Re: [Gen-art] [Detnet] Preliminary Qs for Genart review of draft-ietf-detnet-use-cases

[Xavier Vilajosana <[e-mail]>]

Dear Deborah,

thanks for your email. I am well aware of these documents. I find however
the use cases document more interesting as it provides explicit numbers for
different application verticals, and more importantly for me, identifies
verticals with such requirements. Also describes the scope of deterministic
networks in the verticals which can be very different from one to another,
e.g is not the same level of performance what a TSCH network can deliver
(ie. control loops of ~100ms) versus a 1ms control loop required in a
turbine controller. For me the problem statement just sets boundaries and
general requirements but I think that for industries and developers is good
to have references to the particular charactersitcs in particular verticals.

my 2 cents.
kind regards
X
*Xavier Vilajosana*
*CIO*
Office: <+34%20934%2018%2005%2085>[ <+34%20934%2018%2005%2085>+34] 93 418
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Missatge de BRUNGARD, DEBORAH A <[e-mail]> del dia dt., 25 de set.
2018 a les 17:02:

> Hi Xavi,
>
>
>
> Thanks for your interest in detnet!
>
>
>
> It’s not really about the “suitability”. There are many ways a working
> group approaches their documents (or doing a wiki). If you are interested
> in requirements, you may be interested in detnet’s problem statement
> document which captures requirements. It is in IETF Last Call also at this
> time:
>
> https://datatracker.ietf.org/doc/draft-ietf-detnet-problem-statement/
>
>
>
> The other document which provides a comprehensive background is the
> architecture document (also in IETF Last Call):
>
> https://datatracker.ietf.org/doc/draft-ietf-detnet-architecture/
>
>
>
> Deborah
>
> (AD for detnet)
>
>
>
>
>
> *From:* Xavier Vilajosana <[e-mail]>
> *Sent:* Tuesday, September 25, 2018 10:33 AM
> *To:* [e-mail]
> *Cc:* Grossman, Ethan A. <[e-mail]>; [e-mail];
> [e-mail]; [e-mail]; DetNet
> WG <[e-mail]>; BRUNGARD, DEBORAH A <[e-mail]>
> *Subject:* Re: [Detnet] Preliminary Qs for Genart review of
> draft-ietf-detnet-use-cases
>
>
>
> Hi,
>
>
>
> having a use case and requirements document is very important, not only
> for the standardization group but also for the industry and the
> research/academia. The document is setting the base requirements for the
> different verticals and creating a knowledge base that can be used in the
> future by researcher and developer companies to improve or create new
> technologies targeting a particular use case.
>
>
>
> Not sure why there is discussion about the suitability of this document.
> Can someone clarify?
>
>
>
> regards
>
> Xavi
>
>
>
>
> *Xavier Vilajosana*
>
> *CIO*
>
> Office: <+34%20934%2018%2005%2085>[ <+34%20934%2018%2005%2085>+34] 93 418
> 0585 <+34%20934%2018%2005%2085>
>
> Cell: <+34%20934%2018%2005%2085>[ <+34%20934%2018%2005%2085>+34] 646 633
> 681 <+34%20934%2018%2005%2085>
>
> [e-mail]
> <[e-mail]>
>
>
>
>
>
> Missatge de Liubingyang (Bryan) <[e-mail]> del dia dt., 25
> de set. 2018 a les 16:16:
>
> Hi,
>
> I support that the use case document is very useful as "requirements" for
> the deterministic techniques.
> And may I ask why the WG decided not to have a requirement draft? Sorry if
> I missed some meetings or meeting minutes, but I really think a requirement
> document can be helpful for knowing the technique gaps and requirements
>
> Bingyang (Bryan)
>
> -----Original Message-----
> From: detnet [mailto:[e-mail]] On Behalf Of Grossman,
> Ethan A.
> Sent: Tuesday, September 25, 2018 1:31 AM
> To: Pete Resnick <[e-mail]>;
> [e-mail]
> Cc: [e-mail]; [e-mail]; Deborah Brungard <[e-mail]>
> Subject: Re: [Detnet] Preliminary Qs for Genart review of
> draft-ietf-detnet-use-cases
>
> Hi Pete,
>
> My observation is that the DetNet WG made a decision to not have a
> "Requirements" draft, instead casting the Use Cases draft in that role, but
> in a more flexible way, i.e. the design is intended to achieve as much as
> can be achieved toward the "requirements" (the "least common denominator
> features" of those asked for in the collection of use cases) given a
> "reasonable" technology solution.
>
> Thus as the DetNet design progressed, based on that model, certain
> features that were originally asked for in the Use Cases were eventually
> dropped from the Use Cases (and thus from the expectations of DetNet) when
> it was established that these features were not feasible given the sort of
> solution that we could create within the scope of DetNet (for example "it
> should work on the open Internet" was dropped).
>
> I would claim that this role would justify publication, however that's
> just my $0.02.
>
> Best,
> Ethan (as editor of the Use Cases draft)
>
> -----Original Message-----
> From: detnet <[e-mail]> On Behalf Of Pete Resnick
> Sent: Monday, September 24, 2018 8:44 AM
> To: [e-mail]
> Cc: [e-mail]; [e-mail]; Deborah Brungard <[e-mail]>
> Subject: [Detnet] Preliminary Qs for Genart review of
> draft-ietf-detnet-use-cases
>
> Hi Lou,
>
> I've got a preliminary question about draft-ietf-detnet-use-cases that
> isn't answered in the intro to the document or in your shepherd writeup.
> I've Cced the WG just to make sure they're in the loop, and I've Cced the
> gen-art list and the responsible AD just in case Deborah or any of my
> Genart colleagues wish to say, "Pete, stop worrying your pretty little head
> and go finish your Genart review!" And I swear, I'm not asking this just to
> delay having to read 79 pages. (OK, maybe a little.)
>
> What's the motivation behind publishing this document? From the intro, it
> looks like it's purpose was to document the use cases so that the WG could
> do its work. Is there a reason that it needs to be published for posterity?
> Will people in the future need to reference this document? It would help me
> to review the document if I understood why it is being published instead of
> simply being a tool that the WG used and now no longer needs.
>
> I promise, in the meanwhile I'll continue to read the document and get the
> rest of my review finished, but I'd like to understand more about the
> purpose of the document.
>
> Thanks,
>
> pr
>
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