QUIC for SATCOM
draft-kuhn-quic-4-sat-03

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Internet Engineering Task Force                                  N. Kuhn
Internet-Draft                                                      CNES
Intended status: Informational                              G. Fairhurst
Expires: July 19, 2020                            University of Aberdeen
                                                               J. Border
                                             Hughes Network Systems, LLC
                                                              E. Stephan
                                                                  Orange
                                                        January 16, 2020

                            QUIC for SATCOM
                        draft-kuhn-quic-4-sat-03

Abstract

   QUIC has been designed for use across Internet paths.  Initial
   designs of QUIC have focussed on common deployment scenarios for web
   traffic and have not focussed on the performance when using a path
   with a large Bandwidth-Delay Product (BDP).  A path can combine
   satellites network segment together with a wide variety of other
   network technologies (Ethernet, cable modems, WiFi, cellular, radio
   links, etc): this complicates the characteristics of the end-to-end
   path.  One example of such a scenario occurs when a satellite
   communication (SATCOM) system is used to provide all or a part of the
   end-to-end path.  If this is not addressed, the end-to-end quality of
   experience can be degraded.

   This memo identifies the characteristics of a SATCOM link that impact
   the operation of the QUIC transport protocol.  It proposes regression
   tests to evaluate QUIC over SATCOM links.  It discusses how to ensure
   acceptable protocol performance.

Status of This Memo

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   provisions of BCP 78 and BCP 79.

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Kuhn, et al.              Expires July 19, 2020                 [Page 1]
Internet-Draft                 QUIC 4 SAT                   January 2020

   This Internet-Draft will expire on July 19, 2020.

Copyright Notice

   Copyright (c) 2020 IETF Trust and the persons identified as the
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Operating over a path with a large BDP  . . . . . . . . . . .   3
   3.  TCP Split Solution  . . . . . . . . . . . . . . . . . . . . .   5
   4.  Regression tests  . . . . . . . . . . . . . . . . . . . . . .   5
     4.1.  Small public satellite broadband access . . . . . . . . .   6
     4.2.  Medium public satellite broadband access  . . . . . . . .   6
     4.3.  Loss-free large public satellite broadband access . . . .   6
     4.4.  Lossy large public satellite broadband access . . . . . .   7
   5.  Mechanisms that improve the performance of QUIC for SATCOM  .   7
     5.1.  Getting up to speed . . . . . . . . . . . . . . . . . . .   7
     5.2.  Maximum window  . . . . . . . . . . . . . . . . . . . . .   8
     5.3.  Reliability . . . . . . . . . . . . . . . . . . . . . . .   8
     5.4.  ACK ratio . . . . . . . . . . . . . . . . . . . . . . . .   8
   6.  Discussion  . . . . . . . . . . . . . . . . . . . . . . . . .   9
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   9
   8.  Contributors  . . . . . . . . . . . . . . . . . . . . . . . .   9
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  10
   10. Security Considerations . . . . . . . . . . . . . . . . . . .  10
   11. Informative References  . . . . . . . . . . . . . . . . . . .  10
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  12

1.  Introduction

   The end-to-end performance of an application using an Internet path
   can be impacted by the Bandwidth-Delay Product (BDP) of the links and
   network devices forming the path.  For instance, the page load time
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