Oh, maybe I didn't address clearly. What I mean is that multicast and multipath unicast is different. Multicast duplicates date on multiple ports, however, multipath unicast uses multiple path to send but don't duplicate data. What I want to do is to implement multipath unicast, So I don't know whether OpenFlow 1.0 can support it. Thank you !
2012/7/13 Murphy McCauley <[email protected]> > I think this really depends on what you mean by multipath and what you're > trying to accomplish. Certainly you could duplicate data on node or edge > disjoint paths using OpenFlow 1.0 by simply having one or multiple switches > use multiple output actions and installing disjoint paths on the rest of > the switches... > > -- Murphy > > > On Jul 12, 2012, at 5:17 PM, Qingyun Zuo wrote: > > Hi, > Thank you for yor kindly reply. > I know that OpenFlow 1.1 spec add group type which support multipath > or multicast. > However, OpenFlow 1.0 is in the most switches and environment. It is > easy to implent multicast in OpenFlow 1.0, but how could I implement > multipath using flow table entries in OpenFlow 1.0? > > > 2012/7/13 Murphy McCauley <[email protected]> > >> If you add multiple output actions, it simply means that the packet is >> duplicated. >> >> You could rewrite the address to be a multicast address, and you can >> create flow table entries that act on multicast addresses, but there's no >> "built in" support for multicast in the OpenFlow 1.0 spec. Of course, a >> switch may have its own multicast behavior outside of OpenFlow, but that's >> up to the switch. >> >> Hope that helps. >> >> -- Murphy >> >> On Jul 12, 2012, at 1:08 AM, Qingyun Zuo wrote: >> >> Hi, >> Does OpenFlow switch support multipath unicast? or multicast? >> When I edit a flow entry, I add two egress ports to the ACTION, is >> it multicast? >> >> -- >> Best Regards >> Zuo Qingyun >> >> >> > > > -- > Best Regards > Zuo Qingyun > > > -- Best Regards Zuo Qingyun
