CLUE protocol
draft-ietf-clue-protocol-13

Document Type Active Internet-Draft (clue WG)
Last updated 2017-06-01 (latest revision 2017-02-23)
Replaces draft-presta-clue-protocol
Stream IETF
Intended RFC status Proposed Standard
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CLUE Working Group                                             R. Presta
Internet-Draft                                                 S. Romano
Intended status: Standards Track                    University of Napoli
Expires: August 27, 2017                               February 23, 2017

                             CLUE protocol
                      draft-ietf-clue-protocol-13

Abstract

   The CLUE protocol is an application protocol conceived for the
   description and negotiation of a telepresence session.  The design of
   the CLUE protocol takes into account the requirements and the
   framework defined within the IETF CLUE working group.  A companion
   document delves into CLUE signaling details, as well as on the SIP/
   SDP session establishment phase.  CLUE messages flow over the CLUE
   data channel, based on reliable and ordered SCTP over DTLS transport.
   Message details, together with the behavior of CLUE Participants
   acting as Media Providers and/or Media Consumers, are herein
   discussed.

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 August 27, 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
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents

Presta & Romano          Expires August 27, 2017                [Page 1]
Internet-Draft         draft-ietf-clue-protocol-13         February 2017

   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Conventions . . . . . . . . . . . . . . . . . . . . . . . . .   4
   4.  Overview of the CLUE protocol . . . . . . . . . . . . . . . .   4
   5.  Protocol messages . . . . . . . . . . . . . . . . . . . . . .   7
     5.1.  OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . .   9
     5.2.  OPTIONS RESPONSE  . . . . . . . . . . . . . . . . . . . .  11
     5.3.  ADVERTISEMENT . . . . . . . . . . . . . . . . . . . . . .  12
     5.4.  ADVERTISEMENT ACKNOWLEDGEMENT . . . . . . . . . . . . . .  13
     5.5.  CONFIGURE . . . . . . . . . . . . . . . . . . . . . . . .  13
     5.6.  CONFIGURE RESPONSE  . . . . . . . . . . . . . . . . . . .  14
     5.7.  Response codes and reason strings . . . . . . . . . . . .  15
   6.  Protocol state machines . . . . . . . . . . . . . . . . . . .  17
     6.1.  Media Provider's state machine  . . . . . . . . . . . . .  19
     6.2.  Media Consumer's state machine  . . . . . . . . . . . . .  23
   7.  Versioning  . . . . . . . . . . . . . . . . . . . . . . . . .  26
   8.  Extensions  . . . . . . . . . . . . . . . . . . . . . . . . .  26
     8.1.  Extension example . . . . . . . . . . . . . . . . . . . .  28
   9.  XML Schema  . . . . . . . . . . . . . . . . . . . . . . . . .  30
   10. Examples  . . . . . . . . . . . . . . . . . . . . . . . . . .  34
     10.1.  Simple ADV . . . . . . . . . . . . . . . . . . . . . . .  35
     10.2.  ADV with MCCs  . . . . . . . . . . . . . . . . . . . . .  42
   11. Security Considerations . . . . . . . . . . . . . . . . . . .  52
   12. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  54
     12.1.  URN Sub-Namespace Registration . . . . . . . . . . . . .  54
     12.2.  XML Schema registration  . . . . . . . . . . . . . . . .  54
     12.3.  MIME Media Type Registration for 'application/clue+xml'   55
     12.4.  CLUE Protocol Registry . . . . . . . . . . . . . . . . .  56
       12.4.1.  CLUE Message Types . . . . . . . . . . . . . . . . .  56
       12.4.2.  CLUE Response Codes  . . . . . . . . . . . . . . . .  57
   13. Diff with draft-ietf-clue-protocol-12 . . . . . . . . . . . .  59
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