Version-Independent Properties of QUIC
draft-ietf-quic-invariants-01
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QUIC M. Thomson
Internet-Draft Mozilla
Intended status: Standards Track March 20, 2018
Expires: September 21, 2018
Version-Independent Properties of QUIC
draft-ietf-quic-invariants-01
Abstract
This document defines the properties of the QUIC transport protocol
that are expected to remain unchanged over time as new versions of
the protocol are developed.
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 [1].
Working Group information can be found at https://github.com/quicwg
[2]; source code and issues list for this draft can be found at
https://github.com/quicwg/base-drafts/labels/-invariants [3].
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 September 21, 2018.
Copyright Notice
Copyright (c) 2018 IETF Trust and the persons identified as the
document authors. All rights reserved.
Thomson Expires September 21, 2018 [Page 1]
Internet-Draft QUIC Invariants March 2018
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Conventions and Definitions . . . . . . . . . . . . . . . . . 3
3. An Extremely Abstract Description of QUIC . . . . . . . . . . 3
4. QUIC Packet Headers . . . . . . . . . . . . . . . . . . . . . 3
4.1. Long Header . . . . . . . . . . . . . . . . . . . . . . . 3
4.2. Short Header . . . . . . . . . . . . . . . . . . . . . . 4
4.3. Connection ID . . . . . . . . . . . . . . . . . . . . . . 5
4.4. Version . . . . . . . . . . . . . . . . . . . . . . . . . 5
5. Version Negotiation . . . . . . . . . . . . . . . . . . . . . 6
6. Security and Privacy Considerations . . . . . . . . . . . . . 7
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 7
8. References . . . . . . . . . . . . . . . . . . . . . . . . . 8
8.1. Normative References . . . . . . . . . . . . . . . . . . 8
8.2. Informative References . . . . . . . . . . . . . . . . . 8
8.3. URIs . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Appendix A. Incorrect Assumptions . . . . . . . . . . . . . . . 8
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 9
1. Introduction
In addition to providing secure, multiplexed transport, QUIC
[QUIC-TRANSPORT] includes the ability to negotiate a version. This
allows the protocol to change over time in response to new
requirements. Many characteristics of the protocol will change
between versions.
This document describes the subset of QUIC that is intended to remain
stable as new versions are developed and deployed. All of these
invariants are IP-version-independent.
The primary goal of this document is to ensure that it is possible
deploy new versions of QUIC. By documenting the things that can't
change, this document aims to preserve the ability to change any
other aspect of the protocol. Thus, unless specifically described in
this document, any aspect of the protocol can change between
different versions.
Thomson Expires September 21, 2018 [Page 2]
Internet-Draft QUIC Invariants March 2018
Appendix A is a non-exhaustive list of some incorrect assumptions
that might be made based on knowledge of QUIC version 1; these do not
apply to every version of QUIC.
2. Conventions and Definitions
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