I-D Action: draft-duke-httpbis-quic-version-alt-svc-01.txt

internet-drafts@ietf.org Wed, 27 April 2022 20:25 UTC

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Subject: I-D Action: draft-duke-httpbis-quic-version-alt-svc-01.txt
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Date: Wed, 27 Apr 2022 13:25:20 -0700
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A New Internet-Draft is available from the on-line Internet-Drafts directories.


        Title           : An Alt-Svc Parameter and SvcParamKey for QUIC Versions
        Authors         : Martin Duke
                          Lucas Pardue
	Filename        : draft-duke-httpbis-quic-version-alt-svc-01.txt
	Pages           : 7
	Date            : 2022-04-27

Abstract:
   HTTP Alternative Services (Alt-Svc) describes how one origin's
   resource can be accessed via a different protocol/host/port
   combination.  Alternatives are advertised by servers using the Alt-
   Svc header field or the ALTSVC frame.  This includes a protocol name,
   which reuses Application Layer Protocol Negotiation (ALPN)
   codepoints.  The "h3" codepoint indicates the availability of HTTP/3.
   A client that uses such an alternative first makes a QUIC connection.
   However, without a priori knowledge of which QUIC version to use,
   clients might incur a round-trip latency penalty to complete QUIC
   version negotiation, or forfeit desirable properties of a QUIC
   version.  This document specifies a new Alt-Svc parameter that
   specifies alternative supported QUIC versions, which substantially
   reduces the chance of this penalty.

   Similarly, clients can retrieve additional instructions about access
   to services or resources via DNS SVCB and HTTP Resource Records.
   This document also defines a new SvcParamKey for these Resource
   Records, which specifies the specific QUIC versions in use.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-duke-httpbis-quic-version-alt-svc/

There is also an HTML version available at:
https://www.ietf.org/archive/id/draft-duke-httpbis-quic-version-alt-svc-01.html

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-duke-httpbis-quic-version-alt-svc-01


Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts

I-D Action: draft-duke-httpbis-quic-version-alt-s… internet-drafts