We have two Nexus 7010's in a HSRP setup and we had intermitent packet loss between VLAN's. TAC had us upgrade from 4.1.5e2 to 4.2.1 and all our servers with nic teaming started to posin the arp tables by sending arp requests to the physical addresses of the Nexus on each VLAN instead of the SVI address for the VLAN. The problem is, why are these servers broadcasting to the physical IP's and the Nexus accepting the arp that is the wrong mac for the IP address.
Has anyone experienced this behavior?
we are in the same boat and running 4.2(3). The temp fix is to create static arp entries for the affected servers. Does anyone know of a perm. fix?