Re: [YANG] keyref

Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de> wrote:
> On Tue, Jan 22, 2008 at 09:12:46AM +0100, Martin Bjorklund wrote:
>  
> > The idea is that the value space of the keyref type is constrained
> > to the set of values of the existing instances.
> 
> But that is time varying.

Yes.

> > This means that if you have a keyref to ifIndex, and the interface 1,
> > 3, and 4 exists, the value space is {1, 3, 4}.  When setting a leaf of
> > this type, you must set it to one of 1, 3, and 4.
> 
> So what happens if I choose 3 and interface 3 disappears?

That's why we don't want to allow keyrefs from config to non-config.

Maybe this is a use case that we want to support as well.  But I don't
see the difference between such a ref and a InterfaceIndex type
solution.

/martin

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