100% CPU on SG250/350 (ios 2.5.0.83)

[plavielle]

High Community.

I have a strange behaviour on most part of my switch (about 10).

I experience 100% CPU (in web ui and ssh) but low cpu usage report by SNMP tool (PRTG).

If someone has an explanation, it welcome.

Even on untouch SNMP config i have this behaviour.

If you want i can put "tech info" here if needed.

[balaji.bandi]

as per community users, some of the having same issue with SNMP, what is the outcome if we disable the SNMP ? is this stable ?

how frequenty you polling snmp ?

Even on untouch SNMP config i have this behaviour.

can you explain this ?

[plavielle]

What do you mean by "disable" SNMP ????? Stop the service ?????

I have updated all my switch to latest firmware, but i think the problem occurs when doing an SNMP scan on the router.

We use PRTG software and it seems to me that when the software "scans" all the SNMP entries, the switch passes and stays at 100% cpu.

I will try to reproduce the phenomenon on my backup switch

[balaji.bandi]

What do you mean by "disable" SNMP ????? Stop the service ?????

Remove SNMP config from device and also stop polling from PRTG, what is the status ?

[plavielle]

Without touch PRTG, and just rebooting switch cpu goes well. I just manage traffic. Polling every 5 minutes. What is the oid for CPU ??

[balaji.bandi]

Try below :

1.3.6.1.4.1.9.6.1.101.1.9.0