QUIC: A UDP-Based Multiplexed and Secure Transport
draft-ietf-quic-transport-13
QUIC J. Iyengar, Ed.
Internet-Draft Fastly
Intended status: Standards Track M. Thomson, Ed.
Expires: December 30, 2018 Mozilla
June 28, 2018
QUIC: A UDP-Based Multiplexed and Secure Transport
draft-ietf-quic-transport-13
Abstract
This document defines the core of the QUIC transport protocol. This
document describes connection establishment, packet format,
multiplexing and reliability. Accompanying documents describe the
cryptographic handshake and loss detection.
Note to Readers
Discussion of this draft takes place on the QUIC working group
mailing list (quic@ietf.org), which is archived at
<https://mailarchive.ietf.org/arch/search/?email_list=quic>.
Working Group information can be found at <https://github.com/
quicwg>; source code and issues list for this draft can be found at
<https://github.com/quicwg/base-drafts/labels/-transport>.
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
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
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 December 30, 2018.
Iyengar & Thomson Expires December 30, 2018 [Page 1]
Internet-Draft QUIC Transport Protocol June 2018
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 5
2. Conventions and Definitions . . . . . . . . . . . . . . . . . 6
2.1. Notational Conventions . . . . . . . . . . . . . . . . . 7
3. Versions . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4. Packet Types and Formats . . . . . . . . . . . . . . . . . . 8
4.1. Long Header . . . . . . . . . . . . . . . . . . . . . . . 8
4.2. Short Header . . . . . . . . . . . . . . . . . . . . . . 11
4.3. Version Negotiation Packet . . . . . . . . . . . . . . . 12
4.4. Cryptographic Handshake Packets . . . . . . . . . . . . . 14
4.4.1. Initial Packet . . . . . . . . . . . . . . . . . . . 14
4.4.2. Retry Packet . . . . . . . . . . . . . . . . . . . . 17
4.4.3. Handshake Packet . . . . . . . . . . . . . . . . . . 18
4.5. Protected Packets . . . . . . . . . . . . . . . . . . . . 18
4.6. Coalescing Packets . . . . . . . . . . . . . . . . . . . 19
4.7. Connection ID Encoding . . . . . . . . . . . . . . . . . 20
4.8. Packet Numbers . . . . . . . . . . . . . . . . . . . . . 21
5. Frames and Frame Types . . . . . . . . . . . . . . . . . . . 23
5.1. Extension Frames . . . . . . . . . . . . . . . . . . . . 26
6. Life of a Connection . . . . . . . . . . . . . . . . . . . . 26
6.1. Connection ID . . . . . . . . . . . . . . . . . . . . . . 27
6.2. Matching Packets to Connections . . . . . . . . . . . . . 28
6.2.1. Client Packet Handling . . . . . . . . . . . . . . . 28
6.2.2. Server Packet Handling . . . . . . . . . . . . . . . 29
6.3. Version Negotiation . . . . . . . . . . . . . . . . . . . 29
6.3.1. Sending Version Negotiation Packets . . . . . . . . . 30
6.3.2. Handling Version Negotiation Packets . . . . . . . . 30
6.3.3. Using Reserved Versions . . . . . . . . . . . . . . . 31
6.4. Cryptographic and Transport Handshake . . . . . . . . . . 31
6.5. Example Handshake Flows . . . . . . . . . . . . . . . . . 32
6.6. Transport Parameters . . . . . . . . . . . . . . . . . . 34
6.6.1. Transport Parameter Definitions . . . . . . . . . . . 36
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