Re: [Teas] New Version Notification for draft-liu-teas-transport-network-slice-yang-09.txt

[[e-mail]]

Hi Aihua, all,

Many thanks for the effort to address the comments. Much appreciated.

I finally managed to review the latest version. I like the changes, overall. At least, we can park for now the comment about positioning this work vs. SAP (to better emphasis on the differences, you may mention that SAP hides internals while you want some virtual internals to be exposed/controlled). Likewise, the positioning vs. NRP topo is crystal clear.

However, the justification vs ACTN-VN is weak IMO. No argument is actually provided in these two paragraphs let alone that the causality effect in the 2nd para is not that trivial to say the least:

=
   [I-D.ietf-teas-ietf-network-slice-nbi-yang] further elaborates on
   network slices by incorporating references to a customer intent
   topology based on [RFC8345].  This approach aligns with the ACTN Type
   2 VN, although without specifying the explicit use of such a
   topology.

   Consequently, the data model defined in this document serves as a
   complementary option to the data model outlined in
   [I-D.ietf-teas-ietf-network-slice-nbi-yang].  It empowers customers
   to define a customized intent topology specifically tailored for
   their network slices.
==

What would actually help is, e.g.,:

  *   Call out key aspects that can’t be exposed using VN Type 2
  *   Characterize that VN is too complex for exposing and controlling abstract paths/topologies for the slicing needs

BTW, I don’t think text such as the following is needed nor justified because this is deployment specific + what matters is the SDP connectivity type:


   Compared to network slices with

   dedicated full-mesh connectivity constructs between endpoints,

   network slices utilizing customer intent topologies can reduce

   overall resource requirements, offering significant economic benefits

   to the customer.

Cheers,
Med

De : Aihua Guo <[e-mail]>
Envoyé : vendredi 1 mars 2024 21:08
À : BOUCADAIR Mohamed INNOV/NET <[e-mail]>
Cc : TEAS WG <[e-mail]>
Objet : Fwd: New Version Notification for draft-liu-teas-transport-network-slice-yang-09.txt

Hi Med, WG,

We have uploaded an updated version of the draft with an effort to address the concerns received in prior WG discussions. This revision includes updated descriptions regarding the use of the network slice topology to support resource reservation in a network slice context. We also added a new section (section 2.1-2.3) to describe the relationship of this model with other data models, such as TE topology, SAP topology and ACTN VN.

The authors would much appreciate your review and comments to the draft and are open for discussion before or during the WG meeting.

Thank you.
Aihua (on behalf of the co-authors and contributors)

---------- Forwarded message ---------
From: <[e-mail]<mailto:[e-mail]>>
Date: Fri, Mar 1, 2024 at 11:17 AM
Subject: New Version Notification for draft-liu-teas-transport-network-slice-yang-09.txt
To: Luis M. Contreras <[e-mail]<mailto:[e-mail]>>, Aihua Guo <[e-mail]<mailto:[e-mail]>>, Igor Bryskin <[e-mail]<mailto:[e-mail]>>, Italo Busi <[e-mail]<mailto:[e-mail]>>, Jeff Tantsura <[e-mail]<mailto:[e-mail]>>, Qin WU <[e-mail]<mailto:[e-mail]>>, Reza Rokui <[e-mail]<mailto:[e-mail]>>, Sergio Belotti <[e-mail]<mailto:[e-mail]>>, Sergio Belotti <[e-mail]<mailto:[e-mail]>>, Xufeng Liu <[e-mail]<mailto:[e-mail]>>


A new version of Internet-Draft
draft-liu-teas-transport-network-slice-yang-09.txt has been successfully
submitted by Aihua Guo and posted to the
IETF repository.

Name:     draft-liu-teas-transport-network-slice-yang
Revision: 09
Title:    IETF Network Slice Topology YANG Data Model
Date:     2024-03-02
Group:    Individual Submission
Pages:    37
URL:      https://www.ietf.org/archive/id/draft-liu-teas-transport-network-slice-yang-09.txt
Status:   https://datatracker.ietf.org/doc/draft-liu-teas-transport-network-slice-yang/
HTMLized: https://datatracker.ietf.org/doc/html/draft-liu-teas-transport-network-slice-yang
Diff:     https://author-tools.ietf.org/iddiff?url2=draft-liu-teas-transport-network-slice-yang-09

Abstract:

   An IETF network slice customer may utilize intent-based topologies to
   express resource reservation intentions within the provider's
   network.  These customer-defined intent topologies allow customers to
   request shared resources for future connections that can be flexibly
   allocated and customized.  Additionally, they provide an extensive
   level of control over underlay service paths within the network
   slice.

   This document describes a YANG data model for configuring customer
   intent topologies for network slices using IETF technologies defined
   in RFC YYYY.

   [RFC EDITOR NOTE: Please replace RFC YYYY with the RFC number of
   draft-ietf-teas-ietf-network-slices once it has been published.



The IETF Secretariat

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