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Re: [i2rs] Kathleen Moriarty's No Objection on draft-ietf-i2rs-yang-l3-topology-08: (with COMMENT)

Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de> Wed, 25 January 2017 14:52 UTC

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Date: Wed, 25 Jan 2017 15:52:17 +0100
From: Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
To: Alia Atlas <akatlas@gmail.com>
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Mail-Followup-To: Alia Atlas <akatlas@gmail.com>, Lou Berger <lberger@labn.net>, draft-ietf-i2rs-yang-l3-topology@ietf.org, "i2rs@ietf.org" <i2rs@ietf.org>, "iesg@ietf.org" <iesg@ietf.org>
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Subject: Re: [i2rs] Kathleen Moriarty's No Objection on draft-ietf-i2rs-yang-l3-topology-08: (with COMMENT)
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On Wed, Jan 25, 2017 at 08:35:53AM -0500, Alia Atlas wrote:
> Could one of you who are saying that a writable topology model can appear
> in the regular configuration data-store please explain:
> 
> How does validation at reboot work when there is dependency on learned
> topology data that isn't yet available?

A configuration datastore never has a dependency on state data.
Validation is scoped by a datastore. A configuration datastore that is
valid before a report is going to be valid after a reboot. These are
core principles of how NETCONF and YANG work.

For the larger picture how information flows from configuration
datastores to the actual operational state, see the conceptual
datastore discussions in NETMOD.
 
/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/>

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