Re: [netmod] for a future rfc6991bis

Ladislav Lhotka <lhotka@nic.cz> Wed, 14 November 2018 08:16 UTC

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From: Ladislav Lhotka <lhotka@nic.cz>
To: netmod@ietf.org
Date: Wed, 14 Nov 2018 09:16:08 +0100
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Subject: Re: [netmod] for a future rfc6991bis
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On Wed, 2018-11-14 at 09:10 +0100, Martin Bjorklund wrote:
> Hi,
> 
> Alex Campbell <Alex.Campbell@Aviatnet.com> wrote:
> > Does a percentage really need a single standard type in the first
> > place? How about "units percent;"?
> 
> At this point, after hearing about how different modules have
> differing requirement on this type, I tend to agree.

+1

Or even "units %;"

Lada

> 
> 
> /martin
> 
> 
> > ________________________________________
> > From: netmod <netmod-bounces@ietf.org> on behalf of Acee Lindem (acee)
> > <acee@cisco.com>
> > Sent: Wednesday, 14 November 2018 5:03 a.m.
> > To: Juergen Schoenwaelder; Balázs Lengyel
> > Cc: NETMOD WG
> > Subject: Re: [netmod] for a future rfc6991bis
> > 
> > On 11/13/18, 9:07 AM, "netmod on behalf of Juergen Schoenwaelder"
> > <netmod-bounces@ietf.org on behalf of
> > j.schoenwaelder@jacobs-university.de> wrote:
> > 
> >     On Tue, Nov 13, 2018 at 01:33:01PM +0000, Balázs Lengyel wrote:
> >     > Hello,
> >     >
> >     > In some cases I want a percentage without fractions. This could be
> >     > defined
> >     > using range, by specifying the numbers 0 | 1 | 2 ... 99 | 100 in the
> >     > range's
> >     > argument.
> >     >
> >     >     typedef percent-short {
> >     >       type percent { range 0 | 1 | 2 ... 99 | 100; } // didn't type
> > out
> >     >       all the 101 integer values :-)
> >     >     }
> >     >
> > 
> >     I guess we need to settle on a small number of percentage types that
> >     people find useful and then module authors hopefully find what they
> >     need. I am not sure that listing 101 numbers is a good pattern to use
> >     (although it does achieve what you want). For percentages that have no
> >     fraction, you likely want to derive from a base type that is efficient
> >     to encode for binary encodings such as CBOR.
> > 
> > Or simply define a type with a base type of unit8 type and a range of
> > 0-100.
> > 
> > Acee
> > 
> > 
> > 
> > 
> > 
> >     /js
> > 
> >     --
> >     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/>
> > 
> >     _______________________________________________
> >     netmod mailing list
> >     netmod@ietf.org
> >     https://www.ietf.org/mailman/listinfo/netmod
> > 
> > 
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Ladislav Lhotka
Head, CZ.NIC Labs
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