Cisco 4507R problem

Question

I have started to see the problem for couple days where some hosts connected to 4507R stopped responding to ping and I saw huge latency upto 400msec. (In normal cases it is 1 msec becuase they are directly connected hosts. I couldn't find anythiing in the logs or interface errors but show proc cpu history and found that CPU went up to 100% in last 60 sec. Anyone know why it is doing this? Do I need a reboot?
Thanks.

Answer 1

Hi Bobby
I'm pinging from a different host which is directly connected to this swtich and our monitoring system (HpOV also on the same vlan)sends pages/email when it looses pings. The highest process I see on show proc cpu is
26 3609955722129699394 169 9.03% 9.79% 9.92% 0 Cat4k Mgmt HiPri
27 30077935764176720830 720 8.47% 7.57% 7.61% 0 Cat4k Mgmt LoPri
but when I do show proc cpu histroy I see about 99% spike but that doesn't show which process, here is the capture
xec-4507-25#sh proc cpu history
1111122222222221111111111111111111122222333331111122222111
6666600000000007777799999777777777788888111115555511111666
100
90
80
70
60
50
40
30 **********
20 **********************************************************
10 **********************************************************
0....5....1....1....2....2....3....3....4....4....5....5....
0 5 0 5 0 5 0 5 0 5
CPU% per second (last 60 seconds)
4444554444444455444443435343434375534343434352424342429942
6644889955996688224442328852534394512442231368995366779978
100 **
90 **
80 * **
70 * **
60 ** ** * * * * **
50 ** ************ * * * *** * * * * * ***
40 ********************* * *** * * *** * * * * * * * * * *#*
30 ********************************##********************##**
20 ##########################################################
10 ##########################################################
0....5....1....1....2....2....3....3....4....4....5....5....
0 5 0 5 0 5 0 5 0 5
CPU% per minute (last 60 minutes)
* = maximum CPU% # = average CPU%
9977787677655587777777766675556677877787666555777776777766755586677777
9571002931794143410410487627389561511711952155461009150261467110632133
100 **
90 ** *
80 *** * * * * ** * * *
70 *********** ************* ************ *********** * * ******
60 ************ ************** ************** ***************** ********
50 **********************************************************************
40 **********************************************************************
30