[ntp:questions] Number of Stratum 1 & Stratum 2 Peers

Martin Burnicki martin.burnicki at meinberg.de
Wed Dec 17 13:37:41 UTC 2014

Harlan Stenn wrote:
> Martin Burnicki writes:
>> Rob wrote:
>>> Unfortunately, the same mechanism isn't used for leap seconds.
>>> There would be no problem at all when the system time ticked in TAI
>>> and the addition of the leap seconds is done via some rule table similar
>>> to the local time rules.  ntpd would not even be involved in the problem.
>> Also agreed. However, actually ntpd expects UTC, not TAI.
> One of the things I'm thinking about for NTP5 is systems that choose to
> run in TAI and not UTC.  This is a natural tie-in with NTF's General
> Timestamp API, as we need to know what timescale the remote system is
> using.

Of course. However, you would anyway need the current rules or 
algorithms required to do the conversion.

> This woud also handle the case of maintaining sync with a system that
> chooses to implement Google's leap smear,

Do you know the *exact* algorithm how Google smears a leap second? If 
you don't know it there will be differences in the time computed by 
standard ntpd v5 and Google's. ;-)


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