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+Internet Engineering Task Force (IETF)                   J. Iyengar, Ed.
+Request for Comments: 9000                                        Fastly
+Category: Standards Track                                M. Thomson, Ed.
+ISSN: 2070-1721                                                  Mozilla
+                                                                May 2021
+
+
+           QUIC: A UDP-Based Multiplexed and Secure Transport
+
+Abstract
+
+   This document defines the core of the QUIC transport protocol.  QUIC
+   provides applications with flow-controlled streams for structured
+   communication, low-latency connection establishment, and network path
+   migration.  QUIC includes security measures that ensure
+   confidentiality, integrity, and availability in a range of deployment
+   circumstances.  Accompanying documents describe the integration of
+   TLS for key negotiation, loss detection, and an exemplary congestion
+   control algorithm.
+
+Status of This Memo
+
+   This is an Internet Standards Track document.
+   Information about the current status of this document, any errata,
+   and how to provide feedback on it may be obtained at
+   https://www.rfc-editor.org/info/rfc9000.
+
+Copyright Notice
+
+   Copyright (c) 2021 IETF Trust and the persons identified as the
+   document authors.  All rights reserved.
+
+Table of Contents
+
+   1.  Overview
+     1.1.  Document Structure
+     1.2.  Terms and Definitions
+     1.3.  Notational Conventions
+   2.  Streams
+     2.1.  Stream Types and Identifiers
+     2.2.  Sending and Receiving Data
+     2.3.  Stream Prioritization
+     2.4.  Operations on Streams
+   3.  Stream States
+     3.1.  Sending Stream States
+     3.2.  Receiving Stream States
+     3.3.  Permitted Frame Types
+     3.4.  Bidirectional Stream States
+     3.5.  Solicited State Transitions
+   4.  Flow Control
+     4.1.  Data Flow Control
+     4.2.  Increasing Flow Control Limits
+     4.3.  Flow Control Performance
+     4.4.  Handling Stream Cancellation
+     4.5.  Stream Final Size
+     4.6.  Controlling Concurrency
+   5.  Connections
+     5.1.  Connection ID
+     5.2.  Matching Packets to Connections
+     5.3.  Operations on Connections
+   6.  Version Negotiation
+   7.  Cryptographic and Transport Handshake
+     7.1.  Example Handshake Flows
+     7.2.  Negotiating Connection IDs
+     7.3.  Authenticating Connection IDs
+     7.4.  Transport Parameters
+     7.5.  Cryptographic Message Buffering
+   8.  Address Validation
+   9.  Connection Migration
+   10. Connection Termination
+   11. Error Handling
+   12. Packets and Frames
+   13. Packetization and Reliability
+   14. Datagram Size
+   15. Versions
+   16. Variable-Length Integer Encoding
+   17. Packet Formats
+   18. Transport Parameter Encoding
+   19. Frame Types and Formats
+   20. Error Codes
+   21. Security Considerations
+   22. IANA Considerations
+   23. References
+
+[NOTE: This file contains the header, abstract, and table of contents
+ of RFC 9000. The full specification text is available at:
+   https://www.rfc-editor.org/rfc/rfc9000
+   https://www.rfc-editor.org/rfc/rfc9000.txt  (text)
+   https://www.rfc-editor.org/rfc/rfc9000.pdf  (PDF)
+
+ Full document: 151 pages, May 2021
+ Authors: Jana Iyengar (Fastly), Martin Thomson (Mozilla)
+ DOI: 10.17487/RFC9000]