Re: [Ieprep] I-D ACTION:draft-ietf-ieprep-framework-03.txt

Indeed. The requirements draft takes great pains to be solution-neutral 
and thus does not address a specific mechanism. In reality, the number 
of possibilities aren't infinite, given the constraints of the protocol. 
There will shortly be a solution-oriented draft that does indeed propose 
a new header field, after trying to exhaustively go through all the 
design options and identifying why no other solution satisfies the 
requirements stated. As always, I might have missed possibilities or 
solutions, but I'm sure that participants in this and SIP-related 
working groups won't be shy in pointing out any such omission.

In short, Janet is correct.

Gunn, Janet wrote:
> Maybe Henning can clarify, but the current version of
> draft-ietf-ieprep-sip-reqs-03.txt says
> "This document describes requirements rather than possible existing or
>    new protocol features. Although it is scoped to deal with SIP-based
>    applications, this should not be taken to imply that mechanisms have
>    to be SIP protocol features such as header fields, methods or URI
>    parameters."
> 
> It presents requirements for which a new header field is the "obvious"
> solution, but no longer states it as a requirement FRO a header field.
> 
> -----Original Message-----
> From: Ken Carlberg [mailto:K.Carlberg@cs.ucl.ac.uk]
> 
> 
>>Pg 11 reference to Henning's document - it no longer refers explicitly
>>to headers.
> 
> 
> the original passage is:
> 
>    [15] is a (soon to be) RFC that defines the requirements for a new
>    header field for SIP in reference to resource priority.  This new
>    header field is meant to provide an additional measure of distinction
>    that can influence the behavior of gateways and SIP proxies.
> 
> my understanding is that it pertains to requirements for a header *field*.  
> so yes, we are in agreement.
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