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Re: [netmod] Obsolete feature - what does it mean?

"Rob Wilton (rwilton)" <rwilton@cisco.com> Thu, 28 February 2019 09:40 UTC

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From: "Rob Wilton (rwilton)" <rwilton@cisco.com>
To: Randy Presuhn <randy_presuhn@alumni.stanford.edu>, "netmod@ietf.org" <netmod@ietf.org>
Thread-Topic: [netmod] Obsolete feature - what does it mean?
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Date: Thu, 28 Feb 2019 09:40:54 +0000
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Subject: Re: [netmod] Obsolete feature - what does it mean?
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Hi Randy,

Please see inline with [RW] ...

-----Original Message-----
From: netmod <netmod-bounces@ietf.org> On Behalf Of Randy Presuhn
Sent: 27 February 2019 18:42
To: netmod@ietf.org
Subject: Re: [netmod] Obsolete feature - what does it mean?

Hi -

On 2/27/2019 10:17 AM, Kent Watsen wrote:
...
> If so, then there should be a way for the server to indicate which 
> discretionary choices it made.   I'd suggest that "obsolete" defaults 
> to "not-implemented" and thus only servers that want to continue 
> support for the node need to indicate anything.  A deviation would be 
> a good fit for this.

Are you saying that legacy boxes sitting in dark closets would somehow be updated to provide this indication?

[RW] 
Actually, I don't think that would be required.  Obsoleting a node requires a new revision of the YANG module, so it only depends on which revision of the YANG model is implemented by the device.  Hence, if you update the legacy box to use the new YANG module which now contains status obsolete nodes, that you should also update the legacy box software at the same time to not implement the obsoleted nodes.

Thanks,
Rob


Randy

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