> On Apr 1, 2026, at 5:13 AM, Job Snijders <[email protected]> wrote: > > Dear Acee, > > On Fri, Mar 27, 2026 at 07:08:34PM -0400, Acee Lindem wrote: >>> The document shepherd write-up is deficient. In answer to question 4 (For >>> protocol documents, are there existing implementations of the contents of >>> the >>> document? ) it says "N/A". But this is a Standards Track protocol document. >>> YANG models are implementable and it would give significant credence to the >>> completeness of this specification if this question had been answered with >>> implementation details. (Of course, it would have been even better to see an >>> Implementation Status section in the document.) >>> >>> It remains up to the WG and AD whether to pursue publication of an >>> unimplemented YANG model. >> >> I'm not sure where you've been over the last ten years, but the IETF >> YANG models have not been widely implemented. In LSR, we have chosen to >> publish them without requiring implementation. > > It is concerning to read this practise has been going on for many years > already, however it being a tradition does not equate it being a good > practise. > > How does the WG know that the models are implementable, or even > operationally relevant? > > The problem I see is that the LSR WG might take up review/editorial/IESG > resources with their requests for RFC publication for documents that > later on are discovered to be unimplementable works of fiction. What > exactly is the purpose of rough consensus without running code? > > If the goal is to positively inspire vendors to copy parts of these > unimplemented models, wouldn't "Experimental" fullfill the same purpose > just as well? > > Why is Standards track considered appropriate for such documents?
Independent of whether the IGP YANG models are implemented, they provide a very useful reference for routing protocols. Standardization of the configuration and operational state is essential to advance the IGPs and serves as a reference model for protocol implementation. I've got much more important things to worry about than this. If you would like to contribute To the IETF YANG model implementation, Renato Westphal has implemented the base IGP models in his open-source implementation. https://github.com/holo-routing/holo/tree/master/holo-ospf/src/northbound https://github.com/holo-routing/holo/tree/master/holo-isis/src/northbound Thanks, Acee > > Kind regards, > > Job _______________________________________________ Lsr mailing list -- [email protected] To unsubscribe send an email to [email protected]
