On 7 Nov 2012, at 14:50, "Teco Boot" <[email protected]> wrote:
> This should be in the homenet-arch, I think. > > It sounds so obvious to me, that I described this in a short text in BRDP: > A Router should request a prefix for attached subnetworks, with > DHCP-PD [RFC3633], where there is at that moment no on-link prefix > for a selected Border Router. > > I could make the should a MUST. Disagree. Hierarchical or flat PD (with relays) don't work for multihomed sites, have problems with arbitrary topplogies etc. Cheers, Ole > > Teco > > Op 7 nov. 2012, om 16:46 heeft Ted Lemon het volgende geschreven: > >> I don't have a particular preference for DHCP-PD over OSPF in homenets, but >> I just wanted to quickly contradict what's been said by several people at >> the mic: that figuring out what prefix to delegate is hard. It's not hard, >> actually―it's dead easy. The reason folks think it's hard is because >> they're solving the wrong problem. >> >> The problem that needs to be solved is how we number each home subnet. The >> answer to this question is, "with a /64." There is no other answer. You >> never want to number a subnet with a /52. Therefore, the delegating router >> should never delegate anything but a /64. Problem solved. >> >> I think the disconnect here is that people are thinking the routers to which >> prefixes are delegated need to themselves be delegating routers, but this is >> incorrect. What they need to do is _relay_ prefix delegation requests to >> the delegating router from which they got their own delegation. >> >> This scales to multi-homing with multiple delegating routers―you just relay >> every PD request upstream to all delegating routers. >> >> I'd be happy to write a draft that describes how this works if someone >> actually wants it; I get the sense that people are pretty in love with the >> OSPF solution and would prefer not to be distracted, and I have no argument >> with that if that's the working group consensus. >> >> _______________________________________________ >> homenet mailing list >> [email protected] >> https://www.ietf.org/mailman/listinfo/homenet > > _______________________________________________ > homenet mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/homenet _______________________________________________ homenet mailing list [email protected] https://www.ietf.org/mailman/listinfo/homenet
