Re: [Sip] Inadequate Requirements for draft-ietf-sip-199-00

["Christer Holmberg" <christer.holmberg at ericsson.com>]

Hi Francois,

As was agreed during the "requirements phase", we are not going to solve the HERPF problem as part of this task. Nobody objected to that. 

It was agreed that the scope is to only be able to indicate that the early dialog has been terminated.

I have tried to explain different kind of "resources" for which the mechanism could be useful. 

If you want to start a separate work item in order to solve (with or without using 199) other problems you are free to propose such work :) 

Regards,

Christer



-----Alkuperäinen viesti-----
Lähettäjä: Francois Audet [mailto:audet at nortel.com]
Lähetetty: ma 4.8.2008 22:17
Vastaanottaja: sip at ietf.org
Kopio: Christer Holmberg
Aihe: Inadequate Requirements for draft-ietf-sip-199-00
 
I believe that the Requirents section for this draft is completely inadequate.
 
The only material in section 3 is the following:

	REQ 1: It must be possible to indicate to the UAC that an early dialog has been 
	terminated before a final response is sent.

This is almost as good as "REQ: It must be possible to do whatever this draft says".

This draft must really explain what it is trying to achieve. The Introduction has a bunch
of text that describes what looks and smells exactly like the HERFP problem.

In Dublin, it was stated that this draft does not attempt to solve the HERFP problem. If
that is the case, then I am completely baffled by what exactly is it trying to solve. Yes,
there is a little bit of wording about the need to "release resources" (whatever that means),
but I find it a little bit hard to swallow that we need new protocol for that.

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