We have 2 6513's to which the servers are dual connected in a Failover mode. This is a single Vlan (vlan1) with about 100 physical servers. The 2 switches are connected to the core 6509's via 2port etherchannel running at Layer 3, and there is an 8gb Etherchannel between the 2 switches.
What I am seeing at the packet capture box is that the server will appear to have 2 mac addresses. 1 being the maac in the server and the second being the VLAN 1 interface MAC Address. This seems to happen to packets on the A switch going to the B switch. B is the Active device in HSRP and A is the Standby. We are not sure what we are looking at. It appears that in some cases the TTL has been decremented as if it has gone past a router. The Switches do run EIGRP and the VLAN 1 interfaces are in the network staements. We are thinking "Local Router Problem" but I can't find any documents that discusses this. Any conversation or direction will be appreciated.