3com CoreBuilder 5000 Distributed Management Module User Guide

CoreBuilder® 5000

Distributed Management Module User Guide

Software Version v6.0

http://www.3com.com

Part No. 10012821 Published November 1999

3Com Corporation 5400 Bayfront Plaza Santa Clara, California 95052-8145

Copyright © 1999, 3Com Corporation. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without written permission from 3Com Corporation.

3Com Corporation reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Corporation to provide notification of such revision or change.

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If there is any software on removable media described in this documentation, it is furnished under a license agreement included with the product as a separate document, in the hardcopy documentation, or on the removable media in a directory file named LICENSE.TXT or!LICENSE.TXT. If you are unable to locate a copy, please contact 3Com and a copy will be provided to you.

UNITED STATES GOVERNMENT LEGEND

If you are a United States government agency, then this documentation and the software described herein are provided to you subject to the following:

All technical data and computer software are commercial in nature and developed solely at private expense. Software is delivered as “Commercial Computer Software” as defined in DFARS 252.227-7014 (June 1995) or as a “commercial item” as defined in FAR 2.101(a) and as such is provided with only such rights as are provided in 3Com’s standard commercial license for the Software. Technical data is provided with limited rights only as provided in DFAR 252.227-7015 (Nov 1995) or FAR 52.227-14 (June 1987), whichever is applicable. You agree not to remove or deface any portion of any legend provided on any licensed program or documentation contained in, or delivered to you in conjunction with, this User Guide.

Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or may not be registered in other countries.

3Com, the 3Com logo, CoreBuilder, LANsentry, and ONsemble are registered trademarks of 3Com Corporation. ONline is a trademark of 3Com Corporation. 3Com Facts is a service mark of 3Com Corporation.

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All other company and product names may be trademarks of the respective companies with which they are associated.

ONTENTS

BOUT THIS GUIDE

Introduction 1 Audience 1 How to Use This Guide 1 Conventions 2 Related Documents 4

3Com Documents 4 Reference Documents 4

NTRODUCTION

DMM Overview 1-1 CoreBuilder 5000 Distributed Hub Management 1-4

CoreBuilder 5000 Management System Components 1-4 Ethernet Network Monitor Card Description 1-7 Advanced Ethernet Network Monitor Card Description 1-7 Token Ring Network Monitor Card Description 1-8 Example DMM Application 1-8

Network Management Functions 1-9

ESIGNING A MANAGEMENT SYSTEM

Understanding CoreBuilder 5000 Management Architecture 2-1

Management Architecture Components 2-1

Management Architecture Options 2-2 Understanding CoreBuilder 5000 Management Functions 2-2 Using Multiple DMMs for Fault Tolerance 2-3 Network Monitoring Options Using DMM 2-3

Levels of Monitoring 2-3

Using One NMC for Multiple Networks 2-3

Using One NMC per Network 2-3 Incorporating N+1 NMCs for Fault-Tolerance 2-4 ONline System Concentrator Management Modules in a CoreBuilder 5000

Hub 2-4

NPACKING AND INSTALLING THE MODULE

Precautionary Procedures 3-1 Unpacking Procedures 3-1 Preinstallation Procedures 3-2

Switching the Auxiliary Port to RS-423 Mode 3-2 Installing an Ethernet Network Monitor Card 3-3 Installing an Advanced ENMC 3-4 Installing a Token Ring NMC 3-4

Installing the DMM or DMM-EC Modules 3-5

Hot Swapping 3-5 Installing the DMM 3-6 Verifying Operation 3-6

Using the Module Front Panel 3-7

DMM-EC and DMM Front Panel Components 3-8 A/DMM Controller Module Front Panel Components 3-9 Module Status LED 3-10 Character Display and Display Button 3-10 DMM Reset Button 3-11 Ethernet Network LEDs 3-11 RS-232 Console and Auxiliary Ports 3-12

Connecting to a Terminal or Modem 3-12 Using a Modem 3-13

ONFIGURING THE

Quick Reference for Configuring the DMM 4-2 Configuring the Terminal 4-2

Configuring the Terminal to Default Settings 4-2 Changing the Terminal Configuration 4-3 Customizing Terminal Settings 4-3

Setting Terminal Hangup 4-3 Setting Terminal Prompt 4-4 Setting Terminal Timeout Value 4-4 Setting Terminal Type 4-4 Setting the Console or Auxiliary Port for SLIP Operation 4-5

Configuring User Logins 4-6

User Access Levels 4-6 User Login Functions 4-6

Super User Access 4-6 Adding New Users 4-7 Showing Current Users 4-7 Clearing Login Names 4-8

Configuring the DMM 4-8

Configuring the Internal Clock 4-8

DMM

Configuring the DMM Device 4-9

Assigning the DMM a Name 4-9 Setting Device Diagnostics 4-9 Assigning a Contact Name and Location 4-9

Configuring the TR-NMC 4-10

Selecting Early Token Release Mode 4-10 Setting External Wrap Mode 4-10 Setting Internal Wrap Mode 4-11 Entering a Locally Administered MAC Address 4-11 Selecting the MAC Address Type 4-11 Selecting Monitor Contention Mode 4-11 Including Routing Information in ARP Request Frames 4-12

Setting SNMP Values 4-12

Interaction Between DMM and SNMP 4-12 Obtaining More Information on SNMP 4-13 Setting Up IP Connectivity 4-14

Setting a Subnet Mask 4-14 Assigning an IP Address to the DMM 4-14 Defining a Default Gateway for Each Network 4-15 Selecting the Active Default Gateway 4-15

Showing and Saving IP Settings 4-15 Creating a Community Table 4-16 Configuring the Alert Setting 4-16 Enabling Trap Receive 4-16

Making In-band Connections 4-16 Setting Up Network Monitoring 4-18

Monitoring Multiple Networks Simultaneously 4-18 Setting Up Redundant Network Monitor Cards 4-19 Enabling DLM Mode on an A-ENMC 4-19

Saving Configuration Values 4-20 Logging Out 4-20 Adding a Second DMM for Fault Tolerance 4-21

DMM Mastership Priority 4-21 DMM Mastership Elections 4-22

SING THE

Using Telnet to Manage DMM Remotely 5-2 Using DMM Telnet to Log In to Remote Devices 5-2

Logging In to a Remote Device 5-2 Logging Out from a Remote Device 5-3

Setting Up SNMP Access 5-3 Configuring Networks Using the DMM 5-4

Allocating Backplane Resources 5-4

DMM

Backplane Path Description 5-4

Backplane Path Example 5-5

Network Backplane Restrictions 5-6

FOR NETWORK ADMINISTRATION

Configuring CoreBuilder 5000 Token Ring Networks 5-6

Enabling Beacon Recovery 5-6 Setting Network Mode (Backplane or Isolated) 5-6 Selecting a Network Ring Speed 5-7 Enabling Mismatch Resolution 5-8

Configuring Modules 5-8

Configure Modules 5-8 Assign Module Networks 5-8

Configuring Ports 5-9

Setting Port Mode 5-9 Setting Up Port Redundancy 5-9

Using Port Groups 5-9 Using Token Ring Port Fan-Out Mode 5-10 Configuring Trunks 5-10

Enabling and Disabling Trunks 5-10

Selecting a Trunk Network 5-11

Setting Trunk Compatibility Mode 5-11 Controlling the ATM Switch/Control Module 5-12

Configuring the Module IP Default Gateway 5-12

Configuring the Module ATM Port 5-12

Setting the Port IP Address 5-12

Setting the Port IP Subnet Mask 5-12

Configuring Token Ring MAC-Address-to-Port Security 5-13

MAC-Address-to-Port Security Overview 5-13 Implementing MAC-Address-to-Port Security 5-13 Using the Autolearning Feature 5-14

Autolearning Feature Overview 5-14

Implementing the Autolearning Feature 5-15

Configuring the Autolearning Mask 5-15

Downloading the Autolearning Database 5-15

Showing Learned Addresses 5-16

Clearing the MAC Address Table 5-17

Clearing the Autolearning Database 5-17

Defining a MAC Address Manually 5-17

Using Ethernet Private Line Card Features 5-18 Preconfiguring (Staging) New Modules 5-19

Staging Overview 5-19 Understanding Staging 5-19

Staging in a DMM-Managed Hub 5-19

Staging in an Unmanaged Hub 5-20

Writing and Scheduling Command Scripts 5-20

Writing Command Scripts 5-20

Required Login Privileges 5-20

Available DMM Commands 5-21

Maximum Number of Scripts 5-21

Maximum Script Length 5-21

Placing Comments in Scripts 5-21

Calling Other Scripts 5-21

Using Script Recursion 5-21 Using the SET ALERT SCRIPT Command 5-21 Using the RUN SCRIPT Command 5-22 Using the SHOW SCRIPT Command 5-22

Downloading ASCII Script Files 5-22

Script File Header 5-22 Downloading the Script File 5-23

Scheduling Command Scripts 5-23

Including Port Groups in Schedules 5-23 Scheduling Examples 5-24

Saving and Reverting Configuration Values 5-25

Saving Configuration Values 5-25

Saving Module Settings 5-25 Saving All DMM Settings 5-25

Reverting Configuration Values 5-25

Reverting All Configuration Values 5-25

Uploading and Downloading DMM Configuration Files 5-26

Overview 5-26 Upgrading to Later Versions of Software 5-26 Uploading a DMM Configuration 5-26 Downloading a DMM Configuration 5-27

Determining Hub Configuration Using the SHOW Commands 5-28

Showing Hub Inventory 5-28 Showing Device (Master DMM) Information 5-29 Showing Module Information 5-29

Displaying A-ENMC Module Information 5-30 Showing Port Information 5-31 Showing ATM Switch/Control and Port Configurations 5-33 Showing Hub Information 5-34 Showing Network Resource Allocation 5-35 Showing Trap and Event Logs 5-36

Understanding Alerts 5-37

Using Alert Commands 5-37

SET ALERT Command 5-37

SET ALERT Trap Options 5-37

SET ALERT Example 5-37 Filtering Unwanted Port Up/Port Down Alerts 5-38

SING

BOOTP Overview 6-1

BOOTP Configuration Process 6-3

BOOTP

BOOTP Description 6-1 BOOTP Servers 6-2 Uses for BOOTP 6-2

BOOTP Process Initiation 6-3 BOOTP Requests and Responses 6-3

Using BOOTP 6-4

Preparing the Configuration File 6-4 Setting BOOTP Power-up Mode 6-4 Setting the BOOTP Server IP Address 6-4 Selecting the BOOTP Module 6-5 Running BOOTP from the Command Line 6-5 Showing the BOOTP Configuration 6-5

Clearing the BOOTP Result 6-5 Sample BOOTPtab File 6-6 BOOTP Theory of Operation 6-7

BOOTP on a DMM Using Default Parameters 6-7

BOOTP on a DMM Using Configured Parameters 6-8

Successful BOOTP Requests 6-8 Connecting to an Unconfigured Hub Using BOOTP 6-9

SING POWER MANAGEMENT

Power Management Overview 7-1 Turning Slot Power On and Off 7-2 Setting Up Fault-Tolerant Power 7-2 Setting Power Class 7-2 Entering Power Information 7-3 Showing Power Settings 7-3 Using Power Management with ONline System Concentrator Modules 7-4

Power Management Overview 7-4

Verifying Power Availability 7-4

SING THE

Available Statistics Groups Overview 8-1

Understanding Remote Monitoring 8-2

Understanding IEEE 802.3 Ethernet MIB 8-5

Understanding IEEE 802.5 Token Ring MIB 8-5

Understanding MIB II 8-5 Enabling, Disabling, and Showing Statistics Groups 8-6

Understanding RMON Control and Data Tables 8-6

Enabling and Showing Basic Ethernet and Token Ring Statistics 8-7

Using Basic Ethernet Statistics 8-7

Using Basic Token Ring Statistics 8-11 Enabling, Disabling, and Showing Ethernet RMON Groups 8-13

Enabling the ENMC RMON Probe Mode 8-13

Using the Ethernet Host Group 8-14

DMM

RMON MIB 8-2 Token Ring Extensions to the RMON MIB 8-4

Control Table Description 8-6

Activating the Host Group 8-14 Removing the Host Group 8-14 Showing the Host Group 8-15

FOR NETWORK ANALYSIS

Using the Matrix Table 8-15

Understanding the Matrix Table 8-15 Activating the Matrix Table 8-16 Removing the Matrix Table 8-16 Showing the Matrix Table 8-16

Using Report Generation 8-17

Understanding Report Generation 8-17 Using the History Report 8-17 Activating the History Group 8-17 Removing the History Group 8-18 Showing the History Group 8-18 Using the Host TopN Report 8-18 Activating the Host TopN Group 8-19 Clearing the Host TopN Group 8-19 Showing the Host TopN Group 8-19

Enabling RMON Event Management (Events and Alarms) 8-20

Understanding Thresholds 8-20

Overview of Thresholds 8-21 Crossing Thresholds 8-21 Uses for Thresholds 8-22

Setting Up Events and Alarms 8-22

Creating an Event 8-22 Removing an Event 8-22 Showing Events 8-22 Creating an Alarm 8-22 Removing an Alarm 8-23 Showing Alarm Control Table Entries 8-23 Setting Up an Alarm and Associated Events 8-24

Enabling, Disabling, and Showing Token Ring RMON Groups 8-25

Enabling Token Ring RMON 8-25 Enabling Individual Statistics Groups 8-26

Using Host Statistics 8-26 Using MAC Layer Statistics 8-26 Using Promiscuous Statistics 8-27 Using Ring Station Statistics 8-28 Using Source Routing Statistics 8-29

Monitoring Networks Using SHOW COUNTER and MONITOR Commands 8-30

Using the SHOW COUNTER Command 8-30

Using the MONITOR Command 8-32 SwitchModule Monitoring Support 8-33 Triggering Scripts from RMON Events (Autoscript) 8-34

Setting a Script to Trigger 8-34

Displaying the Script Event List 8-34

SING THE TOKEN RING SURROGATE

Understanding the Surrogate Group 9-1 Understanding REM and CRS 9-2

Ring Error Monitor (REM) 9-2 Configuration Report Server (CRS) 9-3

Enabling, Disabling, and Showing the TR Surrogate 9-3

Enabling the Surrogate Function 9-4 Showing the Surrogate Status 9-4 Using the REM Function 9-5

Enabling the REM Function 9-5 REM Use Considerations 9-7 Showing the REM Status Table 9-8 Showing REM Soft Error Statistics 9-8 Showing the REM Isolating Table 9-9 Showing the REM Last Received Beacon Data Table 9-9 Showing the REM Last Received Soft Error Table 9-10 Showing the REM Non-Isolating Threshold Exceeded Table 9-10 Showing the REM Error MAC Frame Table 9-11

Using the CRS Function 9-11

Enabling CRS 9-11 Showing CRS Status 9-12 Setting CRS Station Values 9-12 Showing CRS Station Values 9-13

Troubleshooting REM and CRS Functions 9-14

NTERPRETING NETWORK STATISTICS

Interpreting Ethernet Statistics 10-1

Understanding Ethernet Statistics Terminology 10-1 Interpreting Ethernet Network Statistics 10-2

Benchmarking Network Statistics 10-2 Understanding Common Error Types 10-3

Interpreting Ethernet RMON Statistics 10-4

Interpreting Token Ring Statistics 10-5

Soft Errors 10-6 Hard Errors 10-8 Insertions 10-8 Token Ring RMON Host Statistics 10-8 Token Ring RMON MAC Layer Statistics 10-8 Token Ring RMON Promiscuous Statistics 10-9 Token Ring RMON Ring Station Statistics 10-9 Token Ring RMON Source Routing Statistics 10-9

OWNLOADING SOFTWARE TO COREBUILDER

Download Requirements 11-2

TFTP Server 11-2

Latest CoreBuilder 5000 Management Products Release Notes 11-2

IBM PC/AT or Compatible PC 11-2 Downloading Software In-band 11-2

Preparing for the In-Band Software Download 11-3

Performing the In-Band Software Download 11-3

In-band Download Example 11-4

Downloading Software Out-of-Band 11-5

Preparing for the Out-of-Band Software Download 11-5

Connecting the PC to the DMM 11-5

Downloading Software Out-of-Band Using XModem 11-5

Out-of-Band Download Example 11-6

TR-NMC Chipset Download 11-7

TR-NMC Chipset Download Example 11-7 Standby DMM Download Instructions 11-8

Standby DMM Download Example 11-8

5000 M

ODULES

NTERNET GROUP MANAGEMENT PROTOCOL

Overview 12-1 CoreBuilder 5000 Support 12-4 Locating Multicast Routers in the Network 12-4 No Multicast Routers on the Network 12-5 Enabling IGMP Snooping on CoreBuilder 5000 SwitchModules 12-5

ROUBLESHOOTING THE

Interpreting LEDs 13-1 Troubleshooting Power-up Problems 13-1 Troubleshooting Download Problems 13-2 Troubleshooting the Terminal Interface 13-3 Understanding DMM/NMC Network Impact 13-4 Interpreting DMM Trap Messages 13-5 Troubleshooting TR-NMC Receiver Congestion 13-6 Obtaining Technical Assistance 13-6

PECIFICATIONS

DMM Specifications A-1

General Specifications for DMM and DMM-EC A-1

General Specifications for A/DMM A-2

Power Specifications A-2

Environmental Specifications A-2

Mechanical Specifications A-2

DMM

(IGMP) S

NOOPING

ENMC Technical Specifications A-3

General Specifications A-3 Power Specifications A-3 Environmental Specifications A-3 Mechanical Specifications A-3

A-ENMC Technical Specifications A-3

General Specifications A-3 Power Specifications A-3 Environmental A-4 Mechanical A-4

TR-NMC Technical Specifications A-4

General Specifications A-4 Power Specifications A-4 Environmental Specifications A-4 Mechanical Specifications A-4

XPANSION MEMORY

Model Numbers for Expansion Memory Cards B-1 Installing Expansion Memory B-1

Adding Additional Memory to the A-ENMC B-3

ECHNICAL SUPPORT

Online Technical Services C-1

World Wide Web Site C-1 3Com Knowledgebase Web Services C-1 3Com FTP Site C-1 3Com Bulletin Board Service C-2

Access by Analog Modem C-2 Access by Digital Modem C-2

3Com Facts Automated Fax Service C-2 Support from Your Network Supplier C-2 Support from 3Com C-3 Returning Products for Repair C-4

NDEX

3COM C

ORPORATION LIMITED WARRANTY

1-1

1-2 2-1 3-1 3-2 3-3 3-4 3-5 3-6 4-1 5-1 5-2

8-1 12-1 12-2 12-3 12-4

B-1 B-2

IGURES

CoreBuilder 5000 A/DMM with Ethernet Carrier, an Advanced Ethernet Network Montior Card, and Ethernet Network Monitor Cards 1-5

CoreBuilder 5000 Network Management Architecture 1-6 Network Connectivity Provided by an NMC 2-2 Setting the RS-232/RS-423 Jumpers (DMM and DMM-EC) 3-2 Setting the RS-232/RS-423 Jumpers (Advanced DMM/Controller Module) 3-3 Installing a CoreBuilder 5000 Ethernet Network Monitor Card 3-4 Installing a CoreBuilder 5000 Token Ring NMC 3-5 DMM-EC and DMM Front Panels 3-8 Advanced DMM/Controller Module Front Panel 3-9 DMM In-band Connectivity Process 4-17 Backplane Path Use 5-5 CoreBuilder 5000 Token Ring Network Mode 5-7 Alarm Thresholds 8-21 Multicast Packet Path Before Snooping 12-2 Format of an IGMP Version 1 Message 12-3 Multicast Packet Path after Snooping 12-3 FTE DRAM Address Forwarding Entry 12-5 Module Component Side View B-1 Installing a DRAM Memory Card B-2

2-1

3-1

3-2

3-3

3-4

3-5

3-6

3-7

3-8

4-1

4-2

4-3

5-1

5-2

5-3

5-4

5-5

9-1

9-2

9-3

9-4

9-5

9-6 10-1 10-2 10-3 10-4 13-1 13-2 13-3 13-4

A-1 A-2 A-3 A-4 A-5

ABLES

How to Use This Guide 1

Graphic Conventions 2

Text Conventions 3

ONline Management Modules in a CoreBuilder 5000 Hub 2-4 DMM Status LED Description 3-10 DMM LED Display 3-10 Interpretation of Ethernet Status LEDs 3-11 Console Port Pinouts 3-12 Auxiliary Port Pinouts 3-12 RS-232 9-Pin to 9-Pin Cable Connection Pin Assignments 3-13 RS-232 9-Pin to 25-Pin Cable Connection Pin Assignments 3-13 Modem Commands Required for Console Ports 3-14 Quick Reference for Configuring the DMM 4-2 Terminal Defaults and DMM Options 4-2 SHOW LOGIN Display Descriptions 4-8 SNMP Access Rights for Community Tables 5-3 Fast Ethernet Channel Assignment Effect on Backplane Channel 5-6 ONline Module Compatibility Settings 5-11 CoreBuilder 5000 Compatibility Settings 5-11 Script File Header Fields 5-22 Surrogate Status Options 9-4 Surrogate Status Fields 9-4 REM Options 9-6 CRS Status Table Entries 9-12 CRS Station Options 9-12 Ring Station Configuration Settings 9-13 Ethernet Statistic Types 10-1 Typical Symptoms of Common Ethernet Network Problems 10-4 Isolating Errors 10-6 Non-Isolating Errors 10-7 Power-up Troubleshooting 13-1 Download Troubleshooting 13-2 DMM Terminal Interface Suggestions 13-3 DMM Trap Message Fields 13-5 DMM and DMM-EC General Specifications A-1 A/DMM General Specifications A-2 DMM, DMM-EC, and A/DMM Power Specifications A-2 DMM, DMM-EC, and A/DMM Environmental Specifications A-2 DMM, DMM-EC, and A/DMM Mechanical Specifications A-2

A-6 A-7 A-8

A-9 A-10 A-11 A-12 A-13 A-14 A-15 A-16 A-17

B-1

ENMC General Specifications A-3 ENMC Power Specifications A-3 ENMC Environmental Specifications A-3 ENMC Mechanical Specifications A-3 A-ENMC General Specifications A-3 A-ENMC Power Specifications A-3 A-ENMC Environmental Specifications. A-4 A-ENMC Mechanical Specifications A-4 TR-NMC General Specifications A-4 TR-NMC Power Specifications A-4 TR-NMC Environmental Specifications A-4 TR-NMC Mechanical Specifications A-4 RMON Table Entries Allowed with Various DRAM Configurations B-3

BOUT

HIS

UIDE

Introduction

Audience

How to Use This Guide

This guide provides instructions for installing and using the 3Com CoreBuilder guide as the DMM), the CoreBuilder 5000 Advanced DMM (referenced throughout this guide as the A/DMM), and Network Monitor Cards (referenced throughout this guide as NMCs), and provides troubleshooting guidelines. All references to DMM in this guide apply to both the DMM and A/DMM except where specifically noted. For detailed information about the module’s command-line interface, see

CoreBuilder 5000 Distributed Management Module Commands Guide

the

If the information in the release notes that are shipped with your product differs from the information in this guide, follow the release note instructions.

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

■

Network manager or administrator

■

Hardware installer

Table 1 shows the location of specific information.

Ta b l e 1

If you are looking for Turn to

The principal features of the DMM and the 3Com CoreBuilder®5000 Integrated System Hub management architecture

An explanation of choices for implementing the CoreBuilder 5000 Integrated System Hub management architecture

Illustrated procedures for installing the DMM and NMCs into the CoreBuilder 5000 Integrated System Hub

A description of how to set up and use the DMM to manage the CoreBuilder 5000 Integrated System Hub and its modules

An explanation of how to use the DMM to configure and monitor your network

An explanation of how to use the DMM implementation of the BOOTP bootstrap protocol

An explanation of how to use the DMM power management feature to control power usage in your hub

5000 Distributed Management Module (referenced throughout this

How to Use This Guide

Chapter 1

Chapter 2

Chapter 3

Chapter 4

Chapter 5

Chapter 6

Chapter 7

BOUT THIS GUIDE

Ta b l e 1

If you are looking for Turn to

A description of how to use DMM statistics, including RMON, to troubleshoot network problems and analyze network performance

An explanation of DMM command-line implementation of the Ring Error Monitor and the Configuration Report Server

A description of how to interpret statistics that the DMM collects

An explanation of in-band and out-of-band software downloading procedures for all modules in the hub

An explanation of the Internet Group Management Protocol (IGMP)

Help in isolating and correcting problems that may occur during the installation process and during normal operation

Descriptions of electrical, environmental, and mechanical specifications

An explanation of how to install an Expansion Memory Card on the Advanced DMM/Controller Module

Methods for contacting the 3Com technical support organization and for accessing other product support services

How to Use This Guide (continued)

Chapter 8

Chapter 9

Chapter 10

Chapter 11

Chapter 12

Chapter 13

Appendix A

Appendix B

Appendix C

Conventions

Table 2 and Table 3 list conventions used throughout this guide.

Ta b l e 2

Icon Notice Type Alerts you to

Graphic Conventions

Information note Important features or instructions

Caution Risk of personal safety, system or network damage, or

loss of data

Warning Risk of severe personal injury

Conventions

Ta b l e 3

Convention Description

“Enter” vs. “Type” When the word “enter” is used in this guide, it means type

“Syntax” vs. “Command”

Text represented as

screen display

Text represented as

command s

Keys When specific keys are referred to in the text, they are called out by

Italics Italics

Text Conventions

something, then press the Return or Enter key. Do not press the Return or Enter key when an instruction simply says “type.”

“Syntax” indicates that the general form of a command syntax is provided. You must evaluate the syntax and supply the appropriate port, path, value, address, or string. For example:

Enable RIPIP by using the following syntax:

SETDefault !< port> -RIPIP CO NTrol = Listen

In this example, you must supply a port number for !<port>.

“Command” indicates that all variables in the command have been supplied and you can enter the command as shown in text. For example:

Remove the IP address by entering the following command:

SETDefault !0 -IP NETaddr = 0 .0.0.0

This guide always provides the full form of a command in uppercase and lowercase letters. However, you can abbreviate commands by entering only the uppercase letters and the appropriate value. Commands are not case-sensitive.

This typeface

terminal screen. For example:

NetLog in: This typeface

For example:

SETDefault !0 -IP NETaddr = 0 .0.0.0

their labels, such as “the Return key” or “the Escape key,” or they may be shown as [Return] or [Esc].

If two or more keys are to be pressed simultaneously, the keys are linked with a plus sign (+). For example:

Press [Ctrl]+[Alt]+[Del].

is used to represent displays that appear on your

is used to represent commands that you enter.

are used to denote

new terms

emphasis

BOUT THIS GUIDE

DMM Overview

■

CoreBuilder 5000 Distributed Hub Management

■

Network Management Functions

DMM Overview

The DMM is an SNMP-based network management module that manages and controls the 3Com CoreBuilder 5000 hub and its modules. DMM has the following features:

■

Distributed Hub Management Architecture

management architecture that:

Consolidates media management in a single card

■

Distributes network monitoring across a series of 3Com network monitor

■

cards (NMCs). NMCs attach to either:

– The carrier portion of the DMM with Ethernet carrier (ENMC only)

– Any CoreBuilder 5000 media module installed in the hub

Provides all controller functions, as well as DMM functions with

■

performance enhancements.

The protocol-specific Ethernet, Fast Ethernet, or Token Ring network monitor cards provide the DMM with network connectivity, gather statistics, and report statistics to the protocol-independent DMM.

The management architecture supports redundancy at all levels, including NMCs. NMCs support N+1 redundancy, which means that you can monitor all active networks, and have fault-tolerance for all network monitoring, by installing N (the number of networks) + 1 NMCs. If one of the active NMCs fails, a single backup NMC automatically takes over.

— Provides a cost-efficient

To avoid system problems, you must upgrade all of the SwitchModules installed in your chassis to v3.0, and all of the DMMs and A/DMMs installed in your chassis to v6.0.

1-2

HAPTER

1: I

NTRODUCTION

■

Intelligent Power Management

— Works with the fault-tolerant controller module to protect network integrity using power management. The DMM manages power use in the hub by:

Allowing you to prioritize the order in which modules power down (if there

■

is insufficient power available)

Preventing newly installed modules from receiving power when there is not

■

enough power available

Allowing you to implement fault-tolerant power, which allows the hub to

■

reserve some of its power capacity to protect against a power supply failure

■

Multi-Segment, Multi-Protocol Backplane Support

4 Fast Ethernets

■

8 Ethernets

■

17 Token Rings

■

8 FDDI rings

■

CoreBuilder 5000 and ONline Module Support

— Supports up to:

— All 3Com ONline System Concentrator modules are compatible with the CoreBuilder 5000 hub with a simple adapter kit. After they are installed, ONline modules use CoreBuilder 5000 hub power, extended management, and fault-tolerance capabilities.

™

Because CoreBuilder 5000 Token Ring modules use a more efficient signaling scheme than ONline Token Ring modules, the two module types cannot communicate over the hub backplane. You can connect modules using trunk ports.

■

CoreBuilder 5000 SwitchModule Support

— All 3Com CoreBuilder 5000 SwitchModules are compatible with the CoreBuilder 5000 hub. CoreBuilder 5000 SwitchModules are a suite of high-performance LAN-switching modules for the 3Com CoreBuilder 5000 hub. SwitchModules are available in single-slot or dual-slot configurations.

To ensure reliability, each SwitchModule contains its own switching ASIC and management processor. No central point of failure exists across SwitchModules, because if one SwitchModule is disabled, the other SwitchModules continue to operate normally.

To manage and configure the SwitchModules, you must use DMM software Version v6.0 or higher.

DMM Overview1-

■

CoreBuilder 5000 FastModule Support

— FastModules are high-performance LAN-switching modules for the 3Com CoreBuilder 5000 hub. Based on the BRASICA ASIC, FastModules extend full wire-speed switching to the backbone, enabling you to provide your users with greater bandwidth, faster throughput, and high-speed connections.

■

24-port 10BASE-T FastModules provide workgroup PCs with direct or shared Ethernet connectivity to any one of four CoreBuilder 5000 FastChannel backplane networks. The 24-port 10BASE-T with 100BASE-FX Downlink FastModule provides an additional 100BASE-FX port for connection to Fast Ethernet backbone networks.

The following FastModules support collapsed Fast Ethernet backbones and large central server farms:

7-port 100BASE-FX/TX FastModule

■

100BASE-FX Downlink FastModule (with an optional FX, TX, or ATM

■

downlink port)

The 100BASE-FX/TX FastModule provides seven Fast Ethernet connections to any one of four CoreBuilder 5000 FastChannel backplane networks. When you use these FastModules in conjunction with other CoreBuilder 5000 FastModules, you can create backbone and floor configurations based on shared and switched Fast Ethernet and Ethernet.

The 100BASE-FX Downlink FastModule consolidates traffic from up to four CoreBuilder 5000 FastChannel backplane networks and three Ethernet backplane segments within a single CoreBuilder 5000 hub. The 100BASE-FX front panel port provides downlink connections into a switched backbone network. Three daughter card options are available, providing one additional downlink port using 100BASE-FX, 100BASE-TX, and 155 Mbps ATM technology.

■

CoreBuilder 5000 ATM Backbone SwitchModule Support

— CoreBuilder 5000 ATM Backbone SwitchModule is a dual-slot module that translates packet-switched network frames to ATM-based cells. The module uses LEC (LAN Emulation Client) capabilities to provide ATM backbone connectivity for CoreBuilder 5000 virtual bridges. The ATM SwitchModule supports 64 LECs (virtual ports).

The ATM Backbone SwitchModule works in tandem with the CoreBuilder 5000 SwitchModules.

■

CoreBuilder 5000 12-port 100BASE-TX Workgroup FastModule Support

— The CoreBuilder 5000 12-port 100BASE-TX FastModule is a single-slot, module switching module that supports:

Up to 4 fast Ethernet backplane channels

■

One isolated channel

■

The 12-port 100BASE-TX Workgroup FastModule provides 12 RJ-45 connectors so that you can connect network devices to microsegmented Fast Ethernet LANs using unshielded or shielded twisted-pair cabling, reducing traffic congestion. This module is ideal for workgroups that require high-speed networking.

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CoreBuilder 5000 Distributed Hub Management

CoreBuilder 5000

Management System

Components

This section contains:

■

CoreBuilder 5000 Management System Components

■

Ethernet Network Monitor Card Description

■

Advanced Ethernet Network Monitor Card Description

■

Token Ring Network Monitor Card Description

■

Example DMM Application

The CoreBuilder 5000 management system consists of the following components:

■

Distributed Management Module (DMM)

— The DMM consolidates media management for all media modules, regardless of network communications protocol, onto a single card.

■

Advanced DMM/Controller Module (A/DMM)

— The Advanced DMM/Controller Module (A/DMM) provides DMM functions with performance enhancements, as well as hub controller functions, on a module that is installed in one of the controller bay slots in the CoreBuilder 5000 hub.

■

DMM with Ethernet Carrier (DMM-EC)

— The DMM-EC provides DMM functions and supports the attachment of up to six Ethernet network monitor cards.

■

Network Monitor Cards

— The management system distributes network

monitoring across a series of network monitor cards (NMC):

CoreBuilder 5000 Ethernet Network Monitor Card (ENMC)

■

CoreBuilder 5000 Token Ring Network Monitor Card (TR-NMC)

■

CoreBuilder 5000 Advanced Ethernet Network Monitor Card (A-ENMC)

■

An advanced network monitor card is a high-performance daughter card that, when it is installed on a CoreBuilder 5000 Ethernet media module or the DMM-EC, provides high-speed, multi-segmented monitoring capabilities.

Because the NMCs communicate with the DMM over a private management bus, you can attach the cards to either:

DMM with Ethernet carrier (which supports up to six Ethernet NMCs or

■

three A-ENMCs)

Any CoreBuilder 5000 media module

■

Network monitor cards provide network connectivity, and they gather and report statistics to an installed DMM.

CoreBuilder 5000 Distributed Hub Management1-

Advanced Ethernet Network Monitor Card

Distributed Management Module with Ethernet Card

Ethernet Network Monitor Cards

Figure 1-1 shows the DMM with Ethernet carrier, the location of an advanced Ethernet monitor card (A-ENMC) on the DMM, and Ethernet network monitor cards (ENMC).

Figure 1-1

CoreBuilder 5000 A/DMM with Ethernet Carrier, an Advanced Ethernet

Network Montior Card, and Ethernet Network Monitor Cards

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Controller Module

Network Monitor Card

Distributed Management Module

Network Monitor Card

Media Module

Backplane

Segment 1

Management Bus

Segment 2

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Figure 1-2 provides an overview of CoreBuilder 5000 hub management.

Figure 1-2

CoreBuilder 5000 Network Management Architecture

In the hub:

■

The controller module exchanges information with all modules through the management bus.

■

The DMM uses the management bus to send commands to all hub modules and to collect information from network monitor cards and media modules.

■

Network monitor cards monitor traffic on LAN segments and report the data to the DMM using the management bus. You must install one NMC for each network that you are monitoring. You can install ENMCs on either a DMM with Ethernet carrier or on media modules.

■

Media Modules manage data on LAN segments and receive commands from the DMM through the management bus.

CoreBuilder 5000 Distributed Hub Management1-

Ethernet Network

Monitor Card

Description

Advanced Ethernet

Network Monitor Card

Description

CoreBuilder 5000 Ethernet Network Monitor Cards (ENMCs):

■

Monitor activity on Ethernet networks

■

Report this information to the protocol-independent Distributed Management Module (DMM)

ENMCs reside on CoreBuilder 5000 Ethernet media modules or on the carrier portion of the DMM-EC.

The ENMC has the following features:

■

Uses the high-speed management bus of the CoreBuilder 5000 hub to communicate network management information from an Ethernet segment to the DMM

■

Provides full compliance with the industry-standard RMON MIB (Internet RFC 1757) to gather RMON-based statistics for modules in the CoreBuilder 5000 hub

■

Supports N+1 redundancy for fault tolerance, which automatically alerts you to changes in network operation

The Advanced Ethernet Network Monitor Card (A-ENMC), provides more processing power than the ENMC. The card employs a Motorola 68040 CPU rated at approximately 20 MIPS to provide adequate processing capability for CPU-intensive RMON applications. The card also supports upgradable RAM to allow for larger statistics tables.

To make full use of the card’s processor, the card hosts two network interfaces. The A-ENMC requires two CoreBuilder 5000 daughter card connections to provide these interfaces.

You can use the A-ENMC on a motherboard that has only one daughter card connector. When you use the A-ENMC on a single-connector motherboard, only one A-ENMC interface is available for use.

If you back up an A-ENMC with an ENMC, features from the A-ENMC (for example, security feature) are not supported. If you want A-EMNC full-feature functionality, then use an A-EMNC for the n + 1 redundancy function.

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Token Ring Network

Monitor Card

Description

CoreBuilder 5000 Token Ring Network Monitor Cards (TR-NMCs):

■

Monitor activity on Token Ring networks

■

Report this information to the protocol-independent distributed management module (DMM)

Each card manages one Token Ring segment. Unlike ENMCs, TR-NMCs reside only on CoreBuilder 5000 Token Ring Media Modules.

The TR-NMC has the following features:

■

Uses the high-speed management bus of the CoreBuilder 5000 hub to communicate network management information from a Token Ring segment to the DMM

■

Complies with the industry-standard IEEE 802.5 MIB (Internet RFC 1231) for Token Ring networks

■

Complies with the industry-standard RMON-MIB (Internet RFCs 1757 and 1513) to gather RMON-based statistics for networks in the CoreBuilder 5000 hub

■

Includes Configuration Report Server and Ring Error Monitor functionality to automatically alert you to changes in ring status, configuration, and performance

■

Uses REM functionality to track hard and soft errors on the ring

Example DMM

Application

■

Supports N+1 redundancy for fault tolerance, which automatically alerts you to changes in network operation

If a hub has five Ethernet segments and you want to monitor all five segments simultaneously, the hub requires:

■

One DMM-EC (with a second DMM if you want a backup for fault-tolerance)

■

Five Ethernet network monitor cards (six if you want a standby NMC for fault-tolerance)

You can locate network monitor cards either on a DMM equipped with a carrier option (DMM-EC, for example), or on CoreBuilder 5000 Ethernet media cards. Token Ring NMCs reside on media modules only.

Network Management Functions1-

Network Management Functions

The DMM provides the following management and control capabilities:

■

Configurations

— When you are logged in using the administrator or super user password, you can configure the DMM, as well as network, module, port, and terminal settings.

■

Staging

— Both the DMM and the media cards save configuration information. Media cards retain configurations when moved between slots or hubs. Because of this functionality, you can configure modules at a central location.

■

DMM Redundancy

— DMMs can trade configuration information, so that standby DMMs have the same configuration as the active DMM. This allows standby DMMs to become functional in the event of a failure in the active DMM.

■

Port Grouping

— DMM supports Port Grouping, so that you can assign sets of ports to groups. You can then use the group names to manage these sets of ports simultaneously.

■

Inventory

— The DMM provides a complete inventory of hub contents, including fans and power supplies. The inventory lists current software revisions for all installed modules. The Inventory system also supports a scratchpad feature so that you can add custom information to the DMM display.

■

Fault, Performance, and Traffic Monitoring

— You can set the DMM to continuously monitor and report key statistics using the MONITOR command. The statistics on the screen are updated periodically to give a snapshot of the network. DMM also supports Ethernet repeater statistics without requiring an NMC card

■

CoreBuilder 5000 Token Ring MAC-Address-to-Port Security

— The DMM can secure your network by comparing station adapter card MAC addresses against a table that you create. The DMM monitors traffic on each port and performs the action that you specify when it detects a station whose MAC address is not included in the table. This process works for Token Ring modules only.

■

Scripting and Scheduling

— You can create command scripts that execute a series of user-specified DMM commands. You can also schedule command scripts to run at predetermined times using the DMM scheduling feature.

■

Power Management

— You can use DMM commands to manage how the hub handles low power situations. The hub can also provide fault-tolerant power, which protects against power supply failures.

■

In-band and Out-of-Band Download

— The DMM provides both in-band and out-of-band downloads. In-band download uses TFTP (Trivial File Transfer Protocol). Out-of-band download uses XMODEM software and the RS-232 serial port on the front panel of the DMM. You can download to multiple modules using a single command.

■

SNMP Support

— SNMP (Simple Network Management Protocol) is a protocol defined by the Internet Engineering Task Force (IETF). The DMM acts as an agent in an SNMP-managed environment. The agent responds to SNMP requests and generates SNMP traps.

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■

Telnet Support

— You can use the DMM TELNET command to connect a DMM to any other Telnet device. DMM also supports incoming Telnet sessions so that you can manage a DMM from a workstation with Telnet support or from another DMM.

■

SLIP Protocol Support

— Serial Line Interface Protocol (SLIP) provides a secondary means (using the console port) of connecting the DMM agent to a hub management network management platform (CoreBuilder 5000 Manager NCS for UNIX, for example).

■

BOOTP Protocol Support

— BOOTP allows the DMM to request and download files at startup that configure both new and restarted DMMs automatically.

■

REM and CRS Support

— Ring Error Monitor (REM) observes, collects, and analyzes software error conditions. Configuration Report Server (CRS) accepts commands from IBM LAN manager to get station information, set station parameters, and remove stations from the ring.

■

RMON Support

— Remote network monitoring (RMON) provides standards-based SNMP network monitoring functions for use with management consoles and remote monitors.

■

Dynamically Loadable Modules (DLMs)

support CoreBuilder 5000 Manager LANsentry

— DMM Version v4.0 and later

Dynamically Loadable Modules (DLMs). You must have CoreBuilder 5000 Manager LANsentry software and the A-ENMC to take advantage of the DLM feature. See the

CoreBuilder 5000 Manager LANsentry Advanced Application User Guide

more information on using DLMs.

for

+ 188 hidden pages

3com CoreBuilder 5000 Distributed Management Module User Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Introduction

Audience

How to Use This Guide

Conventions

Related Documents

3Com Documents

Reference Documents

DMM Overview

Network Management Functions