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Inside Cisco IOS Software Architecture (CCIE Professional Development) by Russ CCIE #2635 White, Curtis CCIE #1521 Murphy, Vijay CCIE #1606 Bollapragada

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Troubleshooting Tips for the Cisco 7500 Router

This section provides information on how to troubleshoot common problems involving IOS on the Cisco 7500 platform. Some of these common scenarios include high CPU utilization, input drops, ignores, and output drops.

High CPU Utilization

Example 6-8 shows a portion of the output from the IOS show process cpu command on a router that is experiencing high CPU utilization.

Example 6-8. show process cpu Command Output Revealing High CPU Utilization
Router#show process cpu CPU utilization for five seconds: 90%/80%; one minute: 60%; five minutes: 40% PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 1 1356 2991560 0 0.00% 0.00% 0.00% 0 BGP Router 2 100804 7374 13670 0.00% 0.02% 0.00% 0 Check heaps ...

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