Re: [Webtransport] Confirming Consensus on WebTransport protocols

Bernard Aboba <bernard.aboba@gmail.com> Tue, 12 January 2021 17:35 UTC

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From: Bernard Aboba <bernard.aboba@gmail.com>
Date: Tue, 12 Jan 2021 09:35:33 -0800
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To: Ian Swett <ianswett=40google.com@dmarc.ietf.org>
Cc: David Schinazi <dschinazi.ietf@gmail.com>, WebTransport <webtransport@ietf.org>
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Subject: Re: [Webtransport] Confirming Consensus on WebTransport protocols
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I also support the consensus, with concerns about pooling (particularly
pooling of HTTP/3 and H3Transport).

On Tue, Jan 12, 2021 at 9:33 AM Ian Swett <ianswett=
40google.com@dmarc.ietf.org> wrote:

> I support this consensus.
>
> I do have concerns about the complexity of different types of pooling, but
> I'm sure we'll discuss those in the future.
>
> On Tue, Jan 12, 2021 at 12:26 PM David Schinazi <dschinazi.ietf@gmail.com>
> 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
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>>
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