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Core Switch CPU usage is very high

Dear support,

Our network core switch CPU usage is very high. Please find the below log and help me what we can do for normal network operation.

SW-0001#sh processes cpu

CPU utilization for five seconds: 60%/3%; one minute: 49%; five minutes: 49%

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

   1       27044  42032926          0  0.00%  0.00%  0.00%   0 Chunk Manager

   2        7104   5244158          1  0.00%  0.00%  0.00%   0 Load Meter

   3           0         1          0  0.00%  0.00%  0.00%   0 CEF RP IPC Backg

   4           0         1          0  0.00%  0.00%  0.00%   0 Deferred Events

   5           0         1          0  0.00%  0.00%  0.00%   0 Retransmission o

   6           0         1          0  0.00%  0.00%  0.00%   0 IPC ISSU Receive

   7    25853676   3543750       7295  0.00%  0.07%  0.06%   0 Check heaps

   8         156      2803         55  0.00%  0.00%  0.00%   0 Pool Manager

   9           0         2          0  0.00%  0.00%  0.00%   0 Timers

  10          92         4      23000  0.00%  0.00%  0.00%   0 PrstVbl

  11           0         2          0  0.00%  0.00%  0.00%   0 Serial Backgroun

  12           0         1          0  0.00%  0.00%  0.00%   0 Crash writer

  13           0         1          0  0.00%  0.00%  0.00%   0 ifIndex Receive

  14    31810908 296650398        107  0.31%  0.24%  0.24%   0 ARP Input

  15           0         1          0  0.00%  0.00%  0.00%   0 CEF MIB API

  16           0         1          0  0.00%  0.00%  0.00%   0 AAA_SERVER_DEADT

  17           0         2          0  0.00%  0.00%  0.00%   0 AAA high-capacit

  18           0         1          0  0.00%  0.00%  0.00%   0 Policy Manager

  19          32        73        438  0.00%  0.00%  0.00%   0 Entity MIB API

  20          20      1797         11  0.00%  0.00%  0.00%   0 EEM ED Syslog

  21           0         1          0  0.00%  0.00%  0.00%   0 IFS Agent Manage

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

  22          72    437027          0  0.00%  0.00%  0.00%   0 IPC Dynamic Cach

  23           0         1          0  0.00%  0.00%  0.00%   0 IPC Zone Manager

  24       10344  26213075          0  0.00%  0.00%  0.00%   0 IPC Periodic Tim

  25           0         1          0  0.00%  0.00%  0.00%   0 IPC Managed Time

  26        9340  26213077          0  0.00%  0.00%  0.00%   0 IPC Deferred Por

  27           0         1          0  0.00%  0.00%  0.00%   0 IPC Seat Manager

  28           0         1          0  0.00%  0.00%  0.00%   0 IPC Session Serv

  29           0         1          0  0.00%  0.00%  0.00%   0 client_entity_se

  30           0         1          0  0.00%  0.00%  0.00%   0 SERIAL A'detect

  31           0         1          0  0.00%  0.00%  0.00%   0 ARP Snoop

  32       11136  26213077          0  0.00%  0.00%  0.00%   0 Dynamic ARP Insp

  33           0         2          0  0.00%  0.00%  0.00%   0 SMART

  34        9968  26213030          0  0.00%  0.00%  0.00%   0 GraphIt

  35           0         1          0  0.00%  0.00%  0.00%   0 PCMCIA Hotswap

  36           0         1          0  0.00%  0.00%  0.00%   0 Critical Bkgnd

  37       29464   6906938          4  0.00%  0.00%  0.00%   0 Net Background

  38     2184444  26221400         83  0.00%  0.05%  0.07%   0 IDB Work

  39          20      3267          6  0.00%  0.00%  0.00%   0 Logger

  40       15072  26213068          0  0.00%  0.00%  0.00%   0 TTY Background

  41       43400  26586390          1  0.00%  0.00%  0.00%   0 Per-Second Jobs

  42     8701932    639519      13607  0.00%  0.03%  0.00%   0 Per-minute Jobs

  43           8        41        195  0.00%  0.00%  0.00%   0 IF-MGR control p

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

  44          48     11912          4  0.00%  0.00%  0.00%   0 IF-MGR event pro

  45           0         1          0  0.00%  0.00%  0.00%   0 ISSU PROCESS IPC

  46           0         1          0  0.00%  0.00%  0.00%   0 PrstVbl IPC Msg

  47           0         2          0  0.00%  0.00%  0.00%   0 cpf_msg_holdq_pr

  48           0         1          0  0.00%  0.00%  0.00%   0 cpf_msg_rcvq_pro

  49           0         2          0  0.00%  0.00%  0.00%   0 IP Host Track HA

  50           0         2          0  0.00%  0.00%  0.00%   0 ARP HA

  51           0         1          0  0.00%  0.00%  0.00%   0 IP Admission HA

  52           0         1          0  0.00%  0.00%  0.00%   0 Network-rf Notif

  53  15725746563539183566        444  3.35%  3.44%  3.45%   0 Cat4k Mgmt HiPri

54   5550566842834540074        195 34.07% 36.86% 37.73%   0 Cat4k Mgmt LoPri

  55        6768   7967392          0  0.00%  0.00%  0.00%   0 Galios Reschedul

  56           4         5        800  0.00%  0.00%  0.00%   0 GaliosObflLogger

  57           0        30          0  0.00%  0.00%  0.00%   0 IOS ACL Helper

  58         480        53       9056  0.00%  0.00%  0.00%   0 GaliosQuack_help

  59           0         2          0  0.00%  0.00%  0.00%   0 rf task

  60           0         1          0  0.00%  0.00%  0.00%   0 RF High Priority

  61      126764  15914548          7  0.00%  0.00%  0.00%   0 Net Input

  62      536356   7646802         70  0.07%  0.01%  0.00%   0 Compute load avg

  63           0         1          0  0.00%  0.00%  0.00%   0 GalRedMsgProc

  64           0         1          0  0.00%  0.00%  0.00%   0 RFS server proce

  65           0         1          0  0.00%  0.00%  0.00%   0 RTTYS Process

SW-0001#sh processes cpu history

    5555555555555555555544444555555555544444444445555566666444

    2222200000555550000033333000001111166666555550000000000666

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)

    6555655566555555656777777775555555555444555444444544434444

    0662467800624611267513963356622305442928124955376345494523

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%

    7457657667558767668668767557644744644757897889999779787799665599776999

    5846298038990157040155691001654543976605356654867877810978722439737688

100                                          *    ***  *    **     *   ***

90                      *                   * ******  *    **    **   ***

80 *  *  *  *  *  *  *  **        *     * *************** ***    ***  ***

70 *  *  *  *  ****  * *****  **  *  *  * *****#**************   ********

60 *  **********************  **  *  *  * ****##***************  ********

50 ***############**#######****** *  ******########***************#######

40 #**######################*************###########**********###########

30 ######################################################################

20 ######################################################################

10 ######################################################################

   0....5....1....1....2....2....3....3....4....4....5....5....6....6....7.

             0    5    0    5    0    5    0    5    0    5    0    5    0

                   CPU% per hour (last 72 hours)

                  * = maximum CPU%   # = average CPU%

SW-0001#sh memory summary

                Head    Total(b)     Used(b)     Free(b)   Lowest(b)  Largest(b)

Processor   13EE25FC   470931968   240115248   230816720   228275536   224663200

Thanks in advance.

1 ACCEPTED SOLUTION

Accepted Solutions
Silver

Core Switch CPU usage is very high

Did you perform the steps I described? What was the result?

Daniel Dib
CCIE #37149

Daniel Dib CCIE #37149 Please rate helpful posts.
7 REPLIES
Silver

Core Switch CPU usage is very high

Refer to this URL for troubleshooting:

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

Use the show platform health command.

It could be possible that you have software switched packets (punted).

Daniel Dib
CCIE #37149

Daniel Dib CCIE #37149 Please rate helpful posts.
Hall of Fame Super Gold

Core Switch CPU usage is very high

And what is the IOS version you are running?

Core Switch CPU usage is very high

Cisco IOS Software, Catalyst 4500 L3 Switch Software (cat4500e-ENTSERVICESK9-M), Version 12.2(53)SG, RELEASE SOFTWARE (fc3).

Re: Core Switch CPU usage is very high

Hi Leo Laohoo,

Is there any IOS bug related issues? please help..

Hall of Fame Super Gold

Core Switch CPU usage is very high

Sorry, but I'm not familiar with this line of IOS version. 

Silver

Core Switch CPU usage is very high

Did you perform the steps I described? What was the result?

Daniel Dib
CCIE #37149

Daniel Dib CCIE #37149 Please rate helpful posts.

Re: Core Switch CPU usage is very high

Hi Daniel Dib,

We applied no       ip redirects command under the uplink interfaces and its working like a magic. now the switch CPU utilization is less than 30%. Many thanks Daniel Dib.

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