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Re: Reminder: Video Ingest over QUIC Side Meeting Friday 7/30 18:00 UTC

Ian Swett <ianswett@google.com> Wed, 28 July 2021 19:42 UTC

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From: Ian Swett <ianswett@google.com>
Date: Wed, 28 Jul 2021 15:41:59 -0400
Message-ID: <CAKcm_gOKv+pOmjaEsP1G_MkpKV_PzRMeutBjH+0kw4omi7F74w@mail.gmail.com>
Subject: Re: Reminder: Video Ingest over QUIC Side Meeting Friday 7/30 18:00 UTC
To: "Das, Dibakar" <dibakar.das@intel.com>
Cc: Alan Frindell <afrind=40fb.com@dmarc.ietf.org>, "quic@ietf.org" <quic@ietf.org>, "mops@ietf.org" <mops@ietf.org>, Kirill Pugin <ikir@fb.com>
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Hi,

I can't answer for Alan, but my belief is yes.  Client wifi stacks
sometimes also do some reordering(and introduce the corresponding latency),
so if we could design an indication that in-order delivery has no value, it
could be fairly widely applicable.

That being said, I don't know what the right mechanism is?  Would we need
something visible to a network or can we get away with a socket option that
propagates to the local 5G network or Wifi firmware when possible?

Ian

On Wed, Jul 28, 2021 at 3:15 PM Das, Dibakar <dibakar.das@intel.com> wrote:

> Hi Kirill, Alan,
>
>
>
> I could not attend the call this week and wont be able to attend this side
> meeting either.
>
>
>
> But I had a general question about the performance of all such QUIC based
> protocols over wireless. Typically, the 5G and WiFI MAC layers deliver
> frames in-order which sort of recreates the HOL blocking problem at lower
> layers. I would expect this to in turn prevent the QUIC protocol to achieve
> its full performance gains at least in some congested network scenarios.
> Considering that in-order delivery is made optional in 5G PDCP, I was
> wondering if there could be a value to have some signaling defined in the
> QUIC (or RUSH ?) protocol that would allow lower layers to make better
> decision about whether to enable/disable in-order delivery for certain
> streams.
>
>
>
> I apologize in advance if this is not the right venue to ask questions.
>
>
>
> Regards,
>
> Dibakar
>
>
>
>
>
>
>
> *From:* QUIC <quic-bounces@ietf.org> *On Behalf Of *Alan Frindell
> *Sent:* Wednesday, July 28, 2021 8:42 AM
> *To:* avt@ietf.org; wish@ietf.org; QUIC WG <quic@ietf.org>; mops@ietf.org
> *Cc:* Kirill Pugin <ikir@fb.com>
> *Subject:* Reminder: Video Ingest over QUIC Side Meeting Friday 7/30
> 18:00 UTC
>
>
>
> Video Ingest over QUIC Side Meeting Friday 7/30 18:00 UTC / 11 Pacific
>
>
>
> Link to draft agenda and video conference details:
> https://github.com/afrind/draft-rush/blob/main/meeting-materials/agenda.2021.07.03.md
>
>
>
> -Alan
>

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