Manageability of the QUIC Transport Protocol
draft-ietf-quic-manageability-05
Network Working Group M. Kuehlewind
Internet-Draft Ericsson
Intended status: Informational B. Trammell
Expires: January 6, 2020 Google
July 05, 2019
Manageability of the QUIC Transport Protocol
draft-ietf-quic-manageability-05
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
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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and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on January 6, 2020.
Copyright Notice
Copyright (c) 2019 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
Provisions Relating to IETF Documents
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include Simplified BSD License text as described in Section 4.e of
Kuehlewind & Trammell Expires January 6, 2020 [Page 1]
Internet-Draft QUIC Manageability July 2019
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described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Notational Conventions . . . . . . . . . . . . . . . . . 4
2. Features of the QUIC Wire Image . . . . . . . . . . . . . . . 4
2.1. QUIC Packet Header Structure . . . . . . . . . . . . . . 4
2.2. Coalesced Packets . . . . . . . . . . . . . . . . . . . . 6
2.3. Use of Port Numbers . . . . . . . . . . . . . . . . . . . 6
2.4. The QUIC handshake . . . . . . . . . . . . . . . . . . . 6
2.5. Integrity Protection of the Wire Image . . . . . . . . . 11
2.6. Connection ID and Rebinding . . . . . . . . . . . . . . . 11
2.7. Packet Numbers . . . . . . . . . . . . . . . . . . . . . 11
2.8. Version Negotiation and Greasing . . . . . . . . . . . . 11
3. Network-visible information about QUIC flows . . . . . . . . 12
3.1. Identifying QUIC traffic . . . . . . . . . . . . . . . . 12
3.1.1. Identifying Negotiated Version . . . . . . . . . . . 12
3.1.2. Rejection of Garbage Traffic . . . . . . . . . . . . 13
3.2. Connection confirmation . . . . . . . . . . . . . . . . . 13
3.3. Application Identification . . . . . . . . . . . . . . . 13
3.4. Flow association . . . . . . . . . . . . . . . . . . . . 14
3.5. Flow teardown . . . . . . . . . . . . . . . . . . . . . . 14
3.6. Flow symmetry measurement . . . . . . . . . . . . . . . . 14
3.7. Round-Trip Time (RTT) Measurement . . . . . . . . . . . . 14
3.7.1. Measuring initial RTT . . . . . . . . . . . . . . . . 15
3.7.2. Using the Spin Bit for Passive RTT Measurement . . . 15
4. Specific Network Management Tasks . . . . . . . . . . . . . . 16
4.1. Stateful treatment of QUIC traffic . . . . . . . . . . . 17
4.2. Passive network performance measurement and
troubleshooting . . . . . . . . . . . . . . . . . . . . . 17
4.3. Server cooperation with load balancers . . . . . . . . . 17
4.4. DDoS Detection and Mitigation . . . . . . . . . . . . . . 17
4.5. Distinguishing acknowledgment traffic . . . . . . . . . . 18
4.6. QoS support and ECMP . . . . . . . . . . . . . . . . . . 18
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 19
6. Security Considerations . . . . . . . . . . . . . . . . . . . 19
7. Contributors . . . . . . . . . . . . . . . . . . . . . . . . 19
8. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 19
9. References . . . . . . . . . . . . . . . . . . . . . . . . . 19
9.1. Normative References . . . . . . . . . . . . . . . . . . 19
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