Manageability of the QUIC Transport Protocol
draft-ietf-quic-manageability-01

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Last updated 2017-10-25
Replaces draft-kuehlewind-quic-manageability
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Network Working Group                                      M. Kuehlewind
Internet-Draft                                               B. Trammell
Intended status: Informational                                ETH Zurich
Expires: April 28, 2018                                 October 25, 2017

              Manageability of the QUIC Transport Protocol
                    draft-ietf-quic-manageability-01

Abstract

   This document discusses manageability of the QUIC transport protocol,
   focusing on caveats impacting network operations involving QUIC
   traffic.  Its intended audience is network operators, as well as
   content providers that rely on the use of QUIC-aware middleboxes,
   e.g. for load balancing.

Status of This Memo

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   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on April 28, 2018.

Copyright Notice

   Copyright (c) 2017 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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Kuehlewind & Trammell    Expires April 28, 2018                 [Page 1]
Internet-Draft             QUIC Manageability               October 2017

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Notational Conventions  . . . . . . . . . . . . . . . . .   3
   2.  Features of the QUIC Wire Image . . . . . . . . . . . . . . .   3
     2.1.  QUIC Packet Header Structure  . . . . . . . . . . . . . .   4
     2.2.  Integrity Protection of the Wire Image  . . . . . . . . .   5
     2.3.  Connection ID and Rebinding . . . . . . . . . . . . . . .   5
     2.4.  Packet Numbers  . . . . . . . . . . . . . . . . . . . . .   6
     2.5.  Initial Handshake and PMTUD . . . . . . . . . . . . . . .   6
     2.6.  Version Negotiation and Greasing  . . . . . . . . . . . .   6
   3.  Network-visible information about QUIC flows  . . . . . . . .   6
     3.1.  Identifying QUIC traffic  . . . . . . . . . . . . . . . .   7
       3.1.1.  Identifying Negotiated Version  . . . . . . . . . . .   7
       3.1.2.  Rejection of Garbage Traffic  . . . . . . . . . . . .   7
     3.2.  Connection confirmation . . . . . . . . . . . . . . . . .   7
     3.3.  Flow association  . . . . . . . . . . . . . . . . . . . .   8
     3.4.  Flow teardown . . . . . . . . . . . . . . . . . . . . . .   8
     3.5.  Round-trip time measurement . . . . . . . . . . . . . . .   8
     3.6.  Packet loss measurement . . . . . . . . . . . . . . . . .   9
     3.7.  Flow symmetry measurement . . . . . . . . . . . . . . . .   9
   4.  Specific Network Management Tasks . . . . . . . . . . . . . .   9
     4.1.  Stateful treatment of QUIC traffic  . . . . . . . . . . .   9
     4.2.  Passive network performance measurement and
           troubleshooting . . . . . . . . . . . . . . . . . . . . .   9
     4.3.  Server cooperation with load balancers  . . . . . . . . .  10
     4.4.  DDoS Detection and Mitigation . . . . . . . . . . . . . .  10
     4.5.  QoS support and ECMP  . . . . . . . . . . . . . . . . . .  11
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  11
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  11
   7.  Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  12
   8.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  12
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  12
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  12
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  12
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  13

1.  Introduction

   QUIC [QUIC] is a new transport protocol currently under development
   in the IETF quic working group, focusing on support of semantics as
   needed for HTTP/2 [QUIC-HTTP].  Based on current deployment
   practices, QUIC is encapsulated in UDP and encrypted by default.  The
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