Multiplexing Scheme Updates for QUIC
draft-aboba-avtcore-rfc7983bis-00

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AVTCORE Working Group                                           B. Aboba
INTERNET-DRAFT                                     Microsoft Corporation
Updates: 7983, 5764                                         G. Salgueiro
Category: Standards Track                                  Cisco Systems
Expires: September 5, 2020                                    C. Perkins
                                                   University of Glasgow
                                                            5 March 2020

                  Multiplexing Scheme Updates for QUIC
                 draft-aboba-avtcore-rfc7983bis-00.txt

Abstract

   This document defines how QUIC, Datagram Transport Layer Security
   (DTLS), Real-time Transport Protocol (RTP), RTP Control Protocol
   (RTCP), Session Traversal Utilities for NAT (STUN), Traversal Using
   Relays around NAT (TURN), and ZRTP packets are multiplexed on a
   single receiving socket.

   This document updates RFC 7983 and RFC 5764.

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
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   This Internet-Draft will expire on September 5, 2020.

Aboba, et. al                Standards Track                    [Page 1]
INTERNET-DRAFT    Multiplexing Scheme Updates for QUIC      5 March 2020

Copyright Notice

   Copyright (c) 2020 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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   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Multiplexing of TURN Channels . . . . . . . . . . . . . . . .   3
   3.  Updates to RFC 7983 . . . . . . . . . . . . . . . . . . . . .   4
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .   5
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   6
   6. References . . . . . . . . . . . . . . . . . . . . . . . . . .   6
     6.1.  Normative References  . . . . . . . . . . . . . . . . . .   6
     6.2.  Informative References  . . . . . . . . . . . . . . . . .   7
   Acknowledgements  . . . . . . . . . . . . . . . . . . . . . . . .   7
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   8

Aboba, et. al                Standards Track                    [Page 2]
INTERNET-DRAFT    Multiplexing Scheme Updates for QUIC      5 March 2020

1.  Introduction

   "Multiplexing Scheme Updates for Secure Real-time Transport Protocol
   (SRTP) Extension for Datagram Transport Layer Security (DTLS)"
   [RFC7983] defines a scheme for a Real-time Transport Protocol (RTP)
   [RFC3550] receiver to demultiplex DTLS [RFC6347], Session Traversal
   Utilities for NAT (STUN) [RFC5389], Secure Real-time Transport
   Protocol (SRTP) / Secure Real-time Transport Control Protocol (SRTCP)
   [RFC3711], ZRTP [RFC6189] and TURN Channel packets arriving on a
   single port.

   This document updates [RFC7983] and [RFC5764] to also allow QUIC [I-
   D.ietf-quic-transport] to be multiplexed on the same port.  For peer-
   to-peer operation in WebRTC scenarios as described in [WEBRTC-
   QUIC][WEBRTC-QUIC-TRIAL], RTP is used to transport audio and video
   and QUIC is used for data exchange, SRTP [RFC3711] is keyed using
   DTLS-SRTP [RFC5764] and therefore SRTP/SRTCP [RFC3550], STUN, TURN,
   DTLS [RFC6347] and QUIC need to be multiplexed on the same port.

   Since new versions of QUIC are allowed to change aspects of the wire
   image, there is no guarantee that future versions of QUIC beyond
   version 1 will adhere to the multiplexing scheme described in this
   document.

1.1.  Terminology

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
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