Filter
Top Products
CHAPTER
FINAL DRAFT —Cisco Confidential
6-1
Cisco ASR 9000 Series Aggregation Services Router Getting Started Guide
OL-17502-01
6
Troubleshooting the Cisco IOS XR Software
This chapter offers tools and procedures that identify the source of hardware and software problems.
This chapter also provides instructions on gathering data for further analysis by Cisco customer support .
Contents
• Additional Sources for Information, page 6-1
• Basic Troubleshooting Commands, page 6-1
• Configuration Error Messages, page 6-6
• Memory Warnings in Configuration Sessions, page 6-7
• Interfaces Not Coming Up, page 6-11
Additional Sources for 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.
• The Cisco Technical Assistance Center (Cisco 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
• The “Related Documents” section on page viii.
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 6-2
• Using the ping Command, page 6-2
• Using the traceroute Command, page 6-3