Re: [babel] [Last-Call] RtgDir review: draft-ietf-babel-information-model-11.txt

Juliusz Chroboczek <jch@irif.fr> Tue, 20 October 2020 12:49 UTC

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Date: Tue, 20 Oct 2020 14:49:20 +0200
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From: Juliusz Chroboczek <jch@irif.fr>
To: Joe Abley <jabley@hopcount.ca>
Cc: Geoff Huston <gih@apnic.net>, rtg-ads@ietf.org, rtg-dir@ietf.org, draft-ietf-babel-information-model.all@ietf.org, babel@ietf.org, last-call@ietf.org
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Subject: Re: [babel] [Last-Call] RtgDir review: draft-ietf-babel-information-model-11.txt
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>> "centiseconds"? Really? "tenths of seconds" would be clearer to most
>> readers!

> Perhaps this was intentional, but a centisecond is a hundredth of a second,

The wording is consistent with Section 4.1.2 of draft-ietf-babel-rfc6126bis:

   Relative times are carried as 16-bit values specifying a number of
   centiseconds (hundredths of a second).

It then goes on to justify this somewhat unusual choice of units:

   This allows times up to roughly 11 minutes with a granularity of 10ms,
   which should cover all reasonable applications of Babel

> maybe spelling it out as you suggest is reasonable.

I agree, a parenthetical remark to define the unit would be helpful,
simlarly to what is done in rfc6126bis.

-- Juliusz