RE: Minutes / Notes

["marcelo bagnulo" <marcelo@it.uc3m.es>]

Hi Iljitsch,

> -----Mensaje original-----
> De: owner-multi6@ops.ietf.org [mailto:owner-multi6@ops.ietf.org]En
> nombre de Iljitsch van Beijnum
> Enviado el: sabado, 19 de julio de 2003 20:17
> Para: J. Noel Chiappa
> CC: multi6@ops.ietf.org
> Asunto: Re: Minutes / Notes
>
>
> On zaterdag, jul 19, 2003, at 19:15 Europe/Amsterdam, J. Noel Chiappa
> wrote:
>
> > I don't think it's realistic to propose the addition of two separate
> > mechanisms to do multi-homing, with slightly different capability sets
> > - one
> > able to keep conections open, and one not (I assume that this latter
> > is done
> > by picking one of N addresses, with no capability to change it).
>
> I agree that having two or more mechanisms is undesirable in the long
> run.
>
> On the other hand, solving the source address / ingress filtering issue
> (which we almost certainly need to do for loc/id anyway) would make it
> possible to achieve many multihoming benefits by only slightly
> modifiying applications, i.e., let them cycle through all possible
> addresses. This is of course not nearly as good as a full solution, but
> it is much better than what we have now.
>
> I'm not a big fan of bringing mobility in the picture, though. I
> haven't seen any figures on the implementation status of MIPv6 in our
> collective favorite OSes, but it hardly seems omnipresent. When also
> considering the complexity of MIPv6 and the fact that MIP assumptions
> fail badly for multihoming I don't see much value in a MIP approach to
> multihoming.
>
> (If I could I would even like to go further by scrapping MIPv6
> wholesale and starting fresh with loc/id for both multihoming and
> mobility.)
>
>
I guess i agree with most of your comments, however i think that you are
missing an important issue which is timing.
MIPv6 is already an RFC and it is being deployed now, so soon CN
functionality can be on most implementations.
So we could do a whole new stuff (and i think we need to do it) but
meanwhile we should benefit from this mipv6 capabilities which will be
available on nodes.

Regards, marcelo