With the limitations of the vswitches, how do most folks out there setup multiple VMs, where half may be used on one subnet and the other half on another subnet.
For example:
vm1 is on 192.168.1.1
vm2 is on 192.168.5.1
Using ESXi 4.1
Using physical layer3 switches with multiple subnets and gateways
With the switches you mention, I would setup VLANs (if not already done), configure the physical ports as trunk ports and do the VLAN tagging on the virtual port groups. This way you can use one vSwitch with 2 (or more) port groups, each with the VLAN you need. See VST (virtual switch tagging) in http://www.vmware.com/files/pdf/virtual_networking_concepts.pdf
André
With the switches you mention, I would setup VLANs (if not already done), configure the physical ports as trunk ports and do the VLAN tagging on the virtual port groups. This way you can use one vSwitch with 2 (or more) port groups, each with the VLAN you need. See VST (virtual switch tagging) in http://www.vmware.com/files/pdf/virtual_networking_concepts.pdf
André