If still not fixed based on above input; check if there's a broadcast or multicast storm which could be affecting your dynamic routing - can be fixed using storm-control broadcast/multicast level command on a per interface level or globally (depends on platform).

You can also set some control-plane limits to help limit CPU resource utilization.

Kennedy 

On Tue, Oct 2, 2018 at 1:09 PM Thuo Wilson via skunkworks <skunkworks@lists.my.co.ke> wrote:

Check ACL, Route maps, NAT overload  or flood attack - those are main culplits.

Also check dynamic route looping - like OSPF - big consumer.

Kind Regards,

Wilson./

On Mon, 1 Oct 2018 at 14:12, Odhiambo Washington via skunkworks <skunkworks@lists.my.co.ke> wrote:

More details.

While digging, I have disabled snmp-server and some debug logging configs.

Now I have:

C1841#sh processes cpu sorted

CPU utilization for five seconds: 64%/17%; one minute: 78%; five minutes: 66%

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

 121      467636      134723       3471 45.27% 55.87% 47.09%   0 IP Input

I still think this is high, no? I need to figure out what exactly comprises IP Input

On Mon, 1 Oct 2018 at 12:11, Odhiambo Washington <odhiambo@gmail.com> wrote:

I am wondering where to start looking:

C1841#sh processes cpu history

C1841  11:44:05 AM Monday Oct 1 2018 UTC

      999999999999999999999999999999999999999999999999999999999999

      444499999999998888800000888888888888888999999999999999777777

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

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

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

   70 ************************************************************

   60 ************************************************************

   50 ************************************************************

   40 ************************************************************

   30 ************************************************************

   20 ************************************************************

   10 ************************************************************

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

               0    5    0    5    0    5    0    5    0    5    0

               CPU% per second (last 60 seconds)

--

Best regards,
Odhiambo WASHINGTON,
Nairobi,KE
+254 7 3200 0004/+254 7 2274 3223
"Oh, the cruft."

--

Best regards,
Odhiambo WASHINGTON,
Nairobi,KE
+254 7 3200 0004/+254 7 2274 3223
"Oh, the cruft."

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