On Thu, 2005-09-29 at 14:38, Sean Hefty wrote: > Hal Rosenstock wrote: > >>If we restrict IB to a single subnet, do we need to worry about IP routing? > >> My > >>assumption was no. Is this an invalid assumption? > > > > I think so. There is nothing that precludes having multiple IPoIB > > subnets on the same IB subnet. > > This seems similar to having multiple IP subnets on the same Ethernet subnet. > > I'm struggling with understanding how translation can even occur in this > case. > What DGID is used when querying for the path record, and how is it obtained?
Isn't it the DGID of the next hop IP router ? (I suppose in the case of multiple IPoIB subnets on the same IB subnet, it could shortcut somehow like NHRP does in terms of ATM v. CLIP (Classic IP over ATM). > If this is a valid configuration, then it seems that we're still > without a solution. I'm not following you on this. > What does SDP do in this case? Same as AT. It does the route lookup and ARPs for and then asks for the PathRecord of the next hop IP router. -- Hal _______________________________________________ openib-general mailing list [email protected] http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
