QUIC: A UDP-Based Multiplexed and Secure Transport
draft-ietf-quic-transport-17
QUIC J. Iyengar, Ed.
Internet-Draft Fastly
Intended status: Standards Track M. Thomson, Ed.
Expires: June 21, 2019 Mozilla
December 18, 2018
QUIC: A UDP-Based Multiplexed and Secure Transport
draft-ietf-quic-transport-17
Abstract
This document defines the core of the QUIC transport protocol.
Accompanying documents describe QUIC's loss detection and congestion
control [QUIC-RECOVERY] and the use of TLS for key negotiation
[QUIC-TLS].
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 June 21, 2019.
Iyengar & Thomson Expires June 21, 2019 [Page 1]
Internet-Draft QUIC Transport Protocol December 2018
Copyright Notice
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1. Document Structure . . . . . . . . . . . . . . . . . . . 6
1.2. Terms and Definitions . . . . . . . . . . . . . . . . . . 7
1.3. Notational Conventions . . . . . . . . . . . . . . . . . 8
2. Streams . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1. Stream Types and Identifiers . . . . . . . . . . . . . . 9
2.2. Sending and Receiving Data . . . . . . . . . . . . . . . 10
2.3. Stream Prioritization . . . . . . . . . . . . . . . . . . 10
3. Stream States . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1. Send Stream States . . . . . . . . . . . . . . . . . . . 11
3.2. Receive Stream States . . . . . . . . . . . . . . . . . . 13
3.3. Permitted Frame Types . . . . . . . . . . . . . . . . . . 16
3.4. Bidirectional Stream States . . . . . . . . . . . . . . . 16
3.5. Solicited State Transitions . . . . . . . . . . . . . . . 17
4. Flow Control . . . . . . . . . . . . . . . . . . . . . . . . 18
4.1. Data Flow Control . . . . . . . . . . . . . . . . . . . . 19
4.2. Flow Credit Increments . . . . . . . . . . . . . . . . . 20
4.3. Handling Stream Cancellation . . . . . . . . . . . . . . 21
4.4. Stream Final Offset . . . . . . . . . . . . . . . . . . . 21
4.5. Controlling Concurrency . . . . . . . . . . . . . . . . . 22
5. Connections . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.1. Connection ID . . . . . . . . . . . . . . . . . . . . . . 23
5.1.1. Issuing Connection IDs . . . . . . . . . . . . . . . 24
5.1.2. Consuming and Retiring Connection IDs . . . . . . . . 25
5.2. Matching Packets to Connections . . . . . . . . . . . . . 25
5.2.1. Client Packet Handling . . . . . . . . . . . . . . . 26
5.2.2. Server Packet Handling . . . . . . . . . . . . . . . 26
5.3. Life of a QUIC Connection . . . . . . . . . . . . . . . . 27
6. Version Negotiation . . . . . . . . . . . . . . . . . . . . . 27
6.1. Sending Version Negotiation Packets . . . . . . . . . . . 28
6.2. Handling Version Negotiation Packets . . . . . . . . . . 28
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