made security configuration changes using the slave rather than the master.

Establishin g Remo te Logins

The TELNET command and the REMOTE_LOGIN command enable you to log in remotely to any EMM on the network, and to manage the network remotely (from a terminal attached to a remote EMM, or from a workstation with Telnet support). You can manage an EMM across any number of bridges and routers.

You must be lo gged into the local concentrator before you can issue the TELNET command or the REMOTE_LO GIN command. Once you are connected to the remote EMM, you must enter that EMM's password. Then, all the commands you issue are for that EMM and are identical to those issued under a local login.

As shown in Figure 3-2, once you are connected to the EMM in Concentrator C, you can remotely log in and manage the EMMs in Concentrators A and B.

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Concentrator A

EMM IP Address 1.2.3.4

Concentrator B

Concentrator C

Dial-in Modem

RS-232 Link

Figure 3-4. Sample Remote Connection

Dial-in Modem

Use the TELNET command and specify the IP Address of the re mote device to which you want to connect.

ONline> telnet 127.3.6.58 [ENTER]

Note that you are only allowed on e Telnet login session per EMM. Therefore, it is not possible to be logged into Concentrator A and Concentrator B (in Figure 3-2) simultaneously.

Use the REMOTE_LOGIN command and specify the EMM name, IP address or MAC address of the remote EMM to which you want to connect.

ONline> remote_login 127.3.6.58 [ENTER]

Refer to the ONline Management Commands Guide for a complete description of the TELNET and REMOTE_LOGIN commands.

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Logging Out From a Remote Session

When you no longer need to be connected to a remote device, enter the LOGOUT command. This command disconnects the remote connection and reconnects the session with the local EMM. Once this is done, the local management prompt returns to the local screen.

If TIMEOUT has been set for the remote EMM and the time runs out, you will be logged out of the remote EMM and returned to the local EMM. Unsaved changes are still in effect, but they will be lost if the EMM is reset. To save these changes, re-establish connection to the EMM and issue the SAVE comman d.

Monitoring With SHOW Commands

The EMM enables you to display device (EMM), module, port, and concentrator configuration settings using the SHOW commands.

Showing Device Information

Use the SHOW DEVIC E command to view the current EMM information.

ONline> show device [ENTER] 3Com Advanced Ethernet Management Module (5101M-MGTA)

v4.00.0 AgentOS SNMP Name: ONline

Location: Wiring Closet 3 For assi stance contact: Network Administrator

Boot EPROM Version: v3.2 Serial Number: 850836 Restarts: 7 Flash EPROM Version: v4.00-A Service Date: 93/06/16

Network

1 * 151.104.002.205 FF.FF.00.00 151.104.002.001 2 151.104.006.214 FF.FF.00.00 151.104.006.001 3 151.104.006.214 FF.FF.00.00 151.104.006.001

IP Address Subnet Mask De fault Ga tew ay

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MAC Address: 08-00-8F-10-6B-B3 Dip Configuration: DISABLED Diagnostics: ENABLED Trap Re ceive: ENABLED

Showing Module Information

Use the SHOW MODULE ALL command to view information about all of the module s currently installed in the concentrator:

ONline > show module all [ENTER ] Slot

01 5000M-RCTL xx N/A Active Red undant Control ler 03 5104M-FBP xx ETHERNET_1 05 5108M-TP xx ISOLATED *15 5101M-MGT xx ETHERNET_1 Master Management Module

In this example, slot 1 contains the Controller Modu le, slot 3 co ntains a Fiber Module on network 1, slot 5 contains a 10BASE-T Module that is isolated from the backplane networks, and slot 15 contains a master EMM on network 1.

For additional information about a module, issue the SHOW MODULE VERBOSE command. The example belo w displays more detailed information about the EMM in slo t 15.

ONline> show module 15 verbose [ENTER] Slot

*15 5101M-MGT xx ETHERNET_1 Master Management Module

Module Version Network General Information

Module Version Net work Genera l I nf orm a ti on

5101M- MGT : ONline Ethern et Ma na g eme nt Module

Master shi p_ p rio ri t y: 10 Statio n A ddr es s : 08-00-8F-10- 6B - B3

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Showing Port Information

The EMM enables you to display the status of all module ports. Use the SHOW PORT command to display the mode and status of one port or all ports. Use the VERBOSE option as shown to display detailed information about a specific port.

ONline > show port 16.1 verbose [ENTER] Port Display for Module 5104M-FBP: Port

16.01 DISABLED LINK FAILURE ETHERNET_1 Port Alert Filter: DISABLED

Port Connector: FIBER Mode Dip Setting: ENABLED

Issue the SHOW PORT ALL command to display information for all ports on a four-port Fiber Module instal led in slot 3.

ONline> show port 3.all [ENTER] Port Display for Module 5104M-FBP: Port

03.01 ENABLED OKAY ETHERNET_3

03.02 ENABLED LINK FAILURE ETHERNET_3 Port is down

03.03 ENABLED OKAY ETHERNET_3

03.04 ENABLED OKAY ETHERNET_3

Mode Status Network General Information

Mode Status Network General In formation

Showing Concentrator Information

The SHOW CONC ENTRATOR command reports the status of the primary and backup power supplies and temperature status for that concentrator.

ONline> show concentrator [ENTER]

Concentrator Information: Concentrator Type: 5017C Primary power supply status: NORMAL

Backup power supply status: NORMAL Temperature sensor status: NORMAL

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Showing Counter Statistics

Once the EMM is assigned to a network, it continuously records and updates traffic and error statistics on all Ethernet stations, ports, and the network to which it is assigned. The SHOW COUNTER command can be issued for a module, port, or network.

Issue the SHOW COUNTER command to display the total traffic and err or statistics recorded since either a module or port was first installed, or since the last time the counters were cleared (using the CLEAR COUNTER command).

Use the SHOW COUNTER MODULE command as shown to display traffic and error statistics for the mod ule in slot 3.

ONline > show counter module 3 [ENTER] Non-zero counters for network ETHERNET_1 on 09 Aug 93: Slot Frames Bcast CRC Err AlignErr Collisions

Time Octets Mcast TooLongErr Remote –––––– ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

3 1500 500 0 162 3

18:17: 12 9000 1325 0

Use the SHOW COUNTER PORT comm and as shown t o report tra ffic and error statistics for the ports on m odule 3.

ONline > show counter port 3.all [ENTER] Non-zero counters for network ETHERNET_1 on 09 Aug 93: Slot.P ort Frames Bcast CRC Err AlignErr Collisions

Time Octets Mcast TooLongErr Remote

LastSourceAddr Changes LastErrorAddr

––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

3.1 1200 350 0 12 1

18:16:28 8600 125 0

08-34-8e-41-20-50 13 08-12-03-3e-74-06

3.2 150 75 0 75 1

18:16:28 200 600 0

08-04-23-15-10-67 4 08-40-65-8e-30-32

3.3 150 75 0 75 1

18:16:28 200 600 0

08-75-34-05-30-8d 7 08-35-46-75-60-32

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Use the SHOW COUNT E R NETWORK command as shown to report traffic and error statistics for the network to which the EMM i s assigned .

ONline > show counter network [ENTER] Non-zero counters for network ETHERNET_1 on 9 Aug 93: Network Frames Bcast CRC Err AlignErr Collisions

Time Octets Mcast TooLongErr Remote/Local –––––– –––––––––––––––––––––––––––––––––––––––––––––––––––––––– ETHERNET_1 928 21 0 1 16502 13:24:47 74129 129 0 51

Using the MONITOR Command

The EMM can be set to continuously monitor and report key network statistics by invoking the MONITOR command. The statistics on the screen are updated periodically to give you a snapshot of the network activity . The information displayed by the MO NITOR command is current, rather than cumulative.

Use the MONITOR command to periodically report current net work statistics for the EMM (the frequency of reporting is determined by the time, expressed in minutes, that you request). Note that the MON ITO R command report s the s am e information as the SHO W COUNTER NETWORK comma nd except that the system reports on ly on the events occurring for the time you specify.

Where To Go From Here

This chapter described how to configure your EMM to suit your specific network requirements, as well as how to display information about your EMM, ONline modules and ports, and the ONline System Concentrator in which the modules are installed. The next chapter, Troubling, provides troubleshooting suggestions for isolating and correcting problems that may arise during the installation proce ss and normal operations of the ONline Ethernet Managem ent Module.

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Troubleshooting

This chapter provides help in isolating and correcting problem s that may arise during the installation process and normal operations of the ONline Ethernet Management Module (EMM). It is divided into th e following sections:

❑ Applying Power ❑ EMM and Terminal Interface ❑ EMM Trap and Error Messages ❑ Technical Assistance ❑ EMM Network Impact

Applying Power

Under normal conditions, when you install the EMM, the Status LED and the Mastership LED turns on. The Mastership LED remains on if the EMM is elected master . T able 4-1 lists some of the common problems that may arise when installing your EMM, and th eir solutions

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Table 4-1. Applying Power Suggestions

Problem Troubleshooting Suggestions

Power is on, but the Status LED does not light.

The Status LED is blinking, failing diagnostics.

Press the LED check button on the Controller Module to verify that the LED is not burned out. All the LEDs should light.

Verify that the EMM is installed correctly by following the installation instructions in Chapter 2.

Try the EMM in another slot in the concentrator.

Press the reset button on the EMM. If the LED still does not light, the

software on the Flash EPROM may be corrupted, Try downloading a new copy of the software as described in Chapter 5.

If downloading software does not solve the problem, call your supplier for assistance.

Try the suggestions for th e previous problem.

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Table 4-1. Applying Power Suggestions (Continued)

Problem Troubleshooting Suggestions

Master Mgt LED not lit. Check if another EMM in the

EMM and Terminal Interface

Follow the directions in Chapter 2 for attaching your terminal to the EMM using the RS-232 serial port connector . Table 4-2 lists some common problems that may occur when trying to get the EMM to communicate with the terminal.

concentrator is master. If there is only one EMM in the

concentrator, verify that it is set to a mastership priority of 10 (using the SHOW MODULE {slot} VERBO SE command) and then press the reset button on the EMM.

Try the suggestions for th e previous problem.

Table 4-2. EMM Terminal Interface Suggestions

Problem Troubleshooting Suggestions

Nothing appears on the screen. Make sure the R S-232 cable meets the

specifications detailed in Appendix B. Make sure the RS-232 cable is

securely connected to both d evices. See Chapter 2 for installation instructions.

Verify that the baud rates match for the terminal and the EMM.

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Table 4-2. EMM Terminal Interface Suggestions (Contin ued)

Problem Troubleshooting Suggestions

Characters appear on the screen, but are garbled.

The SET command doesn't work.

Abbreviated input is used and pressing [SPACE] does not complete the input.

Random characters are lost. Set the flow control on the terminal

Characters are lost when connected to the EMM through a modem.

The management prompt on the screen is not as you set it.

Power up (switchover) brings up a different configuration than the one last set.

Verify that the EMM and the terminal settings match for baud, data bits, stop bits, and parity . These values are explained in Chapters 3.

Make sure you are logged in as the Administrator and that you are connected to the master EMM.

Enter enough characters for the EMM to distinguish between d ifferent commands and options.

to XON/XOFF. Make sure the STOP_BITS value on

the terminal is set to 2 STOP_BITS.

You may be connected to a remote device. Refer to the REMOTE_LOGIN and LOGOUT commands.

Make sure you SAVE your configuration changes.

Verify that the DIP_CONFIGURATION setting is disabled by using the SHOW DEVICE comm and.

You are not receiving any statistics from the concentrator.

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Check that the EMM and the modules in the concentrator are not isolated.

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Table 4-2. EMM Terminal Interface Suggestions (Contin ued)

Problem Troubleshooting Suggestions

The Master MGT Module LED blinks sporadically.

The >> prompt appears on the screen.

EMM Trap Messages

A trap message is sent to the console when a change is made or an error occurs in a concentrator that has an installed EMM. The trap is also sent to the designated trap receiver (e.g., management workstation) if you have entered this information in th e EMM community table. For example, if a module is removed from a concentrator, a messag e that describes the change is sent to the console, as shown below:

Message received from this device on 15:28 Mon 09 Aug 93: Enterprise: Chipcom

Enterprise Specific Trap: Slot Down Message Information:

Slot Number: 6 Module Type Number: 6 Module Description: 5108M-TP

Check for multiple EMMs and verify that only one has been set to a mastership level of 10.

The EMM is running in maintenance mode. Type BOOT to return to management mode and the ONline> prompt.

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The first two fields in the trap message are described in Table 4-3. The remainder of the fields are dependent on the type of trap received and are self-explanatory.

Table 4-3. EMM Trap Message Fields

Field Description

Enterprise Describes the enterprise (organization)

responsible for this type of trap message.

Enterprise Specific Trap One of the following trap messages:

Slot Up or Slot Down Port Up or Port Down Trunk Up or Trunk Down Fatal Error Environment Change

SNMP traps are also sent to the EMM console when th ey occur. An example of an SNMP trap would be when a device attempts to gather information (read) from th e EMM, but the address of the device h as no t been added to the comm unity table with that acce ss level. The message that would appear in this instance is shown below:

Message received from this device on 15:28 Tues 08 Jun 93: Enterprise: Chipcom

SNMP Generic Trap: SNMP Authentication Failure

You also have the option of disabli ng traps. Use the SET ALERT PORT_UP_DOW N DISABLE command as described in the ONline

Management Commands Guide to disable traps slot up/down traps.

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Technical Assistance

You can receive assistance for installing and troubleshooting the EMM by calling either your 3Com reseller or 3Com T echnical Support. Be prepared to supply a representative with th e fo llowing information:

❑ Description of the problem ❑ Steps you have tak en to try and correct the problem ❑ Type and software version of the ONline network management

module being used

❑ Version of software installed on your EMM ❑ Status of the front panel LEDs ❑ Screen information (if available) ❑ Configuration of your concentrator

(you may find it helpful to refer to the Slot Usage Chart in Appendix B of the ONline System Concentrator Installation and Operation Guide for a record of this information)

Refer to Appendix D for instructions how to contact T echnical Support for your product .

EMM Network Impact

This section describes the impact of the Ethernet Management Module (EMM) on the network. It is designed to help the network administrator identify the source of packets on the network. Specifically , this section will help identify 3Com generated packets.

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The EMM generates packets on the network (channel) in th e following three instances:

❑ When establishing and maintaining a remote login session (RCP or

Teln et session).

❑ When resolving a name tag (or IP Address) to a network address

(TAG, ARP).

❑ When the EMM is configured to support SNMP, and send Alert

messages.

In all other cases, the EMM does not generate any network activity. T raffic statistics are collected by operating in promiscuous mode, that is, listening to each packet on the network. Management of the other modules in the concentrator is accomplished by utilizing a separate control bus on the ONline backplane.

Note that when the EMM i s isolated from the backplane, it cannot generate, nor receive, any Ethernet traffic.

3Com Protocols

In order to support the remote login mechanism, 3Com has defined a thin protocol layer called RCP (Remote Character Protocol). This protocol uses the IEEE 802.2 link control layer protocol. This implies that remote login sessions can exist across bridges, but not across a router.

Also, 3Com has defined a support protocol similar to ARP that resolves names to addr esses. T his “tag resolution” occurs when a user initiates the REMOTE_LOGIN or PING command, using the EMM name.

The entire 3Com protocol packet is structured as follows:

802.3 Header 802.2 Header 3Com Protocol Header Data

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The 802.3 Header is defined by IEEE and consists of:

For Remote Character Protocol

0x81b2 (RTAG) 0x81b2 (RTAG)

0x81b1 (RCP)

For Tag Resolution

– Destination (MAC) address (6 octets) – Source (MAC) address (6 octets) – Enet Type (2 octets)

xx-xx-xx-xx-xx-xx xx-xx-xx-xx-xx-xx SIZE-14

The 802.2 Header is defined by IEEE and consists of:

– D estinations SAP (1 octet) – Source SAP (1 octet) – Ty pe (1 octet) – Protocol ID (3 octets)

0xAA (SNAP) 0xAA (SNA P) 0x03 (UI) 0x08008F (3Co m)

The 3Com Protocol Head er is defined by 3Com and consists of:

– P rotocol ID (2 octets

As stated earlier, tag resolution is initiated to resolve a 3Com name to a network address. This occurs when the name is used in the REMOTE_LOGIN and the PING commands.

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3Com also uses the Inter net defined protocol, ARP (Address Resolution Protocol). This protocol is used in a similar fashion to the tag resolution protocol, except that it is used to resolve an IP address to a network address.

RCP, or the 3Com remote character protocol is used to support the remote login session. The protocol defines a master/slave relationship between the device initiating the login session and the device supporting the session. Termin al characters are separately sent between the master and slave. Upon command completion, the slave sends the output of the executed command.

RCP also maintains an underlying protocol to determine if the login session is still active. Basically , the master pings the slave once a minute. After the timeout period passes without a successful pin g, the remote session is aborted.

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Software Download Instructions

This chapter explains how to download new software to the Flash EPROM in your ONline Ethernet Management Module (EMM). 3Com Corporation provides new software to registered Software Subscriptio n Service users when new features or enhancements are available for the module.

You can download softwa re either t hroug h an out-of-band connection, which requires that your terminal be connected directly to the module RS-232 port, or through an inband connection, which downloads the code from a file stored on a local file server . An inband download is available only using the advanced software version of EMM.

This chapter is divided in to the following sections:

❑ Download Requirements ❑ Out-of-Band Download Instructions ❑ Inband Download Instructions ❑ Troubleshooting

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Download R equ i rements

A UDK key code is required to complete a software download to the EMM. UDK key codes are usually provided with the UDK. However , you will need to request a key code from 3Com if the key code i s not provided on the UDK package. If you need to request a key code from 3Com, locate the fax form in the UDK shipment. Complete this form and fax it to 3Com so that a Customer Service Representative can assign the proper key for your EMM.

The following download components are required before you can perform a downl oad :

❑ You must have the 3Com Firmw a re Distribution Kit (Part Number

5000-FDK) required for out-of-band downloads only. The FDK includes:

– ProCo mm ™ Reference Manual (from Datastorm

Technologies, Inc.) shrink-wrapped with: – ProComm diskettes (3 1/2" disks)

– ProComm software license – 3 Co m 3 1/2" diskettes – 10 ft. RS-232 crossover cable

(refer to Appendix B for the cable pin assignments) – 25-pin to 9-pin adapter

❑ You must have the ONline Ethernet Management Module Update

Distribution Kit from 3Com - Part Number 5100U-xxL-x.xx (limited, single use license) or 5100U -xxU-x.xx (unlimited, site lic ense), including:

– 3Co m 3 1/2" diskettes (two sets for site license) – 3Co m software license – The new user manual for the module (four manuals for

site license) – Release Notes

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❑ IBM PC/A T or compatible with either one high-density diskette drive

and a hard drive, or two high-density diskette drives

❑ 640K of available RAM on the PC ❑ 3Com UDK Key Cod e. The key code is provided automatically with

the UDK for SSS customers. If not already provided, the key code may be obtained by faxing the UDK fax form to 3Com.

Caution: The PC used to download the new software must not

be running any background RAM processes, such as electronic mail systems, because they interfere with the download procedure.

How the FDK and UDK Process Works

The 3Com Firmware Distribution Kit (FDK) makes system upgrades fast and easy for all 3Com products that are equipped with Flash PROMs. The first time you update the software r equires that you purchase both the FDK and the product UDK. All subsequent updates require that you purchase only the new version of the UDK; you can re-use your origin al FDK.

When 3Com issues a software upgrade, we send the upgrade on diskette (UDK) to all registered users who order the upgrade or to all customers who have signed up for the Software Subscription Service (SSS). SSS is explained in more detail in the Preface of this manual. The upgrade takes only two or three minutes usin g an inband download o r ten to fifteen minutes for an out-of-band download, after which time the EMM will be up and running the new version of software.

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Out-of-Ban d Do wn load Instru cti ons

The instructions for performing an out-of-band download to the Ethernet Management Module are divided into the following steps:

❑ Install the ProComm Soft ware ❑ Connect the RS-232 Cable ❑ Download the New Sof tware

Installing the ProComm Software

This step installs and configures ProComm software on your PC hard disk or onto the FDK diskette if you are using a two-floppy system. The files are installed in the subdirectory PROCOMM which is created on the hard drive or on the FDK diskette.

Follow the instructions below to install the ProComm software:

1. Remove the shrink-wrap from the ProComm package and remove the ProComm Di st ribution Diskette.

2. Make a backup copy of both the ProComm diskette and the 3Com provided diskette (the FDK diskette).

3. Place the 3Com diskette in the floppy drive and change to that drive by typing a: or b:.

4. Type the command FDK and press [ENTER] to display the initial installation screen as shown in Figure 5-1.

A:> FDK [ENTER]

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*******************************************************************

Firmware Distribution Kit Copyright 199X Chipcom Corporation This Firmware Distribution Kit will install and configure ProComm,

a terminal emulation program, on you computer’s hard disk or on a second floppy drive. The program will reside in the directory called PROCOMM. Make sure you have the PROCOMM Distribution Diskette and the 3Com Firmware Distribution Diskette ready at all times during the installation.

*******************

*******************************************************************

Enter the Source Drive : Enter the Destination Drive : Enter the COM Port (1-4) : Start the Installation

Press ENTER to accept the current drive selections and start the ProComm Installation.

, TAB: Next Field : Previous Filed Enter: Accept ESC: Quit

Chipcom CORPORATION

Figure 5-1. Initial Installation Screen

5. Enter the letter of the source drive where you will be inserting the ProComm diskette following the “Enter the Source Drive:” prompt. For a hard drive installation, this is the drive where the current 3Com FDK diskette is installed. For a floppy disk install ation , this is the second disk drive. Then press the Down Arrow key (↓) or [TAB] to move the cursor to the next field.

*******************

6. Enter the letter of the destination drive where you want ProComm to be installed following the “Enter the Destination Drive:” prompt. For a hard drive installation, this is usually c or d. For a flop py disk installation, this is the drive where the FDK disk is installed, either a or b. Then press the Down Arrow key (↓) or [TAB] to move to the next field.

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7. Enter the number of the communications port (COM1, COM2, et c. ) to which you will be connecting the RS-232 cable on the PC to perform the software download following the “Enter the COM Port (1-4):” prompt. Then press the Down Arrow key (↓) or [TAB] to move to the next field.

Note: If the message “ProComm directory already exists, overwrite

files?” displays, you have the choice of overwriting the files or quitting the installation. If you enter Y to overwrite the files, the existing ProComm files are deleted and then the new files are copied to the selected driv e .

If you are performing a two-floppy installation, follow step 8. If you are performing a floppy-to-hard drive installation, follow steps 9 and

10.

8. Press [ENTER] if the source and destination drive identifiers and the COM port selection are correct. Then, insert the ProComm diskette in the appropriate drive and press [ENTER] to install and config ure ProComm directly on th e FDK diskette. The floppy installation is complete when the message “INSTALLATION COMPLETE” displays. Label the FDK diskette as now having ProComm installed so you can locate this diskette when necessary.

9. Press [ENTER] if the source and destination drive identifiers and the COM port selection are correct and the installation process begins. Insert the ProComm diskette into the diskette drive when prompted as shown in Figure 5-2.

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*******************************************************************

Firmware Distribution Kit Copyright 199X Chipcom Corporation This Firmware Distribution Kit will install and configure ProComm,

******************

*******************************************************************

Insert the ProComm Distribution Diskette in Drive A Press any key to continue...

Chipcom CORPORATION

Figure 5-2. ProComm Installation Screen

10. Once ProComm is installed on the hard drive, you will be prompted to swap in the 3Com FDK diskette as shown in Figure 5-3. Make sure you place the correct diskette in the disk drive before pressing [ENTER].

******************

Insert the Chipcom Distribution Diskette in Drive A Press any key to continue...

Figure 5-3. Post-ProComm Installation Screen

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This last step of the installation loads the ProComm configuration file. The configuration file sets the parameters that are used by ProCo m m to communicate with the EMM. The parameters are as follows:

Baud= 9600 Data Bits= 8 Stop Bits= 1 Parity= None COM Port= (Port number selected in step 7)

11. The message “Installation Complete” is displayed. ProComm is now installed and ready for use.

Connect the RS-232 Ca ble

This step provides instructions for connecting your PC to t he Ethernet Management Module so you can download the software to the Flash EPROM. Follo w the instructions below:

1. Connect the provided RS-232 cable to the Ethernet Ring Management Module RS-232 serial port connec tor on the front panel of the module.

2. Connect the oth er end of the cable to the serial port on your PC (using the provided 9- to 25-pin adapter if necessary). Make sure you connect the cable to the comm unications port you specified for ProComm durin g the FDK installation procedu re.

Preparing to Download the New Software

This procedure copies the new EMM software to the Flash EPROM on the Ethernet Managem ent Module. Note that this procedure creates a file called profile.cmd in the PROCOMM directory . If you currently have a file with that name, rename it before the UDK download so that it does not get overwritten. If PROCOMM is on the FDK disk, the disk must b e write enabled.

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Warning: Do not interrupt power to the concentrator during the

download process or you may corrup t the Flash EPROM.

1. Make a backup copy of the 3Com UDK diskette.

2. Place the 3Com UDK diskette in the floppy drive and change to that drive by typing a: or b:.

3. Type the command UDK and press [ENTER] to display the initial installation screen as shown in Figure 5-4.

A:> UDK [ENTER]

*******************************************************************

Chipcom CORPORATION

Update Distribution Kit Copyright 199X Chipcom Corporation This Update Distribution Kit will start ProCommso you can

download new software to your 3Com device. Make sure you follow the instructions carefully to avoid downloading the wrong file to your device. Downloading the wrong file may damage the device.

******************

*******************************************************************

Enter the Source Drive : Enter the ProCcomm Drive : Start Procomm

******************

Press ENTER to accept the current drive selections and start ProComm.

, TAB: Next Field : Previous Filed Enter: Accept ESC: Quit

Figure 5-4. Initial UDK Installation Screen

4. Enter the letter of the source drive (where you inserted the 3Com UDK diskette) following the “Enter the Source Drive:” prompt. Then press the Down Arr ow key (↓) or [TAB] to move the cursor to the next field.

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5. Enter the letter of the drive where ProComm has been installed following the “Enter the Destination where ProComm resides:” prompt. For a hard drive installation, this is usually c or d. For a floppy disk installation, this is the drive where the FDK disk is installed, usually a or b. Then press the Down Arrow key (↓) or [TAB] to mo ve to the next field.

6. If the source and destination drive identifiers are correct, press [ENTER] to begin the installation process. The ProComm Header screen displays quickly and then the ProComm Status Line screen appears as shown in Figure 5-5.

ALT-F10 VT-100 FDX 9600 N81 LOG CLOSED PRT OFF CR CR

Figure 5-5. ProComm Status Line Screen

Follow the next procedure to complete a software download to the EMM.

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Downloading the New Software

Use the following procedure to download so ftware to the EMM.

1. Press [ENTER] to display the ONline> prompt and then log in to the EMM as the system administrator.

2. Type the MAINTAIN command to enter maintenance mode where the download can be completed.

ONline> maintain [ENTER] Enter administrator password:

Enter the administrator password for that EMM and the following is displayed:

Network agent executive system controller (vx.x) Copyright 199x Chipcom Corporation

3. Type the following download command and press [ENTER] to begin the download procedure.

>> download out_of_band [ENTER] WARNING: Download will erase your current operational code.

You will need the following to replace the software:

1. PC running ProComm communications software.

2. Chipcom Network Management Module software media.

3. The serial number of the Upgrade Distribution Kit.

4. Chipcom Key Code, which is provided by completing the UDK fax form and faxing it to 3Com at (508)460-6195. Please list your return fax number, your Upgrade Distribution Kit Serial number, plus for non-site licenses

Management Module's ID number: 3658117

If you are positive you want to perform a download, enter the 'download out_of_band' command again within 10 seconds.

Otherwise the sequence will be aborted.

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4. Press the key sequence [CTRL-R] to redisplay the pr evious command and then press [ENTER] to initiate the download. (If the download sequence times out before you press [CTRL] [R], retype the download command.)

>> download out_of_band [ENTER] Enter Upgrade Distribution Kit Serial number:

5. Enter the serial number from the UDK diskette and press [ENTER].

Enter Chipcom Key Code:

6. Enter the key code supplied by 3Com Corporation. Then press [ENTER] to initiate the download process.

7. Once the message “Please enter download sequence: <ALT> <F5> <CR>” displays, press the key combination [ALT-F5] and the ProComm Menu Screen displays as shown in Figure 5-6.

Note that you must enter this key sequence within 10 seconds or the download will abort. If the command is timed out, return to Step 3 and retype the Download command.

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EMM1> maintain Enter administrator password:

ONlin versi

>> do

WARNING: Download will erase your current operational code and new software. You will need the following to replace software:

1. PC running ProComm communications software.

2. Chipcom Netowrk Management Module software media (UDK). If you are sure you want to perform a download command again within

10 seconds or the download will be aborted. Preparing device for download...

Please enter the download sequence: <ALT> <F5>

ALT-F10 VT-100 FDX 9600 N81 LOG C LOSED PRT OFF CR CR

Command file:

Figure 5-6. ProComm Menu Screen

8. Press [ENTER] to download the selected file to the EEPROM. This process takes approximately 12 to 20 minutes at 9600 baud. If you use a slower baud rate, the download will take much longer.

Command Files EMMx_xx.CMD

Once the download process begins, do not press any keys or otherwise interfere with the process.

As the download proceeds, the screen shown in Figure 5-7 is displayed and th e Download LED on th e EMM lights.

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PROTOCOL: XMODEM FILE NAME: emmx_xx.bin FILE SIZE: xxxxx BLOCK CHECK: CRC TRANSFER TIME: xx:xx BYTES TRANSFERRED: xxxx BLOCKS TRANSFERRED xxxx BLOCKS IN FILE: xxxx ERROR COUNT: 0 LAST MESSAGE: NONE

Download successful. >> boot

<Boot messages display for new operational code> Ethernet Management Module (v x.xx) Copyright 199x Chipcom

Corporation...

Figure 5-7. ProComm Download Screen

The PC will beep to indicate that the download has completed and also display 'Download successful". If error messages are displayed on the screen, refer to the Troubleshootin g section in this chapter.

9. Press the key sequence [ALT-X] and the “EXIT TO DOS? (Y/N)” prom pt displays as shown in Figure 5-8.

EXIT TO DOS? (Y/N)

Figure 5-8. Exit ProComm Screen

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10. Enter “Y” to exit from ProComm and the UDK Completion Screen displays as shown in Figure 5-9.

*******************************************************************

Update Distribution Kit Copyright 199X Chipcom Corporation This Update Distribution Kit will start ProCommso you can

download new software to your 3Com device. Make sure you follow the instructions carefully to avoid downloading the wrong file to your device. Downloading the wrong file may damage the device.

******************

*******************************************************************

DOWNLOAD COMPLETE

Press any key to exit

, TAB: Next Field : Previous Filed Enter: Accept ESC: Quit

Chipcom CORPORATION

******************

Figure 5-9. UDK Completion Screen

11. Press any key to exit from the UDK program.

12. Disconnect the cable from the PC and the Ethernet Management Module. The EMM is now updated with the new software.

Inband Dow nlo ad Ins truc tions

The EMM provides an inband download feature that allows you to update your EMM Flash EPROMs using TFTP (Trivial File Transfer Protocol). TFTP allows the transfer of files to and from a remote machine. By using the TFTP protocol, you can inband download new EMM software to an EMM from a remote network server.

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Note: Y ou can perform an inband download (remotely or locally)

when you are logged into an Advanced EMM. However, you cannot perform an inband download when you are remotely logged into either a Starter or Basic EMM. This is because Starter and Basic EMMs must be in maintenance mode in order to perform an inband download. When an EMM enters maintenance mode, a remote session is disconnected.

The following prerequisites must be completed prior to initializing the download:

❑ You must have a TFTP server on the network to perform inband

downloads

❑ EMMs to be updated must be assigned to the same network as the

TFTP server

Use the following procedure to perform an inband download to a Starter, Basic, or Advanced EMM. Additional steps required to perform a download from maintenance mode are included.

1. Transfer the contents of the UDK f loppy disk to your netw ork TFTP server using the copy command for DOS-based systems. Use the F TP BINARY mode for UNIX-based systems. Note that the FTP BINARY mode must be specified instead of the default ASCII mode or the file will be corrupted.

Note: If your TF TP s erver is running on a UNIX machine, you need

to FTP the file from the DOS machine to the server. If your server is running in a DOS environment, you must be in the directory that contains the.BIN file when you start the server.

The floppy disk contains one file - emm400.bin, which updates the Flash EPROM.

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2. Connect the provided RS-232 cable to the Ethern et Management Module RS-232 serial port connec tor on the front panel of the module. Then connect the other end of the cable to the serial port on your PC (using a 9- to 25-pin adapter, if necessary).

You may also use Telnet or Remote_Login to perform inband downloads to an Ad vanced EMM. By establishing a remote session from an Advan ced EMM to another EM M, you may issue TFTP commands and perfor m the download remotely.

3. Configure the TFTP parameters by issuing the following three management commands as shown below. Note that these parameters must be set for each EMM to be upd ated. To update multiple EMMs, you must log in to or establish a Telnet session with the next EMM to be updated and issue the TF TP commands for that EMM.

ONline> set tftp file_name [ENTER] ONline> set tftp server_ip_address [ENTER]

4. If you are performing the download from Maintenance mode, you must also issue the SET DOWNLOAD NETWORK command to configure the EMM to the network to which the server is co nnected.

5. Issue the SHOW TFTP com mand as shown to verify the TFTP parameters previously set.

ONline> show tftp [ENTER] TFTP Server IP Address: nnn.nnn.nnn.nnn

TFTP File Name: emmv400.bin TFTP Result: CLEAR

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6. Issue the DOWNLOAD INBAND command as shown to begin the download.

ONline> download inband WARNING: Download will erase your current operational code.

You will need the following to replace the software:

1. Chipcom Management Module Software residing on a TFTP server accessible over the network.

2. The TFTP variables (see SHOW TFTP and SET TFTP) must be set up to point to the TFTP server. The DEVICE

varibles (see SHOW DEVICE and SET DEVICE) must be set up

to a valid IP configuration.

3. The serial number of the Upgrade Distribution Kit.

4. Chipcom Key Code, which is provided by completing the UDK fax form and faxing it to 3Com at (508) 460-6195. Please list your return fax number, your Upgrade Distribution Kit Serial Number, plus for non-site licenses: Management Module's ID number: 3658117

If you are positive that you want to perform a network download, enter the download inband again within 10 seconds. Otherwise, the sequence will be aborted.

7. Press the key sequence [CTRL-R] to redisplay the pr evious command and press [ENTER] to begin the download process.

ONline> download inband [ENTER] Enter Upgrade Distribution Kit Serial number:

8. Enter the serial number from the UDK diskette and press [ENTER].

Enter 3Com Key Code:

9. Enter the Key Code number as supplied from 3Com Corporation and press [ENTER].

Enter Administrator Password [ENTER]

10. Enter the administrator p assword and press [ENTER]. Once the download begins, do not press any keys or interfere wit h the process.

If you are logged into an EMM remotely, the following message i s displayed. Once this message displays, the remote session is terminated and the download begins.

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Note: Performing an inband download will end your remote login session. It wil l be necess ar y for you t o remote_logi n ag ain to chec k your TFTP resul t code.

Wait three to five minutes allowing the download to complete before re-connecting to the EMM. You may then log in remotely to the EMM. Issue the SHOW TFTP command to display the TFTP Result Field and verify that the download transfer was successful.

If you are logged into an EMM locally, the download begins once you enter the administrator password.

When the download completes, the following message is displayed when the EMM boot up under the new software.

Inband Download Successful Rebooting System: standby

Ethernet Management Module (vx.xx) Copyright (c) 199x

Chipcom Corporation

Press [ENTER] to display the Password: prompt. Enter the administrator password to log into the EMM.

If error messages are displayed, refer to the T r oubleshooting section beginning on the next page.

Troubleshooting

This section discusses possible problems you may encounter during the out-of-band or inband download procedures. The problems are divided into ProComm Problems and Ethernet Management Module Problems.

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ProComm Problems

If the problem is not listed in Table 5-1, UDK Error Messages, refer to the ProComm Reference Manual. Refer also to Table 5-2 which lists EMM

download error messages.

Table 5-1. UDK Error Messages

Message Troubleshooting Suggestion

Invalid Source or ProComm Drive Specifications

Specified Source Drive is inaccessible, Drive latch closed?

Specified ProComm Drive is inaccessible

Y ou must have ProComm to successfully download Installation Terminated, press any key to exit

The drive letter entered where the UDK program may find the 3Com distribution diskette, or ProComm is invalid. The drive letter entered for the 3Com distribution diskette must be 'A' or 'B'. The drive letter entered where the UDK may find ProComm cannot be the same as the drive letter entered to find the 3Com distribution diskette.

The specified drive lett er for the UDK program to find the download files is inaccessible. Verify the floppy drive exists, the diskette is inserted, and the drive latch is closed.

The specified driv e lett er for the ProComm drive is inaccessible. Verify the specified drive exists and ProComm is installed on it.

The UDK program is unable to locate a ProComm subdirectory on t he specified destination d rive. Verify that a directory called \PROCOMM exists on the destination drive and that the ProComm files are in it.

5 - 20 ONline Ethernet Management Module Installation and Operation Guide

Page 99

Table 5-1. UDK Error Messages (Continued)

Message Troubleshooting Suggestion

Fatal Error: Insufficient Available Memory to run ProComm

Fatal Error: Unable to run ProComm or ProComm not found

A minimum of 200k bytes of free memory is necessary to successfully run ProComm and to do the download. Decreasing the number of T erminate and Stay Resident Programs present while running the UDK program will free memory.

The ProComm subdirector y on the destination drive does not cont ain ProComm or ProComm has been corrupted. Verify that ProComm exists on the destination drive subdirectory \PROCOMM.

You may also want to run the DOS CHKDSK utility on the drive to ensure that the files are not corrupt.

Ethernet Management Module Problems

EMM problems during the download cause an error statement to be displayed on the screen. Common error messages and their meanings are discussed in Table 5-2. If it is necessary to contact 3Com Support, follow the procedure outlined in Appendix D.

Software Down load Instructions 5 - 21

Page 100

Table 5-2. EMM Download Error Messages

Message Troubleshooting Suggestion

Maximum bad CRC—transfer aborted Check the RS-232 cable and

retry. If the problem persists, call 3Com Support.

Transfer timeout—transfer aborted Try again. If the problem

persists, call 3Com Support.

Packet out of sequence—tran sfe r aborted

Incorrect code type—transfer aborted wrong version of software

Incorrect code version—transfer aborted, wrong version of software

Try again. If th e problem persists, call 3Com Support.

RAM write error—transfer aborted Try again. If the problem

persists, call 3Com Support.

RAM verify error—transfer aborted Try again. If the problem

persists, call 3Com Support.

RAM CRC error—t ransfer aborted Try again. If the problem

persists, call 3Com Support.

FEPROM program error—transfer

Call 3Com Support.

aborted FEPROM overflow—transfer aborted Call 3Com Support. FEPROM erase error—transfer aborted Call 3Com Support. FEPROM initialization error —

Call 3Com Support.

transfer aborted

5 - 22 ONline Ethernet Management Module Installation and Operation Guide

3Com 5101M-MGT User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Audience

Structure of This Guide

Document Conventions

Related Documents

3Com Documents

Reference Documents

The ONline Ethernet Management Module

Theory of Operation

Complete ONline Control

ONline Ethernet Management Module Versions

The EMM Starter Version

The EMM Basic Version

The EMM Advanced Version

Network Management Access

Network Management Functio ns

ONline Backp l ane Architec tu re

Where To Go From Here

Precautionary Procedures

Unpacking Procedure

Installatio n Procedures

Verifying Operation

The EMM Front Panel

Status LED

Master Mgt Module LED

Download in Progress LED

Reset Button

RS-232 Serial Port

Where to go From Here

Quick Reference for Getting Started

Saving and Reverting Config ura tio n Values

Configuring the Terminal

Optional Termina l Settings

Setting Terminal Hangup

Setting Terminal Prompt

Setting Terminal Timeout

Configuring the EMM

Setting Device Password

Establishing the Administrator Password

Establishing the User Password

Assigning an EMM Name

Setting Device Diagnostics

Assigning a Contact Name and Location

Configuring SNMP Values

Assigning IP Addresses

Creating a Community Table

Configuring the Alert Setting

Setting a Subnetwork Mask

Defining the Default Gateway

Enabling Trap Receiv e

Configuring Modules and Ports

Assigning Module Networks

Assigning Module Master ship Priority

Setting Port Mode

Setting Port Network

Setting Redundant Ports

Configuring Address-to-Port Security

Managing Secur ity with EMM Master and Sla ves

Establishin g Remo te Logins

Logging Out From a Remote Session

Monitoring With SHOW Commands

Showing Device Information

Showing Module Information

Showing Port Information

Showing Concentrator Information

Showing Counter Statistics

Using the MONITOR Command

Where To Go From Here

Applying Power

EMM and Terminal Interface

EMM Trap Messages

Technical Assistance

EMM Network Impact

3Com Protocols

Download R equ i rements

How the FDK and UDK Process Works

Out-of-Ban d Do wn load Instru cti ons