Hi Med,

My individual preference (i.e., w/o my AD hat), would be to leave them
separate. That content seems more appropriate for a standards track
document and not this BCP.

Thanks,
Ketan


On Wed, Jun 4, 2025 at 1:42 PM <[email protected]> wrote:

> Re-,
>
>
>
> Regarding a prefix of "exp-ietf" for experimental. That would be changing
> what is in https://datatracker.ietf.org/doc/html/rfc6020#section-14 which
> allows for "ieft-" for all of the IETF stream tracks. I would suggest
> starting that as a separate conversation outside of this current document.
>
> *[Med] FYI, we used to have updates to IANA cons in 6020 as part of the
> 8407bis. These matters are covered now in
> https://datatracker.ietf.org/doc/html/draft-ietf-netmod-rfc6020-iana-update-01
> <https://datatracker.ietf.org/doc/html/draft-ietf-netmod-rfc6020-iana-update-01>.
> Both will be synced if we conclude to go that path.  *
>
>
>
> Cheers,
>
> Med
>
>
>
> *De :* Ketan Talaulikar <[email protected]>
> *Envoyé :* mercredi 4 juin 2025 10:00
> *À :* BOUCADAIR Mohamed INNOV/NET <[email protected]>
> *Cc :* Mahesh Jethanandani <[email protected]>; NETMOD Group <
> [email protected]>
> *Objet :* Re: YANG in EXP/INFO Documents (was RE: [netmod] Ketan
> Talaulikar's Discuss on draft-ietf-netmod-rfc8407bis-25: (with DISCUSS and
> COMMENT)
>
>
>
> Hi Med and netmod WG,
>
>
>
> I see a YANG module as adjunct to the feature that it enables operations
> and management for. My view comes mostly from the routing and routing
> protocols space. I realize that at various other levels of abstractions and
> types of models, the views would be different.
>
>
>
> Coming back to the application of YANG models for routing, I believe it
> should follow the status of the feature. I am assuming that the IETF
> strongly wants to encourage development of YANG modules to happen adjunct
> (and preferably in the same document?) as the rest of the protocol spec.
>
>
>
> I view this debate about standards/experimental/information more as a
> distraction from the main purpose of this document (
> draft-ietf-netmod-rfc8407bis) - which is guidelines for writing/reviewing
> YANG modules (in the IETF?).
>
>
>
> There will continue to be debates about the correct track of both the
> protocol specs and their corresponding YANG modules. There is a great
> deal of subjectivity and decisions are made by the WGs, ADs, IESG on a case
> by case basis. Let it be so. I also want to try and impress that
> Experimental specs are all not some weird stuff being produced (though
> opinions vary widely from case to case basis). There are enough experiments
> (and even things in informational documents) that have gone on to gain
> mainstream industry relevance.
>
>
>
> How about this document steers clear of that debate and instead focuses on
> the modules themselves? How about we just say for all of the IETF
> stream documents? That will address my concerns.
>
>
>
> Regarding a prefix of "exp-ietf" for experimental. That would be changing
> what is in https://datatracker.ietf.org/doc/html/rfc6020#section-14 which
> allows for "ieft-" for all of the IETF stream tracks. I would suggest
> starting that as a separate conversation outside of this current document.
>
>
>
> Thanks,
>
> Ketan
>
>
>
>
>
> On Wed, Jun 4, 2025 at 1:04 PM <[email protected]> wrote:
>
> Hi all,
> (restricting the discussion to netmod, for now).
>
> I don't think that it makes sense to publish a normative YANG module in an
> Informational RFC. Whether we care about interoperability or not. If we
> care, and a normative YANG module is provided, publishing as Informational
> should not be an option.
>
> I'm also not comfortable claiming that we can publish a "normative" YANG
> as experimental (whatsoever that means), at least without cautions. Beyond
> YANG, publishing as Exp has a meaning and implications (including
> process-wise). For example, RFC2026 says:
>
>    The "Experimental" designation typically denotes a specification that
>    is part of some research or development effort.  Such a specification
>    is published for the general information of the Internet technical
>    community and as an archival record of the work, subject only to
>                                                     ^^^^^^^^^^^^^^^^
>    editorial considerations and to verification that there has been
>    ^^^^^^^^^^^^^^^^^^^^^^^^
>    adequate coordination with the standards process (see below).  An
>    Experimental specification may be the output of an organized Internet
>    research effort (e.g., a Research Group of the IRTF), an IETF Working
>    Group, or it may be an individual contribution.
>
> Of course, the guidance in 8407bis can be followed by authors for such
> document, if they wish so. However, I don't think we need to have strong
> expectations on that. For example,
> * an experiment may have its own cycles and should not be subject, for
> example, to the lifecycle constraints we impose for
> deprecating/obsoleting/etc.
> * a module in an exp spec may not need to be registered within IANA as an
> experiment is in a limited domain and does not involve multiple
> implementations.
> * an experiment may be precisely about testing things that are not
> compliant with guidance
>
> Another dimension is that publishing as Exp require adequate justification
> why we can't publish as PS. For the specific case of YANG, the status of
> the underlying technology should not be the only criteria here as we are
> dealing with the interop between two peers independent of the objects they
> manipulates. At least from where I sit, a normative module can be defined
> as PS even if the underlying technology was Info (e.g., RFC9105).
>
> Things may get complicated with the augmentations and leaking outside the
> IETF. I think I would prefer making this change:
>
> OLD:
>    All normative YANG modules published by the
>    IETF MUST begin with the prefix "ietf-".
>
> NEW:
>    All normative YANG modules published in Standards Track documents by the
>    IETF MUST begin with the prefix "ietf-".  YANG modules published in
> Experimental
>    documents by the IETF MUST begin with the prefix "exp-ietf".
>
> (I prefer exp-ietf to ietf-exp)
>
> Please share your thoughts and suggestions.
>
> Cheers,
> Med (as contributor)
>
> > -----Message d'origine-----
> > De : Mahesh Jethanandani <[email protected]>
> > Envoyé : mercredi 4 juin 2025 07:10
> > À : Ketan Talaulikar <[email protected]>
> > Cc : The IESG <[email protected]>; draft-ietf-netmod-
> > [email protected]; NETMOD WG Chairs <[email protected]>;
> > NETMOD Group <[email protected]>; Kent Watsen <[email protected]>
> > Objet : Re: [netmod] Ketan Talaulikar's Discuss on draft-ietf-
> > netmod-rfc8407bis-25: (with DISCUSS and COMMENT)
> >
> >
> > I am jumping into the middle of a discussion, but I do agree that
> > some of the questions raised by Ketan merit a debate.
> >
> > > On Jun 2, 2025, at 11:03 PM, Ketan Talaulikar via Datatracker
> > <[email protected]> wrote:
> > >
> > > Ketan Talaulikar has entered the following ballot position for
> > > draft-ietf-netmod-rfc8407bis-25: Discuss
> > >
> > > When responding, please keep the subject line intact and reply to
> > all
> > > email addresses included in the To and CC lines. (Feel free to
> > cut
> > > this introductory paragraph, however.)
> > >
> > >
> > > -----------------------------------------------------------------
> > > DISCUSS:
> > > -----------------------------------------------------------------
> > >
> > > Thanks to the authors and the WG for your work on this important
> > document.
> > >
> > > I have one high-level point that I would like to discuss with the
> > > authors and the WG since is it not clear - this is regarding
> > > experimental and information track YANG module documents in IETF
> > stream.
> > >
> > > At a high-level, I would like to discuss and understand whether
> > YANG
> > > model documents can be experimental or informational. I think the
> > > answer is YES? But this is not clear. A follow-on question: what
> > is
> > > the guidance for YANG models specified in standards track
> > document
> > > being augmented by modules in experimental or informational track
> > > document? I think the answer is NO? But again, this is not clear.
> >
> > As far as I understand, an experimental draft can define a protocol
> > normatively using key words from RFC 2119. Similarly, a YANG module
> > should be allowed to be normatively defined in a experimental
> > draft.
> >
> > What I am not clear on is the follow-on question. Are you asking if
> > a YANG module in an experimental draft can augment a YANG module in
> > a PS? My take is that, it should be allowed.
> >
> > >
> > > Please also see in the comments sections for some concerns that
> > are
> > > related to this topic - those are provided inline for better
> > context.
> > >
>
>
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