Tunneling TCP inside QUIC
draft-piraux-quic-tunnel-tcp-00

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QUIC Working Group                                             M. Piraux
Internet-Draft                                            O. Bonaventure
Intended status: Experimental                                  UCLouvain
Expires: September 10, 2020                               March 09, 2020

                       Tunneling TCP inside QUIC
                    draft-piraux-quic-tunnel-tcp-00

Abstract

   This document specifies a new operating mode for a QUIC tunnel to
   efficiently convey TCP bytestreams.

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 10, 2020.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Conventions and Definitions . . . . . . . . . . . . . . . . .   3
   3.  The stream mode . . . . . . . . . . . . . . . . . . . . . . .   3
   4.  Connection establishment  . . . . . . . . . . . . . . . . . .   4
   5.  Messages format . . . . . . . . . . . . . . . . . . . . . . .   4
     5.1.  QUIC tunnel stream TLVs . . . . . . . . . . . . . . . . .   4
       5.1.1.  TCP Connect TLV . . . . . . . . . . . . . . . . . . .   5
       5.1.2.  TCP Connect OK TLV  . . . . . . . . . . . . . . . . .   6
       5.1.3.  Error TLV . . . . . . . . . . . . . . . . . . . . . .   6
       5.1.4.  End TLV . . . . . . . . . . . . . . . . . . . . . . .   7
   6.  Example flows . . . . . . . . . . . . . . . . . . . . . . . .   8
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .   8
     7.1.  Denial of Service . . . . . . . . . . . . . . . . . . . .   9
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   9
     8.1.  Registration of QUIC tunnel Identification String . . . .   9
     8.2.  QUIC tunnel stream TLVs . . . . . . . . . . . . . . . . .   9
       8.2.1.  QUIC tunnel stream TLVs Types . . . . . . . . . . . .   9
       8.2.2.  QUIC tunnel streams TLVs Error Types  . . . . . . . .  10
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  10
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  10
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  11
   Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . .  11
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  11

1.  Introduction

   The recently proposed QUIC tunnel protocol [I-D.piraux-quic-tunnel]
   supports the exchange of IP packets or Ethernet frames over a QUIC
   connection.  Its first operating mode, the datagram mode, transports
   plain packets inside QUIC frames.  Its main advantage is that it
   supports any network-layer protocol.  However, this advantage comes
   with a large per-packet overhead since each packet contains both a
   network and a transport header.  All these headers must be
   transmitted in addition to the IP/UDP/QUIC headers of the QUIC
   connection.  For TCP connections for instance, the per-packet
   overhead can be large.

   In this document, we propose a new operating mode for the QUIC tunnel
   protocol, called the stream mode.  It takes advantage of the QUIC
   streams to efficiently transport TCP bytestreams over a QUIC
   connection.  Section 3 describes this new mode.  Section 5 specifies
   the format of the messages introduced by this document.  Section 6
   contains example flows.

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2.  Conventions and Definitions