Re: An idea: GxSE

["Jon (Taz) Mischo" <taz@tazlore.com>]

On Wed, 20 Jun 2001, Paul Francis wrote:

> > the beginning of the connection. Renumbering can happen always after
> > that so that your peer does not know your new address. Am i missing
> > something ?
> >
> 
> yeah.  GxSE does not try to bind to new addresses that appear after a
> connection is already established.  New prefixes cannot be used by old
> connections.  I don't think maintaining connections in the face of new
> prefix assignments is a very important problem to solve.  It won't happen
> *that* frequently, and overlapping being-added prefixes and being-deleted
> prefixes for a time will suffice for all but the longest-lived connections.

To reiterate for you, Mohan, we're not taling about mobility.  We're
talking about large-scale changes, not one or two hosts, but thousands of
hosts.  If a new prefix is added, it doesn't affect a few hosts, it
affects a large subnet.

I'm hoping Paul and Alain remember who I am, but I don't think I've ever
met you, Mohan.  I'm Jon Mischo (nickname is Taz) from Motorola's Advanced
Network Technologies group.  Anyway, I'm involved in ROHC, somtimes in
TSVWG (for SCTP) and used to be involved in Seamoby and Sigtran (also for
SCTP).  Mobile IP greatly impacts my world (for better or for worse) due
to the nature of our work.  I'm also a fan of Nuclear War :P Oh, and Alain
gets mad when I read and edit drafts in the back of his WG meetings, so
don't do that, he doesn't like it ;)  Introductions out of the way.  As
usual, I digress...so back to the point.

Mobile IP handles the case of a host moving around on a network.  Here
we're addressing the issues of a network moving around on a backbone and
in address space.  What we're trying to solve for here is how to keep a
host unaware that there have been sweeping network changes, including its
own address, while still giving it the ability to operate as if nothing
happened, with confidence that its sessions aren't being hijacked.

And Paul...I'm working on a reply to your previous email...just have to
think about how to say it best.

-Taz

-- 
        "Be liberal in what you accept,
      and conservative in what you send."
--Jon Postel (1943-1998) RFC 1122, October 1989