Hi Lada,

> -----Original Message-----
> From: Ladislav Lhotka [mailto:[email protected]]
> Sent: Freitag, 11. Dezember 2015 11:51
> To: GUBALLA, JENS (JENS)
> Cc: [email protected]
> Subject: Re: [netmod] How to model a leafref in union conforming to
> RFC6020?
> 
> 
> > On 11 Dec 2015, at 10:29, GUBALLA, JENS (JENS) <jens.guballa@alcatel-
> lucent.com> wrote:
> >
> > Hi,
> >
> > According to RFC6020 a leafref within a union is not allowed. This
> > issue is captured by Y30 of the yang1.1 issue list.
> >
> > My question: how can such a construct as show below be modeled
> > conforming to RFC6020?
> >
> >    leaf the_reference {type uint8;}
> >    leaf something {
> >        type union {
> >            type leafref {
> >                path "../the_reference";
> >            }
> >            type enumeration {
> >                enum "none";
> >                enum "something-else";
> >            }
> >        }
> >    }
> >
> > Has anyone any ideas or can someone provide me a pointer if this has
> > been discussed already?
> 
> You can define the first union member simply as uint8, without being
> formally coupled with "the_reference". I'd suggest to use YANG 1.1
> though where that CLR was removed.
[JG] Thanks a lot for your suggestions. Replacing "type leafref" by "type
unit8" would mean to lose the semantic of the leafref type. Thus

    <the_reference>5</the_reference>
    <something>4</something>

would unfortunately be regarded as compliant to the model.

On the other hand the data model should be Yang1.0 compliant. So I want to
check if there is any other solution to the issue.

Best regards,
Jens

> 
> Lada
> 
> >
> > Thanks,
> > Jens
> 
> --
> Ladislav Lhotka, CZ.NIC Labs
> PGP Key ID: E74E8C0C
> 
> 
> 

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