On 20/07/2020 11:19, Ladislav Lhotka wrote:
Juergen Schoenwaelder <[email protected]> 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.
On the other hand, when I look at the numerous percent/percentage
occurrences in YANG model, it doesn't hurt to define that typedef.
https://yangcatalog.org/yang-search/ => search on "node name" and
typedef only
We can find 56 entries from IETF, IEEE, BBF, OC, MEF, vendors
Most of them points to:
*typedef* percent {
*type* uint8 {
*range* "0 .. 100";
}
}
Regards, Benoit
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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