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I-D ACTION:draft-ietf-mmusic-sdpng-trans-03.txt



A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Multiparty Multimedia Session Control Working Group of the IETF.

	Title		: SDPng Transition
	Author(s)	: J. Ott, C. Perkins
	Filename	: draft-ietf-mmusic-sdpng-trans-03.txt
	Pages		: 15
	Date		: 2003-2-19
	
The Session Description Protocol (SDP) is today widely used in the
Internet to announce as well as negotiate multimedia sessions and
exchange capabilities.  Having originally been designed for session
announcements only, as opposed to announcements and capabilities
negotiation announcements, native SDP lacks numerous features to be
applicable in many session scenarios.  Numerous extensions have been
developed to circumvent SDP's shortcomings -- but they have also
repeatedly shown its inherent limitations.  A successor protocol --
termed 'SDPng' for the time being -- is developed to address the
aforementioned needs of Internet applications in a more structured
manner.  With the huge installed base of SDP-based applications, a
migration path needs to be developed to move from SDP to SDPng over
time.  This document outlines how this migration can be achieved: in
general as well as for the various IETF control protocols that
potentially make use of SDP and SDPng.

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