RE: [Sip] Re: Issue #163: "where does SDP section live"
Jonathan Rosenberg <jdrosen@dynamicsoft.com> Wed, 19 September 2001 07:04 UTC
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From: Jonathan Rosenberg <jdrosen@dynamicsoft.com>
To: 'Colin Perkins' <csp@isi.edu>, Tom-PT Taylor <taylor@nortelnetworks.com>
Cc: "'sip@ietf.org'" <sip@ietf.org>, confctrl@isi.edu
Subject: RE: [Sip] Re: Issue #163: "where does SDP section live"
Date: Wed, 19 Sep 2001 02:14:46 -0400
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I believe we did agree during mmusic at IETF 51 to make it a separate document. -Jonathan R. --- Jonathan D. Rosenberg, Ph.D. 72 Eagle Rock Ave. Chief Scientist First Floor dynamicsoft East Hanover, NJ 07936 jdrosen@dynamicsoft.com FAX: (973) 952-5050 http://www.jdrosen.net PHONE: (973) 952-5000 http://www.dynamicsoft.com > -----Original Message----- > From: Colin Perkins [mailto:csp@isi.edu] > Sent: Monday, September 10, 2001 8:26 PM > To: Tom-PT Taylor > Cc: 'sip@ietf.org'; confctrl@isi.edu > Subject: [Sip] Re: Issue #163: "where does SDP section live" > > > A common document would seem to make sense, if possible. I > don't think it > should be part of the SDP revision: that ties SDP to one > negotiation model, > which might not be appropriate for all scenarios. > > Colin > > > > > --> "Tom-PT Taylor" writes: > >I've clipped this description from Rohan Mahy's note, > assuming it reflects > >Jonathan's statement: > > > > >#163 "where does SDP section live" > > >Issues: SIP spec has an appendix with SDP usage; > > >Not really a SIP issue at all; > > >Other descriptions will come along; > > >Sync issue with SDP spec; > > >Beefiness of SIP spec already > > >Some ideas: Separate RFC, Incorporate into SDP revision, > Keep it as it is > > >Proposal: Keep it as it is > > > >The implication of the decision on this issue is either that > the negotiation > >model for SDP is application-specific (implication if the > SDP annex stays) > >or that the negotiation model is general (implication if the > annex becomes a > >separate document in MMUSIC). > > > >Megaco might be a bit different if a general document on SDP > negotiation had > >been available in 1999. As it is, we built specific support > for our model > >into the Megaco protocol. > > > >My point is that we should consider what is the best approach looking > >forward. When SDPng comes along, will we again face the necessity of > >defining how it is used with each application, or will it be > possible to > >define a common view? > > > >My personal preference is for a common document. I think it > is possible, > >although it may contain different sections governing the operation of > >different functions. For example, there may be a difference > in the model > >used to reveal capabilities (a Megaco requirement), as opposed to > >negotiating a specific media flow (a requirement common to > Megaco and SIP). > > > >Tom Taylor > >taylor@nortelnetworks.com > >Ph. +1 613 736 0961 (ESN 396 1490) > > _______________________________________________ > Sip mailing list http://www1.ietf.org/mailman/listinfo/sip > This list is for NEW development of the core SIP Protocol > Use sip-implementors@cs.columbia.edu for questions on current sip > Use sipping@ietf.org for new developments on the application of sip > _______________________________________________ Sip mailing list http://www1.ietf.org/mailman/listinfo/sip This list is for NEW development of the core SIP Protocol Use sip-implementors@cs.columbia.edu for questions on current sip Use sipping@ietf.org for new developments on the application of sip
- [Sip] Issue #163: "where does SDP section live" Tom-PT Taylor
- [Sip] Re: Issue #163: "where does SDP section liv… Colin Perkins
- RE: [Sip] Re: Issue #163: "where does SDP section… Jonathan Rosenberg