IETF MOQ WG: Sender Side Track Switching (SSTS)

Message Snapshot

• List: moq@ietf.org
• Thread subject: Sender Side Track Switching (SSTS)
• Message subject: [Moq] Sender Side Track Switching (SSTS)
• Author: Law, Will
• Published: 2026-08-04T14:41:43.000Z
• Source tag: ietf-mailing-list
• Message URL: Open in IETF Mail Archive

Summary

Law, Will posted to the MOQ working group mailing list on August 4, 2026. Based on feedback received at Vienna, I have reformatted PR 'Add Sender-Side Track Switching (SSTS)� #1638<https://github.com/moq-wg/moq-transpor…

Why It Matters

This message came from the public MOQ working group archive and captures active discussion, meeting coordination, or implementation feedback around Media over QUIC.

Message Excerpt

Based on feedback received at Vienna, I have reformatted PR 'Add Sender-Side Track Switching (SSTS)� #1638https://github.com/moq-wg/moq-transport/pull/1638 as an external draft, which defines an extension to MOQT to enable Sender-Side Track Switching. HTML: https://wilaw.github.io/moqt-ssts/draft-wilaw-moq-moqt-ssts…

Plain-Text Body

Based on feedback received at Vienna, I have reformatted PR 'Add Sender-Side Track Switching (SSTS)� #1638https://github.com/moq-wg/moq-transport/pull/1638 as an external draft, which defines an extension to MOQT to enable Sender-Side Track Switching.

HTML: https://wilaw.github.io/moqt-ssts/draft-wilaw-moq-moqt-ssts.html Repo: https://github.com/wilaw/moqt-ssts Issues: https://github.com/wilaw/moqt-ssts/issues

The default publisher algorithm has been updated and improved, along with the prose. A security considerations section has been added, along with IANA actions.

Currently, the extension defines a base mechanism for supporting multiple switching algorithms and then also defines an instance of one of these algorithms, which is termed algorithm 0. One suggestion at Vienna was that we could place the base definition for SSTS into the core MOQT spec and then move all algorithms into external drafts. Input on this direction is appreciated.

I am requesting review, ahead of publishing an I-D draft and hopefully presentation time at a virtual interim.

Cheers Will

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