MoQ Virtual Interim 2025-09-10

Editor slides:
https://datatracker.ietf.org/meeting/interim-2025-moq-26/materials/slides-interim-2025-moq-26-sessa-moqt-prs-for-910-01

PR #949

(Slide 2,3)

• https://github.com/moq-wg/moq-transport/pull/949

• Priority Not Present complexity worth saving a byte per group?

  • Note: some datagram use cases may have 1 object per group
  • Alan leans towards proposal b
  • Martin has slight preference for the simpler to implement a
  • Ye-Kui sees benefit of proposal b compression

• Use a bit for Object ID=0?

  • Suhas: consistency across SUBSCRIBE/FETCH is desireable
    • Alan: FETCH is different enough we might not get true
      consistency

Summary: 1 b and "no" on 2

PR 1159 consolidate errors (slide 4)

• https://github.com/moq-wg/moq-transport/pull/1159
• Ye Kui in favor
• Suhas to comment on PR

No objections voiced

(Note: this PR is about consolidation, not every error-code issue)

Issue 1182 proposal for REQUEST_OK (slide 5)

• https://github.com/moq-wg/moq-transport/issues/1182
• Looking for more feedback before PR
• general support voiced by a few people (Will, Ye Kui, Martin, ...)
• Suhas describes an alternative approach to consolidation
  • question becomes about whether to reorder fields/params

Alan offers to make at least one, mayb two PRs in the next week or so:
- add this
- reordering

PR 1210 - Parameters for Group Order, Subscribe Priority and Subscription Filter (slide 6, 7, 8)

• https://github.com/moq-wg/moq-transport/pull/1210
• Slide 7 show target changes, next targets

• Questions (slide 8):
  1) Should relative Filter Types be allowed in PUBLISH_OK or
  SUBSCRIBE_UPDATE (no way to get Largest back)?
  2) You can’t change End without changing specifying Start; Is that
  a problem?
  3) Omitting Group Order is slightly funky
  4) Do we feel good about leaving Forward “inline”?
  5) Other candidates: Expires and Largest Location

  Discussion (40ish minute mark)
  ...

  Conclusions:
  - please look at PR and leave comments, it closes a ton of issues

PR 1060 NEW_GROUP_REQUEST (slides 9,10)

• https://github.com/moq-wg/moq-transport/pull/1060
• DoS issues a concern

Mike to make slides for Toronto with alternative proposal, otherwise PR
seems close