Re: Eric Rescorla's No Objection on draft-ietf-bfd-yang-16: (with COMMENT)

[Jeffrey Haas <[e-mail]>]

[Note that I'm making this comment for posterity so that the IESG doesn't
ask the same thing of other draft authors.]

On Thu, Jul 05, 2018 at 06:18:42AM -0700, Eric Rescorla wrote:
> On Thu, Jul 5, 2018 at 6:10 AM, Reshad Rahman (rrahman) <[e-mail]>
> wrote:
> > <RR2> The pyang tool does this for real references (leafref) but not in
> > the grouping case (which is reuse and not reference). Even though there is
> > replication in the tree diagrams, I believe there is benefit in seeing the
> > complete tree for each module.
> >
> 
> Well, this is a comment so you're free to ignore it, but IMO it makes it
> very hard to read these.

The fundamental issue here is one of clear representation of a node being
instantiated vs. the semantic idea that we're seeing a template (grouping)
instantiated.

At the moment, pyang output is showing that when you use a grouping, you get
an actual node in the tree.  Given that things like augmentations cannot be
done to groupings as a logical entity and have impact everywhere, this is
perhaps an important detail, if annoying.

The proper place to pursue a fix to this is asking for a bis on RFC 8340.

-- Jeff