Hi Lada,

I still think that it makes sense to do YANG Next, on the assumption that it 
will take a couple of years to work out, maybe longer if the work doesn't 
properly get started until the YANG versioning work has progressed further.

When I look at the YANG Next issue list, I think that there are quite a lot of 
things on that list (some of which are quite small) that would be good to do, 
and will help modelling efforts.

Thanks,
Rob


-----Original Message-----
From: netmod <[email protected]> On Behalf Of Ladislav Lhotka
Sent: 23 July 2019 12:03
To: NETMOD WG <[email protected]>
Subject: [netmod] YANG next

Hi,

this morning I attended the side meeting "Next Step of IETF YANG". I was 
somewhat misled into thinking that it would be about future evolution of YANG 
the language, which was not the case at all. However, my personal conclusion 
from the meeting is that it would be a total disaster to throw in a new version 
of YANG within the next few years or so.

The operators and equipment vendors are busy putting together YANG modules and 
tools, filling the gaps, coping with NMDA, schema mount, IETF versus OpenConfig 
etc. A new YANG version (and modules written in it) would IMO be extremely 
counter-productive at this rather turbulent stage.

So, if we want to continue the yang-next discussion, I think we first have to 
figure out how to evolve YANG without making waves in the current YANG pond and 
let the operators and vendors do their work, without which YANG can never 
succeed.

Lada

--
Ladislav Lhotka
Head, CZ.NIC Labs
PGP Key ID: 0xB8F92B08A9F76C67

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