Hi All,
We are experiencing lot of HSRP flapping in our customers Cisco switches(Catalyst 6509) connected to the ESX servers. We believe this may be due to aggressive ARP timers set in the ESX servers.ARP traffic are going in to the switches around 200ms intervals and cause the switches drop some of the traffic and high CPU spikes. This is only happening in the switch vlans connecting ESX servers.I tried searching the vmware site to find about the nature of the beacon probing used in vNICsetups thinking this maybe the culprit of ARP generation.Unfortunately i was unsuccessful in finding out any thing describing the type of beacons sent out, pings, ARP, etc..
I appreciate any comments or experienced shared here..