LMS 3.1 inventory collection and polling causing high cpu use on switch

[cminard]

Hi

I have 3560-24PS-S (ios version 12.2(35)SE1) that have high CPU (almost 100%) use at every inventory collection (each sunday) or polling (each day 6 a.m) during 2 or 3 minutes.

I read on the forum, that this could be due to some mib object polling failure, and could, perhaps, be solved by upgrading the ios version or configuring view preventing the poll of the problematic object.

But what view to configure ?

Is there well known MIB objects to filter ? Which ones ?

I did not see any bug related to my IOS version and this behavior in the bug toolkit ...

I join some sh commands (unfortunately done when no problem).

I don't know if it helps. Will try to obtain the output of the sh command when the pb occurs.

[Nael Mohammad]

You need identify what is being polled when the high cpu occurs by using a sniffer during inventory collection from LMS. When you identify the objects being polled during the spike, you can use the views to restrict polling.

To identify which object are polled, do the following:

1. Do a packet capture using a sniffer like wireshark.

2. Enable "debug snmp packet" on problematic device which cause will a spike and once done disable the debugs.

Post the results when done so we can come up with a solution.