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Re: [Ntp] Antw: Re: [EXT] Re: NTPv5 draft suggestion to move timescale offset into extension fields.

David Venhoek <david@venhoek.nl> Tue, 17 January 2023 12:26 UTC

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From: David Venhoek <david@venhoek.nl>
Date: Tue, 17 Jan 2023 13:26:38 +0100
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To: Ulrich Windl <Ulrich.Windl@rz.uni-regensburg.de>
Cc: mlichvar@redhat.com, "ntp@ietf.org" <ntp@ietf.org>
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Subject: Re: [Ntp] Antw: Re: [EXT] Re: NTPv5 draft suggestion to move timescale offset into extension fields.
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The problem with TAI (or any other fixed timescale) for all time
exchanges is that this forces every node to know that timescale.
However you then can run into the problem that it is not available to
the system via any route, inhibiting any time exchange.

On Tue, Jan 17, 2023 at 12:55 PM Ulrich Windl
<Ulrich.Windl@rz.uni-regensburg.de> wrote:
>
> >>> Miroslav Lichvar <mlichvar@redhat.com> schrieb am 17.01.2023 um 12:05 in
> Nachricht <Y8aA97ioVN6n7/ai@localhost>:
>
> ...
> > What do others think?
>
> Actually I don't know, but it seems we need to support UTC for compatibility with the past; otherwise I'd tend to suggest a radical approach:
> Use TAI for time exchanges only, and insert a "time converter" between the NTP clock model and the host clock model (bi-directional). So one could have any type of local time one would like.
>
> Regards,
> Ulrich
>
> >
> > --
> > Miroslav Lichvar
> >
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