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In-Reply-To: <bce9a04329d7431480b1b0f66d648317@swisscom.com>
From: Andy Bierman <andy@yumaworks.com>
Date: Sun, 16 Jun 2024 07:45:54 -0700
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Subject: =?utf-8?q?=5Bnetconf=5D_Re=3A_FW=3A_New_Version_Notification_for_draft-ietf-?=
	=?utf-8?q?netconf-yang-notifications-versioning-05=2Etxt?=
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On Sun, Jun 16, 2024 at 7:07=E2=80=AFAM <Thomas.Graf@swisscom.com> wrote:

> Dear NETCONF working group,
>
>
>
> We updated the document to version -05 with the following changes:
>
>
>
>    - Resolved YANG modeling issue that within a "case" statement
>    identifiers need to be unique (
>    https://datatracker.ietf.org/doc/html/rfc7950#section-7.9.2).
>
>
>
> Thanks to J=C3=A9r=C3=A9mie Leska from 6Wind for reporting this issue dur=
ing
> implementation.
>
>
>
> Implementation will be validated at the next IETF 120 hackathon.
>
>
>
> Feedback and comments welcome.
>
>
>


I do not understand why the Orchestrator (in the message broker diagram)
cannot simply read the YANG library
of the server and check the revision date of the module.

I do not see how a single node (e.e. /foo) is sufficient to check.
In a common use-case, like interface-state, there are many modules that
augment the interface list entry.

The YANG library cannot be broken into some set of sub-contracts.
There is one contract that is described by the correct application of the
data definitions, supported features, and applied deviations.
A [module-name, revision-date] tuple does not even correctly specify a
contract subset.


> Best wishes
>
> Thomas
>

Andy


>
>
> -----Original Message-----
> From: internet-drafts@ietf.org <internet-drafts@ietf.org>
> Sent: Sunday, June 16, 2024 4:02 PM
> To: Alex Feng <alex.huang-feng@insa-lyon.fr>; Alex Huang Feng <
> alex.huang-feng@insa-lyon.fr>; Benoit Claise <benoit.claise@huawei.com>;
> Graf Thomas, INI-NET-VNC-HCS <Thomas.Graf@swisscom.com>
> Subject: New Version Notification for
> draft-ietf-netconf-yang-notifications-versioning-05.txt
>
>
>
>
>
> Be aware: This is an external email.
>
>
>
>
>
>
>
> A new version of Internet-Draft
>
> draft-ietf-netconf-yang-notifications-versioning-05.txt has been
> successfully submitted by Thomas Graf and posted to the IETF repository.
>
>
>
> Name:     draft-ietf-netconf-yang-notifications-versioning
>
> Revision: 05
>
> Title:    Support of Versioning in YANG Notifications Subscription
>
> Date:     2024-06-16
>
> Group:    netconf
>
> Pages:    26
>
> URL:
> https://www.ietf.org/archive/id/draft-ietf-netconf-yang-notifications-ver=
sioning-05.txt
>
> Status:
> https://datatracker.ietf.org/doc/draft-ietf-netconf-yang-notifications-ve=
rsioning/
>
> HTMLized:
> https://datatracker.ietf.org/doc/html/draft-ietf-netconf-yang-notificatio=
ns-versioning
>
> Diff:
> https://author-tools.ietf.org/iddiff?url2=3Ddraft-ietf-netconf-yang-notif=
ications-versioning-05
>
>
>
> Abstract:
>
>
>
>    This document extends the YANG notifications subscription mechanism
>
>    to specify the YANG module semantic version at the subscription.
>
>    Then, a new extension with the revision and the semantic version of
>
>    the YANG push subscription state change notification is proposed.
>
>
>
>
>
>
>
> The IETF Secretariat
>
>
>
>
> _______________________________________________
> netconf mailing list -- netconf@ietf.org
> To unsubscribe send an email to netconf-leave@ietf.org
>

--0000000000008c9a48061b02e8a8
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<div dir=3D"ltr"><div dir=3D"ltr"><br></div><br><div class=3D"gmail_quote">=
<div dir=3D"ltr" class=3D"gmail_attr">On Sun, Jun 16, 2024 at 7:07=E2=80=AF=
AM &lt;<a href=3D"mailto:Thomas.Graf@swisscom.com">Thomas.Graf@swisscom.com=
</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:=
0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">=
<div class=3D"msg-5647776252521505884">





<div lang=3D"DE-CH" style=3D"overflow-wrap: break-word;">
<div class=3D"m_-5647776252521505884WordSection1">
<p class=3D"m_-5647776252521505884MsoPlainText">Dear NETCONF working group,=
<u></u><u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><u></u>=C2=A0<u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><span lang=3D"EN-US">We upd=
ated the document to version -05 with the following changes:<u></u><u></u><=
/span></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><span lang=3D"EN-US"><u></u=
>=C2=A0<u></u></span></p>
<ul style=3D"margin-top:0in" type=3D"disc">
<li class=3D"m_-5647776252521505884MsoPlainText"><span lang=3D"EN-US">Resol=
ved YANG modeling issue that within a &quot;case&quot; statement identifier=
s need to be unique (<a href=3D"https://datatracker.ietf.org/doc/html/rfc79=
50#section-7.9.2" target=3D"_blank">https://datatracker.ietf.org/doc/html/r=
fc7950#section-7.9.2</a>).<u></u><u></u></span></li></ul>
<p class=3D"m_-5647776252521505884MsoPlainText"><span lang=3D"EN-US"><u></u=
>=C2=A0<u></u></span></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><span lang=3D"EN-US">Thanks=
 to J=C3=A9r=C3=A9mie Leska from 6Wind for reporting this issue during impl=
ementation.
<u></u><u></u></span></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><span lang=3D"EN-US"><u></u=
>=C2=A0<u></u></span></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><span lang=3D"EN-US">Implem=
entation will be validated at the next IETF 120 hackathon.<u></u><u></u></s=
pan></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><span lang=3D"EN-US"><u></u=
>=C2=A0<u></u></span></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><span lang=3D"EN-US">Feedba=
ck and comments welcome.<u></u><u></u></span></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><span lang=3D"EN-US"><u></u=
>=C2=A0</span></p></div></div></div></blockquote><div><br></div><div><br></=
div><div>I do not understand why the Orchestrator (in the message broker di=
agram) cannot simply read the YANG library</div><div>of the server and chec=
k the revision date of the module.</div><div><br></div><div>I do not see ho=
w a single node (e.e. /foo) is sufficient to check.</div><div>In a common u=
se-case, like interface-state, there are many modules that augment the inte=
rface list entry.</div><div><br></div><div>The YANG library cannot be broke=
n into some set of sub-contracts.</div><div>There is one contract that is d=
escribed by the correct application of the</div><div>data definitions, supp=
orted features, and applied deviations.</div><div>A [module-name, revision-=
date] tuple does not even correctly specify a contract subset.</div><div>=
=C2=A0</div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0=
.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class=3D=
"msg-5647776252521505884"><div lang=3D"DE-CH" style=3D"overflow-wrap: break=
-word;"><div class=3D"m_-5647776252521505884WordSection1"><p class=3D"m_-56=
47776252521505884MsoPlainText"><span lang=3D"EN-US"><u></u></span></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><span lang=3D"EN-US">Best w=
ishes<u></u><u></u></span></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><span lang=3D"EN-US">Thomas=
</span></p></div></div></div></blockquote><div><br></div><div>Andy</div><di=
v>=C2=A0</div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px=
 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class=
=3D"msg-5647776252521505884"><div lang=3D"DE-CH" style=3D"overflow-wrap: br=
eak-word;"><div class=3D"m_-5647776252521505884WordSection1"><p class=3D"m_=
-5647776252521505884MsoPlainText"><span lang=3D"EN-US"><u></u><u></u></span=
></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><span lang=3D"EN-US"><u></u=
>=C2=A0<u></u></span></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><span lang=3D"EN-US">-----O=
riginal Message-----<br>
From: <a href=3D"mailto:internet-drafts@ietf.org" target=3D"_blank">interne=
t-drafts@ietf.org</a> &lt;<a href=3D"mailto:internet-drafts@ietf.org" targe=
t=3D"_blank">internet-drafts@ietf.org</a>&gt; <br>
Sent: Sunday, June 16, 2024 4:02 PM<br>
To: Alex Feng &lt;<a href=3D"mailto:alex.huang-feng@insa-lyon.fr" target=3D=
"_blank">alex.huang-feng@insa-lyon.fr</a>&gt;; Alex Huang Feng &lt;<a href=
=3D"mailto:alex.huang-feng@insa-lyon.fr" target=3D"_blank">alex.huang-feng@=
insa-lyon.fr</a>&gt;; Benoit Claise &lt;<a href=3D"mailto:benoit.claise@hua=
wei.com" target=3D"_blank">benoit.claise@huawei.com</a>&gt;; Graf Thomas, I=
NI-NET-VNC-HCS &lt;<a href=3D"mailto:Thomas.Graf@swisscom.com" target=3D"_b=
lank">Thomas.Graf@swisscom.com</a>&gt;<br>
Subject: New Version Notification for draft-ietf-netconf-yang-notifications=
-versioning-05.txt</span></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><u></u>=C2=A0<u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><u></u>=C2=A0<u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText">Be aware: This is an extern=
al email.<u></u><u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><u></u>=C2=A0<u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><u></u>=C2=A0<u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><u></u>=C2=A0<u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText">A new version of Internet-D=
raft<u></u><u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText">draft-ietf-netconf-yang-not=
ifications-versioning-05.txt has been successfully submitted by Thomas Graf=
 and posted to the IETF repository.<u></u><u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><u></u>=C2=A0<u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText">Name:=C2=A0=C2=A0=C2=A0=C2=
=A0 draft-ietf-netconf-yang-notifications-versioning<u></u><u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText">Revision: 05<u></u><u></u><=
/p>
<p class=3D"m_-5647776252521505884MsoPlainText">Title:=C2=A0=C2=A0=C2=A0 Su=
pport of Versioning in YANG Notifications Subscription<u></u><u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText">Date:=C2=A0=C2=A0=C2=A0=C2=
=A0 2024-06-16<u></u><u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText">Group:=C2=A0=C2=A0=C2=A0 ne=
tconf<u></u><u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText">Pages:=C2=A0=C2=A0=C2=A0 26=
<u></u><u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText">URL:=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0 <a href=3D"https://www.ietf.org/archive/id/draft-ietf-netconf-yan=
g-notifications-versioning-05.txt" target=3D"_blank">
<span style=3D"color:windowtext;text-decoration:none">https://www.ietf.org/=
archive/id/draft-ietf-netconf-yang-notifications-versioning-05.txt</span></=
a><u></u><u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText">Status:=C2=A0=C2=A0 <a href=
=3D"https://datatracker.ietf.org/doc/draft-ietf-netconf-yang-notifications-=
versioning/" target=3D"_blank">
<span style=3D"color:windowtext;text-decoration:none">https://datatracker.i=
etf.org/doc/draft-ietf-netconf-yang-notifications-versioning/</span></a><u>=
</u><u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText">HTMLized: <a href=3D"https:=
//datatracker.ietf.org/doc/html/draft-ietf-netconf-yang-notifications-versi=
oning" target=3D"_blank">
<span style=3D"color:windowtext;text-decoration:none">https://datatracker.i=
etf.org/doc/html/draft-ietf-netconf-yang-notifications-versioning</span></a=
><u></u><u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText">Diff:=C2=A0=C2=A0=C2=A0=C2=
=A0 <a href=3D"https://author-tools.ietf.org/iddiff?url2=3Ddraft-ietf-netco=
nf-yang-notifications-versioning-05" target=3D"_blank">
<span style=3D"color:windowtext;text-decoration:none">https://author-tools.=
ietf.org/iddiff?url2=3Ddraft-ietf-netconf-yang-notifications-versioning-05<=
/span></a><u></u><u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><u></u>=C2=A0<u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText">Abstract:<u></u><u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><u></u>=C2=A0<u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText">=C2=A0=C2=A0 This document =
extends the YANG notifications subscription mechanism<u></u><u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText">=C2=A0=C2=A0 to specify the=
 YANG module semantic version at the subscription.<u></u><u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText">=C2=A0=C2=A0 Then, a new ex=
tension with the revision and the semantic version of<u></u><u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText">=C2=A0=C2=A0 the YANG push =
subscription state change notification is proposed.<u></u><u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><u></u>=C2=A0<u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><u></u>=C2=A0<u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><u></u>=C2=A0<u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText">The IETF Secretariat<u></u>=
<u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><u></u>=C2=A0<u></u></p>
<p class=3D"m_-5647776252521505884MsoPlainText"><u></u>=C2=A0<u></u></p>
</div>
</div>

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