All things related to multicast

[Joel Jaeggli <>]

On Wed, 9 Jul 2003, Bill Fenner wrote:

> 
> On Wed, Jul 09, 2003 at 02:17:38PM -0700, Joel Jaeggli wrote:
> > 
> > It was never clear to me why a host to router signaling mechanism had 
> > to be different from the router to router signaling mechanism.
> 
> Here's one reason: because if we had this conversation in 1993 we
> would have made the host to router signalling mechanism DVMRP, or
> maybe we would have been looking toward the future and made it MOSPF.
> 
> The generalization of that is the goal is to be able to evolve
> the routing protocol independently of the host<>router interface.
> Since there are orders of magnitudes more hosts to change than
> routers when a protocol changes, this theoretically makes the
> infrastructure more able to change piecemeal.

except that it's hasn't in practice because we have two things that w e 
than have to evolve in parallel.
 
>   Bill
> 

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