TE-operator call for presentations/input (multi-area)

[Ed Kern <ejk@tech.org>]

We are starting to take the first steps in the direction of defining
requirements for multi-area TE.


This was not fully fleshed out in Network Hierarchy and Multilayer
Survivability (RFC3386) for several reasons.  At the time, the
chairs, AD's, design team and WG simply werent sure if this was
necessary or that if there was enough operator need to properly scope
this work.

Currently on the list we have been discussing requirements in the
context of draft-zhang-mpls-interas-te-req-01.txt.  Before we proceed
much further, the chairs would like to hear from operators who are:

1. *Currently* in need of a multi-area solution on a production
2. Currently deploying a version/flavor of multi-area TE.
3. Waiting on a standard/guidance before planning/deploying
4. Feel that these requirements should be scoped out regardless of
   current operational requirements.

This is not an attempt to rope you into assisting with the current
draft but more a request to:

1. Present current protocol limitations/concerns at next ietf
2. Discuss them on the list here

We are specifically trying to target front-line engineering and
operational efforts.  We understand that from an architectural
perspective, having the path to multi-area and multi-as solutions
is desirable.  However, we are uncertain how much of this is pulling
up into *real* obstacles at this time.

Ed & Jim