Re: [netmod] Justification for decimal64 over string for floating point values in geo location data?

Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de> Tue, 07 July 2020 14:33 UTC

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Date: Tue, 7 Jul 2020 16:33:24 +0200
From: Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
To: Ladislav Lhotka <ladislav.lhotka@nic.cz>
Cc: netmod@ietf.org
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Subject: Re: [netmod] Justification for decimal64 over string for floating point values in geo location data?
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On Tue, Jul 07, 2020 at 04:24:03PM +0200, Ladislav Lhotka wrote:
> 
> > ASN.1 had INTEGER, a type of unlimited precision. In the early SNMP
> > days things started to fail to interoperate when you hit the 16-bit
> > limit. JSON (much newer) has numbers that start to become interesting
> > when you need more precision, a simple 64-bit counter starts falls
> > apart in JSON.
> 
> If you mean "counter64" in the ietf-yang-types module, then it doesn't
> fall apart in JSON, provided that the rules of RFC 7951 are followed.
>

I was alluding to plain JSON where you encode a number as a number
until you realize that some numbers must be encoded as strings to
avoid surprises. RFC 7951 does this for YANG defined data.

/js

-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
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