Re: [RTG-DIR] [i2rs] Rtgdir last call review of draft-ietf-i2rs-yang-network-topo-14

"Alexander Clemm" <ludwig@clemm.org> Wed, 26 July 2017 15:09 UTC

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From: "Alexander Clemm" <ludwig@clemm.org>
To: "'Susan Hares'" <shares@ndzh.com>, "'Ines Robles'" <mariainesrobles@googlemail.com>, <rtg-dir@ietf.org>
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Subject: Re: [RTG-DIR] [i2rs] Rtgdir last call review of draft-ietf-i2rs-yang-network-topo-14
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Ines, 

Thank you for your review!  We will be updating the document soon.  

Kind regards
--- Alex

-----Original Message-----
From: i2rs [mailto:i2rs-bounces@ietf.org] On Behalf Of Susan Hares
Sent: Tuesday, July 25, 2017 10:24 AM
To: 'Ines Robles' <mariainesrobles@googlemail.com>;; rtg-dir@ietf.org
Cc: rtg-ads@ietf.org; i2rs@ietf.org; ietf@ietf.org; draft-ietf-i2rs-yang-network-topo.all@ietf.org
Subject: Re: [i2rs] Rtgdir last call review of draft-ietf-i2rs-yang-network-topo-14

Ines:

Getting this review on the Monday after IETF shows what a diligent reviewer you are.  The authors will be responding shortly. 

Cheerily, 
Sue Hares 

-----Original Message-----
From: i2rs [mailto:i2rs-bounces@ietf.org] On Behalf Of Ines Robles
Sent: Monday, July 24, 2017 7:14 PM
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Cc: rtg-ads@ietf.org; i2rs@ietf.org; ietf@ietf.org; draft-ietf-i2rs-yang-network-topo.all@ietf.org
Subject: [i2rs] Rtgdir last call review of draft-ietf-i2rs-yang-network-topo-14

Reviewer: Ines Robles
Review result: Has Issues

Hello,

I have been selected as the Routing Directorate reviewer for this draft. The Routing Directorate seeks to review all routing or routing-related drafts as they pass through IETF last call and IESG review, and sometimes on special request. The purpose of the review is to provide assistance to the Routing ADs.
For more information about the Routing Directorate, please see ​http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir

Although these comments are primarily for the use of the Routing ADs, it would be helpful if you could consider them along with any other IETF Last Call comments that you receive, and strive to resolve them through discussion or by updating the draft.

Document: draft-ietf-i2rs-yang-network-topo-14.txt
Reviewer: Ines Robles
Review Date: 07-25-2017
Intended status: Standards Track

Summary:
I have some minor concerns about this document that I think should be resolved before publication.

Comments:

I believe the draft is technically good. This document is well written and clear to understand. The figures are clear and helpful.

Major Issues:

No major issues found.

Minor Issues:

Since this document specifies a data model, I would include some text related to the Information Model [RFC 3444]. How would it be in this context?

1- Section 1

  1.a following Figure 1 (Page 4):

    I would add in the figure the corresponding section that explain the
    module. e.g. Abstract Network Model, I would add in the figure "Abstract
    (base) Network Model" and "section 4.1". The same for "Abstract Topology
    Model", should it be section 4.2?

  1.b -following Figure 2 (Page 5):

      1.b.1- " X1 and X2 - mapping onto... ",  I think it would be "X1 and X3
      mapping onto..."

      1.b.2- " a single L3 network element", I would add in this case (Y2) "a
      single L3 (Y2) network element", the same for "The figure shows a single
      "L3" network element mapped onto multiple "Optical" network elements.", I
      would add "The figure shows a single "L3" network element (Y2) mapped
      onto multiple "Optical" network elements [Z] and [Z1]."

      1.b.3- I would expand ROADMs --> Reconfigurable Optical Add/Drop
      Multiplexers (ROADMs)

2- Section 2:

  2.1- I would add a reference to RFC 6020, since the document uses terminology
  e.g container, augment, etc. which are defined in 6020. Even if this RFC is
  mentioned in the normative reference, still I would add it here as well.

3- Section 3:

  3.1-  ReST is mentioned here but not in the rest of the draft, is this
  correct?

Nits:

1- Pag. 18: is that correct?: "(a string is a string is a string)"

2- pag. 34: I would expand NMS -> NMS (Network Management System)

3- pag. 34: I would add a definition about TE Topology : "TE-Topology: The TE Topology is a schematic arrangement of TE nodes
   and TE links in a given TED. It forms the basis for a graph suitable
   for TE path computations."
   [https://tools.ietf.org/html/draft-ietf-teas-yang-te-topo-12]

4- pag. 34: topoogical -> topological

5- pag 35: "uber-network device" -> over-network device?

Thanks,

Ines.


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