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Table of Contents

About This Manual

About This Manual

This section introduces the Debug Command Reference publication audience and scope, organization, use, and conventions.

Audience and Scope

This publication addresses the network or system administrator who will maintain a Cisco gateway, router, or bridge running Internetwork Operating System (IOS) Release 10 and earlier software.

Readers should know how to configure a Cisco router and should be familiar with the protocols and media their routers have been configured to support. It is also important that they be aware of their network topology.

Document Organization and Use

The Debug Command Reference publication provides information about using debug commands to troubleshoot Cisco network servers. This manual is most effective when used in conjunction with the Troubleshooting Internetworking Systems publication.

Chapter 1, "Using Debug Commands," explains how you enter debug commands, use the debug ? and debug all commands, and generate and redirect debug command output. It is important that you read this chapter first before proceeding to Chapter 2, "Debug Commands."

Chapter 2, "Debug Commands," presents reference information on commands that you can use as tools to debug your internetwork. Descriptions of the uses of these commands, sample output displays, and explanations of these displays are included.

Appendix A, "X.25 Cause and Diagnostic Codes," lists the codes that can appear in output from the debug x25, debug x25-events, and debug x25-vc commands.

Appendix B, "ISDN Switch Types, Codes, and Values," lists the supported switch types. It also contains the cause codes, cause values, bearer capability values, and progress values that can appear in output from the debug isdn-q921, debug isdn-q931, and debug isdn-event commands.

Document Conventions

The command descriptions in this manual use these conventions:

The samples use these conventions:

This publication also uses the following conventions:


Note Means reader take note. Notes contain helpful suggestions, or reference to materials not covered in this manual.
Caution Means reader be careful. In this situation, you might do something that could result in equipment damage or loss of data.

The following illustration explains the fields on a typical command reference page:



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