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How to check what cause high CPU utilization in Cat6513

1. For a Catalyst 6513, In the situation that the CPU utilization shoot up with no appearance reason, how and what should I look for that cause the high cpu?

2. I used the show process cpu sorted 5min | exclude [0-9.]+% +[0-9.]+% +0.00%, but from the output I can't determined what is the cause as well, please help?

3. Is there any command that I can use to check which interfaces contribute the most traffic?

CPU utilization for five seconds: 26%/24%; one minute: 25%; five minutes: 25%

PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process

228 1853402561517990195 122 1.27% 0.51% 0.45% 0 Port manager per

259 44287800 90748205 488 0.00% 0.32% 0.37% 0 SNMP ENGINE

4 200526352 14849845 13503 0.00% 0.26% 0.23% 0 Check heaps

111 41700384 735764658 56 0.07% 0.16% 0.15% 0 IP Input

18 67970092 149405952 454 0.07% 0.15% 0.14% 0 ARP Input

161 5708360 79831654 71 0.00% 0.12% 0.10% 0 IP SNMP

3 96 245 391 0.07% 0.07% 0.02% 1 SSH Process

148 8272248 97230102 85 0.00% 0.03% 0.01% 0 OSPF Hello

112 3886944 95585102 40 0.07% 0.03% 0.00% 0 CDP Protocol

149 23991560 126520840 189 0.07% 0.02% 0.00% 0 CEF process

155 1686936 8261960 204 0.00% 0.01% 0.00% 0 DHCPD Receive

30 1834248 554550228 3 0.00% 0.01% 0.00% 0 Critical Bkgnd

225 2243940 39928891 56 0.00% 0.01% 0.00% 0 PDU DISPATCHER

35 22591448 2901373 7786 0.00% 0.01% 0.00% 0 Per-minute Jobs

Thank in advance.

1 REPLY
Hall of Fame Super Blue

Re: How to check what cause high CPU utilization in Cat6513

It could be any number of things. A good place to start if you haven't already seen this doc is:

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

Apologies if you have already seen this.

Jon

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