I am setting up NLB between a physical server and a newly created VM - both are running Windows Server 2008r2.
The physical servers have been in production for quite some time and are set up with NIC teaming; 4 teamed for the public traffic and 4 teamed for the iSCSI traffic.
The VM is setup with 2 NICs - 1 for public traffic and the other for the NLB heartbeat.
For the physical server: For many reasons, I do not want break these teams to free one up so it can be used/dedicated to the NLB heartbeat. As a result, I was going to use the public teamed NICs for both types of traffic (public and heartbeat).
Virtual Server: These are setup with 2 seperate NICs. I was going to use one for public traffic and one for the heartbeat.