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High CPU utilization with SNMP

lxw615117
Level 1
Level 1

Hi,everyone

 

Did you meet this problem, when I config the SNMP-SERVER on the WS-C4503-E with the SUP7L, and the IOS is Catalyst 4500 L3 Switch Software (cat4500e-UNIVERSALK9-M), Version 03.04.03.SG RELEASE SOFTWARE (fc3), the cpu utilization is over 90% .

8 1 58  118 1118  166  111   19   19   15   11  112  189  11
    791932983744428363497540614446744356383763366342153324493246
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%

                                                               
    998966666999999999999999665766666999999999999999999799799699
    976962145366898889988799386112680798688998997888885088164388
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)

 

switch4503#sh proc cpu detailed
Core 0: CPU utilization for five seconds: 70%; one minute: 45%; five minutes: 27%
Core 1: CPU utilization for five seconds: 39%; one minute: 50%; five minutes: 41%
PID     T C  TID     Runtime(ms) Invoked   uSecs  5Sec   1Min 5Min TTY   Process

222     I            873950      259604558 0      59.1   52.1 30.7 0       SNMP ENGINE

How can I resolve this problem and I can still use the network manager software.

 

Thanks!

1 Reply 1

Vinit Jain
Cisco Employee
Cisco Employee

can you capture 3-4 instances of below output when the CPU is high:

- show stack 222

- show snmp

Also, could you please share your SNMP configuration.

Thanks

Vinit

Thanks
--Vinit
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