cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
500
Views
0
Helpful
1
Replies

High CPU Utilization on CISCO switch

ADDADF#show processes cpu sorted

CPU utilization for five seconds: 84%/0%; one minute: 74%; five minutes: 76%

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

  36  16866406122007858316        840 59.07% 48.08% 50.55%   0 Cat4k Mgmt LoPri

  35   6076311842177929303          0 17.90% 18.60% 18.62%   0 Cat4k Mgmt HiPri

145    13056060   4525419       2885  1.99%  0.32%  0.27%   0 SpanTree Flush

Show logging

==========

017359: Aug  9 09:00:32.939 IST: %C4K_HWNETFLOWMAN-4-FLOWSLOSTERR: Netflow stats lost either due to hardware hash collisions or full hardware flow table. Stats lost for 3 packets.

show platform health

=================

K2FibAdjMan Stats Re   2.00   1.04     10     11  100  500    1   1    0  5026:14

K2FibAdjMan Host Mov   2.00  14.24     10     11  100  500   18  42   27  27542:31

K2FibAdjMan Adj Chan   2.00   0.00     10      1  100  500    0   0    0  0:00

K2FibMulticast Signa   2.00   0.00     10      3  100  500    0   0    0  418:40

1 Reply 1

nkarpysh
Cisco Employee
Cisco Employee

Hello,

Isee the host is moving:

K2FibAdjMan Host Mov 2.00 14.24

So it seems some MAc addresses flap between ports. You can enabled mac-move notification for every such move to be registered within log.

mac address-table notification mac-move

Please also use the following link for details 4500 CPU troubleshooting

http://www.cisco.com/en/US/customer/products/hw/switches/ps663/products_tech_note09186a00804cef15.shtml

Nik

HTH,
Niko
Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community:

Recognize Your Peers