Re: [Webtransport] Confirming Consensus on WebTransport protocols

[David Schinazi <[e-mail]>]

Hi WebTransport enthusiasts,

This consensus is now confirmed: for the foreseeable future,
the WEBTRANS working group will focus on building a single
UDP-based protocol for WebTransport, and that protocol will
run atop HTTP/3.

Our next step is to adopt a document that matches this
description. The only matching proposal that has been
discussed on this list so far is Victor's
"WebTransport over HTTP/3" individual draft:
https://tools.ietf.org/html/draft-vvv-webtransport-http3

We are therefore placing this document in a call for adoption.

Please reply to this email stating whether you support adoption
of draft-vvv-webtransport-http3 by the WEBTRANS WG. Note
that WG adoption does not indicate consensus on the contents
of the document, only that it's a reasonable starting point for
us to start working on. As such, please DO NOT send comments
about the technical details of the draft on this email thread - please
create a separate email thread on <[e-mail]> or open
a GitHub issue at <https://github.com/vasilvv/webtransport/issues>.

As usual, if you believe that we should not adopt this document,
please state why. In our last meeting we've noted some concerns
around pooling for example, and we plan on discussing those as
a working group once the document is adopted.

This adoption call will last for two weeks until 2021-02-10.

Thanks,
David

On Tue, Jan 12, 2021 at 9:25 AM David Schinazi <[e-mail]>
wrote:

> Hi WebTransport enthusiasts,
>
> Today we had an interim of the IETF WEBTRANS WG,
> where we reached consensus in the (virtual) room on
> the following questions:
>
> Question 1: number of protocols
>     Should the working group adopt only one UDP-based transport?
>     1A: only one transport (QUIC or HTTP/3)
>     1B: multiple transports (QUIC and HTTP/3)
>
> The consensus was option 1A.
>
> Additionally, we noted that this does not preclude us from
> building a second protocol at a later date if new information
> emerges.
>
> Question 2: UDP-based protocols
>     Which UDP-based option should we adopt as a starting
>     point for WebTransport protocol?
>     2A: WebTransport over HTTP/3
>     2B: WebTransport over QUIC directly (separate ALPN)
>
> The consensus was option 2A.
>
> Additionally, we discussed pooling and decided that we would
> not allow pooling in WebTransport over HTTP/3 for now, due
> to the complexities of pooling.
>
> We'd like to confirm this consensus on the list. If you disagree
> with these points, please reply on the list. If you do so, please
> state how strongly you feel - whether you are expressing a
> preference, or an imperative. Please also provide as much
> detail as possible to explain your position. Please also respond
> if you support this consensus - a simple "I support this consensus"
> email to the list would be helpful.
>
> We'll be running this consensus call for two weeks, please reply
> before 2021-01-26, the chairs will determine consensus on that date.
>
> Thanks,
> David
>