Hi,

On Mon, Oct 6, 2025, at 09:34, Lars Eggert wrote:
> Hi,
> 
> On Oct 1, 2025, at 07:35, Ian Swett <[email protected]> wrote:
> > I remember us having a longish discussion about whether this should be 
> > standards track or not.  I still don't feel like it's ready for standards 
> > track
> 
> +1

Responding to both Ian and Lars, I went back over the issues and minutes of the 
last few meetings. I didn't find much on this topic (if I've missed something, 
I would appreciate you sharing that here). The most relevant was probably the 
discussion during IETF 121 (Dublin) and IETF 122 Bangkok, see minutes [1][2] 
and recording at around 57 and 26 minute mark respectively[3][4].

As a chair: my interpretation of those meeting discussions was that there were 
some comments stating concerns of publishing a proposed standard for a 
multipath QUIC extension that could appears to indicate that deployments could 
just flip this on for general-purpose use cases. The author/chair response at 
the time was that the document explicitly excludes some areas related to 
scheduling of paths and congestion control because those are open research 
topics that we agreed in the adoption phase would stay out of scope for this 
document.

There were comments from individuals such as Martin Duke and Lars Eggert that 
I, as a chair, interpret to mean that they could live with a standards-track 
document (i.e. not calling for an experimental document) if it would make some 
editorial changes. For instance clarify and reinforce the foundational 
capabilities of the extension, and what things specific deployments or use 
cases would need to consider, while avoiding normative references on something 
that is a research topic. I believe the document updates made and captured in 
(at the time of writing) draft 16 address these requests. Do you think there 
are further changes needed?

As a chair: I have not heard anyone declare a strong opinion that the draft 
should not be standards track, or that it should be experimental. If that is 
not the case, we need clearer statements based on the latest version of the 
documents. Please make them here.

As an individual:: My comments at IETF 122, which were not reflected in the 
meeting notes due to audio issues, were that we shipped QUIC version 1 with 
barely any information about concurrent stream scheduling [5]. For a protocol 
designed to solve stream concurrency head-of-line blocking as a primary 
motivator, not including any prioritization signal nor guidance for scheduling 
didn't seem great but it also didn't seem to hurt QUIC deployments. 

Cheers
Lucas

[1] - https://datatracker.ietf.org/meeting/122/materials/minutes-121-quic-00
[2] - https://datatracker.ietf.org/meeting/122/materials/minutes-122-quic-00
[3] - https://youtu.be/PVNve8USz84?t=3421
[4] - https://youtu.be/9NR_MndcJIY?t=1569
[5] - https://datatracker.ietf.org/doc/html/rfc9000#section-2.3




> Thanks,
> Lars
> 
> 
> 
> *Attachments:*
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