Troubleshooting guide

CHAPTER

1-1

ATM and Layer 3 Switch Router Troubleshooting Guide

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Troubleshooting Overview

This chapter gives a brief overview of the various areas where you might need troubleshooting and

contains the following sections:

• Using this Troubleshooting Guide, page 1-1

• General Model of Problem Solving, page 1-2

• Preparing for Network Failures, page 1-3

• Troubleshooting General Problems, page 1-3

Using this Troubleshooting Guide

This ATM and Layer 3 Switch Router Troubleshooting Guide describes troubleshooting procedures for

the following ATM switch routers:

• Catalyst 8540 MSR

• Catalyst 8510 MSR

• Catalyst 8540 CSR

• Catalyst 8510 CSR

• LightStream 1010

The Catalyst 8500 series and LightStream 1010 hardware and software provide flexibility and

performance in a single integrated ATM switch router. For example, your switch router could be

configured to provide Layer 3 enabled ATM functionality, delivered through the ATM router module

(ARM), which provides routing between ATM and Layer 3 interfaces on a single platform. Or, your

switch could be configured to function as a simple ATM backbone switch with no Layer 3 connectivity

at all.

To eliminate redundancy and allow you to quickly find your troubleshooting information, this guide is

separated into the following parts:

• Chapters 1 through 4 describe how to use this guide, troubleshooting tools, and example networks.

Theses chapters should be read first.

• Part 1 (Chapters 5 through 9) describes ATM-to-ATM connection troubleshooting.

• Part 2 (Chapters 10 through 12) describes Layer 3-to-Layer 3 connection troubleshooting.

• Part 3 (Chapter 13) describes Layer 3-to-ATM connection troubleshooting.

• Part 4 (Appendixes A through E) provides general information helpful for troubleshooting, and

information about technical support.