3Com 5101M-MGT User Manual

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

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,

ii ONline Ethernet Management Module Installation and Operation Guide

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.

ONline Ethernet Management Modul e Installation and Operation Guide iii

iv ONline Ethern et Management Mo dule Installation and Operation Guide

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

ONline Ethernet Management Module Installation and Operation Guide v

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

vi ONline Ethernet Management Module Installation and Operation Guide

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

ONline Ethernet Management Module Installation and Operation Guide vii

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

viii ONline Ethernet Management Module Installatio n and Operation Guide

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

ONline Ethernet Management M odule Installation and Operation Guide ix

x ONline Ethernet Management Module Installation and Operation Guide

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

ONline Ethernet Management M odule Installation and Operation Guide xi

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.

ONline Ethernet Management Module Installation and Operation G uide xiii

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.

xiv ONline Ethernet Management Module Installation and Operation Guide

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

ONline Ethernet Management Module Installation and Operation Guide xv

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

xvi ONline Ethernet Management Module Installation and Operation Guide

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

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.

1 - 2 ONline Ethernet Management Module Installation and Operation Guide

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

Introduction 1 - 3

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.

1 - 4 ONline Ethernet Management Module Installation and Operation Guide

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

Introduction 1 - 5

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

1 - 6 ONline Ethernet Management Module Installation and Operation Guide

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.

Introduction 1 - 7

❑ 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.

1 - 8 ONline Ethernet Management Module Installation and Operation Guide

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

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

1 - 10 ONline Ethernet Management Module Installation and Operation Guide

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

Introduction 1 - 11

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.

1 - 12 ONline Ethernet Management Module Installation and Operation Guide

+ 92 hidden pages