Cisco Router 100% cpu utilization

[dien9]

I run #sh proc cpu, can see:

CPU utilization for five seconds: 100%/81%; one minute: 87%; five minutes: 80%

but I cannot find in the any high cpu process according to the PID.

Do you know why?

The high cpu utilization make the logn ping time even timeout.

[dien9]

1)Have error when enable ip cef

2)#show process cpu | exclude 0.00%__0.00%__0.00%

CPU utilization for five seconds: 100%/77%; one minute: 79%; five minutes: 75%

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

2 320 161 1987 0.39% 0.10% 0.02% 2 Virtual Exec

3 344170528 17441380 19733 0.00% 0.53% 0.72% 0 Check heaps

11 16551716 90475035 182 0.07% 0.05% 0.01% 0 IPC Seat Manager

12 48749368 161949770 301 0.00% 0.05% 0.07% 0 ARP Input

37 15967336 150975357 105 0.00% 0.03% 0.00% 0 IPC CBus process

43 95906088 230762939 415 0.07% 0.19% 0.18% 0 IP Input

51 46444076 317286 146381 0.00% 0.11% 0.11% 0 IP Background

71 20267408 328561 61685 0.00% 0.12% 0.10% 0 IP Cache Ager

82 3118020 77459437 40 0.00% 0.01% 0.00% 0 Net Input

84 6219672 314795 19757 0.00% 0.02% 0.00% 0 Per-minute Jobs

88 11505832 146145751 78 0.00% 0.02% 0.04% 0 IP-EIGRP Hello

95 30730560 79460524 386 0.00% 0.06% 0.05% 0 BGP Router

97 1242236416 5367379 231445 22.61% 5.42% 3.01% 0 BGP Scanner

3)already no debug all

4)#sh ver

Cisco Internetwork Operating System Software

IOS (tm) RSP Software (RSP-ISV-M), Version 12.0(5)XE5, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)

[spremkumar]

Hi

Your IOS code seems to be pretty old better update it to a newer version of code available so that you can have CEF configured in your box.

Enabling CEF will help you to reduce the peaking CPU load in your router...

regds

[dien9]

I'm using 7506, what IOS version recommend?

[stephtchoko]

This image for 7500 router support cef.

rsp-pv-mz.12.0-30.S5.bin (128/16)

Don't forget to verify memory require.

[dien9]

I'm now using rsp-isv-mz.120-5.XE5

[dien9]

where can download ?

[stephtchoko]

you have to load it on your flash memory.

http://www.cisco.com/en/US/products/sw/iosswrel/ps1828/prod_release_note09186a00800810f3.html

Regards.

[dien9]

Checked the InQ and OutQ for all peers is zero.

Cisco Document said BGP now queues data aggressively from the BGP OutQ to the TCP socket for each peer until the OutQs have drained completely.

Do I need to upgrade the IOS and only type some command can achieve that.

If I need to upgarde the IOS, can you email the file to me ? Thanks.