[ntp:questions] GPS-PPS, standalone server. NTP

Jakob Bohm jb-usenet at wisemo.com
Mon Jun 5 21:53:17 UTC 2017

On 04/06/2017 18:48, Hans Mayer wrote:
> ...
> For a stratum 1 server I wouldn't define any pool server as "sanity". They will almost never be used. If PPS fails time will be taken from GPS or SHM driver. Only if this fails too the next will be taken.

Note that any failure in the GPS/GNSS radio hardware that actually
provides both the PPS pulses and the NMEA messages would be a failure of
both "ntpd sources".

Thus such a failure of NMEA+PPS would be more common than a failure of
NMEA or PPS alone.


Jakob Bohm, CIO, Partner, WiseMo A/S.  https://www.wisemo.com
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