I have a number of virtual servers which reside on a physical host. This host connects to the network via trunk port carrying a number of VLANs. I would like to limit outbound bandwidth from the virtual servers to 100Mbps per virtual server (effectively per IP address). What is the best way to achieve this? The physical host connects to a 2960G switch which uplinks to a pair of C6509s. Ideally, I'd like to do this within the vendor's virtual switch, but the functionality isn't quite there yet, therefore I require a solution which operates outside of the physical host.