Tomorrow (the 1s5) at 9:30am Pacific (4:30pm UTC) is June's multicast-cg meeting

Hi multicast-cg,

Tomorrow's meeting will be at 4:30pm UTC (9:30am Pacific time), I
hope to see you then.

Proposed agenda:

- 5 min: welcome and agenda-bash
- 30-45 min: Status update & discussion
  - We had another productive month.  Max, Leo, Kyle, and I continued
    some decent work toward a demo of the proposed multicast extension
    for quic.  You can follow our progress here:


  - noticed a new problem last week with webtransport (if we could have a
    server-chosen session id, we could use our multicast channels for
    webtransport server-initiated streams, but without it I think we'll
    have trouble.  (Same problem with http-datagrams, which webtransport
    uses by reference.). See sections 2.3 and 4.1 of webtransport-02:

  - So I think this month we'll want to update the spec one more time in
    the IETF datatracker and reach out to at least the msec list and
    probably the webtransport list to see if there's any reasonable way
    to make the session ids server-chosen values so they can be used for
    multicast.  (Another alternative would be to make them fit in a fixed-
    size block that can be sent in the unicast connection, with the stream
    data then going in the multicast channel at a later offset.  Less
    efficient but at least possible.  But the way it is now with a variable
    length ID chosen by client, it's hard to see how it can be made to work.)
- 10 min: Next Steps

See you tomorrow.


PS: last month's meeting notes and recording are posted, I think I forgot
to send out an update when they went up, sorry:

Meeting coordinates:

Monthly Multicast W3C Community Group Meeting
Hosted by Jake Holland

Wednesday, Jun 1, 2022 9:30 am | 1 hour | (UTC-07:00) Pacific Time (US & Canada)
Occurs the first Wednesday of every month effective 1/5/2022 from 9:30 AM to 10:30 AM, (UTC-07:00) Pacific Time (US & Canada)
Meeting number: 145 142 6461
Password: yay-multicast!
Agenda: Recurring monthly meeting for W3C Multicast Community Group (

A specific agenda should go out ahead of the meeting on the public mailing list:

The agenda outline is generally:
- Agenda-bashing
- Present updates since prior month
- Discuss next steps
- Schedule a working session to work on the next steps (usually)

Please note:

This meeting will be recorded if nobody withholds consent, as covered by the latest draft process guidelines:

The purpose of recording is to aid with minutes, enable later review of comments, and to help future new or prospective group members get oriented. The video will be posted to Youtube and made publicly available without an expiration. However, if requested by recorded participants, sections of the public recording will be redacted to their satisfaction as needed, before or after publication (though after publication of course there may be copies outside our control). A link to the recording will be kept in the meeting log here (and updated if replaced with a redacted recording):

This is a W3C Community Group meeting, so it's to operate under the W3C Code of Ethics and Professional Conduct:

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Received on Tuesday, 31 May 2022 23:31:02 UTC