>> And the below mentioned link to install OpenvSwitch - >> http://networkstatic.net/open-vswitch-red-hat-installation/ >> I am not able to compile the source. It fails while running make. > That may be old now redundant info. > kernel >= 2.6.32-343 should facilitate OpenvSwitch. >Note also that user space rpms are available from the RDO repositories. >Please see http://openstack.redhat.com/Quickstart for setup details. Depends a bit on what functionality you want. That OpenvSwitch implementation does not support GRE tunnels. Let me know if you need GRE tunnels, I'll send you the (s)RPMS we use for openvswitch. Cheers, Robert van Leeuwen