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

Ulrich Windl <Ulrich.Windl@rz.uni-regensburg.de> Tue, 19 October 2021 08:15 UTC

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Date: Tue, 19 Oct 2021 10:15:32 +0200
From: Ulrich Windl <Ulrich.Windl@rz.uni-regensburg.de>
To: james.ietf@gmail.com, mlichvar@redhat.com
Cc: "ntp@ietf.org" <ntp@ietf.org>, doug.arnold@meinberg-usa.com
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Subject: [Ntp] Antw: [EXT] Re: New Version Notification for draft-gruessing-ntp-ntpv5-requirements-03.txt
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>>> James <james.ietf@gmail.com> schrieb am 18.10.2021 um 18:47 in Nachricht
<C953CCDB-8338-4CD8-BFB2-7DC1F880B341@gmail.com>:

...
> * Smear in the server, and be at odds with attempting to be a linear, 
> monotonic timescale and have an accuracy penalty to all clients and limit how 
> they can source time. If this is what NTPv5 does it should signal both the 
> presence of potential smearing as well as when smearing is happening, and we 
> have to answer my previous comments regarding smearing cadence.
...

I think the point is: If a server smears the leapsecond, it should also keep the "non-smeared time" and send that out when being asked for the time.
Basically that would mean that there is no leap smearing in the NTP protocol; only local.

Regards,
Ulrich

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