QUIC: A UDP-Based Multiplexed and Secure Transport
draft-ietf-quic-transport-16
QUIC J. Iyengar, Ed.
Internet-Draft Fastly
Intended status: Standards Track M. Thomson, Ed.
Expires: April 26, 2019 Mozilla
October 23, 2018
QUIC: A UDP-Based Multiplexed and Secure Transport
draft-ietf-quic-transport-16
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 April 26, 2019.
Iyengar & Thomson Expires April 26, 2019 [Page 1]
Internet-Draft QUIC Transport Protocol October 2018
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1. Document Structure . . . . . . . . . . . . . . . . . . . 6
1.2. Conventions and Definitions . . . . . . . . . . . . . . . 7
1.3. Notational Conventions . . . . . . . . . . . . . . . . . 8
2. Streams . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1. Stream Identifiers . . . . . . . . . . . . . . . . . . . 9
2.2. Stream Concurrency . . . . . . . . . . . . . . . . . . . 10
2.3. Sending and Receiving Data . . . . . . . . . . . . . . . 11
2.4. Stream Prioritization . . . . . . . . . . . . . . . . . . 11
3. Stream States: Life of a Stream . . . . . . . . . . . . . . . 12
3.1. Send Stream States . . . . . . . . . . . . . . . . . . . 13
3.2. Receive Stream States . . . . . . . . . . . . . . . . . . 15
3.3. Permitted Frame Types . . . . . . . . . . . . . . . . . . 18
3.4. Bidirectional Stream States . . . . . . . . . . . . . . . 18
3.5. Solicited State Transitions . . . . . . . . . . . . . . . 19
4. Flow Control . . . . . . . . . . . . . . . . . . . . . . . . 20
4.1. Handling of Stream Cancellation . . . . . . . . . . . . . 21
4.2. Data Limit Increments . . . . . . . . . . . . . . . . . . 22
4.3. Stream Final Offset . . . . . . . . . . . . . . . . . . . 23
4.4. Flow Control for Cryptographic Handshake . . . . . . . . 24
4.5. Stream Limit Increment . . . . . . . . . . . . . . . . . 24
5. Connections . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.1. Connection ID . . . . . . . . . . . . . . . . . . . . . . 24
5.1.1. Issuing Connection IDs . . . . . . . . . . . . . . . 25
5.1.2. Consuming and Retiring Connection IDs . . . . . . . . 26
5.2. Matching Packets to Connections . . . . . . . . . . . . . 27
5.2.1. Client Packet Handling . . . . . . . . . . . . . . . 27
5.2.2. Server Packet Handling . . . . . . . . . . . . . . . 27
5.3. Life of a QUIC Connection . . . . . . . . . . . . . . . . 28
6. Version Negotiation . . . . . . . . . . . . . . . . . . . . . 28
6.1. Sending Version Negotiation Packets . . . . . . . . . . . 29
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