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Re: [I2nsf] Closing the WGLC for draft-ietf-i2nsf-capability-data-model-16

Linda Dunbar <linda.dunbar@futurewei.com> Thu, 29 April 2021 14:28 UTC

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From: Linda Dunbar <linda.dunbar@futurewei.com>
To: tom petch <ietfa@btconnect.com>, "i2nsf@ietf.org" <i2nsf@ietf.org>
Thread-Topic: [I2nsf] Closing the WGLC for draft-ietf-i2nsf-capability-data-model-16
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Date: Thu, 29 Apr 2021 14:27:51 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/i2nsf/UJo2Ztf_i68wCcdkonB3vSTKkw4>
Subject: Re: [I2nsf] Closing the WGLC for draft-ietf-i2nsf-capability-data-model-16
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Tom, 

What you suggested seems pretty simple to fix. Hope the authors will address them soon. 
p.s. the YANG doctor review  didn't mention using this style. 

Thank you very much. 

Linda

-----Original Message-----
From: tom petch <ietfa@btconnect.com> 
Sent: Thursday, April 29, 2021 5:24 AM
To: Linda Dunbar <linda.dunbar@futurewei.com>; i2nsf@ietf.org
Subject: Re: [I2nsf] Closing the WGLC for draft-ietf-i2nsf-capability-data-model-16

From: Linda Dunbar <linda.dunbar@futurewei.com>
Sent: 27 April 2021 16:49
Tom,

Can you please provide the concrete suggestions to the authors on the changes you like to see?

<tp>
Linda

I hope that you are still happy:-)

I thought some more (a bad habit of mine:-) about range and exact values and wonder why capability splits them into two separate identity.  This is not what the YANG modules say.

The usual way to model this is with a start and end and a comment that if only one value is required, then start equals end.  This is widely used throughout the IETF and is indeed used in draft-ietf-i2nsf-sdn-ipsec.... which has the approval of the IESG.  

So, since the YANG always AFAICT allows both range and exact value, then why split them in capability?  Not wrong, but seems an unnecessary complication adding some 25 extra identity.

I can imagine a chip designer saying I can exact match at wire speed but not range match; but as I say, that is not what we have in the YANG.  It could be in the YANG e.g. as a feature but isn't in any IETF YANG module that I know of so chip designers are probably cleverer than I imagine!

Tom Petch

This is the second time of the WGLC for the draft. It would be very helpful to hear your suggestions during the WGLC window.

Thank you very much
Linda

-----Original Message-----
From: tom petch <ietfa@btconnect.com>
Sent: Tuesday, April 27, 2021 10:44 AM
To: Linda Dunbar <linda.dunbar@futurewei.com>; i2nsf@ietf.org
Subject: Re: [I2nsf] Closing the WGLC for draft-ietf-i2nsf-capability-data-model-16

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