Hey Glen, This is a known issue - right now, broadcast and multicast packets are naively flooded out all ports except the ingress one. At some point we'll be using spanning tree to fix this, although I'm not positive what the timeline is. I'll get back to you on that.
Natasha On Jul 15, 2008, at 6:23 PM, Glen Gibb wrote: > Here's a dump of the messages to the NOX controller showing the loop > happening. > > Glen > > > > Glen Gibb wrote: >> Just pyrouting and pyauthenticator >> >> Glen >> >> >> >> Junda Liu wrote: >> >>> Which apps are you running on nox? >>> >>> Best, >>> Junda >>> >>> On Jul 15, 2008, at 5:47 PM, Glen Gibb wrote: >>> >>> >>>> Hi all, >>>> >>>> We have a setup here of three OpenFlow switches in a ring: mvm- >>>> ofroot, >>>> mvm-of1 and mvm-of2 >>>> >>>> It seems that NOX doesn't do any type of spanning tree when >>>> flooding >>>> packets. I have an arp packet coming in to ofroot from the >>>> "outside". >>>> ofroot then seems to flood to of1 and of2. These switches then >>>> dutifully >>>> try flooding the packet themselves. We end up with ARPs floating >>>> around >>>> in a loop :-( >>>> >>>> Are you guys aware of this issue? Is there a planned fix for this? >>>> >>>> Thanks, >>>> Glen >>>> >>>> _______________________________________________ >>>> nox-dev mailing list >>>> [email protected] >>>> http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org >>>> >>> >> >> >> _______________________________________________ >> nox-dev mailing list >> [email protected] >> http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org >> >> > > <loop.dump>_______________________________________________ > nox-dev mailing list > [email protected] > http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org _______________________________________________ nox-dev mailing list [email protected] http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org
