We have a pair of Catalyst 6509, one is having very high cpu constantly, and the two cpu-intensive processes are ios-base and tcp.proc
Attached file shows:
1) show processes cpu
2) show processes detail ios-base
3) show processes detail tcp.proc
4) show version
Servers are distributed among the two Cat6509, but this one is the main switch for uplink connections.
Please kindly advise how to troubleshoot and find out the cause of this high cpu utilization.
[email protected] wrote:
Thanks very much for your reply.
I did actually go through that document before and didn't find anything that seems to apply to our network.
I am planning to do a packet capture on the switch to look at the traffic, but I am afraid the monitor session will bring the CPU to 100%, as it is already 96% now, so I haven't done it yet. And so I would like to get some ideas here as to how to proceed.
Can you run a "sh tcp brief" and see if there are any hungs sessions ?