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

2017-06-06 Thread David Taylor
On 06/06/2017 13:11, girin...@gmail.com wrote: [] Some GPS will continue to deliver a PPS signal even if the lock is lost. I'm thinking particularly about the Garmin 18xLVC where it is clearly indicated in the documentation (4.4.1): 'After the initial position fix has been calculated, the PPS

Re: [ntp:questions] ntp client does not sync with server after nic down and up

2017-06-06 Thread Mike Cook
> Le 5 juin 2017 à 11:06, 稻草人/nl <1227870...@qq.com> a écrit : > > hi,guys > > > i have a ntp server and client on suse with v 4.2.8p10. both server and > client have two ip in the same subnet, and client use this 2 ip sync with > server,after long time test(8hours for ifconfig down and

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

2017-06-06 Thread David Taylor
On 05/06/2017 22:53, Jakob Bohm wrote: [] 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.

[ntp:questions] ntp client does not sync with server after nic down and up

2017-06-06 Thread ??????/nl
hi,guys i have a ntp server and client on suse with v 4.2.8p10. both server and client have two ip in the same subnet, and client use this 2 ip sync with server??after long time test(8hours for ifconfig down and then up 2 nics), i found client cannot sync with server(saw a large value of

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

2017-06-06 Thread Jakob Bohm
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