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6509 High CPU

I'm having a problem on our network with eigrp flapping on our routers, I've narrowed it down to one of our 6509's that's showing high cpu utization...in the log I get holding time expired events for EIGRP (the other routers get peer restarted)...I'm not sure if the high cpu is because of the eigrp flapping or the eigrp flapping is because of high cpu...I'm assuming the high cpu is causing it because all the neighbors flap, not just one router.

Here are some of the show outputs:

*********#sh proc cpu | e 0.0

CPU utilization for five seconds: 72%; one minute: 70%; five minutes: 74%

PID 5Sec 1Min 5Min Process

1 0.6% 1.2% 1.1% kernel

16408 65.8% 64.8% 69.0% ios-base

16423 0.3% 0.4% 0.4% raw_ip.proc

16426 0.3% 0.7% 0.6% udp.proc

16427 0.7% 0.8% 0.9% iprouting.iosproc

16428 0.9% 0.9% 0.9% cdp2.iosproc

******#sh proc cpu det ios-base | e 0.0

CPU utilization for five seconds: 99%; one minute: 77%; five minutes: 75%

PID/TID 5Sec 1Min 5Min Process Prio STATE CPU

16408 96.1% 72.1% 69.8% ios-base 7d06h

1 0.1% 0.1% 0.1% 10 Receive 34m57s

4 6.1% 5.5% 5.4% 10 Receive 72.868

6 1.2% 1.1% 0.3% 10 Receive 1.028

7 45.6% 34.2% 33.4% 21 Intr 1d02h

8 1.2% 1.8% 2.1% 22 Intr 1d18h

9 0.8% 0.3% 0.2% 23 Intr 11m41s

11 8.5% 7.1% 2.8% 10 Receive 9.072

12 10.2% 5.5% 3.0% 10 Receive 12.916

13 6.3% 5.2% 2.6% 10 Receive 9.320

16 16.1% 7.2% 3.3% 10 Reply 11.584

Process sbin/ios-base, type IOS, PID = 16408

CPU utilization for five seconds: 46%/50%; one minute: 33%; five minutes: 32%

Task Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Task Name

2 34443704 374522007 91 0.47% 0.79% 0.78% 0 Service Task

121 79029654 356179708 221 42.79% 27.62% 26.47% 0 IP Input

200 1935298 23863636 81 0.55% 0.18% 0.13% 0 PIM Process

213 61302345 312572015 196 1.59% 1.05% 1.02% 0 Port manager per

any idea what else I can check to see what's causing these issues?

2 REPLIES
Community Member

Re: 6509 High CPU

Ok looks like I was wrong...I think the eigrp updates are causing the high cpu since the neighbors have the same high cpu utilization problem. They all say peer restarted, while this one says holding time expired. most of the peers are uplinked with fiber, a few with ethernet, but again...all eigrp neighbors on that switch are flapping. Any idea what I should look for here?

Hall of Fame Super Bronze

Re: 6509 High CPU

These are the cases when you need to open a ticket with Cisco and deal directly with a technician.

It could be anything..

You can check out this link to get some ideas what to look for:

http://www.cisco.com/en/US/products/hw/switches/ps708/products_tech_note09186a00804916e0.shtml

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