Re: [netmod] [Netconf] LC of NDMA NETCONF/RESTCONF drafts

Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de> Thu, 08 February 2018 19:00 UTC

Return-Path: <j.schoenwaelder@jacobs-university.de>
X-Original-To: netmod@ietfa.amsl.com
Delivered-To: netmod@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 9447412D810; Thu, 8 Feb 2018 11:00:12 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.909
X-Spam-Level:
X-Spam-Status: No, score=-1.909 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, T_RP_MATCHES_RCVD=-0.01, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id n2ETgmavTY2f; Thu, 8 Feb 2018 11:00:11 -0800 (PST)
Received: from atlas5.jacobs-university.de (atlas5.jacobs-university.de [212.201.44.20]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id A4C42126E3A; Thu, 8 Feb 2018 11:00:10 -0800 (PST)
Received: from localhost (demetrius5.irc-it.jacobs-university.de [10.70.0.222]) by atlas5.jacobs-university.de (Postfix) with ESMTP id 6CE2AA24; Thu, 8 Feb 2018 20:00:09 +0100 (CET)
X-Virus-Scanned: amavisd-new at jacobs-university.de
Received: from atlas5.jacobs-university.de ([10.70.0.217]) by localhost (demetrius5.jacobs-university.de [10.70.0.222]) (amavisd-new, port 10032) with ESMTP id s7gjWhdj_H8h; Thu, 8 Feb 2018 20:00:08 +0100 (CET)
Received: from hermes.jacobs-university.de (hermes.jacobs-university.de [212.201.44.23]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "hermes.jacobs-university.de", Issuer "Jacobs University CA - G01" (verified OK)) by atlas5.jacobs-university.de (Postfix) with ESMTPS; Thu, 8 Feb 2018 20:00:09 +0100 (CET)
Received: from localhost (demetrius3.jacobs-university.de [212.201.44.48]) by hermes.jacobs-university.de (Postfix) with ESMTP id 48A4C2014E; Thu, 8 Feb 2018 20:00:09 +0100 (CET)
X-Virus-Scanned: amavisd-new at jacobs-university.de
Received: from hermes.jacobs-university.de ([212.201.44.23]) by localhost (demetrius3.jacobs-university.de [212.201.44.32]) (amavisd-new, port 10024) with ESMTP id RekJTNGvzsaR; Thu, 8 Feb 2018 20:00:08 +0100 (CET)
Received: from elstar.local (unknown [10.50.231.133]) by hermes.jacobs-university.de (Postfix) with ESMTP id C98522014B; Thu, 8 Feb 2018 20:00:08 +0100 (CET)
Received: by elstar.local (Postfix, from userid 501) id B12DB423EADC; Thu, 8 Feb 2018 20:00:08 +0100 (CET)
Date: Thu, 8 Feb 2018 20:00:08 +0100
From: Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
To: Andy Bierman <andy@yumaworks.com>
Cc: Martin Bjorklund <mbj@tail-f.com>, Netconf <netconf@ietf.org>, NetMod WG <netmod@ietf.org>
Message-ID: <20180208190008.qrmavfup43mxsrq4@elstar.local>
Reply-To: Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
Mail-Followup-To: Andy Bierman <andy@yumaworks.com>, Martin Bjorklund <mbj@tail-f.com>, Netconf <netconf@ietf.org>, NetMod WG <netmod@ietf.org>
References: <CABCOCHSUWGKOH2JJA3TrRRJrvgwmmFRPs8cmOtPg0YKcY9=tsg@mail.gmail.com> <a0b9c4ba-a54d-f26e-3c09-1c2a92df58dd@cisco.com> <CABCOCHR34ovCHumyTKXOYzJcU3WM1kt-EnpxxtGLS2kLUPtECA@mail.gmail.com> <20180207.192803.834988416883038576.mbj@tail-f.com> <CABCOCHR95zL=AZ-LLq_1FsCff9dgUKP5_33uY7W7OMd8tdfb3w@mail.gmail.com> <20180208073617.yico4gvfrl6xdusw@elstar.local> <CABCOCHT6RNQqOn+gkk9CepwFTu5DSTAF768++-g3YmrXfKRxCg@mail.gmail.com> <20180208184453.m4j7scytf3lmqkvd@elstar.local> <CABCOCHQwochvHDt1cWW6yifgjvLL9oMv1gh8EvJdnVfM=7Sj=Q@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <CABCOCHQwochvHDt1cWW6yifgjvLL9oMv1gh8EvJdnVfM=7Sj=Q@mail.gmail.com>
User-Agent: NeoMutt/20171215
Archived-At: <https://mailarchive.ietf.org/arch/msg/netmod/S0X6LaqPyK5DratPR2ob4Ii5PkI>
Subject: Re: [netmod] [Netconf] LC of NDMA NETCONF/RESTCONF drafts
X-BeenThere: netmod@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: NETMOD WG list <netmod.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/netmod>, <mailto:netmod-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/netmod/>
List-Post: <mailto:netmod@ietf.org>
List-Help: <mailto:netmod-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/netmod>, <mailto:netmod-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 08 Feb 2018 19:00:12 -0000

On Thu, Feb 08, 2018 at 10:55:53AM -0800, Andy Bierman wrote:
> On Thu, Feb 8, 2018 at 10:44 AM, Juergen Schoenwaelder <
> j.schoenwaelder@jacobs-university.de> wrote:
> 
> > On Thu, Feb 08, 2018 at 09:11:58AM -0800, Andy Bierman wrote:
> > > >
> > > Then remove the text that says an error is sent if with-defaults
> > attempted
> > > on <operational>.
> > > None of this new text needs to go into NMDA. It can be a vendor-specific
> > > mystery what gets set as origin=default.  Implementors can read RFC 6243
> > > and figure it out on their own.
> >
> > As I said, I am absolutely fine with the option of being silent about
> > with-defaults and if needed someone can spin an update of RFC 6243.
> 
> This is not needed.
> 
> 
>    If the "with-defaults" parameter
>    is present in a request to such a datastore, then the server MUST
> 
>       return an error, as specified in "ietf-netconf-nmda" (see Section 4
> <https://tools.ietf.org/html/draft-ietf-netconf-nmda-netconf-03#section-4>).
> 
> 
>          The 'with-defaults' parameter does not apply to operational
>          datastores. If the 'with-defaults' parameter is present in a
>          request to an operational datastore, then the server MUST
>          return an <rpc-error> element with an <error-tag> value of
>          'invalid-value'.";
> 
> 
> 
> There are 2 places in the draft that say MUST send an error.
> You need to add detailed text explaining what "harm to the Internet"
> is caused if this parameter is accepted. You cannot use MUST
> unless interoperability is harmed by allowing a server to
> omit response data containing the YANG default value.
> Please explain all the problems solved by this MUST constraint.
> 
> 
> Please explain in detail in the draft WHY
> 
>          The 'with-defaults' parameter does not apply to operational
>          datastores.
> 
> This assertion is false.

I don't get your message. Trying again: I am fine to remove all text
that talks about with-default and if needed someone can spin an update
of RFC 6243 to use with-default.

/js

-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
Fax:   +49 421 200 3103         <https://www.jacobs-university.de/>