Hi all, I'm running ntp-4.2.4p4 on FreeBSD. I was observing today the ntpd with ntpq and manipulating the stratum number of local time sources in ntp.conf. I've noticed that when I've disabled all pps sources and worked only with two gps antennas (receiving to ntp nmea frames only, ignoring pps, I set stratum 8 for antenna0 and stratum 12 for antenna1) the ntp has chosen antenna0 (so the source with higher stratum) and that's what I've expected. But then I've set all the sources in ntp.conf (gps nmea and pps, ocxo pps, rubidium pps) and put stratum 12 option near one of them and stratum 8 near the others. I saw that ntp has chosen the pps source that had the lower stratum number (12). The same situation appeared when setting stratum 12 option to another pps source. Every time the pps source with the lower stratum number was chosen(even gps pps (having stratum 12 number) had '*' in ntpq when ocxo and rubidium had '+' (having stratum 8 number)for all the time). During that all of the sources had very nice and nearly the same delay, offset and jitter.
Has someone any idea why it behaved so strange with pps sources? Thank you for your help. Best Regards, Grzegorz Daniluk _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
