We run cat4500-ENTSERVICESK9-M), Version 12.2(40)SG on Cisco 4510Rs.
And ccasionally i see CPU spikes of up to 80% for a few minutes and sometimes loss of connectivity to layer 3 addresses on the switches.
It has in the past caused brief losses in layer 3 connectivity but usually its just a monitoring abnormaility and doesn't cause any noticable problems.
Does anyone have any ideas what this could be? Traffic seems normal at this time.
Are there any increased logging or debugging I can do to try and isolate the problem?
Or perhaps any obvious known bugs with the cat4500-ENTSERVICESK9-M), Version 12.2(40)SG IOS?
Help would be much appreciated.