RE: requirements draft revision

["Tony Hain" <alh-ietf@tndh.net>]

In multi6-multihoming-requirements requirement - 3.1.3 Performance -  is
simply bogus. The example given is managing traffic flows to avoid a
specific remote congestion point. As it is not possible for any organization
to reliably affect the routing policies of another organization (even the
first hop), this is basically an unrealistic expectation. Taken to the
limit, the requirement presented means every site has ultimate real-time
control of routing policy for every service provider as well as all the
remote sites they have active flows with. Even if each service provider
wanted to cede control, the mismatch of policy constrains between the
collections of end sites will assure this requirement can't be met because
it has to be true for each of them.

Since I assume you have some specific implementation in mind it might help
if there were an example provided. Without that this requirement simply
needs to be removed.

Tony


-----Original Message-----
From: owner-multi6@ops.ietf.org [mailto:owner-multi6@ops.ietf.org]On Behalf
Of Joe Abley
Sent: Tuesday, June 26, 2001 5:13 AM
To: multi6@ops.ietf.org
Subject: requirements draft revision

Hi,

I've been sitting on this for a few days now, so I think it's time to
throw it out for discussion. Note that I haven't given Ben time to check
this over, so if there are gross errors they are mine and Vijay's, and
you shouldn't blame him.

I'm not happy with the requirements on transport-layer stability and
survivability, but I wasn't able to find clear consensus in the mail
archives on the issue. Perhaps we can put that issue to bed in -02.

I have split out the description of v4 multi-homing to a separate
document, as I think that makes things clearer. The v4 document is
somewhat green, and could do with some attention (it might be useful to
re-order the points as a compliance document against the reqs draft,
for example, so it is more clear where it is deficient and where it
exceeds the requirements).

Anyway, flame on.


http://www.automagic.org/~jabley/draft-ietf-multi6-multihoming-requirements-
01.txt
  http://www.automagic.org/~jabley/draft-ietf-multi6-v4-multihoming-00.txt


Joe