HIGH CPU UTILIZATION OF 4500 SWITCH

[Sunil Patil]

I have one Cisco 4500 switch. On that switch we are facing high CPU intermittently. CPU utilization is reaching 80% from last one week, no changes been done. For reference i am attaching the Show log output. But I am unable to capture the show process cpu output because whenever I logged in the device for capture the output the CPU process gone down.

I also get the error of %C4K_L2MAN-6-INVALIDSOURCEADDRESSPACKET in show logs. But I checked for same that there is no hub is connected in that switch.

[ranjit123]

Hi!,

Shut VLAN 212 your problem will be solved.

Regards,

Ranjit

[Sunil Patil]

But about the trafiic of VLAN 212.

[ranjit123]

Check the source of the MAC address

do u have VMWARE or multicasting enabled in your N/W that is connected to your core switch.

Your core switch is not able to process the request

show process cpu will be more helpfull here

Regards,

Ranjit