Cisco ASR 9000 User Manual

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Cisco ASR 9000 Series Aggregation Services Router Getting Started Guide
OL-28417-02
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
• 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
Additional Sources of Information
For additional information on troubleshooting, see the following sources:
• 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 x.
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.
• Using show Commands to Display System Status and Configuration, page 136
• Using the ping Command, page 137
• Using the traceroute Command, page 138

Cisco ASR 9000 Specifications

General

Brand	Cisco
Model	ASR 9000
Category	Network Router
Language	English