Re: [YANG] how to signal revision?

Ladislav Lhotka <lhotka@cesnet.cz> Wed, 16 January 2008 13:54 UTC

Return-path: <yang-bounces@ietf.org>
Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1JF8ib-00041P-Ss; Wed, 16 Jan 2008 08:54:13 -0500
Received: from yang by megatron.ietf.org with local (Exim 4.43) id 1JF8ia-0003xo-Mh for yang-confirm+ok@megatron.ietf.org; Wed, 16 Jan 2008 08:54:12 -0500
Received: from [10.90.34.44] (helo=chiedprmail1.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1JF8ia-0003xf-CF for yang@ietf.org; Wed, 16 Jan 2008 08:54:12 -0500
Received: from office2.cesnet.cz ([195.113.144.244]) by chiedprmail1.ietf.org with esmtp (Exim 4.43) id 1JF8iZ-0002XL-Ov for yang@ietf.org; Wed, 16 Jan 2008 08:54:12 -0500
Received: from [172.29.2.201] (asus-gx.lhotka.cesnet.cz [195.113.161.161]) by office2.cesnet.cz (Postfix) with ESMTP id 53C33D80098 for <yang@ietf.org>; Wed, 16 Jan 2008 14:54:11 +0100 (CET)
Subject: Re: [YANG] how to signal revision?
From: Ladislav Lhotka <lhotka@cesnet.cz>
To: yang@ietf.org
In-Reply-To: <478E08CC.5040901@ericsson.com>
References: <1200478981.7029.27.camel@missotis> <20080116.123549.140000433.mbj@tail-f.com> <1200485337.7029.43.camel@missotis> <478DF9B5.40006@ericsson.com> <1200489477.7029.92.camel@missotis> <478E08CC.5040901@ericsson.com>
Content-Type: text/plain; charset=utf-8
Organization: CESNET
Date: Wed, 16 Jan 2008 14:54:11 +0100
Message-Id: <1200491651.7029.106.camel@missotis>
Mime-Version: 1.0
X-Mailer: Evolution 2.12.1
Content-Transfer-Encoding: quoted-printable
X-Spam-Score: 0.0 (/)
X-Scan-Signature: 2409bba43e9c8d580670fda8b695204a
X-BeenThere: yang@ietf.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: YANG modeling Language for NETCONF <yang.ietf.org>
List-Unsubscribe: <https://www1.ietf.org/mailman/listinfo/yang>, <mailto:yang-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www1.ietf.org/pipermail/yang>
List-Post: <mailto:yang@ietf.org>
List-Help: <mailto:yang-request@ietf.org?subject=help>
List-Subscribe: <https://www1.ietf.org/mailman/listinfo/yang>, <mailto:yang-request@ietf.org?subject=subscribe>
Errors-To: yang-bounces@ietf.org

Balazs Lengyel píše v St 16. 01. 2008 v 14:38 +0100:
> So we have two combinations
> 1) old manager new node (my case)
> 2) new manager old node

Right, compatibility means a different thing in each case.
 
> 
> Both are interesting questions.
> YANG's primary aim is to define what model the node provides, so I think we should define here 
> what is a compatible change in the node's model.

Yup, as Martin pointed out, one can assume the manager is more flexible
and should be able to handle gracefully weird data received from the
node, provided it knows the node uses a new data model that the manager
doesn't support.

Lada


> 
-- 
Ladislav Lhotka, CESNET
PGP Key ID: E74E8C0C



_______________________________________________
YANG mailing list
YANG@ietf.org
https://www1.ietf.org/mailman/listinfo/yang