CHAPTER
1-1
Cisco IOS XR Troubleshooting Guide for the Cisco CRS-1 Router
OL-21483-02
1
General Troubleshooting
This chapter describes general troubleshooting techniques you can use to troubleshoot routers using
Cisco IOS XR software. This chapter includes the following sections:
• Troubleshooting Techniques and Approaches, page 1-1
• Verifying and Troubleshooting CLI Access, page 1-2
• Basic Cisco IOS XR Verification and Troubleshooting Tools, page 1-7
• Verifying the System, page 1-13
• Validating and Troubleshooting Cisco IOS XR Software Package Installation, page 1-27
• Validating and Troubleshooting Cisco IOS XR Software Configuration, page 1-35
• ASIC Errors, page 1-49
• Trace Commands, page 1-56
• Packets, page 1-57
• Logging Archive for Harddisk, page 1-60
• SNMP Polling Awareness of SystemOwner, LR Owner, MIB Location, page 1-60
• Error File Locations and Data Collection Scripts, page 1-60
• Monitoring, page 1-66
• Gathering Information for Technical Support, page 1-70
Troubleshooting Techniques and Approaches
The following techniques and approaches are recommended when troubleshooting using
Cisco IOS XR software:
• Maintain current documentation about the network. See the “Documenting the Network” section on
page 1-2 for more information.
• Maintain current documentation about the system, including chassis numbers, serial numbers,
installed cards, and location of chassis details.
• Maintain diagrams illustrating the connectivity of the router control plane Ethernet network.
• Capture and save the output of all commands. This information is useful when contacting
Cisco Technical Support. For information on contacting Cisco Technical Support, see the
“Obtaining Documentation and Submitting a Service Request” section on page viii in the Preface.
To Next Page
Loading...
Need help?
General
