I tried setting the switch ports to "Access" mode, but that doesn't make a difference. Could it have anything to do with the fact that I am using the default vlan1 on the cisco switch and the ESXi boxes are set to a vlan ID of 0 (none)?
Also, these servers have multiple nics on them used for ISCSI on different networks. The ISCSI are all on their own vswitches which are connected to dedicated nics to separate the ISCSI traffic. I am able to ping from the server to the ISCSI target on the alternate VMhost, but still not able to ping from the primary IP of the server to the primary IP of the ISCSI server, nor to the win7 machine. The ISCSI nics are not teamed, while the management nics are teamed. However, I broke the team on one of the hosts and that made no difference either.