On Wed, Jul 06, 2011 at 11:28:53AM -0700, Ethan Jackson wrote: > > Based on the discussion, I don't object to sending a gratuitous ARP > > when we rebalance. ?But naively dropping traffic that comes in on the > > wrong slave when rebalancing is going to cause trouble, because it > > will cause some packets to get dropped during the transition. ?I think > > that we would need a "grace period" of a second or two during which we > > accept traffic on the old and new link, or some other heuristic to > > figure out when the next-hop switch has switched links. > > Are we chasing a long tail here? We have equivalent behavior to > Xenserver running the bridge. I think generally things are less > painful for users to migrate the more we mimic them. If people care > that much about the possibility of the occasional DUP on failover they > can switch to a LACP bond. > > If we decide to drop traffic, I think a reasonable strategy would be > to send a gratuitous arp on the first packet which comes in the wrong > slave, wait for a 1 or 2 second grace period, and then drop traffic.
I agree, on both points. Sanjay? _______________________________________________ dev mailing list [email protected] http://openvswitch.org/mailman/listinfo/dev
