Advanced Line Card Troubleshooting

Cisco Systems 12000 series specifications Advanced Line Card Troubleshooting, Output Examples

Configuring and Troubleshooting Interfaces

For additional configuration examples, refer to the appropriate Cisco IOS software configuration publications listed in the “Important Information” section on page 1.

Note

This section provides advanced troubleshooting information in the event of a line card failure. It also provides pointers for identifying whether or not the failure is hardware related. This section does not include any software-related failures, except for those that are often mistaken for hardware failures.

This section assumes that you possess basic proficiency in the use of Cisco IOS software commands.

By reading this section and by following the troubleshooting steps, you should be able to determine the nature of the problems you are having with your line card. The first step is to identify the cause of the line card failure or console errors that you are seeing. To discover which card may be at fault, it is essential to collect the output from the following commands:

•show context summary

•show logging

•show logging summary

•show diag slot

•show context slot slot

Along with these show commands, you should also gather the following information:

•Console Logs and Syslog Information—This information is crucial if multiple symptoms are occurring. If the router is configured to send logs to a Syslog server, you may see some information on what has occurred. For console logs, it is best to be directly connected to the router on the console port with logging enabled.

•Additional Data—The show tech-supportcommand is a compilation of many different commands, including show version, show running-config, and show stacks. This information is required when working on issues with the Cisco Technical Assistance Center (TAC).

It is important to collect the show tech-supportdata before doing a reload or power cycle. Failure to do so can cause all information about the problem to be lost.

Output from these commands will vary slightly depending on which line card you are using, but the basic information will be the same.

Output Examples

The following are examples of system output that you may see if your Cisco 12000 series router line card fails. Key data in the output is underlined.

•show context summary Output

•show logging Output

•show diag slot Output

ATM Line Card Installation and Configuration

36	OL-13004-01