Re: [Teas] New Version Notification for draft-wd-teas-ietf-network-slice-nbi-yang-03.txt

"Ogaki, Kenichi" <ke-oogaki@kddi.com> Tue, 13 July 2021 04:36 UTC

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From: "Ogaki, Kenichi" <ke-oogaki@kddi.com>
To: "mohamed.boucadair@orange.com" <mohamed.boucadair@orange.com>, "teas@ietf.org" <teas@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/teas/IvzDA6WlMTspoGSeelV_ajv5Vjg>
Subject: Re: [Teas] New Version Notification for draft-wd-teas-ietf-network-slice-nbi-yang-03.txt
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Hi Med and All,

Thanks for your comments.

>(1) I don't expect draft-wd-teas-ietf-network-slice-nbi-yang to enter to specifics about how to realize a slice but to focus on the required data nodes to manage (including request) slices. 

We totally agree with your opinion, but the solution is definitely similar as the existing solution, actn-vn-yang. The characteristics of most of data nodes are same and just renamed for ietf-network-slice.
In such a case, reinventing the wheel is allowed or the existing solution should be augmented.
Which is correct approach as IETF procedure? That's our question.

>(2) It is true that the data nodes that characterize the slice service within the slice provider are technology-agnostic, but aren't for the CE-PE attachment as this conditions how the service is delivered. 

We totally agree with you. Inside a slice, technology should be agnostic, but the demarcation point inside/outside the slice cannot avoid being technology specific.

>(3) The applicability of ACTN should IMHO be more part of I-Ds such as draft-barguil-teas-network-slices-instantation, not draft-wd-teas-ietf-network-slice-nbi-yang.

We will check.


Thanks,
Kenichi

-----Original Message-----
From: mohamed.boucadair@orange.com <mohamed.boucadair@orange.com> 
Sent: Monday, July 12, 2021 4:59 PM
To: 大垣 健一 <ke-oogaki@kddi.com>om>; teas@ietf.org
Subject: RE: New Version Notification for draft-wd-teas-ietf-network-slice-nbi-yang-03.txt

Hi Kenichi, all, 

All good points, but I will focus on you first point below:

(1) I don't expect draft-wd-teas-ietf-network-slice-nbi-yang to enter to specifics about how to realize a slice but to focus on the required data nodes to manage (including request) slices. 

(2) It is true that the data nodes that characterize the slice service within the slice provider are technology-agnostic, but aren't for the CE-PE attachment as this conditions how the service is delivered. 

(3) The applicability of ACTN should IMHO be more part of I-Ds such as draft-barguil-teas-network-slices-instantation, not draft-wd-teas-ietf-network-slice-nbi-yang. 

Cheers,
Med

> -----Message d'origine-----
> De : Teas [mailto:teas-bounces@ietf.org] De la part de Ogaki, Kenichi 
> Envoyé : lundi 12 juillet 2021 09:03 À : teas@ietf.org Objet : Re: 
> [Teas] New Version Notification for draft-wd-teas-ietf- 
> network-slice-nbi-yang-03.txt
> 
> Hi Authors and All,
> 
> We have some questions how to proceed this work.
> 
> 1. How should we create a new solution where the solution is similar 
> to an existing solution?
>  As Dhruv, co-author of both drafts, should know well, the many 
> functionalities of this nbi are same as those of actn-vn-yang. As 
> described in B.1, we agree that actn-vn-yang is only focusing on ACTN 
> and this nbi is technology agnostic.
> However, draft-ietf-teas-ietf-network-slices definitely addresses the 
> applicability of ACTN. So, this nbi should at least import actn- 
> vn-yang and refer the nodes defined in actn-vn-yang?
> I'm not sure how to create a new solution for such a case.
> 


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