Re: [lp-wan] augment coupond-ack
"Eric Vyncke (evyncke)" <evyncke@cisco.com> Mon, 15 November 2021 08:32 UTC
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From: "Eric Vyncke (evyncke)" <evyncke@cisco.com>
To: Laurent Toutain <laurent.toutain@imt-atlantique.fr>, Alexander Pelov
<a@ackl.io>
CC: lp-wan <lp-wan@ietf.org>
Thread-Topic: [lp-wan] augment coupond-ack
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Date: Mon, 15 Nov 2021 08:32:08 +0000
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Subject: Re: [lp-wan] augment coupond-ack
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And without any hat except some familiarity with YANG, I also support the approach of having the data model pristine and let the YANG augmentation in the compound-ack I-D -éric From: lp-wan <lp-wan-bounces@ietf.org> on behalf of Laurent Toutain <laurent.toutain@imt-atlantique.fr> Date: Monday, 15 November 2021 at 09:30 To: Alexander Pelov <a@ackl.io> Cc: lp-wan <lp-wan@ietf.org> Subject: Re: [lp-wan] augment coupond-ack yes On Mon, Nov 15, 2021 at 9:08 AM Alexander Pelov <a@ackl.io<mailto:a@ackl.io>> wrote: Dear Laurent, Thanks for getting the ball rolling on this one so quickly after the IETF! On 1) - when you say "ignore the compound-ack from RFC8724" - there is no compound-ack in RFC8724. Do you mean this to be - keep the Yang Data Model aligned with RFC8724 and not include compound-ack in it? (and thus -> define an extension in the SCHC-Compound-Ack draft ?) Cheers, Alex On Mon, Nov 15, 2021 at 8:51 AM Laurent Toutain <laurent.toutain@imt-atlantique.fr<mailto:laurent.toutain@imt-atlantique.fr>> wrote: Dear lpwaners, During the last IETF meeting, it was asked to detach the compound-ack from the RFC8724 model. I see to ways of doing it. 1) ignore completely the compound-ack from the RFC8724 data model and augment this model such as: augment "/schc:schc/schc:rule/schc:nature/schc:fragmentation/schc:mode/schc:ack-on-error" { leaf bitmap-format { type compound-ack:bitmap-format-type; when "derived-from(../schc:fragmentation-mode, 'schc:fragmentation-mode-ack-on-error')"; default "compound-ack:bitmap-RFC8724"; description "How the bitmaps are included in the Ack message."; } } Where we create the leaf and a specific identityref for compound-ack. 2) create the leaf in RFC8724 datamodel but just a default value and just define the compound ack value in the compound ack model. Personally, I prefer the first approach, since we cannot guess all the time what will be extended, but I would like to have your point of view on the subject. Laurent _______________________________________________ lp-wan mailing list lp-wan@ietf.org<mailto:lp-wan@ietf.org> https://www.ietf.org/mailman/listinfo/lp-wan
- [lp-wan] augment coupond-ack Laurent Toutain
- Re: [lp-wan] augment coupond-ack Alexander Pelov
- Re: [lp-wan] augment coupond-ack Laurent Toutain
- Re: [lp-wan] augment coupond-ack Eric Vyncke (evyncke)
- Re: [lp-wan] augment coupond-ack Alexander Pelov
- Re: [lp-wan] augment coupond-ack Pascal Thubert (pthubert)
- Re: [lp-wan] augment coupond-ack Laurent Toutain