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Re: [Ntp] Frequency transfer in NTP

Watson Ladd <watsonbladd@gmail.com> Sun, 31 January 2021 23:11 UTC

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From: Watson Ladd <watsonbladd@gmail.com>
Date: Sun, 31 Jan 2021 15:10:46 -0800
Message-ID: <CACsn0cmZtqiYKhhM2Mxz5-POkU5y=KVmb-t=7ngsCzzX5mF1YA@mail.gmail.com>
To: Miroslav Lichvar <mlichvar@redhat.com>
Cc: NTP WG <ntp@ietf.org>
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Subject: Re: [Ntp] Frequency transfer in NTP
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On Thu, Jan 28, 2021 at 6:32 AM Miroslav Lichvar <mlichvar@redhat.com> wrote:
>
> One of the new features that was proposed for NTPv5 is an additional
> receive timestamp to enable a frequency transfer to stabilize
> synchronization. I have tested this idea with two different
> implementations:
>
> https://fedorapeople.org/~mlichvar/ntp-freq-transfer/

Thank you Miroslav for conducting these necessary experiments!

One thing to note is independent operation of a frequency reference is
easier than independent operation of a time reference: it has to know
what time it was started.

Sincerely,
Watson Ladd

>
> I think this would be a significant improvement of the protocol.
>
> --
> Miroslav Lichvar
>
> _______________________________________________
> ntp mailing list
> ntp@ietf.org
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