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[Moq] Re: New Version Published: Feedback draft

Cullen Fluffy Jennings <fluffy@iii.ca> Mon, 03 August 2026 16:18 UTC

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From: Cullen Fluffy Jennings <fluffy@iii.ca>
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Date: Mon, 03 Aug 2026 10:18:18 -0600
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To: Yanmei Liu <healing4d@gmail.com>
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CC: moq@mail2.ietf.org, r.wu@antgroup.com, shimei.jmh@alibaba-inc.com, Yanmei Liu <miaoji.lym@alibaba-inc.com>
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Subject: [Moq] Re: New Version Published: Feedback draft
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Thank you for updating this. 

I really like this draft and I think it is getting at some hard problems. 

One additional thing that I wish I could get feedback on what how often fetch had cache misses of objects that had been in the cache of a relay and were evicted before their original publisher provided timeout. 

I have also wondered about using Top N filter to help filter feedback to get just the most important feedback. I don’t have a = design for this but it seems like it might be possible. 



> On Aug 2, 2026, at 10:09 PM, Yanmei Liu <healing4d@gmail.com> wrote:
> 
> Hi all,
> We have published a new version of the MoQ feedback draft:
> https://datatracker.ietf.org/doc/draft-liu-moq-feedback/
> The draft was renamed from “MoQ Multimodal Feedback” to “MoQ Feedback” because the mechanism is intended to support a broader range of use cases. In addition to multimodal transport for live-agent systems, it is also intended to support Relay-based architectures, live streaming, video conferencing, cloud rendering, and other interactive media applications.
> The main updates in this version include:
>     • Motivation for using feedback to improve QoE and support source-rate adaptation in Relay-based deployments.
>     • Two Feedback Types: HOP_FEEDBACK, intended for the Adjacent Media Publisher, and ORIGIN_FEEDBACK, intended for the Media Original Publisher and able to traverse zero or more Relays.
>     • Rules for generating, establishing, binding, and forwarding Feedback Tracks across cascaded Relays.
>     • A Relay-visible MMF_FEEDBACK_TYPE Track Property and updated Feedback Track naming.
>     • Addition of Group ID to the report format so that media Objects are identified by the media Full Track Name, Group ID, and Object ID.
>     • Corresponding updates to the IANA considerations.
> As a draft about feedback, it would naturally benefit from more feedback :)
> We welcome comments on all aspects of the proposed mechanism, particularly regarding feedback semantics and Relay behavior in cascaded deployments.
> 
> Best regards,
> Yanmei Liu
> -- 
> Moq mailing list -- moq@ietf.org
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