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. 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