On 7/11/2012, at 11:20 AM, Ted Lemon <mel...@fugue.com> wrote: > On Nov 7, 2012, at 11:05 AM, Andrew McGregor <andrewm...@gmail.com> wrote: >> Recursive PD seems to inherently need some administrative input. BTW, our >> switch implementation can do either. > > I don't see what admin input it requires. The CPE edge router knows it's > got a delegation, and signals to adjacent routers that it can act as a > delegating router. Routers that get /64 delegations know that they can't > act as delegating routers, and instead act as relays to the CPE edge router. > This can all be done automatically. >
But that's single-delegating-router, not recursive. The problem with recursive is figuring out what prefix length a sub-delegating router is going to ask for from its upstream. For a single-delegating-router setup, you just ask for either a bunch of /64s or something that just contains enough of those to cover all your downstream interfaces. In a recursive situation, you don't know what you will need further downstream. Andrew _______________________________________________ homenet mailing list homenet@ietf.org https://www.ietf.org/mailman/listinfo/homenet
