Re: [netmod] rfc6991bis: yang:percentage

Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de> writes:

>   - Percentages are frequently used in YANG models but usages differ a
>     lot in precision and range. It is not clear what the proper
>     generic definition of a percentage type would be and whether it is
>     worth having it.
>
>     RFC 7950 example:
>
>          typedef percent { type uint8 { range "0 .. 100"; } }
>
>     RFC 8294:
>
>          typedef percentage { type uint8 { range "0..100"; } }
>
>     I-Ds:
>          typedef percentage { type decimal64 { fraction-digits 5; } }
>          typedef percentile { type decimal64 { fraction-digits 2; } }
>
>     The yang catalogue seems to be down. :-(
>
>   - Proposal: do not add a percentage type since it is trivial to
>     define a context specific percentage type that matches range and
>     precision requirements (and there is already a definition in RFC
>     8294 for those who need exactly that definition).

I agree with this proposal. It is also possible to use

   units percent;

where necessary.

Lada

>
> -- 
> Juergen Schoenwaelder           Jacobs University Bremen gGmbH
> Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
> Fax:   +49 421 200 3103         <https://www.jacobs-university.de/>
>
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Ladislav Lhotka 
Head, CZ.NIC Labs
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