So I was doing a P2V and all of the sudden our network started going crazy. After a lot of poking around we seemed to isolate it to the P2V process. After looking at our ESX hosts one of them wasn’t pulling up anything on the display through our KVM which was strange. This appeared to be the host that the P2V was going against. After a hard power off/power of the ESX host, the P2V was able to proceed smoothly.
Or maybe MAC address limit reached on one of the switches?