Re: [Roll] multicast DAO

[Richard Kelsey <richard.kelsey at ember.com>]

> Date: Wed, 25 Nov 2009 10:43:41 +0100
> From: "Julien Abeille (jabeille)" <jabeille at cisco.com>

> > From: Philip Levis [mailto:pal at cs.stanford.edu] 
> > Sent: vendredi 20 novembre 2009 19:31
> >
> > Point-to-point communication between nodes is needed by some 
> > applications. Section 5.2.2 of 
> > draft-ietf-roll-building-routing-reqs-07:
> > 
> > "A network device MUST be able to communicate in a 
> > point-to-point manner with any other device on the network."
>
> Sure, and DAOs (whether stored only at root are not) solve this issue.
> May not be the most efficient, but the sceanrios multicast DAOs solve
> are so limited that we will end up with 10 solutions for 10 scenarios if
> we go that path.
> 
> I would personaly drop multicast DAOs

I agree.  As we have done with unicasts, we need to look
carefully at the multicast requirements and find ways to
solve the easy and/or common cases first.  I do not think
that there is a workable one-size-fits-all multicast
solution.
                                     -Richard Kelsey