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 ? -- Hal > Perhaps some of the Obsidian guys could comment? > > - R. > _______________________________________________ > 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
