QUIC: A UDP-Based Multiplexed and Secure Transport
draft-ietf-quic-transport-05
QUIC J. Iyengar, Ed.
Internet-Draft Google
Intended status: Standards Track M. Thomson, Ed.
Expires: February 16, 2018 Mozilla
August 15, 2017
QUIC: A UDP-Based Multiplexed and Secure Transport
draft-ietf-quic-transport-05
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 http://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 February 16, 2018.
Iyengar & Thomson Expires February 16, 2018 [Page 1]
Internet-Draft QUIC Transport Protocol August 2017
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Conventions and Definitions . . . . . . . . . . . . . . . . . 5
2.1. Notational Conventions . . . . . . . . . . . . . . . . . 5
3. A QUIC Overview . . . . . . . . . . . . . . . . . . . . . . . 6
3.1. Low-Latency Connection Establishment . . . . . . . . . . 6
3.2. Stream Multiplexing . . . . . . . . . . . . . . . . . . . 6
3.3. Rich Signaling for Congestion Control and Loss Recovery . 7
3.4. Stream and Connection Flow Control . . . . . . . . . . . 7
3.5. Authenticated and Encrypted Header and Payload . . . . . 7
3.6. Connection Migration and Resilience to NAT Rebinding . . 8
3.7. Version Negotiation . . . . . . . . . . . . . . . . . . . 8
4. Versions . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5. Packet Types and Formats . . . . . . . . . . . . . . . . . . 9
5.1. Long Header . . . . . . . . . . . . . . . . . . . . . . . 9
5.2. Short Header . . . . . . . . . . . . . . . . . . . . . . 11
5.3. Version Negotiation Packet . . . . . . . . . . . . . . . 13
5.4. Cleartext Packets . . . . . . . . . . . . . . . . . . . . 14
5.4.1. Client Initial Packet . . . . . . . . . . . . . . . . 14
5.4.2. Server Stateless Retry Packet . . . . . . . . . . . . 15
5.4.3. Server Cleartext Packet . . . . . . . . . . . . . . . 16
5.4.4. Client Cleartext Packet . . . . . . . . . . . . . . . 16
5.5. Protected Packets . . . . . . . . . . . . . . . . . . . . 16
5.6. Connection ID . . . . . . . . . . . . . . . . . . . . . . 17
5.7. Packet Numbers . . . . . . . . . . . . . . . . . . . . . 17
5.7.1. Initial Packet Number . . . . . . . . . . . . . . . . 19
5.8. Handling Packets from Different Versions . . . . . . . . 19
6. Frames and Frame Types . . . . . . . . . . . . . . . . . . . 19
7. Life of a Connection . . . . . . . . . . . . . . . . . . . . 21
7.1. Version Negotiation . . . . . . . . . . . . . . . . . . . 22
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