Re: [Teas] WG adoption poll - draft-zhao-teas-pcecc-use-cases

["Adrian Farrel" <[e-mail]>]

Hi Pavan,
 
Yes, I think we should have a document that builds on draft-ietf-teas-pce-central-control by expounding some use cases so that people can understand what they might want to build and what protocol work might be needed. We need to be careful to understand whether we are aiming for:
- a complete list of all possible use cases
- some of the major *potential* use cases
- a few wide-ranging examples
- those use cases that people are really keen to build and deploy.
Maybe it would be good to make that decision as part of adoption, and to flag it in the Abstract and Introduction as the purpose of the document.
 
A couple of points on this revision of the document...
 
Maybe the chairs will want to sort out the front page author list before adoption to save having the (painful) debate later.
 
Why is this document positioned as Experimental? In view of draft-ietf-teas-pce-central-control it would seem that we have moved beyond an experiment.
 
But, saying that, I am quite surprised to see no reference made to draft-ietf-teas-pce-central-control. In fact, that document makes nearly all of Section 1 redundant. 
 
Section 3 is a surprise and, I think belongs in the PCE WG. But (maybe more to the point) this looks like a rather random set of protocol requirements driven by some of use cases, but in no way generic. For example, requirement 6 doesn't seem to be applicable to the use case in Section 10. My suggestion would be to completely remove Section 3, and not worry about it. Protocol requirements will follow obviously from the use cases as/when the PCE WG looks at any necessary protocol extensions.  (This especially in view of Section 14.)
 
Compared with the other use cases, Section 4 seems very terse and does not really explain the use case.
 
I make no comment on which use cases I think are viable and which not. I suspect developers and (more important) operators need to discuss that.
 
Thanks,
Adrian
 
 
From: Teas [mailto:[e-mail]] On Behalf Of Vishnu Pavan Beeram
Sent: 08 February 2017 11:06
To: [e-mail]
Cc: TEAS WG Chairs
Subject: [Teas] WG adoption poll - draft-zhao-teas-pcecc-use-cases
 
All,

This is start of a two week poll on making
draft-zhao-teas-pcecc-use-cases-02 a working group document. Please
send email to the list indicating "yes/support" or "no/do not
support". If indicating no, please state your reservations with the
document. If yes, please also feel free to provide comments you'd
like to see addressed once the document is a WG document.

Note: an IPR disclosure has been made on this document, see
https://datatracker.ietf.org/ipr/2940/  <https://datatracker.ietf.org/ipr/2940/> 

The poll ends February 22.

Thanks,
Pavan and Lou