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Re: [Ntp] New Version Notification for draft-gruessing-ntp-ntpv5-requirements-03.txt

Doug Arnold <doug.arnold@meinberg-usa.com> Thu, 21 October 2021 13:32 UTC

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From: Doug Arnold <doug.arnold@meinberg-usa.com>
To: "kristof.teichel@ptb.de" <kristof.teichel@ptb.de>, Hal Murray <halmurray@sonic.net>
CC: "ntp@ietf.org" <ntp@ietf.org>, ntp <ntp-bounces@ietf.org>
Thread-Topic: [Ntp] New Version Notification for draft-gruessing-ntp-ntpv5-requirements-03.txt
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ntp/wMl-JH5WSZR1Ixf229pEPKqg2MA>
Subject: Re: [Ntp] New Version Notification for draft-gruessing-ntp-ntpv5-requirements-03.txt
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We've done negative leap second tests at PTP plugfests, and many implementations had problems.

________________________________
From: ntp <ntp-bounces@ietf.org> on behalf of kristof.teichel@ptb.de <kristof.teichel@ptb.de>
Sent: Thursday, October 21, 2021 7:59 AM
To: Hal Murray <halmurray@sonic.net>
Cc: ntp@ietf.org <ntp@ietf.org>; ntp <ntp-bounces@ietf.org>
Subject: Re: [Ntp] New Version Notification for draft-gruessing-ntp-ntpv5-requirements-03.txt

"ntp" <ntp-bounces@ietf.org> schrieb am 21.10.2021 13:14:35:
>
>
> kristof.teichel@ptb.de said:
> > I can 100% attest to this. All of my colleagues and superiors thatI've ever
> > talked to about this were shocked and appalled to learn that the WG was
> > considering anything other than UTC as the basis for dissemination.
>
> Note that GPS and similar are not using UTC as the "basis for
> dissemination".  They use something without leap seconds.  They also
> provide enough information for a client to translate their time to UTC.

Right; neither does PTP.
And that all makes absolute sense, as far as I'm concerned.
Fact remains that it is a point of concern for people in that field in NMIs, many of whom have spent years trying to get as many things as possible to use UTC.
I'm saying that we should be aware of that in this whole debate.

> > In that vein, I'm also supposed to communicate that the whole issue might
> > become moot "soon", since leap seconds might just be removed as a thing
> > that happens in UTC.
>
> I haven't been following that and I haven't noticed anything
> recently.  Can anybody provide any info on what is going on?  What
> are the chances they will go away?  If so, when?

I only have second-hand insight, really.
What I gather is that there is a growing fear of a situation similar to the Y2K bug scare, because it is predicted that (for the first time I believe) there could soon be a negative leap second and time sync appliances might just fail in the face of having to deal with that.
I will try to get better info, in particular quantifying chances and timeframe.

> --
> These are my opinions.  I hate spam.
>
>
>
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