L3 Switch CPU High

[Sakthi vel]

Dear All,

Our one of the Core switch CPU frequently getting High, Kindly let us know what is the cause for this.

Attached is the Logs

[Sakthi vel]

System returned to ROM by power-on
System restarted at 09:56:14 asia Sun Nov 7 2010
System image file is "bootflash:/cat4500-ipbasek9-mz.122-44.SG1.bin"

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cisco WS-C4506 (MPC8245) processor (revision 7) with 524288K bytes of memory.
Processor board ID FOX113706U3
MPC8245 CPU at 400Mhz, Supervisor V
Last reset from PowerUp
8 Virtual Ethernet interfaces
242 Gigabit Ethernet interfaces
511K bytes of non-volatile configuration memory.

Configuration register is 0x2102

[Vasilii Mikhailovskii]

See the troubleshooting steps below

http://www.cisco.com/c/en/us/support/docs/switches/catalyst-4000-series-switches/65591-cat4500-high-cpu.html

[Jose Solano]

Hi,

 The show processes cpu output shows that there are two processes that use the CPU— Cat4k Mgmt HiPri and Cat4k Mgmt LoPri . These two processes aggregate multiple platform-specific processes which perform the essential management functions on the Catalyst 4500. These processes process control plane as well as data packets that need to be software-switched or processed.

In order to see which of the platform-specific processes use the CPU under the context of Cat4k Mgmt HiPri and Cat4k Mgmt LoPri , issue the show platform health command and check what is the process exceeding the target, once that has been identify you can move forward.

Regards,

Leo