Manageability of the QUIC Transport Protocol
draft-ietf-quic-manageability-02
Network Working Group M. Kuehlewind
Internet-Draft B. Trammell
Intended status: Informational ETH Zurich
Expires: January 3, 2019 July 02, 2018
Manageability of the QUIC Transport Protocol
draft-ietf-quic-manageability-02
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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This Internet-Draft will expire on January 3, 2019.
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Kuehlewind & Trammell Expires January 3, 2019 [Page 1]
Internet-Draft QUIC Manageability July 2018
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. Coalesced Packets . . . . . . . . . . . . . . . . . . . . 5
2.3. Integrity Protection of the Wire Image . . . . . . . . . 5
2.4. Connection ID and Rebinding . . . . . . . . . . . . . . . 5
2.5. Packet Numbers . . . . . . . . . . . . . . . . . . . . . 6
2.6. Version Negotiation and Greasing . . . . . . . . . . . . 6
3. Network-visible information about QUIC flows . . . . . . . . 6
3.1. Identifying QUIC traffic . . . . . . . . . . . . . . . . 6
3.1.1. Identifying Negotiated Version . . . . . . . . . . . 7
3.1.2. Rejection of Garbage Traffic . . . . . . . . . . . . 7
3.2. Connection confirmation . . . . . . . . . . . . . . . . . 7
3.3. Application Identification . . . . . . . . . . . . . . . 7
3.4. Flow association . . . . . . . . . . . . . . . . . . . . 8
3.5. Flow teardown . . . . . . . . . . . . . . . . . . . . . . 8
3.6. Round-trip time measurement . . . . . . . . . . . . . . . 8
3.7. Flow symmetry measurement . . . . . . . . . . . . . . . . 10
4. Specific Network Management Tasks . . . . . . . . . . . . . . 10
4.1. Stateful treatment of QUIC traffic . . . . . . . . . . . 10
4.2. Passive network performance measurement and
troubleshooting . . . . . . . . . . . . . . . . . . . . . 10
4.3. Server cooperation with load balancers . . . . . . . . . 10
4.4. DDoS Detection and Mitigation . . . . . . . . . . . . . . 11
4.5. QoS support and ECMP . . . . . . . . . . . . . . . . . . 11
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 12
6. Security Considerations . . . . . . . . . . . . . . . . . . . 12
7. Contributors . . . . . . . . . . . . . . . . . . . . . . . . 12
8. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 13
9. References . . . . . . . . . . . . . . . . . . . . . . . . . 13
9.1. Normative References . . . . . . . . . . . . . . . . . . 13
9.2. Informative References . . . . . . . . . . . . . . . . . 13
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 15
1. Introduction
QUIC [QUIC-TRANSPORT] 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
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