Re: [netmod] WG adoption poll draft-bjorklund-netmod-rfc7227bis-00

Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de> Thu, 21 September 2017 17:59 UTC

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Date: Thu, 21 Sep 2017 19:59:35 +0200
From: Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
To: Ladislav Lhotka <lhotka@nic.cz>
Cc: netmod@ietf.org
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Subject: Re: [netmod] WG adoption poll draft-bjorklund-netmod-rfc7227bis-00
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On Thu, Sep 21, 2017 at 05:10:52PM +0200, Ladislav Lhotka wrote:
> 
> I can imagine a tool collecting data from a number of devices that fails if a
> mandatory state data are absent.  
>

This is not a very robust tool. There are other reasons why a leaf may
be absert, e.g., an access control rule. In general, there is no
requirement that state data is reported as consistent snapshots, so
robust tools will have to be somewhat tolerant anyway.

> I could likewise expect the server to be prepared to deal with unexpected
> inconsistencies in config data. The data model is a contract, so it should be
> binding for both parties.

The server is prepared; it fails the commit if configuration data is
unexpectedly inconsistent.

/js

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