Re: [nmrg] [NMRG] Reminder: RG Last Call for draft-irtf-nmrg-ibn-concepts-definitions

Walter Cerroni <walter.cerroni@unibo.it> Wed, 28 October 2020 17:52 UTC

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To: Jérôme François <jerome.francois@inria.fr>, "nmrg@irtf.org" <nmrg@irtf.org>
Cc: "nmrg-chairs@irtf.org" <nmrg-chairs@irtf.org>
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From: Walter Cerroni <walter.cerroni@unibo.it>
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Date: Wed, 28 Oct 2020 18:52:43 +0100
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Subject: Re: [nmrg] [NMRG] Reminder: RG Last Call for draft-irtf-nmrg-ibn-concepts-definitions
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Hi,

responding as an NMRG participant.

I found this I-D very interesting and definitely useful to shed some light on the concepts of intent and related system functionality. I especially liked the discussion about the distinction between intent, policy, and service models, which are very often confused and misinterpreted. Also, the proposed definition of IBN functionality and intent life-cycle were very useful in the context of my own research activity on IBN.

Here's a couple of minor suggestions for improvement:

Section 1, p. 3: The sentence starting with "Adaptability to changes at scale is a fundamental property of a well-designed IBN system,..." seems to assume that the general concepts of "IBN system" and "intent" are already known to the reader. But those very same concepts are introduced later on in the draft. Maybe that sentence could be rephrased and made more general, not mentioning IBN and intents yet.

Section 4.1, p. 6: The sentence starting at the bottom of the page mentions that "In an autonomic network, intent should be rendered by the network itself..." Is that true only for autonomic networks? How about other types of networks? Previously it was mentioned that "...the concept of 'Intent' is not limited to autonomic networks, but applies to any network." To be consistent, the sentence at the end of page 6 should be complemented with something related to non-autonomic networks, or just made more general.

Section 4.2.2, p.11: At some point the PBM acronym is used, which was never defined before. Maybe the authors intended to use PBNM instead.

In conclusion, I support this I-D and consider it ready for IRSG review, pending the minor changes suggested above.

Best regards,


Walter


On 10/21/20 1:45 PM, Jérôme François wrote:
> Dear all,
> 
> Just a kind reminder that we entered into the last call for the Intent-Based Networking - Concepts and Definitions" draft:
> 
> https://datatracker.ietf.org/doc/draft-irtf-nmrg-ibn-concepts-definitions/
> 
> To progress on RFC publictation, describing the level of support for publication is necessary*. So, your feedback (negative and positive) is also necessary on both technical and editorial quality of the document.  It does not need to be long, in particular if you think the document is ready for IRSG review, but we need to know your opinion.
> 
> In order to let you enough time to read and review the document, we decided to extend the deadline to Oct 28.
> 
> Best regards,
> Jérôme and Laurent
> NMRG chairs
> 
> *https://trac.ietf.org/trac/irtf/wiki/IRTF-RFCs
> 
> _______________________________________________
> nmrg mailing list
> nmrg@irtf.org
> https://www.irtf.org/mailman/listinfo/nmrg

-- 
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        Walter  Cerroni
DEI -- Universita' di Bologna
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