I'm working on Cisco-Network(with Coreswitch Cisco 3750E). Since two weeks the core switch has an utilization of 100% (every ten minutes). The nagios reports the following message: "cisco_load | CPU: 99 99 99 : 99 > 98".
In IOS command: 3750E#show proc cpu
316 8864348 869362 10196 74.49% 77.95% 78.33% 0 SNMP ENGINE
Why the snmp has a load over 70%? Can you help me?
I take this information in a forum:
There are two probable causes for high CPU utilization occuring in relation to Simple Network Management Protocol (SNMP):
Large route and/or ARP tables being polled by the NMS station
Polling certain MIBs
How can I get the #show proc cpu histroy# in real time?
In the in case we need to reset the SNMP engine.
Following are the steps to do so:
get the output of 'sh run | in snmp' save it to a notepad and then do a 'no snmp-server' in the conf t mode.
then check for the output 'show proc cpu | in SNMP'
check the SNMP ENGINE would not be visible.
after a minute add the commands back in the configuration.
and then check and let me know if the CPU utilisation shows any improvement.
please let me know if this was helpful.
it solved my Problem.
I have the same issue as yours. Is there any solution beside reset the SNMP Engine? The solution that more 'safety'? because I have this issue on production device.