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Cisco 6509 High-CPU

hello,

i am experiencing intermittent CPU high situation at a client site. I have 2 6509-E chassis with SUP-720-VSS and classic line cards :-(. on October 2011 the switch reached 100% CPU on both devices and the entire network went down. Customer restarted the core so we lost all the log files and couldnt find out any root cause on the same. TAC engineer suggested to have some script configured on the system in case of CPU shooting up above 70%, it will create a file in flash and keep appending the logs to the same. Last week i got call from customer saying that the CPU again went high for around a minute on both the cores. Last time i added CoPP also on the switch in order to prevent the CPU reaching 100%. Still it went high and from the captured logs i saw that the process created the high CPU was Port Manager Per and SSH process. Attached the file created by the netdr capture command. please help on this issue

regards

Najeeb

1 REPLY
VIP Super Bronze

Cisco 6509 High-CPU

Hi,

What version IOS are you running?  Usually, with modular IOS using SSH, CPU spikes seems to be higher than if you are not using a non-modular code.

HTH

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