On Sun, 2006-02-12 at 08:25, Eitan Zahavi wrote: > Hi > > The issue with IPoIB address change is not just LID change but also QP > change. > (IPoIB define the MAC to be QP,GID) . > > Anytime you do ifconfig down/up you might get a new QP and thus you need > to refresh the ARP... > > I second Mike K. and propose we use gratuitous ARP reply whenever an > IPoIB interface is brought up.
That helps but not sure this is a total solution as I think there are nodes which do not cache a gratutious response unless they requested it (as it is not a requirement to do so). -- Hal > > I wonder if this is why when I reload the IB drivers on one node > > I sometimes have to reload them on other nodes too. Otherwise > > ping over IPoIB doesn't work. > > > > > The remote LID may get changed for other reasons too without an SM > > > change (SM merge of 2 separate subnets). How can this be handled ? > > > > Isn't this just another case of the SM changing for one of the > subnets? > > > > grant > > _______________________________________________ > > openib-general mailing list > > [email protected] > > http://openib.org/mailman/listinfo/openib-general > > > > To unsubscribe, please visit > http://openib.org/mailman/listinfo/openib-general _______________________________________________ openib-general mailing list [email protected] http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
