Passport 8600 CPU 100%

[RJHoldi]

Hi all,

since some weeks my passports got a cpu utilisation of 100%. i got a redundant pair with wsm modules and ssl accelerators. there were made no changes to the configurations and the traffic is the same. maybe the software on the webservers and application servers changed but i don't know.
is there any way to find out the origin of the failure ?

regards Reinhold

 

[anthonyanderberg]

Do both of your CPU modules show 100% utilization on their LEDs and command line interfaces (show sys perf), or is it just the active CPU module?

 

[anthonyanderberg]

It might be helpful to know what version of code your running as well.

 

[Alainv]

Check your server connections.
Have the "server" guys implemented teaming? without any notice?
If that is the case, this can cause problems.
Track the mac-address of the servers and cross-check the forwarding table.
If that flips, and no MLT's for that purpose has been configured, you know who to blame.

 

[Gonsas]

Search for IGMP broadcasts. Try disabling IGMP on access switches and see the results.
Anyway, what FW do you have on the ERS8600?

Cheers

 

[RJHoldi]

Hi all and thank you for your answers,

your hints, looking for others working on the net, where great. i found a lot of snmp traffic on my uplinks. i never looked for this before. there was an error in two management servers that caused the high cpu utilisation. the two servers where polling for the mac addresses about 100 times per second and the PP responded but the servers however didn't get the answer. now the server guys restartet the application and my cpu just is fine.

thanks again for help, regards Reinhold