On Wed, 2006-05-10 at 21:26, Hal Rosenstock wrote: > On Wed, 2006-05-10 at 19:44, Roland Dreier wrote: > > Sean> Does anyone know how the user determines if the grh flag > > Sean> should be set in the ib_ah_attr when allocating an ib_ah? > > Sean> Do they do this by examining the GIDs in a path record? > > > > Good question. It's always needed for multicast, of course. For > > unicast, I guess one could look at whether the subnet prefixes of the > > SGID and DGID are the same, but I'm not sure that's sufficient -- a > > router could conceivably sit between two subnets with the same subnet > > prefix. > > Huh ? In this case, aren't the subnet prefixes are required to be > different ?
Not just different but globally unique, right ? What you are describing is similar to a NAT function for IB which would need to be supported in the IB edge router to that private network. -- Hal > > -- Hal > > > Perhaps some of the Obsidian guys could comment? > > > > - R. > > _______________________________________________ > > openib-general mailing list > > openib-general@openib.org > > http://openib.org/mailman/listinfo/openib-general > > > > To unsubscribe, please visit > > http://openib.org/mailman/listinfo/openib-general > > _______________________________________________ > openib-general mailing list > openib-general@openib.org > http://openib.org/mailman/listinfo/openib-general > > To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general _______________________________________________ openib-general mailing list openib-general@openib.org http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general