I am investigating a design which uses Cisco's 3130X network modules within a Blade enclosure to provide connectivity to blades hosting virtual servers.
We have a requirement to rate-limit bandwidth to/from some virtual servers on a per-IP basis. We cannot apply policing on any physical ports as the virtual machines could be VMotion'ed across to different blades or even to a different chassis. One solution could be Nexus 1000V where the configuration is performed at the virtual port level, but in the absence of this (and just using the integrated VMware vSwitch) are there any other options? The uplink switch is a C6k with Sup720 so I do wonder about per-user (per-IP) microflow policing?