Re: [homenet] draft-boutier-homenet-source-specific-routing-00

[Juliusz Chroboczek <[e-mail]>]

> I am looking at the problem from the link-state point of view.

You're assuming that non-source-specific routers drop source-specific
routes, right?

> Lets assume there is a random mixture of source-routing aware and
> non-aware routers. The only restriction is that there is a
> source-aware path of routers between all gateways (gateways to the are
> of course source-aware too).

Yeah, that's exactly what we describe in 4.1.

> Every non-source-aware default route will bring the traffic into the
> source-aware region around the gateways, which mean they should reach
> the desired gateway (even if it hit a different gateway first).

Yes.  Hence the language at the end of 4.1.

A related question is whether it is okay to reannounce a source-
specific route as a non-specific one, for the sake of legacy routers.
(This is analogous to aggregation -- reannouncing a more specific
route as a less specific one.)  The general answer is no, so I was
wondering if you'd identified a class of topologies where it is okay
to do so.  Does anyone know any good papers describing when aggregation
is safe?

-- Juliusz