Router Process running at 80%

[banalas_2]

I have wan with 180 remote locations connected with frame relay with HUB and SPOKE topology the HUB router is 7513 and when i see the process its running at 80% on one and 40% on the other, these used to somewhere aroung 40% normally ,what should i do and what should i check please help

Thanks

[Prashanth Krishnappa]

The following page should get you started

http://www.cisco.com/warp/public/63/highcpu.html

[scottosan]

did you do a "sh proc cpu"? paste the results into the output translator. If you process usage is low and the interrupt utilization is high, you may want to see if CEF is disabled.

https://www.cisco.com/pcgi-bin/Support/OutputInterpreter/home.pl

have you tried applying "ip route-cache flow" to an interface and inspected the traffc by utilizing the "sh ip cache flow'?

Just a few thoughts.

[marikakis]

When you say "80% on one and 40% on the other" I suppose you mean

that 40% is the cpu usage due to interrupts, and the 80% is the total.

It seems a cpu consuming process (or processes) to me.

To discover the process that is consuming that extra 40%,

try to issue the following command: " show processes cpu | exclude 0.00 "

The lines with 0.00 will be excluded from the output,

so that you can more easily monitor what's going on.

In 7500s I have seen such issues for various reasons.

A few hints follow :

a. SNMP process, because of many SNMP queries, even authorized ones,

by someone who is testing a script (!)

I hope no-one is polling the 5sec cpu...

b. OSPF process, because somewhere in the network a link flaps repeatedly

(not necessarily a directly connected link)

c. EXEC process, because someone copies IOS from a tftp server into 7500 flash:

M.