I've spent the better part of the day trying to get my Stratum 1 server
running using my GPS 18 LVC. For the most part, everything on the hardware
side seems to be working just fine. My problem seems to be with the
configurations of my server running Debian.
Does anybody have a clue what I might have missed?
NTP is running, but nothing appears to be updating:
----
godzilla:/etc# ntpq -pn
remote refid st t when poll reach delay offset
jitter
==============================================================================
127.127.20.1 .GPS. 0 l - 64 0 0.000 0.000
0.001
127.127.22.0 .PPS. 0 l - 16 0 0.000 0.000
0.001
godzilla:/etc# ntpq -p
remote refid st t when poll reach delay offset
jitter
==============================================================================
GPS_NMEA(1) .GPS. 0 l - 64 0 0.000 0.000
0.001
PPS(0) .PPS. 0 l - 16 0 0.000 0.000
0.001
godzilla:/etc#
I'm getting a signal on /dev/pps0, but its coming in duplicate
---
godzilla:/etc#
godzilla:/etc# /usr/src/pps-tools/ppstest /dev/pps0
trying PPS source "/dev/pps0"
found PPS source "/dev/pps0"
ok, found 1 source(s), now start fetching data...
source 0 - assert 1296769631.017066245, sequence: 1044 - clear
1296769630.117041643, sequence: 1043
source 0 - assert 1296769631.017066245, sequence: 1044 - clear
1296769631.117070403, sequence: 1044
source 0 - assert 1296769632.017097642, sequence: 1045 - clear
1296769631.117070403, sequence: 1044
source 0 - assert 1296769632.017097642, sequence: 1045 - clear
1296769632.117100679, sequence: 1045
source 0 - assert 1296769633.017124279, sequence: 1046 - clear
1296769632.117100679, sequence: 1045
source 0 - assert 1296769633.017124279, sequence: 1046 - clear
1296769633.117129435, sequence: 1046
Here is my ntp.conf file:
---
server 127.127.20.1 mode 8 prefer # NMEA GPZDA format
fudge 127.127.20.1 time2 0.090 # NMEA offset
server 127.127.22.0 minpoll 4 maxpoll 4 # PPS ATOM driver
fudge 127.127.22.0 flag3 1 flag2 1
driftfile /var/lib/ntp/ntp.drift
And this is all I see when I query the logs after ntp starts
----
Feb 3 16:49:34 empireva ntpd[3544]: ntpd [email protected] Sun Nov 22
16:14:34 UTC 2009 (1)
Feb 3 16:49:34 empireva ntpd[3545]: precision = 1.000 usec
Feb 3 16:49:34 empireva ntpd[3545]: Listening on interface #0 wildcard,
0.0.0.0#123 Disabled
Feb 3 16:49:34 empireva ntpd[3545]: Listening on interface #1 wildcard,
::#123 Disabled
Feb 3 16:49:34 empireva ntpd[3545]: Listening on interface #2 lo, ::1#123
Enabled
Feb 3 16:49:34 empireva ntpd[3545]: Listening on interface #3 eth0,
fe80::d227:88ff:fe17:46f9#123 Enabled
Feb 3 16:49:34 empireva ntpd[3545]: Listening on interface #4 lo,
127.0.0.1#123 Enabled
Feb 3 16:49:34 empireva ntpd[3545]: Listening on interface #5 eth0,
192.168.3.25#123 Enabled
Feb 3 16:49:34 empireva ntpd[3545]: kernel time sync status 0040
Feb 3 16:49:34 empireva ntpd[3545]: frequency initialized 3.448 PPM from
/var/lib/ntp/ntp.drift
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