gpsd or native
John Thurston
john.thurston at alaska.gov
Thu Sep 8 21:52:11 UTC 2022
Eric Raymond's HOWTO for a stratum 1 server
<https://www.ntpsec.org/white-papers/stratum-1-microserver-howto/> uses
/gpsd/ to provide the GPS data to ntpsec.
It explains the decision with this:
/If you are already familiar with ntpd and wonder why this recipe uses
gpsd through SHM rather than ntpd’s native refclock 20 GPS driver, the
answer is this: when refclock 20 is configured to use 1PPS, it mixes
in-band time data with 1PPS in a way that causes it to behave badly, and
possibly get rejected as a falseticker, when 1PPS is only occasionally
available./
The history notes on the page indicate it was first published late in
2016, and last updated in the middle of 2018. There has been a lot of
water under the bridge, and many changes to ntpsec since then.
My question is this: Four years on is this still a valid reason to
prefer /gpsd/ to using the 127.127.20.0 and 127.127.22.0 reference clock
drivers for GPS and PPS?
--
--
Do things because you should, not just because you can.
John Thurston 907-465-8591
John.Thurston at alaska.gov
Department of Administration
State of Alaska
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.ntpsec.org/pipermail/users/attachments/20220908/1bc76d96/attachment.htm>
More information about the users
mailing list