> Multicast GIDs are always mapped to multicast MACs > as is done in IPv6. Some helper functions are added to ib_addr.h. IPv4 > multicast is enabled by translating IPv4 multicast addresses to IPv6 > multicast > as described in > http://www.mail-archive.com/i...@sunroof.eng.sun.com/msg02134.html.
I guess it's a bit unfortunate that the RoCE annex completely ignored how to map multicast GIDs to ethernet addresses (I suppose as part of the larger decision to ignore address resolution entirely). Anyway, looking at the email message you reference, it seems to be someone asking what the right way to map IPv4 multicast addresses to IPv6 addresses is. Is there a more definitive document you can point to? It seems that unfortunately the way the layering of addresses is done, there's no way to just use the standard mapping of IPv4 multicast addresses to Ethernet addresses (since IBoE is does addressing via the CMA mapping to GIDs followed by an unspecified mapping from GIDs to Ethernet addresses). - R. -- Roland Dreier <rola...@cisco.com> || For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/index.html _______________________________________________ ewg mailing list ewg@lists.openfabrics.org http://lists.openfabrics.org/cgi-bin/mailman/listinfo/ewg
