Transports for RTCWEB
draft-ietf-rtcweb-transports-04

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Document Type Active Internet-Draft (rtcweb WG)
Last updated 2014-04-25
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Stream WG state WG Document (wg milestone: Jun 2014 - Send Specification o... )
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Network Working Group                                      H. Alvestrand
Internet-Draft                                                    Google
Intended status: Standards Track                          April 25, 2014
Expires: October 27, 2014

                         Transports for RTCWEB
                    draft-ietf-rtcweb-transports-04

Abstract

   This document describes the data transport protocols used by RTCWEB,
   including the protocols used for interaction with intermediate boxes
   such as firewalls, relays and NAT boxes.

Status of this Memo

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

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on October 27, 2014.

Copyright Notice

   Copyright (c) 2014 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
   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.

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Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Requirements language  . . . . . . . . . . . . . . . . . . . .  3
   3.  Transport and Middlebox specification  . . . . . . . . . . . .  3
     3.1.  System-provided interfaces . . . . . . . . . . . . . . . .  3
     3.2.  Ability to use IPv4 and IPv6 . . . . . . . . . . . . . . .  4
     3.3.  Usage of temporary IPv6 addresses  . . . . . . . . . . . .  4
     3.4.  Middle box related functions . . . . . . . . . . . . . . .  4
     3.5.  Transport protocols implemented  . . . . . . . . . . . . .  5
   4.  Media Prioritization . . . . . . . . . . . . . . . . . . . . .  6
     4.1.  Usage of Quality of Service - DSCP and Multiplexing  . . .  6
     4.2.  Local prioritization . . . . . . . . . . . . . . . . . . .  7
   5.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . .  8
   6.  Security Considerations  . . . . . . . . . . . . . . . . . . .  8
   7.  Acknowledgements . . . . . . . . . . . . . . . . . . . . . . .  8
   8.  References . . . . . . . . . . . . . . . . . . . . . . . . . .  9
     8.1.  Normative References . . . . . . . . . . . . . . . . . . .  9
     8.2.  Informative References . . . . . . . . . . . . . . . . . . 11
   Appendix A.  Change log  . . . . . . . . . . . . . . . . . . . . . 11
     A.1.  Changes from -00 to -01  . . . . . . . . . . . . . . . . . 11
     A.2.  Changes from -01 to -02  . . . . . . . . . . . . . . . . . 12
     A.3.  Changes from -02 to -03  . . . . . . . . . . . . . . . . . 12
     A.4.  Changes from -03 to -04  . . . . . . . . . . . . . . . . . 13
   Author's Address . . . . . . . . . . . . . . . . . . . . . . . . . 13

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1.  Introduction

   The IETF RTCWEB effort, part of the WebRTC effort carried out in
   cooperation between the IETF and the W3C, is aimed at specifying a
   protocol suite that is useful for real time multimedia exchange
   between browsers.

   The overall effort is described in the RTCWEB overview document,
   [I-D.ietf-rtcweb-overview].  This document focuses on the data
   transport protocols that are used by conforming implementations.

   This protocol suite is designed for WebRTC, and intends to satisfy
   the security considerations described in the WebRTC security
   documents, [I-D.ietf-rtcweb-security] and
   [I-D.ietf-rtcweb-security-arch].

2.  Requirements language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

3.  Transport and Middlebox specification

3.1.  System-provided interfaces

   The protocol specifications used here assume that the following
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