Re: [OPSAWG] Francesca Palombini's Discuss on draft-ietf-opsawg-l3sm-l3nm-16: (with DISCUSS and COMMENT)

mohamed.boucadair@orange.com Tue, 05 October 2021 06:03 UTC

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From: mohamed.boucadair@orange.com
To: Carsten Bormann <cabo@tzi.org>
CC: Francesca Palombini <francesca.palombini@ericsson.com>, The IESG <iesg@ietf.org>, "draft-ietf-opsawg-l3sm-l3nm@ietf.org" <draft-ietf-opsawg-l3sm-l3nm@ietf.org>, "opsawg-chairs@ietf.org" <opsawg-chairs@ietf.org>, "opsawg@ietf.org" <opsawg@ietf.org>, "netmod@ietf.org" <netmod@ietf.org>
Thread-Topic: [OPSAWG] Francesca Palombini's Discuss on draft-ietf-opsawg-l3sm-l3nm-16: (with DISCUSS and COMMENT)
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Date: Tue, 05 Oct 2021 06:02:25 +0000
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Subject: Re: [OPSAWG] Francesca Palombini's Discuss on draft-ietf-opsawg-l3sm-l3nm-16: (with DISCUSS and COMMENT)
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Hi Carsten,

I confirm that what I meant is "bits per second" to align with rfc8299#6.12.1.

I'm actually for more explicit units similar to what we are using in another active spec: 

==
      enum bit-ps {
        value 2;
        description
          "Bits per Second (bit/s).";
      }
      enum byte-ps {
        value 3;
        description
          "Bytes per second (Byte/s).";
      }
==

However, we are in a territory where we are trying to map as much to the above service model and hence use the same labels for the units.

FWIW, RFC8466 used to have the following:

=
                  leaf pbs {
                    type uint64;
                    units "bps";
                    description
                      "Peak Burst Size.  It is measured in bytes per
                       second.";
                  }
=

...which is weird. This is why we don't blindly inherit that draft-ietf-opsawg-l2nm and went for the following: 

                      leaf pbs {
                        type uint64;
                        units "bytes per second";
                        description
                          "Peak Burst Size.";
                      }

Cheers,
Med

> -----Message d'origine-----
> De : Carsten Bormann <cabo@tzi.org>
> Envoyé : lundi 4 octobre 2021 17:50
> À : BOUCADAIR Mohamed INNOV/NET <mohamed.boucadair@orange.com>
> Cc : Francesca Palombini <francesca.palombini@ericsson.com>; The IESG
> <iesg@ietf.org>; draft-ietf-opsawg-l3sm-l3nm@ietf.org; opsawg-
> chairs@ietf.org; opsawg@ietf.org; netmod@ietf.org
> Objet : Re: [OPSAWG] Francesca Palombini's Discuss on draft-ietf-opsawg-
> l3sm-l3nm-16: (with DISCUSS and COMMENT)
> 
> On 2021-10-04, at 13:34, mohamed.boucadair@orange.com wrote:
> >
> > bytes per second (bps),
> 
> Whoa.
> 
> I know that the IETF doesn’t usually care about precision in these things,
> but “bps” is kitchen slang for “bit/s”, so this is very confusing.
> 
> (Given that we have done the work in RFC 8428 and 8798, I’d rather see
> that we use it, instead of creating more confusion at each further step.
> We do have ms and B/s in RFC 8798, because people using SenML asked for
> that.)
> 
> Grüße, Carsten


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