3COM 5000 ATM User Manual

CoreBuilder® 5000 ATM

Backbone SwitchModule User Guide

http://www.3com.com

Part Number 10013037 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.

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ONTENTS

BOUT THIS GUIDE

Introduction 1 Audience 1 How to Use This Guide 1 Conventions 2 Related Documents 3

3Com Documents 3 Reference Documents 4 SNMP and MIB-Based Information 4 ATM and LAN Documents 5

NTRODUCTION

ATM Backbone SwitchModule Overview 1-1

ATM Backbone SwitchModule Features 1-1

Seamless ATM Migration 1-1 Multiple Redundancy Levels 1-2 ATM Forum Specification Compliance 1-2 CoreBuilder 5000 Chassis Compatibility 1-2 Switched Virtual Circuit Capacity 1-2 Emulated LAN (ELAN) Capacity 1-2

Hot Swap Feature 1-3 Supported CoreBuilder 5000 SwitchModules 1-3 Supported Management Standards 1-4

ATM Backbone SwitchModule Architecture 1-4

Management Processor 1-5 Packet Switch Processor 1-5 Primary ATM OC-3 Card 1-5 Redundant ATM OC-3 Card 1-5

ATM Backbone SwitchModule Descriptions 1-6

Base Hardware Configuration 1-6 Redundant Hardware Configuration 1-7

PacketChannel Backplane Description 1-8

Slot Restrictions Per Backplane 1-8

Sample ATM Backbone SwitchModule Configurations 1-10

Basic Configuration 1-10 Dual-Homing Configuration 1-11 Dual-Homing/Module Redundancy

Configuration 1-12

LAN E

General Definition of LAN Emulation 2-1 LAN Emulation Components 2-3

LAN Emulation Data Exchange 2-5

LAN Emulation Connections 2-7

LAN Emulation Operation 2-9

MULATION OVERVIEW

General LANE Components 2-3

LAN Emulation Client (LEC) 2-3 LAN Emulation Configuration Server (LECS) 2-3 LAN Emulation Server (LES) 2-3 Broadcast and Unknown Server (BUS) 2-4

ATM Backbone SwitchModule LANE Components 2-4

Bridgeport-LEC 2-4 Virtual Bridge (vbridge) 2-5 Emulated LAN (ELAN) 2-5

Protocol Stacks 2-5 Packets Versus Cells 2-6

Control VCCs 2-7 Data VCCs 2-8

Initialization 2-9 LECS Connection 2-10 Configuration 2-10 Joining 2-10 BUS Connection 2-11 Data Movement 2-11

ONFIGURING THE

Configuration Tools 3-1

Distributed Management Module 3-2 Advanced Management Tools 3-2

Transcend Network Control Services for UNIX 3-2

Transcend Network Management Software for Windows 3-3

Third-Party SNMP-Based Tools 3-4

Setting Up DMM Access 3-5

Setting Up Direct Terminal Access to the DMM 3-5 Configuring TELNET Access to the DMM 3-5

Configuration Process Overview 3-6

Configuration Components 3-6

LAN Emulation Configuration 3-6

Bridge Configuration 3-6

ATM Configuration 3-7 Configuration Defaults 3-7

Configuring LAN Emulation Parameters 3-8

Automatic Bridgeport-LEC Configuration Mode 3-8

Manual Bridgeport-LEC Configuration Mode 3-8

Verifying Bridgeport-LEC Status 3-9

Configuring ATM OC-3 Card Redundancy 3-9 Configuring IGMP Snooping Parameters 3-10

ATM B

ACKBONE SWITCHMODULE

TATUS MONITORING AND STATISTICS

Using DMM/ADMM Commands 4-1

SHOW VBRIDGE 4-2

Displaying General Vbridge Configuration Information 4-2

Displaying Detailed Vbridge Configuration Information 4-3

Displaying IGMP Snooping Vbridge Information 4-4 SHOW MODULE 4-5 SHOW BRIDGE_PORT 4-6

Displaying General Status Information 4-6

Displaying Detailed Information 4-7 SHOW COUNTER BRIDGE_PORT 4-8 SHOW ATM 4-9

ATM Interface Parameters 4-9 ATM ILMI Configuration 4-10 ATM Q93b Parameters 4-10 ATM QSAAL Parameters 4-11 ATM Signal Configuration 4-11 ATM Statistics 4-12 ATM Traffic Description 4-12 ATM VCCs 4-13 SHOW BPORT_LEC 4-13 BPORT_LEC Configuration 4-14 BPORT_LEC Statistics 4-15 BPORT_LEC Status 4-15 BPORT_LEC Server Circuits 4-16 BPORT_LEC

LE_ARP Table 4-16 SHOW SONET 4-17 SHOW SONET Status 4-17 SHOW SONET Statistics 4-18 SHOW IGMP SNOOPING 4-19

Using Graphical Interface Tools 4-20

CoreBuilder 5000 Manager 4-20 Device Management for Hubs 4-21 VLAN Manager 4-21 LANE Manager 4-21

NTERNET GROUP MANAGEMENT PROTOCOL

NOOPING

Overview 5-1 CoreBuilder 5000 Support 5-6 Locating Multicast Routers in the Network 5-6 No Multicast Routers on the Network 5-6 Enabling IGMP Snooping on CoreBuilder 5000 SwitchModules 5-7

(IGMP)

ROUBLESHOOTING

Troubleshooting Using LEDs 6-1

Troubleshooting Base Module LEDs 6-1

Verifying Base Module LED Operation 6-1

Reading the Base Module LEDs 6-2

Determining Corrective Action 6-3 Troubleshooting ATM OC-3 Card LEDs 6-4

Recovering from Problems 6-5

Verifying DMM Communication 6-5 Verifying Software Versions 6-6 Verifying Critical Parameters 6-7 Verifying ATM OC-3 Card Functions 6-7 Verifying ATM Signaling Functions 6-8 Verifying LEC Functions 6-9 Verifying Bridging Configuration 6-11 Verifying Data Movement 6-11 Verifying ATM OC-3 Switchover 6-12

Resetting the ATM Backbone SwitchModule 6-12

Using the Reset Button 6-12

Obtaining Technical Assistance 6-13

PECIFICATIONS

Environmental Specifications A-1 Mechanical Specifications A-1 Power Specifications A-2 ATM OC-3 Card Fiber Optic Specifications A-2

ECHNICAL SUPPORT

Online Technical Services B-1

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

Access by Analog Modem B-2 Access by Digital Modem B-3

3Com Facts Automated Fax Service B-3 Support from Your Network Supplier B-3 Support from 3Com B-3 Returning Products for Repair B-5

NDEX

3COM C

ORPORATION LIMITED WARRANTY

IGURES

ATM Backbone SwitchModule Hardware Components 1-4

1-1

ATM Backbone SwitchModule Base Configuration 1-6

1-2

ATM Backbone SwitchModule with Redundant ATM OC-3 Card 1-7

1-3

Example Base Configuration 1-10

1-4

Example Dual-Homing Configuration 1-11

1-5

Example Dual-Homing/Module Redundancy Configuration 1-12

1-6

LAN Emulation Function 2-2

2-1

ATM Backbone SwitchModule Function 2-2

2-2

General LAN Emulation Components 2-3

2-3

ATM Backbone SwitchModule LANE Components 2-4

2-4

LAN Emulation Protocol Stacks 2-5

2-5

Converting SwitchModule Packets to and from ATM Cells 2-6

2-6

Control VCCs in ATM Backbone SwitchModule LAN Emulation 2-7

2-7

Data VCCs in ATM Backbone SwitchModule LAN Emulation 2-8

2-8

UNIX Tools for Configuring ATM Backbone SwitchModules 3-3

3-1

Windows Tools for Configuring ATM Backbone SwitchModules 3-4

3-2

Multicast Packet Path before Snooping 5-3

5-1

Format of an IGMP Version 1 Message 5-4

5-2

Multicast Packet Path after Snooping 5-4

5-3

FTE DRAM Address Forwarding Entry 5-8

5-4

ABLES

Notice Icons 2

Text Conventions 2

Supported Standards and MIBs 1-4

1-1

SwitchModule Installation Per Backplane 1-8

1-2

Other Vbridge IGMP Snooping Options 4-4

4-1

Base Module LED Status 6-2

6-1

Base Module LED Corrective Actions 6-3

6-2

ATM OC-3 Card LED Corrective Actions 6-4

6-3

Environmental Specifications A-1

A-1

Mechanical Specifications A-1

A-2

Power Specifications A-2

A-3

ATM Backbone SwitchModule Fiber Optic Specifications A-2

A-4

BOUT

HIS

UIDE

Introduction

Audience

How to Use This Guide

This guide describes how to install, configure, and manage the 3Com CoreBuilder

If the information in the release notes 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

■

Trained hardware installer or service personnel

The following table shows the location of specific information:

If you are looking for: Tu r n t o :

ATM Backbone SwitchModule features, descriptions, and example configurations

An overview of LAN Emulation concepts, components, and operation

Information on configuring ATM Backbone SwitchModules Chapter 3

Information on monitoring ATM Backbone SwitchModule operation

Information about Information Group Management Protocol (IGMP) snooping

Information on troubleshooting ATM Backbone SwitchModule LEDs, management problems, and resetting ATM Backbone SwitchModules

Detailed ATM Backbone SwitchModule specifications Appendix A

3Com technical support information Appendix B

5000 ATM Backbone SwitchModule.

Chapter 1

Chapter 2

Chapter 4

Chapter 5

Chapter 6

BOUT THIS GUIDE

Conventions

The following tables list conventions used throughout this guide:

Table 1

Icon Ty p e Description

Table 2

Convention Description

Enter vs. Type When the word

Syntax vs. Command

Notice Icons

Information Note Information notes call attention to important features

or instructions.

Caution Cautions alert you to personal safety risk, system

damage, or loss of data.

War ning Warnings alert you to the risk of severe personal injury.

Text Conventions

enter

something, then press the Return or Enter key. Do not press the Return or Enter key when instructed to

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 CONTrol = Listen

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

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

For consistency and clarity, the full-form syntax (upperand lowercase letters) is provided. However, you can enter the abbreviated form of a command by typing only the uppercase portion and supplying the appropriate port, path, address, value, and so on. You can enter the command in either upper- or lowercase letters at the prompt.

indicates that all variables in the command

is used in this guide, it means type

type

ATM Backbone SwitchModule Overview

This chapter describes the features and components of the 3Com CoreBuilder Backbone SwitchModules operate.

This chapter contains the following sections:

■

ATM Backbone SwitchModule Overview

■

ATM Backbone SwitchModule Architecture

■

ATM Backbone SwitchModule Descriptions

■

PacketChannel Backplane Description

■

Sample ATM Backbone SwitchModule Configurations

CoreBuilder 5000 ATM Backbone SwitchModules are high-performance LAN-switching modules for the 3Com CoreBuilder 5000 Integrated System Hub.

This section describes:

■

ATM Backbone SwitchModule Features

■

Supported CoreBuilder 5000 SwitchModules

■

Supported Management Standards

5000 ATM Backbone SwitchModules and how ATM

ATM Backbone

SwitchModule

Features

ATM Backbone SwitchModules provide the following features.

Seamless ATM Migration

The ATM Backbone SwitchModule protects your investment in LAN equipment, wiring, and software by providing seamless LAN-to-ATM communication. You can connect existing Ethernet, Fast Ethernet, and FDDI legacy LANs with 155 Mbps ATM backbones.

1-2

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Multiple Redundancy Levels

You can configure the ATM Backbone SwitchModule for two levels of redundancy:

■

PHY Redundancy

— A secondary ATM OC-3 card provides PHY redundancy. If the primary ATM OC-3 card or attached cable fails or performance fails or is no longer receiving light, the redundant ATM OC-3 card becomes active to maintain operations, if PHY switchover is enabled.

■

Module Redundancy

— Adding a second ATM Backbone SwitchModule to the CoreBuilder 5000 hub in a dual-homing configuration allows you to load-balance ATM requirements while providing automatic module failover if one of the modules fails.

ATM Forum Specification Compliance

The ATM Backbone SwitchModule is fully compliant with the following ATM Forum specifications:

■

UNI 3.0/3.1

■

LANE 1.0

CoreBuilder 5000 Chassis Compatibility

You can install and operate the ATM Backbone SwitchModule in any CoreBuilder 5000 17-slot, 10-slot, or 7-slot chassis that contains a PacketChannel backplane.

Switched Virtual Circuit Capacity

Each ATM Backbone SwitchModule supports up to 512 simultaneous switched virtual circuit (SVC) connections.

Emulated LAN (ELAN) Capacity

Each ATM Backbone SwitchModule provides up to 64 LAN Emulation Clients (LECs) for connection to 64 Emulated LANs (ELANs). These virtual LANs can be managed using the 3Com Transcend

Enterprise VLAN Manager (v4.1 or later), a graphical interface tool that greatly simplifies the management of virtual and emulated LANs.

ATM Backbone SwitchModule Overview

Hot Swap Feature

You can insert or remove ATM Backbone SwitchModules without powering off the CoreBuilder 5000 chassis.

1-3

Supported

CoreBuilder 5000

SwitchModules

CoreBuilder 5000 ATM Backbone SwitchModules provide ATM connectivity for the following CoreBuilder 5000 SwitchModules:

■

2-Port DAS FDDI SwitchModule (3C96604M-F)

■

2-Port DAS FDDI SwitchModule (3C96604M-F-A)

■

4-Port 100BASE-FX SwitchModule (3C96604M-FX-A)

■

4-Port 100BASE-TX SwitchModule (3C96604M-TX-A)

■

10-Port 10BASE-F SwitchModule (3C96610M-F-ST)

■

10-Port 10BASE-F-A SwitchModule (3C96610M-F-A)

■

FDDI CONC (MIC) (3C96612M-FC-A)

■

10-Port 10BASE-T/DAS FDDI SwitchModule (3C96612M-FF-A)

■

12-Port 10BASE-T SwitchModule (3C96612M-TP)

■

12-Port 10BASE-T SwitchModule (3C96612M-TP-A)

■

12-Port 10BASE-T/DAS FDDI SwitchModule (3C96614M-FTP-A)

■

16-Port Ethernet Backplane SwitchModule (3C96616M-BTP-A)

■

18-Port Fast Ethernet 100BASE-T SwitchModule (3C96618M-TX-A)

■

20-port 10BASE-F SwitchModule (3C96620M-F-ST)

■

20-Port 10BASE-F SwitchModule (3C96620M-F-A)

■

20-Port Ethernet 10BASE-T SwitchModule (3C96620M-TP-A)

■

24-Port 10BASE-T SwitchModule (3C96624M-TP-A)

■

24-Port Telco SwitchModule (3C96624M-TPL-A)

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Supported

Management

Standards

ATM Backbone SwitchModule Architecture

CoreBuilder 5000 ATM Backbone SwitchModules support the standards and MIBs shown in Table 1-1.

Ta b le 1 - 1

Standards

MIBs

Supported Standards and MIBs

ATM Forum UNI 3.0/3.1 ATM Forum LANE 1.0 IEEE 802.1D (Spanning Tree) IEEE 802.1H (Translation) IEEE 802.3 SNMP (RFC 1157) Bridge MIB (RFC 1493) MIB II (RFC 1213) Interfaces MIB (RFC 1573) ATM MIB (RFC 1695) SONET MIB (RFC 1595) ATM Forum LEC MIB IANAIFTYPE MIB 3Com ISD MIB

This section describes the hardware components of the CoreBuilder 5000 ATM Backbone SwitchModule.

Figure 1-1 identifies the significant hardware components of the ATM Backbone SwitchModule.

CoreBuilder®5000 hub PacketChannel backplane

Figure 1-1

ATM Backbone SwitchModule

LAN Emulation

Packet Swit ch Processor

Management Processor

Primary ATM OC-3 card

Redundant ATM OC-3 card

ATM Backbone SwitchModule Hardware Components

155Mbps OC-3 multimode fiber

ATM Backbone SwitchModule Architecture

The significant hardware components of the ATM Backbone SwitchModule include:

■

Management Processor

■

Packet Switch Processor

■

Primary ATM OC-3 Card

■

Redundant ATM OC-3 Card

1-5

Management

Processor

Packet Switch

Processor

Primary ATM OC-3

Card

Redundant ATM OC-3

Card

The Management Processor performs processing functions that are not time critical. Its main functions include:

■

Network management

■

ATM signalling

■

ATM LAN emulation client (LEC) functions

■

Bridging functions

■

Forwarding table maintenance

The Packet Switch Processor performs time-critical processing functions such as packet forwarding.

The primary ATM OC-3 card provides a SONET PHY ATM interface operating at 155 Mbps on OC-3, multimode fiber over an SC-type connector. The maximum distance between links is 2 kilometers.

The redundant ATM OC-3 card is identical to the primary ATM OC-3 card. It becomes active in place of the primary ATM OC-3 card if any of the following characteristics are lost:

■

Light

■

Frame

■

Cell delineation

■

ATM signalling

■

ILMI (Integrated Local Management interface) channel information

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ATM Backbone SwitchModule Descriptions

Base Hardware

Configuration

This section describes the base and redundant hardware configurations of the ATM Backbone SwitchModule.

Figure 1-2 shows the ATM Backbone SwitchModule with only the primary ATM OC-3 card installed.

MOD-STAT

PACKETCHANNEL

RESET

Base Module (3C96602M-MOD)

ACTIVE

ALARM

6 6 0 1 D

-1 5 5 S C

-M M

Primary ATM OC-3 card included with base

6602-MOD

Figure 1-2

ATM Backbone SwitchModule Base Configuration

ATM Backbone SwitchModule Descriptions

1-7

Redundant Hardware

Configuration

Figure 1-3 shows the ATM Backbone SwitchModule with an optional redundant ATM OC-3 card installed.

MOD-STAT

PACKETCHANNEL

RESET

Base Module (3C96602M-MOD) includes primary ATM OC-3 card

6 6 0 1 D

-1 5 5 S

-M M

ACTIVE

ALARM

ACTIVE

ALARM

6 6 0 1 D

-1 5 5 S C

-M M

Redundant ATMOC-3 card (3C96601D-155SC-MM)

6602-MOD

Figure 1-3

See the

ATM Backbone SwitchModule with Redundant ATM OC-3 Card

CoreBuilder

and Reference

5000 ATM Backbone SwitchModule Quick Start

for how to install the redundant ATM OC-3 card.

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PacketChannel Backplane Description

An ATM Backbone SwitchModule installed in the CoreBuilder 5000 hub connects to the CoreBuilder 5000 PacketChannel backplane. There are two kinds of PacketChannel backplanes:

■

Standard PacketChannel

— Supports packet-switching. When you display hub information, the hub type is listed with the suffix -xP (x may be A or B) to identify this backplane, and the backplane type is listed as PacketChannel.

■

PacketChannel plus ATM Cell-Switching (SwitchChannel)

— Supports both packet-switching and ATM cell-switching. When you display hub information, the hub type is listed with the suffix -xC (x may be A or B) to identify this backplane, and the backplane type is listed as SwitchChannel.

Both the PacketChannel backplane and the packet-switching part of the SwitchChannel backplane:

■

Support LAN-switching technology.

■

Switch 3.4 million packets per second.

■

Provide a 2 Gigabit-per-second bus.

■

Are designed as a passive bus that contains no active components that can break down.

■

Occupy the third (upper) backplane slot of the CoreBuilder 5000 hub.

Slot Restrictions Per

Backplane

Ta b le 1 - 2

CoreBuilder 5000 Hub

17-Slot

SwitchModule Installation Per Backplane

Backplane Hub Type

PacketChannel (Part Number 30-0433)

SwitchChannel (Part Number 30-0430)

Some slot restrictions apply if the hub uses the SwitchChannel backplane or if the hub contains no backplane in the third backplane slot. Refer to Table 1-2 for information about ATM Backbone SwitchModule installation restrictions and operation.

3C96017C-AP 3C96017C-BP 3C96017CH-AP

3C96017C-AC 3C96017C-BC 3C96017CH-AC

SwitchModule Installation and Operation

Install ATM Backbone SwitchModule in any slot in the hub.

Install ATM Backbone SwitchModule in slots 1 through 8 or 13 through 17.

PacketChannel Backplane Description

1-9

Ta b le 1 - 2

CoreBuilder 5000 Hub

10-Slot

7-Slot

17-Slot, 10-Slot, or 7-Slot

* To verify the hub type, enter the DMM command SHOW HUB.

SwitchModule Installation Per Backplane (continued)

Backplane Hub Type

PacketChannel (Part Number 30-0432)

SwitchChannel (Part Number 30-0434)

PacketChannel (Part Number 30-0471)

No PacketChannel or SwitchChannel backplane

3C96010C-AP 3C96010C-BP 3C96010CH-AP

3C96010C-AC 3C96010C-BC 3C96010CH-AC

3C96007C-AP 3C96007C-BP 3C96007CH-AP

3C96017C-A 3C96017C-B 3C96010C-A 3C96010C-B 3C96007C-A 3C96007C-B

Refer to the

Operation Guide

CoreBuilder 5000 Integrated System Hub Installation and

for more information about CoreBuilder 5000 hub

backplanes.

SwitchModule Installation and Operation

Install ATM Backbone SwitchModule in any slot in the hub.

Install ATM Backbone SwitchModule in slots 1 through 8.

Install ATM Backbone SwitchModule in any slot in the hub.

Does not support ATM Backbone SwitchModule. Contact 3Com Technical Support for information on upgrading your CoreBuilder

5000 hub.

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Sample ATM Backbone SwitchModule Configurations

Basic Configuration

This section illustrates three basic configurations of the ATM Backbone SwitchModule:

■

Basic Configuration

■

Dual-Homing Configuration

■

Dual-Homing/Module Redundancy Configuration

Figure 1-4 illustrates the basic configuration of an ATM Backbone SwitchModule with only a primary ATM OC-3 card.

ATM Backbone SwitchModule

Primary ATM OC-3 LECs 1 to 64

Ethernet or FDDI SwitchModule

ELANs 1 to 64

ATM Switch

Figure 1-4

Example Base Configuration

See Chapter 2, LAN Emulation Overview, for a description of LAN Emulation components and operation.

Sample ATM Backbone SwitchModule Configurations

1-11

Dual-Homing

Configuration

Figure 1-5 illustrates the dual-homing configuration of an ATM Backbone SwitchModule with a redundant ATM OC-3 card.

ATM Backbone SwitchModule

Primary ATM OC-3 LECs 1 to 64

Redundant ATM OC-3

Ethernet or FDDI SwitchModule

ELANs 1 to 64

LECs 1 to 64

NNI

ATM Switch A

ELANs 1 to 64

ATM Switch B

Figure 1-5

Example Dual-Homing Configuration

If the loss of light, frame, or cell delineation is detected, the redundant ATM OC-3 card becomes active and the primary ATM OC-3 card is disabled.

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Dual-Homing/Module

Redundancy

Configuration

Figure 1-6 illustrates the dual-homing/module redundancy configuration of two ATM Backbone SwitchModules with redundant ATM OC-3 cards.

ATM Backbone SwitchModules

Ethernet or FDDI SwitchModule

Primary ATM OC-3 LECs 1 to 32

Redundant ATM OC-3 LECs 1 to 32

ELANs 1 to 64

Primary ATM OC-3 LECs 33 to 64

Redundant ATM OC-3 LECs 33 to 64

NNI

ATM Switch A

Figure 1-6

Example Dual-Homing/Module Redundancy Configuration

ATM Switch B

The LECs in the example configuration of Figure 1-6 can be manually distributed between the two ATM Backbone SwitchModules in any combination.

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