High cpu utilization CAT 4000 L3 Switch

Leonardo Pena Davila · ‎04-02-2009

Hi I have an unusual behavior on Catalyst 4000 L3. The cpu utilization is 99%

The process K2FibAdjMan Host Mov is consuming HIgh ressources....

Does anyone have any suggestion?

Thnaks a lot

Switch#show platform health

%CPU %CPU RunTimeMax Priority Average %CPU Total

Target Actual Target Actual Fg Bg 5Sec Min Hour CPU

Lj-poll 1.00 0.02 2 1 100 500 0 0 0 1:09

GalChassisVp-review 3.00 0.29 10 3 100 500 0 0 0 11:15

S2w-JobEventSchedule 10.00 0.32 10 7 100 500 0 0 0 10:14

!--- Output suppressed.

K2FibAdjMan Stats Re 2.00 0.30 10 4 100 500 0 0 0 6:21

K2FibAdjMan Host Mov 2.00 18.68 10 4 100 500 25 29 28 2134:39

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

K2FibMulticast Signa 2.00 0.01 10 2 100 500 0 0 0 2:04

K2FibMulticast Entry 2.00 0.00 10 7 100 500 0 0 0 0:00

Cisco Internetwork Operating System Software

IOS (tm) Catalyst 4000 L3 Switch Software (cat4000-I5K2S-M), Version 12.1(20)EW

, RELEASE SOFTWARE (fc1)

Compiled Tue 23-Aug-05 18:02 by kesnyder

Image text-base: 0x00000000, data-base: 0x0106BBD0

ROM: 12.2(20r)EW1

Dagobah Revision 226, Swamp Revision 32

es-pdmcoreedif7 uptime is 19 hours, 22 minutes

System returned to ROM by reload

System restarted at 19:13:38 CCS Wed Apr 1 2009

System image file is "bootflash:/cat4000-i5k2s-mz.121-20.EW4.bin"

Giuseppe Larosa · ‎04-02-2009

Hello Leonardo,

use the following document about high cpu

K2FibAdjMan Host Mov this makes me think of mac address moves / flapping do you see any messages about mac flapping on the log ?

if so a bridging loop can be occurring

Hope to help

Giuseppe