We are investigating VSS as a failover/load balancing solution. Does anyone have experience with Virtual Switching? Any input on if or how it operates with Sun and Microsoft servers? It looks like Sun supports link aggregation, which is based on the 802.3ad spec (as is Cisco's EtherChannel), but our Sun admins want to use IPMP, which apparently is a layer-3 protocol and isn't 802.3ad compliant. Anyone else out there using VSS yet? Thanks - Rich