Re: [RAI] Conference Focus Indicating CCMP Support draft
"DRAGE, Keith (Keith)" <keith.drage@alcatel-lucent.com> Thu, 11 April 2013 01:26 UTC
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From: "DRAGE, Keith (Keith)" <keith.drage@alcatel-lucent.com>
To: "Shekh-Yusef, Rifaat (Rifaat)" <rifatyu@avaya.com>, Robert Sparks <rjsparks@nostrum.com>
Thread-Topic: Conference Focus Indicating CCMP Support draft
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Date: Thu, 11 Apr 2013 01:26:36 +0000
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Cc: "rai@ietf.org" <rai@ietf.org>
Subject: Re: [RAI] Conference Focus Indicating CCMP Support draft
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I prefer the approach to that defines the ABNF in a way that allows it to be extended with info-purpose-choices =/ "foo" in a future specification or other document. Keith > -----Original Message----- > From: rai-bounces@ietf.org [mailto:rai-bounces@ietf.org] On Behalf Of > Shekh-Yusef, Rifaat (Rifaat) > Sent: 10 April 2013 18:51 > To: Robert Sparks > Cc: rai@ietf.org > Subject: Re: [RAI] Conference Focus Indicating CCMP Support draft > > Adding the RAI distribution to this discussion per Robert's request. > > > Thanks Robert, > > > That _redefines_ Call-Info even if it leaves the syntax the same. > > The definition for the header would be in _this_ document, not in 3261 > > if you leave the ABNF like this. > > I now understand your concern. > I would like to go with the option of removing the ABNF and just define > the new value. > > > Do others see value with the second option: > > > But if you do mess with the ABNF, make this change: > > > > info-param = ( "purpose" EQUAL ( info-purpose-choices) ) / generic-param > > info-purpose-choices = "icon" / "info" / "card" / "ccmp " / token > > > > so that the _next_ draft that comes along that wants to add a purpose > > choice can simply say > > info-purpose-choices =/ "foo" > > > > If you go down this path, you should also check with the community > > whether we should > > create an IANA registry for these choices. I don't think it's worth it, > > but there have been > > similar conversations where the rough consensus was to create one. > > > Thanks, > Rifaat > > > > -----Original Message----- > > From: Robert Sparks [mailto:rjsparks@nostrum.com] > > Sent: Wednesday, April 10, 2013 1:29 PM > > To: Shekh-Yusef, Rifaat (Rifaat) > > Cc: Gonzalo Camarillo; rlb@ipv.sx; Mary Barnes; Alan Johnston > > Subject: Re: Conference Focus Indicating CCMP Support draft > > > > On 4/10/13 12:08 PM, Shekh-Yusef, Rifaat (Rifaat) wrote: > > > Hi Robert, > > > > > > Thanks for your feedback. > > > > > >> The one thing that sticks out is the complete redefinition of the > > >> Call-Info header syntax just to add a parameter > > >> to info-param. > > > The draft is not changing the syntax of the Call-Info header; the > > absoluteURI will be an XCON-URI and we are defining a new "ccmp" token > > to indicate that the URI supports ccmp. > > > Where do you see that we are redefining the syntax? > > The draft contains this: > > > > The following is the updated ABNF for the Call-Info header: > > > > Call-Info = "Call-Info" HCOLON info *(COMMA info) > > info = LAQUOT absoluteURI RAQUOT *( SEMI info-param) > > info-param = ( "purpose" EQUAL ( "icon" / "info" > > / "card" / "ccmp" / token ) ) / generic-param > > > > That _redefines_ Call-Info even if it leaves the syntax the same. > > The definition for the header would be in _this_ document, not in 3261 > > if you leave the ABNF like this. > > > > At the very least, don't restate Call-Info and info. Redefine only > > info-param. > > > > You could just define the value and not mess with the ABNF. That is the > > avenue I would recommend. > > > > But if you do mess with the ABNF, make this change: > > > > info-param = ( "purpose" EQUAL ( info-purpose-choices) ) / generic-param > > info-purpose-choices = "icon" / "info" / "card" / "ccmp " / token > > > > so that the _next_ draft that comes along that wants to add a purpose > > choice can simply say > > info-purpose-choices =/ "foo" > > > > If you go down this path, you should also check with the community > > whether we should > > create an IANA registry for these choices. I don't think it's worth it, > > but there have been > > similar conversations where the rough consensus was to create one. > > > > Also, it's unfortunate that this conversation isn't on a list. If we > > continue, please add a list to the distribution. > > I suggest rai@ietf.org. > > > > RjS > > > > > > > > > > > > Regards, > > > Rifaat > > > > > > > > >> -----Original Message----- > > >> From: Robert Sparks [mailto:rjsparks@nostrum.com] > > >> Sent: Wednesday, April 10, 2013 10:35 AM > > >> To: Gonzalo Camarillo > > >> Cc: Shekh-Yusef, Rifaat (Rifaat); rlb@ipv.sx; Mary Barnes; Alan > > Johnston > > >> Subject: Re: Conference Focus Indicating CCMP Support draft > > >> > > >> We had not yet started. The next step is for the authors to request > > >> publication (when they believe it is ready), > > >> and you or Richard can start fresh with an initial AD review. > > >> > > >> I skimmed the version of the draft linked to below - I still don't > > >> expect controversy or much in the way of changes. > > >> The one thing that sticks out is the complete redefinition of the > > >> Call-Info header syntax just to add a parameter > > >> to info-param. It would be much better to find a way to use the > > >> Incremental Alternative (=/) production rule. > > >> If that's not possible the way Call-Info is currently defined, we > > should > > >> redefine it _once_ to make it possible. > > >> IIRC there are other things in flight that are touching Call-Info - > > you > > >> should make sure they're aligned. > > >> > > >> RjS > > >> > > >> On 4/10/13 3:01 AM, Gonzalo Camarillo wrote: > > >>> Hi Robert, > > >>> > > >>> the authors of the draft below just sent us the email below. They > > >>> mention you had agreed to AD sponsor it. What is the next step here > > so > > >>> that Richard or I can take this over? > > >>> > > >>> Thanks, > > >>> > > >>> Gonzalo > > >>> > > >>> On 09/04/2013 9:47 PM, Shekh-Yusef, Rifaat (Rifaat) wrote: > > >>>> Gonzalo, Richard, > > >>>> > > >>>> > > >>>> > > >>>> Mary and I have been working on the following "Conference Focus > > >>>> Indicating CCMP Support" draft, which Robert agreed to AD sponsor a > > >>>> while back. > > >>>> > > >>>> https://datatracker.ietf.org/doc/draft-yusef-dispatch-ccmp- > > >> indication/?include_text=1 > > >>>> > > >>>> > > >>>> The draft is simple and straightforward which was discussed on the > > >>>> DISPATCH mailing list. > > >>>> > > >>>> Robert Sparks, Alan Johnston, Cullen Jennings, and Adam Roach all > > >>>> reviewed it and provided feedback which was incorporated into the > > >> latest > > >>>> version of the draft. > > >>>> > > >>>> Alan Johnston is the document shepherd and he worked on the writeup > > >> for > > >>>> this draft. > > >>>> > > >>>> > > >>>> > > >>>> Now that Robert is no longer an AD, can one of you please sponsor > > >> this > > >>>> draft instead? > > >>>> > > >>>> > > >>>> > > >>>> Thanks, > > >>>> > > >>>> Rifaat > > >>>> > > >>>> > > >>>> > > >>>> > > >>>> > > _______________________________________________ > RAI mailing list > RAI@ietf.org > https://www.ietf.org/mailman/listinfo/rai
- Re: [RAI] Conference Focus Indicating CCMP Suppor… Shekh-Yusef, Rifaat (Rifaat)
- Re: [RAI] Conference Focus Indicating CCMP Suppor… DRAGE, Keith (Keith)
- Re: [RAI] Conference Focus Indicating CCMP Suppor… Paul Kyzivat
- Re: [RAI] Conference Focus Indicating CCMP Suppor… Shekh-Yusef, Rifaat (Rifaat)
- Re: [RAI] Conference Focus Indicating CCMP Suppor… Paul Kyzivat
- Re: [RAI] Conference Focus Indicating CCMP Suppor… Dale R. Worley
- Re: [RAI] Conference Focus Indicating CCMP Suppor… Shekh-Yusef, Rifaat (Rifaat)
- Re: [RAI] Conference Focus Indicating CCMP Suppor… Shekh-Yusef, Rifaat (Rifaat)
- Re: [RAI] Conference Focus Indicating CCMP Suppor… Paul Kyzivat
- Re: [RAI] Conference Focus Indicating CCMP Suppor… Gonzalo Camarillo