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Re: [dispatch] Draft on Discarding Priority of RTP Video Packets

Ron Even <ron.even.tlv@gmail.com> Wed, 13 July 2022 07:19 UTC

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From: Ron Even <ron.even.tlv@gmail.com>
Date: Wed, 13 Jul 2022 10:18:45 +0300
Message-ID: <CAHy0fzAmg3jhFwm7fptPGRTCEqX6FF-AiRH82f_hciy2HTjRtQ@mail.gmail.com>
To: Lijun Dong <lijun.dong@futurewei.com>
Cc: "dispatch@ietf.org" <dispatch@ietf.org>, Stuart Clayman <s.clayman@ucl.ac.uk>, Muge Sayit <mugefesci@gmail.com>
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Subject: Re: [dispatch] Draft on Discarding Priority of RTP Video Packets
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Hi,
I had a proposal in the past to use
https://datatracker.ietf.org/doc/html/draft-ietf-avtext-framemarking-13 for
defining priority in the past. see
https://datatracker.ietf.org/doc/html/draft-even-avtcore-priority-markings-03
.
Roni Even

On Wed, Jul 13, 2022 at 2:59 AM Lijun Dong <lijun.dong@futurewei.com> wrote:

> Hi dispatch:
>
>
>
> I want to share my recently submitted draft on “Discarding Priority of RTP
> Video Packets”.
>
>
>
> https://datatracker.ietf.org/doc/draft-dong-priority-rtp-packet/
> <https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fdraft-dong-priority-rtp-packet%2F&data=05%7C01%7Clijun.dong%40futurewei.com%7Cf4f099e6e73948d8ec8b08da645f3cd2%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637932657449689304%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=Z1%2BLmuaJWeZHd6TIDI%2F0o3ukSdRXRNi8oZb1hKaxYro%3D&reserved=0>
>
>
>
> It is observed that significance difference or discarding priority might
> exist among RTP packets which encapsulate video streaming data with the
> existing modern video codecs. So selectively dropping RTP packets according
> to their significances could be a complementary mechanism when dealing with
> network congestion and improve end user’s QoE. The draft proposes that the
> video source or edge node with media-awareness could perform mapping of RTP
> packet discarding priority carried in RTP NALU header to a DSCP value, such
> that the priority-based dropping could happen at the packet level when
> network congestion happens.
>
>
>
> I look forward to your generous comments and suggestions.
>
>
>
> Lijun
>
>
>
>
>
>
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