Re: [Mops] FW: Multicast for the Web (and WebTransport in particular)

[Spencer Dawkins at IETF <[e-mail]>]

Hi, Jake,

On Thu, Jul 29, 2021 at 12:59 PM Holland, Jake <jholland=
[e-mail]> wrote:

> Hi Mops,
>
> Ali just mentioned that the mops group also might be
> interested in Web multicast, since video is such an important
> use case for it.
>
> It's very late notice, sorry, but anyone who can make it is
> invited to attend the Web Multicast bar bof starting in 2
> minutes.
>

This was a very interesting side meeting.

Could I ask where you expect discussion to happen, and where the notes
would be posted?

Best,

Spencer


> Best regards,
> Jake
>
> On 07-22, 10:44 AM, "Holland, Jake" <[e-mail]> wrote:
>
> Hi WebTransport,
>
> I'd like to let you know about a new W3C Community group
> dedicated to incubating Multicast support for web traffic:
> https://www.w3.org/community/multicast/
> https://w3c.github.io/multicast-cg/multicast-cg-charter.html
>
> For the first phase, we're working toward an integration with
> WebTransport, as the charter describes in more detail.
>
> I've set up a bar bof side meeting at 11am Pacific Time on
> Thursday July 29th to discuss further.  Details are attached,
> the meeting link is at the bottom, and it's registered here:
> https://trac.ietf.org/trac/ietf/meeting/wiki/111sidemeetings
>
> (I'd ask for a slot in webtrans, but hilariously, it's at the
> same time as mboned, where some other parts of this work are
> under way.)
>
>
> A little more background:
>
> Akamai is wrapping up some trials and discussions with several
> ISPs and content owners evaluating the feasibility of standards-
> based multicast delivery for our popular production traffic on a
> 3-5 year timeline.  The trials were checking whether our
> prototypes and specs look like they'll be feasible to deploy
> after productizing them, and whether the achievable traffic
> offload would make investment worthwhile.
>
> The moderately positive results of these trials (as well as some
> interest generated during a W3C Interest group presentation) led
> to the creation of the new community group as part of our next
> steps.
>
> We'll be relying on progress on some of the IETF docs to clarify
> and address the networking requirements for web traffic as it
> relates to multicast IP delivery.
>
> The first one to consider from the webtrans point of view is
> probably our recently-posted security considerations draft:
> https://datatracker.ietf.org/doc/html/draft-krose-multicast-security
>
> The aim is for this doc ultimately to perform a similar function
> to what RFC 8826 did for WebRTC.
>
> There are other relevant docs that taken together we think can fill
> the security needs we know about so far, with a little refinement:
> https://datatracker.ietf.org/doc/html/draft-ietf-mboned-ambi
> https://datatracker.ietf.org/doc/html/draft-pardue-quic-http-mcast
>
> I understand this to be outside webtransport's current charter,
> but we'd like to develop this work between now and IETF 112, and in
> November to bring a coherent and well-supported proposal for next
> steps either to a venue like secdispatch or to a BoF for an
> appropriate new group, depending on the advice we get along the way.
>
> One option that might be worth considering would be rechartering
> webtransport to allow for a scope that includes this work.
>
> But even if that turns out not to be the right thing, we expect
> that members of webtransport will have crucial expertise and opinions,
> and we would value your feedback and request some level of liaison as
> we try to move this forward.
>
> I hope to see some of you next Thursday.
>
> Best regards,
> Jake
>
> [1] Webex meeting for Thursday at 11am Pacific (1 hour before the
> first sessions of the day):
>
> https://akamai.webex.com/akamai/j.php?MTID=mbe0822775e2ba553d4669b441833ec38
>
>
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