Using Interactive Connectivity Establishment (ICE) with Session Description Protocol (SDP) offer/answer and Session Initiation Protocol (SIP)
draft-ietf-mmusic-ice-sip-sdp-12

Document Type Active Internet-Draft (mmusic WG)
Last updated 2017-03-13
Replaces draft-petithuguenin-mmusic-ice-sip-sdp
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MMUSIC                                                 M. Petit-Huguenin
Internet-Draft                                        Impedance Mismatch
Obsoletes: 5245 (if approved)                                 A. Keranen
Intended status: Standards Track                                Ericsson
Expires: September 14, 2017                                S. Nandakumar
                                                           Cisco Systems
                                                          March 13, 2017

    Using Interactive Connectivity Establishment (ICE) with Session
Description Protocol (SDP) offer/answer and Session Initiation Protocol
                                 (SIP)
                    draft-ietf-mmusic-ice-sip-sdp-12

Abstract

   This document describes how Interactive Connectivity Establishment
   (ICE) is used with Session Description Protocol (SDP) offer/answer
   and Session Initiation Protocol (SIP).

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on September 14, 2017.

Copyright Notice

   Copyright (c) 2017 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
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Petit-Huguenin, et al. Expires September 14, 2017               [Page 1]
Internet-Draft              ICE SIP/SDP Usage                 March 2017

   include Simplified BSD License text as described in Section 4.e of
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   This document may contain material from IETF Documents or IETF
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   than English.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  ICE Candidate Exchange and Offer/Answer Mapping . . . . . . .   4
   4.  SDP Offer/Answer Procedures . . . . . . . . . . . . . . . . .   4
     4.1.  Initial Offer/Answer Exchange . . . . . . . . . . . . . .   4
       4.1.1.  Sending the Initial Offer . . . . . . . . . . . . . .   4
       4.1.2.  Receiving the Initial Offer . . . . . . . . . . . . .   7
       4.1.3.  Receipt of the Initial Answer . . . . . . . . . . . .   8
       4.1.4.  Performing Connectivity Checks  . . . . . . . . . . .   9
       4.1.5.  Concluding ICE  . . . . . . . . . . . . . . . . . . .   9
     4.2.  Subsequent Offer/Answer Exchanges . . . . . . . . . . . .  10
       4.2.1.  Generating the Offer  . . . . . . . . . . . . . . . .  10
       4.2.2.  Receiving the Offer and Generating an Answer  . . . .  13
       4.2.3.  Receiving the Answer for a Subsequent Offer . . . . .  16
       4.2.4.  Updating the Check and Valid Lists  . . . . . . . . .  17
   5.  Grammar . . . . . . . . . . . . . . . . . . . . . . . . . . .  18
     5.1.  "candidate" Attribute . . . . . . . . . . . . . . . . . .  19
     5.2.  "remote-candidates" Attribute . . . . . . . . . . . . . .  21
     5.3.  "ice-lite" and "ice-mismatch" Attributes  . . . . . . . .  22
     5.4.  "ice-ufrag" and "ice-pwd" Attributes  . . . . . . . . . .  22
     5.5.  "ice-pacing" Attribute  . . . . . . . . . . . . . . . . .  23
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