Troubleshooting The Cisco Ios Xr Software; Contents; Additional Sources Of Information; Basic Troubleshooting Commands - Cisco ASR 9000 Getting Started Manual

Troubleshooting the Cisco IOS XR Software

This chapter describes the tools and procedures used to identify the source of hardware and software
problems. This chapter also provides instructions on gathering data for further analysis by Cisco
customer support representatives.

Contents

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Additional Sources of Information

For additional information on troubleshooting, see the following sources:
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Basic Troubleshooting Commands

The following sections describe some basic techniques used to determine connectivity to another device
and display information on the configuration and operation of a router.
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OL-28417-02
Additional Sources of Information, page 135
Basic Troubleshooting Commands, page 135
Configuration Error Messages, page 143
Memory Warnings in Configuration Sessions, page 144
Interfaces Not Coming Up, page 148
If the Cisco IOS XR software does not start and display the EXEC mode prompt, see
Cisco ASR 9000 Series Aggregation Series Router ROM Monitor Guide.
Technical Assistance Center (TAC) home page, containing 30,000 pages of searchable technical
content, including links to products, technologies, solutions, technical tips, and tools. Registered
Cisco.com users can log in from this page to access even more content.
http://www.cisco.com/public/support/tac/home.shtml
"Related Documents" section on page
Using show Commands to Display System Status and Configuration, page 136
Using the ping Command, page 137
Using the traceroute Command, page 138
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