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[netmod] Re: Yang Scalability

"Deepak Rajaram (Nokia)" <deepak.rajaram@nokia.com> Thu, 25 July 2024 13:30 UTC

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From: "Deepak Rajaram (Nokia)" <deepak.rajaram@nokia.com>
To: Jürgen Schönwälder <jschoenwaelder@constructor.university>, "Robert Peschi (Nokia)" <robert.peschi=40nokia.com@dmarc.ietf.org>
Thread-Topic: [netmod] Re: Yang Scalability
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Date: Thu, 25 Jul 2024 13:29:57 +0000
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Hi Jürgen,



I see yang-next issue #18 was marked in "not now" bucket back in 2019, I feel that as NC/Y is being adopted more and more as the preferred interface(embedded/cloud), I believe this might be a good opportunity/time to start discussing this important point as scalability becomes more imminent as industry and products evolves. Ie: much earlier than yang-next



Regards,

Deepak



-----Original Message-----
From: Jürgen Schönwälder <jschoenwaelder@constructor.university>
Sent: Thursday, July 25, 2024 3:13 PM
To: Robert Peschi (Nokia) <robert.peschi=40nokia.com@dmarc.ietf.org>
Cc: Italo Busi <Italo.Busi=40huawei.com@dmarc.ietf.org>; netmod@ietf.org
Subject: [netmod] Re: Yang Scalability



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On Thu, Jul 25, 2024 at 08:01:27AM +0000, Robert Peschi (Nokia) wrote:

>

> Using templates also means transmitting much less data from the client to the device server, e.g. during a copy-config. Naturally, this would accordingly reduce protocol transmission penalty. It also greatly reduces the footprint of the running data store on the persistent memory of the device.

>



Configuation templates were left out of standardization many years ago.  There was no interest to standardize configuration templates (perhaps companies needed ways to distinguish products or finding agreement on a standard template format was considered too hard and time consuming or ...). RFC 8342 (published March 2018) acknowledges the existence of configuration template mechanisms but also notes that they are proprietary:



   o  Some implementations have proprietary mechanisms that allow

      clients to define configuration templates in <running>.  These

      templates are expanded automatically by the system, and the

      resulting configuration is applied internally.



The question is whether it is possible now (starting in 2024) to define a standard configuration template mechanism that has a chance to be implemented widely. See also the YANG next issue #18 (opened on 2017-03-17).



/js



--

Jürgen Schönwälder              Constructor University Bremen gGmbH

Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany



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