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Re: [tcpm] WG item adoption for draft-scharf-tcpm-yang-tcp-06

"Scharf, Michael" <Michael.Scharf@hs-esslingen.de> Wed, 19 August 2020 22:21 UTC

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From: "Scharf, Michael" <Michael.Scharf@hs-esslingen.de>
To: Lars Eggert <lars@eggert.org>, Yoshifumi Nishida <nsd.ietf@gmail.com>
CC: "tcpm@ietf.org Extensions" <tcpm@ietf.org>
Thread-Topic: [tcpm] WG item adoption for draft-scharf-tcpm-yang-tcp-06
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Date: Wed, 19 Aug 2020 22:20:59 +0000
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Subject: Re: [tcpm] WG item adoption for draft-scharf-tcpm-yang-tcp-06
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Hi Lars,

> -----Original Message-----
> From: tcpm <tcpm-bounces@ietf.org> On Behalf Of Lars Eggert
> Sent: Tuesday, August 18, 2020 10:32 AM
> To: Yoshifumi Nishida <nsd.ietf@gmail.com>
> Cc: tcpm@ietf.org Extensions <tcpm@ietf.org>
> Subject: Re: [tcpm] WG item adoption for draft-scharf-tcpm-yang-tcp-06
> 
> Hi,
> 
> On 2020-8-3, at 11:04, Yoshifumi Nishida <nsd.ietf@gmail.com> wrote:
> > 2: if you hummed for not adopting the draft, please share your opinion.
> This will be a very helpful input for us.
> 
> I shared my opinion on this in the past, and it hasn't changed.

... but the document has changed significantly since the past discussions, amongst others to address your pushback.

Can you be a bit more specific regarding your concerns, specifically considering draft-scharf-tcpm-yang-tcp-06?

The latest version -06 is quite short and has a narrow scope to address the most obvious use cases for a TCP YANG model, most notably TCP-AO in IDR. Other than that, -06 basically just documents how the information in the TCP MIB can be modeled in YANG. The TCP MIB is used by several TCP implementations as basis for basic stats (as discussed previously). And I guess it is IETF consensus that YANG is a better alternative for data models. As usual, a document proposed for WG adoption is not final, but the authors believe that the model in draft-scharf-tcpm-yang-tcp-06 is already in a decent shape.

As a result, it is a bit difficult to understand why such a narrow-scoped document should not be doable with reasonable effort in TCPM.

Michael (as author)

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