Re: [Ntp] CLOCK_TAI (was NTPv5: big picture)

Philip Prindeville <philipp@redfish-solutions.com> Tue, 05 January 2021 20:12 UTC

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From: Philip Prindeville <philipp@redfish-solutions.com>
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Date: Tue, 05 Jan 2021 13:12:53 -0700
Cc: Hal Murray <hmurray@megapathdsl.net>, Miroslav Lichvar <mlichvar@redhat.com>, ntp@ietf.org
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Subject: Re: [Ntp] CLOCK_TAI (was NTPv5: big picture)
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> On Jan 5, 2021, at 9:09 AM, Martin Burnicki <martin.burnicki=40meinberg.de@dmarc.ietf.org> wrote:
> 
> For NTP, things are different. There is a huge base of NTPv4
> installations, and making NTPv5 basically compatible with v4 would IMO
> strongly increase the acceptance of NTPv5.


The logical corollary to this argument is that because there ARE a lot of servers, it’s not unreasonable to think that there will be a lot of both NTPv4 and NTPv5 servers co-existing in the future, and the user is free to peer with either.

Which eliminates the need for NTPv5 servers to also speak NTPv4.