Re: [netmod] 'status' statement needed on every node

[Juergen Schoenwaelder <[e-mail]>]

On Wed, Sep 06, 2017 at 01:47:57AM +0000, heasley wrote:
> 
> Isn't this something that is fixed with display (human representation)
> tools?
>

I often work with the original definitions. And if the original
definitions depend on context, I have to do another lookup (whether
this is inside the original definition or some tool generated human
representation does not matter). With the old /foo and /foo-state
approach this was really bad since you had often objects with the same
name and it was often not at all clear whether I have been looking at
the config true or the config false definition without an additional
search operation. Perhaps I could program my favourite editor to
generate explicit config statements and status statements on the fly
but I think we would be better off if readers would not have to
program editors or use special tools to easily understand what a
definition really means.

> > > I still don't know what it means to define hierarchical data and say the
> > > parent is deprecated but not the descendant nodes.
> > 
> > It is odd but can happen anyway. A current augmentation of something
> > that got deprecated likely stays current. I would hope that tools warn
> > if they see this but that's it.
> 
> How is anything ever expunged if parsing tools do not refuse to load
> a module that depends on a deprecated node that it is attempting to
> augment?

Expunged? Deprecating a definition does not expunge anything. Tools
that refuse to load a module that depends on deprecated nodes are in
my view broken. It was one of YANG's design goals to support
augmentations such that definitions and be augmented by independent
organizations. Hence, we must face reality that it is impossible to
determine how many augmentations of a definition are out there and
hence it is impossible to have them all updated at the same time.

/js

-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: [phone]         Campus Ring 1 | 28759 Bremen | Germany
Fax:   [phone]         <http://www.jacobs-university.de/>