Re: [Iotops] Side meeting on Operations and Control Networks (OCN) (25th Jul, 12:30 pm)

[Kiran M <[e-mail]>]

Hi Brian,

Thank you for taking time to read through the documents. I hope you can 
attend the meeting remotely.

My comments inline with [KM].

Cheers,
Kiran


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*From:* Brian E Carpenter [mailto:[e-mail]]
*Sent:* Tuesday, July 19, 2022, 2:45 PM
*To:* Kiran M; [e-mail]
*Subject:* [Iotops] Side meeting on Operations and Control Networks 
(OCN) (25th Jul, 12:30 pm)

> Hi,
>
> I will not be in the meeting, and I haven't worked in process control
> for many years, but from glancing through the drafts I am not sure that
> I understand what the IETF has to offer on this topic. Yes, certainly we
> offer many technology components such as DETNET and (I hope) ANIMA, but
> is it the IETF's role to offer a reference model or an architecture?

[KM] Maybe (maybe not). The idea behind this is a generalized "network 
model" which from our observation has  a common structure to cover a 
majority of automaton/OT/control systems use cases. The focus will be on 
specific description and characteristics of the interfaces in the model 
where IETF technologies apply, and how they will work.

> There's 50 years of history behind current computerized control systems.
> There's also an emerging industry standard, described at
> https://www.opengroup.org/forum/open-process-automation-forum
[KM] I agree, this does require a close coordination with other SDOs. 
But if it is about IETF technologies, the work should start here. I was 
not aware of this one. Will certainly look up. I am familiar with work 
done in other SDOs - they  generate requirements but not  communication 
standards.
> and
> https://doi.org/10.1016/j.conengprac.2021.105034 **
>
> I can't really tell from the problem statement draft exactly what
> the IETF has to offer that will be different from that work.

[KM] in addition to above, we could figure out if current IETF 
technologies are sufficient, are there pain-points, or we need to 
enhance. With 5G/B5G use cases, there are so many machine to machine 
type communication scenarios, that have specific needs to implement 
remote feedback control loops and precise command delivery mechanisms. 
OCN could describe how will that happen from controller to device when 
there's a network between them. Side meeting is there to specifically 
argue this question.

[KM] BTW, if IETF chooses to take up this work - an approach to 
motivations below will be a great outcome.

>
> I see that the IETF does not currently have a liaison to the Open
> Group, but certainly if we did anything, we would need some liaison.

> [KM] agreed.

Thanks, Kiran

> Regards
>    Brian Carpenter
>
> ** That's behind a paywall, unfortunately. But its motivations are
> very apposite:
>
> "• lack of peer-to-peer interoperability between systems from different
> suppliers
> • inability to reuse user-written configurations or applications between
> systems from different suppliers, and sometimes between
> different generations of one supplier’s products
> • closed, proprietary couplings among components that result in
> whole-system, instead of modular, upgrades or replacements to
> manage obsolescence
> • barriers to business value generation via innovations from the
> insertion of third-party software or hardware technology
> • absence of designed-in cybersecurity mechanisms"
>
> On 20-Jul-22 03:20, Kiran M wrote:
>> Hello IoTOPS,
>>
>> I hope the group finds this interesting.
>>
>> I have talked about industrial operations networks quite a bit last few
>> times. Many thanks for all the feedback I have received so far. It is
>> clear that a certain level of scoping and an informal discussion will be
>> useful. In that regard, we are organizing a side-meeting for discussion
>> on OCNs. Please join us in-person or remotely. Also refer to the 00
>> version documents below that cover use-cases, problem stmt, reference
>> model for discussion.
>>
>> ====Meeting Information====
>>
>> Date:  Monday 25 July
>> Time:  12:30 to 1:30 pm (+/-50 minutes)
>> Room:  Philadelphia South (Mezzanine Level)
>> Webex:
>> https://futurewei.my.webex.com/futurewei.my/j.php?MTID=m8482bdb06635d5ef021e6dcc11d1cd29 
>>
>>
>> Agenda etc. at: https://github.com/kiranmak/meetings-ocn-ietf-114
>>
>> Reference Documents:
>>
>>     [1] https://datatracker.ietf.org/doc/draft-km-intarea-ocn/
>>     [2] https://datatracker.ietf.org/doc/draft-tf-ocn-ps/
>>     [3] 
>> https://datatracker.ietf.org/doc/draft-dong-remote-driving-usecase/
>>     [4] https://datatracker.ietf.org/doc/draft-wmdf-ocn-use-cases/
>>
>>
>> Please reach out to me for further details.
>> See you there!
>> Kiran
>>