On Thu, 2006-05-11 at 13:29, Roland Dreier wrote: > Sean> We currently use ARP to resolve an IP address to a DGID, > Sean> which I don't believe will work across a router. Does an > Sean> app even know enough to be able to get a path record? > > I think you're fine. The IB router just has to handle forwarding > multicasts
Specifically IPoIB broadcast > between two IB subnets for ARP to work. Yes, because an IPoIB subnet can span multiple IB subnets. > If there's also an IP router in between the two hosts when the hosts are on different IP(oIB) subnets. > then there's a problem, but I don't think it's that reasonable > to expect to make a direct RDMA connection in that case. That's a different case; you don't ARP off your IPoIB subnet; you get the next hop router towards that IPoIB subnet. -- Hal > - 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
