On Oct 22, 2013, at 2:15 AM, Romil Gupta <romilgupt...@gmail.com> wrote: > > Hi All, > > We are using OVS as neutron plugin to use VLAN/ VXLAN. We found that OVS does > multiple unicast to send the ARP request instead of sending via Multicast > address. But by default Linux bridge supports Multicast. > > Is there any reason behind why OVS doesn't support Multicast? > > Thanks in Advance :)
Hi Romil: I'm copying and pasting the answer I gave to you when you asked this question on the openstack mailing list as well: The only reason is that support for a multicast control plane never made it upstream into OVS. However, there is effort upstream in OVS to synchronize the data plane portions of VXLAN, and when that happens, OVS VXLAN will acquire multicast support. FYI: In Havana, you may want to checkout the ML2 plugin with the L2 Population MechanismDriver. It does some pretty neat things with regards to programming OVS using multiple tables, etc. Thanks, Kyle _______________________________________________ discuss mailing list discuss@openvswitch.org http://openvswitch.org/mailman/listinfo/discuss
