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New Member

6509 Cat OS High CPU Utilization

Experiencing High CPU utilization (90%). The PID that is causing the problem is 115 575324702 150263556 89000 76.06% 76.92% 76.98% -2 RouterConfig. Any insight would help.


Re: 6509 Cat OS High CPU Utilization

This document describes causes of high CPU utilization on Cisco Catalyst 6500/6000 series switches. Like Cisco routers, switches use the show processes cpu command in order to show CPU utilization for the switch Supervisor Engine processor. However, due to the differences in architecture and forwarding mechanisms between Cisco routers and switches, the typical output of the show processes cpu command differs significantly. The meaning of the output differs, too. This document clarifies these differences. The document describes use of the CPU on the switches and how to interpret the show processes cpu command output.

Note: In this document, the words "switch" and "switches" refer to the Catalyst 6500/6000 switches.

New Member

Re: 6509 Cat OS High CPU Utilization

Thanks for the link. It turned out when I was observing Spant 1 the MAC address fluctuated from all zeroes to a valid MAC address. Looked on the MSFC configuration and the interface Vlan1 was UP. I deleted it and the problem was resolved.