Just though I would put this up as its something I like to keep booked marked and up to date.
The KB provides procedures for obtaining diagnostic information for VMware vCenter Server.
Collecting diagnostic information from vCenter Server 5.1
The Nexus 1000v software v2.1 has been release and can be downloaded now.
Two editions of the Nexus 1000v are available an Essential Edition and an Advanced Edition.
The Nexus 1000V Essential Edition provides all the rich Layer-2 networking features to connect virtual applications to the network and integrate into VMware environments, including: VXLAN capability, Cisco vPath service insertion, integration with vCloud Director, and a plug-in for management and monitoring in VMware’s vCenter Server.