Re: [OPSAWG] I-D Action: draft-ietf-opsawg-l2nm-09.txt

mohamed.boucadair@orange.com Mon, 08 November 2021 14:19 UTC

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From: mohamed.boucadair@orange.com
To: tom petch <ietfc@btconnect.com>, "adrian@olddog.co.uk" <adrian@olddog.co.uk>, "opsawg@ietf.org" <opsawg@ietf.org>
Thread-Topic: I-D Action: draft-ietf-opsawg-l2nm-09.txt
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Date: Mon, 08 Nov 2021 14:19:01 +0000
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Subject: Re: [OPSAWG] I-D Action: draft-ietf-opsawg-l2nm-09.txt
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Hi Tom, 

I confirm that Figure 12 is correct. 

What is authoritative is the YANG module. We provided the reader with instructions to generate the full tree:

   The full tree diagram of the module can be generated using the
   "pyang" tool [PYANG].  

It is much more easier to include the full tree and update it once when the module is touched but having a tree spanning dozens of pages is not usable. This is why we are using subtrees:

   That tree is not included here because it is
   too long (Section 3.3 of [RFC8340]).  Instead, subtrees are provided
   for the reader's convenience.

However, this approach has some cons as we need to check manually many many figures. We are doing our best to maintain up-to-date subtrees ... but bugs happen. 

Thank you for helping identifying some of those. 

Cheers,
Med

> -----Message d'origine-----
> De : tom petch <ietfc@btconnect.com>
> Envoyé : lundi 8 novembre 2021 13:51
> À : BOUCADAIR Mohamed INNOV/NET <mohamed.boucadair@orange.com>;
> adrian@olddog.co.uk; opsawg@ietf.org
> Objet : Re: I-D Action: draft-ietf-opsawg-l2nm-09.txt
> 
> From: mohamed.boucadair@orange.com <mohamed.boucadair@orange.com>
> Sent: 08 November 2021 07:38
> Hi Adrian, Tom, all,
> 
> The comments raised by Tom are now addressed in -10.
> 
> <tp A fresh comment on -09 which also applies to -10.
> In Figure 12 I see
>              |           +--rw saii?                      uint32
>              |           +--rw remote-targets* [taii]
>              |           |  +--rw taii         uint32
>              |           |  +--rw peer-addr    inet:ip-address
>  while in Figure 13 I see
>              |           +--rw saii?                      uint32
>              |           +--rw remote-target* [peer-addr taii]
>              |           |  +--rw peer-addr    inet:ip-address
>              |           |  +--rw taii         uint32
> 
> i.e. a change of identifier for the list, a change in keys, a change in
> leaf order.  The YANG suggests that Figure 13 is wrong.  More
> fundamentally, YANG tree diagrams are an aid to understanding and
> reviewing especially with a module as big as this.  If they cannot be
> trusted, then what can?
> 
> Tom Petch
> 
> 
> Two comments on idnits:
> 
> (1) obsolete reference:
> 
>   -- Obsolete informational reference (is this intentional?): RFC 5143
>      (Obsoleted by RFC 4842)
> 
> This is on purpose as we are following what is in:
> https://www.iana.org/assignments/pwe3-parameters/pwe3-
> parameters.xhtml#pwe3-parameters-2.
> 
> (2) long lines:
> 
> idnits is clean when I run it prior to submission:
> 
> ==
> 
>   Checking nits according to https://www.ietf.org/id-info/checklist :
>   ------------------------------------------------------------------------
> ----
> 
>      No issues found here.
> ==
> 
> However, the datatracker displays the following after submission:
> 
> ==
>   Checking nits according to https://www.ietf.org/id-info/checklist :
>   ------------------------------------------------------------------------
> ----
> 
>   ** There are 132 instances of too long lines in the document, the
> longest
>      one being 3 characters in excess of 72.
> ==
> 
> Will see how to fix this.
> 
> Cheers,
> Med
> 
> 
> > -----Message d'origine-----
> > De : Adrian Farrel <adrian@olddog.co.uk> Envoyé : lundi 1 novembre
> > 2021 13:57 À : 'tom petch' <ietfc@btconnect.com>; BOUCADAIR Mohamed
> > INNOV/NET <mohamed.boucadair@orange.com>; opsawg@ietf.org Objet : RE:
> > I-D Action: draft-ietf-opsawg-l2nm-09.txt
> >
> > Useful comments, thanks Tom.
> >
> > Authors, please run idnits and fix issues. Also address Tom's comments.
> >
> > I'll be doing my shepherd review this week. Hopefully you can post a
> > new revision when the gates open next Monday.
> >
> > Cheers,
> > Adrian
> >
> > -----Original Message-----
> > From: tom petch <ietfc@btconnect.com>
> > Sent: 01 November 2021 12:48
> > To: mohamed.boucadair@orange.com; opsawg@ietf.org
> > Cc: adrian@olddog.co.uk
> > Subject: Re: I-D Action: draft-ietf-opsawg-l2nm-09.txt
> >
> > From: OPSAWG <opsawg-bounces@ietf.org> on behalf of
> > mohamed.boucadair@orange.com <mohamed.boucadair@orange.com>
> > Sent: 20 October 2021 09:49
> > Hi all,
> >
> > After discussing with Adrian, we are publishing this version that
> > addresses a recent comment from Julian. For more context, please refer
> > to https://github.com/IETF-OPSAWG-WG/lxnm/issues/350.
> >
> > <tp>
> > Some stray thoughts
> >
> > some lines are 90 characters long
> >
> > 802.1ah is referenced but not in I-D References 802.3ah ditto 802.1ag
> > Amendment 5 looks like a separate document warranting a separate
> > reference 802.1p is referenced implicitly 802.1Q likewise
> >
> > What is the difference between
> > identity bgp-l2encaps-type
> >   Base BGP L2 encapsulation type
> >      and
> > identity iana-pw-types
> >  Base BGP L2 encapsulation type
> >
> > ccm-priority-type
> > what is high what low?
> >
> > Local Maintenance End Point (MEP)
> > This is not the expansion used by the ITU-T
> >
> > leaf split-horizon-filtering
> > what does true mean?
> >
> > leaf ccm-interval
> > no units
> >
> > leaf ccm-holdtime
> > no units
> >
> > leaf duplicate-ip-detection-interval
> > no units
> >
> > leaf duplicate-ip-detection-interval
> > no units
> >
> >
> > Tom Petch
> >
> > Cheers,
> > Med
> >
> > > -----Message d'origine-----
> > > De : I-D-Announce <i-d-announce-bounces@ietf.org> De la part de
> > > internet- drafts@ietf.org Envoyé : mercredi 20 octobre 2021 10:34 À :
> > > i-d-announce@ietf.org Cc : opsawg@ietf.org Objet : I-D Action:
> > > draft-ietf-opsawg-l2nm-09.txt
> > >
> > >
> > > A New Internet-Draft is available from the on-line Internet-Drafts
> > > directories.
> > > This draft is a work item of the Operations and Management Area
> > > Working Group WG of the IETF.
> > >
> > >         Title           : A Layer 2 VPN Network YANG Model
> > >         Authors         : Samier Barguil
> > >                           Oscar Gonzalez de Dios
> > >                           Mohamed Boucadair
> > >                           Luis Angel Munoz
> > >       Filename        : draft-ietf-opsawg-l2nm-09.txt
> > >       Pages           : 155
> > >       Date            : 2021-10-20
> > >
> > > Abstract:
> > >    This document defines an L2VPN Network YANG Model (L2NM) that can
> be
> > >    used to manage the provisioning of Layer 2 Virtual Private Network
> > >    (VPN) services within a network (e.g., service provider network).
> > >    The L2NM complements the Layer 2 Service Model (L2SM) by providing
> a
> > >    network-centric view of the service that is internal to a service
> > >    providers.  The L2NM is particularly meant to be used by a network
> > >    controller to derive the configuration information that will be
> sent
> > >    to relevant network devices.
> > >
> > >    Also, the document defines the initial versions of two IANA-
> > >    maintained modules that defines a set of identities of BGP Layer 2
> > >    encapsulation types and pseudowire types.
> > >
> > >
> > > The IETF datatracker status page for this draft is:
> > > https://datatracker.ietf.org/doc/draft-ietf-opsawg-l2nm/
> > >
> > > There is also an htmlized version available at:
> > > https://datatracker.ietf.org/doc/html/draft-ietf-opsawg-l2nm-09
> > >
> > > A diff from the previous version is available at:
> > > https://www.ietf.org/rfcdiff?url2=draft-ietf-opsawg-l2nm-09
> > >
> > >
> > > Internet-Drafts are also available by anonymous FTP at:
> > > ftp://ftp.ietf.org/internet-drafts/
> > >
> > >
> > > _______________________________________________
> > > I-D-Announce mailing list
> > > I-D-Announce@ietf.org
> > > https://www.ietf.org/mailman/listinfo/i-d-announce
> > > Internet-Draft directories: http://www.ietf.org/shadow.html or
> > > ftp://ftp.ietf.org/ietf/1shadow-sites.txt
> >
> > ______________________________________________________________________
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> > __
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> 
> __________________________________________________________________________
> _______________________________________________
> 
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a l'expediteur et le detruire ainsi que les pieces jointes. Les messages electroniques etant susceptibles d'alteration,
Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci.

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they should not be distributed, used or copied without authorisation.
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