Re: on the point of mobility & multihoming

[Geoff Huston <gih@telstra.net>]

> > In my opinion, you just hit an important issue of multi6 architecture, 
> which
> > this WG is supposed to work on first. If we take Dave Croker's scenario
> > (suggested by Geoff Huston) and generalize it, the problem space is the 
> same
> > as depicted in Geoff's slide (page 3) of "An Architectural View of Multi6
> > proposals" except that the solid line (wired fixed connection) between the
> > exit route and ISP is replace by dotted lines (wireless dynamic
> > connections).

I did stress in my presentation to the wg that slide 3 was misleading in a
number of  ways.

There may be multiple parties to the communication, and they may be
simultaneous or spread over time. The "site exit" router may not know
its role with respect to a particular host in some environments.
Also, Erik Nordmark pointed out that  there may be more than one site exit
router in the path.

My point was that while the diagram assisted with describing the space,
it was a diagram that included some assumptions that are not going
to hold in all cases.

   regards,

   Geoff