Protocol for Controlling Multiple Streams for Telepresence (CLUE)
draft-ietf-clue-protocol-15

Document Type Active Internet-Draft (clue WG)
Last updated 2018-04-11
Replaces draft-presta-clue-protocol
Stream IETF
Intended RFC status Proposed Standard
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CLUE Working Group                                             R. Presta
Internet-Draft                                              S. P. Romano
Intended status: Standards Track                    University of Napoli
Expires: October 13, 2018                                 April 11, 2018

   Protocol for Controlling Multiple Streams for Telepresence (CLUE)
                      draft-ietf-clue-protocol-15

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 October 13, 2018.

Copyright Notice

   Copyright (c) 2018 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
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents

Presta & P. Romano      Expires October 13, 2018                [Page 1]
Internet-Draft         draft-ietf-clue-protocol-15            April 2018

   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 . . . . . . . . . . . . . . . . . . . . . .   6
     5.1.  options . . . . . . . . . . . . . . . . . . . . . . . . .   9
     5.2.  optionsResponse . . . . . . . . . . . . . . . . . . . . .  11
     5.3.  advertisement . . . . . . . . . . . . . . . . . . . . . .  12
     5.4.  ack . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
     5.5.  configure . . . . . . . . . . . . . . . . . . . . . . . .  14
     5.6.  configureResponse . . . . . . . . . . . . . . . . . . . .  15
     5.7.  Response codes and reason strings . . . . . . . . . . . .  16
   6.  Protocol state machines . . . . . . . . . . . . . . . . . . .  18
     6.1.  Media Provider's state machine  . . . . . . . . . . . . .  21
     6.2.  Media Consumer's state machine  . . . . . . . . . . . . .  22
   7.  Versioning  . . . . . . . . . . . . . . . . . . . . . . . . .  24
   8.  Extensions  . . . . . . . . . . . . . . . . . . . . . . . . .  25
     8.1.  Extension example . . . . . . . . . . . . . . . . . . . .  27
   9.  XML Schema  . . . . . . . . . . . . . . . . . . . . . . . . .  29
   10. Examples  . . . . . . . . . . . . . . . . . . . . . . . . . .  34
     10.1.  Simple 'advertisement' . . . . . . . . . . . . . . . . .  34
     10.2.  'advertisement' with Multiple Content Captures . . . . .  42
   11. Security Considerations . . . . . . . . . . . . . . . . . . .  52
   12. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  53
     12.1.  URN Sub-Namespace Registration . . . . . . . . . . . . .  53
     12.2.  XML Schema registration  . . . . . . . . . . . . . . . .  54
     12.3.  MIME Media Type Registration for 'application/clue+xml'   54
     12.4.  CLUE Protocol Registry . . . . . . . . . . . . . . . . .  55
       12.4.1.  CLUE Message Types . . . . . . . . . . . . . . . . .  55
       12.4.2.  CLUE Response Codes  . . . . . . . . . . . . . . . .  56
   13. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  58
   14. References  . . . . . . . . . . . . . . . . . . . . . . . . .  58
     14.1.  Normative References . . . . . . . . . . . . . . . . . .  58
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