Can we please remove ieee-ietf-co...@ietf.org from this conversation? Once we as the IETF figure out what to write down and discuss, that'll be a good time to interact, but I think this conversation is really not the point of that list.
It's already cc'd to mboned and homenet... Thanks, Alia On Tue, Aug 11, 2015 at 12:08 PM, Toerless Eckert <eck...@cisco.com> wrote: > On Mon, Aug 10, 2015 at 10:43:56AM +0000, Pascal Thubert (pthubert) wrote: > > Yes it is. IP over Foo must indicate if IP multicast over a link uses L2 > mechanisms or not. > > > > If not, a router learns from MLD the state it needs to figure to which > devices it should copy a given packet. > > Well, the problem with WiFI is that L2 multicast are useful under some > conditions and not useful under others. And the conditions are more > complex than boolean ;-) > > > For Wi-Fi, there is no multicast support and it is sufficiently clear > now that relying on broadcast is not a good idea. > > Pretty sure you don't mean that. If you would eliminate ALL multicast, you > didn't have discovery of new devices. > > > Rather, a good idea could be to build a multilink subnet with APs that > are also routers to serve the wireless edge, whereby the Ethernet backbone > can rely on L2 broadcast while the wireless edge is routed. Many LLNs work > like this. Why should Wi-Fi be an exception? > > Thats why i asked what device model we need. Don't think i got an > answer for that though. L3 homenet APs would be lovely. But will it > be sufficient to ONLY support those theoretical devices in homenet ? > > > > Again, if if's IPs problem then if 802.11 would just clearly state > that this is > > > the case, then we have a way forward. I just hope 802.11 understand > that > > > it'll see a lot more unicast coming its way and be prepared to handle > it. > > > > I'd hate this, IEEE telling IETF what to do. Just like IETF telling IEEE > to do an immensely scalable L2 multicast support so that Solicited Node > Multicast appears so cool on a switched fabric? Does not seem to work > either. > > Sure. > > > The IETF has to decide if it wants to design IP over 802.11 - or Wi-Foo > in general which would be my take. And then the IETF has to decide if it > wants to design IP over a mix of Wi-Fi and Ethernet. IEEE people may join > the effort so we do the job right. > > Getting IPv6 link signaling work with WiFi sucking L2 multicast > is just a bit of work in the L2 IPv6 protocols that can be done > IMHO without botrhering IEEE. Getting streaming multicast work > best requires more L2 awareness and it doesn't seem homenet > is interested in thast anyhow, so i think we're only going to get > a solution for the L2 IPv6 signaling piece realistically in the > IETF alone. > > Cheers > toerless > > _______________________________________________ > homenet mailing list > homenet@ietf.org > https://www.ietf.org/mailman/listinfo/homenet >
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