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Re: [OPSAWG] Suresh Krishnan's No Objection on draft-ietf-opsawg-nat-yang-16: (with COMMENT)

Suresh Krishnan <Suresh@kaloom.com> Wed, 26 September 2018 13:26 UTC

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From: Suresh Krishnan <Suresh@kaloom.com>
To: Mohamed Boucadair <mohamed.boucadair@orange.com>
CC: The IESG <iesg@ietf.org>, "opsawg@ietf.org" <opsawg@ietf.org>, "draft-ietf-opsawg-nat-yang@ietf.org" <draft-ietf-opsawg-nat-yang@ietf.org>, "opsawg-chairs@ietf.org" <opsawg-chairs@ietf.org>
Thread-Topic: [OPSAWG] Suresh Krishnan's No Objection on draft-ietf-opsawg-nat-yang-16: (with COMMENT)
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Date: Wed, 26 Sep 2018 13:26:29 +0000
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Subject: Re: [OPSAWG] Suresh Krishnan's No Objection on draft-ietf-opsawg-nat-yang-16: (with COMMENT)
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Hi Med,

> On Sep 26, 2018, at 12:47 AM, <mohamed.boucadair@orange.com> <mohamed.boucadair@orange.com> wrote:
> 
> Hi Suresh, 
> 
> Adding that default value would make sense if port restriction is only reserved to NATs deployed in combination with MAP-E BRs. The document does not make that assumption.

Are there any other expected consumers for this feature (other than MAP-E)? An example would be great. I would think the offset bits (for the system port exclusion) and the PSID are fairly specific for MAP-E. If there are other consumers, how do you ensure that  the value of the ‘a’ bits (i.e. A) needs to be greater than zero since I assumed the A>0 check will be done by the MAP-E implementation.

Thanks
Suresh

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