12-11-2019
Thanks for explanation.
Quote:
ntp-serv10 # ntpq -p
remote refid st t when poll reach delay offset disp
==============================================================================
*sea-gps-clock1. .GPS. 1 u 416 1024 377 1.54 -1.297 1.82
172.28.42.204 .GPS. 1 u 744 1024 0 44.45 2.298 16000.0
+172.28.34.204 .GPS. 1 u 814 1024 277 77.00 -1.162 1.37
ntp-serv10 #
ntp-serv10 # ping -s 172.28.42.204 1400 100
PING 172.28.42.204: 1400 data bytes
1408 bytes from 172.28.42.204: icmp_seq=0. time=56. ms
1408 bytes from 172.28.42.204: icmp_seq=1. time=44. ms
1408 bytes from 172.28.42.204: icmp_seq=2. time=45. ms
1408 bytes from 172.28.42.204: icmp_seq=3. time=44. ms
1408 bytes from 172.28.42.204: icmp_seq=4. time=44. ms
1408 bytes from 172.28.42.204: icmp_seq=5. time=45. ms
^C
----172.28.42.204 PING Statistics----
6 packets transmitted, 6 packets received, 0% packet loss
round-trip (ms) min/avg/max = 44/46/56
ntp-serv10 #
Here is my current conf file :
Quote:
ntp-serv10 # cat /etc/inet/ntp.conf | grep -v "#"
server 192.168.70.16 prefer
server 172.28.42.204
server 172.28.34.204
driftfile /var/ntp/ntp.drift
statsdir /var/ntp/ntpstats/
filegen peerstats file peerstats type day enable
filegen loopstats file loopstats type day enable
filegen clockstats file clockstats type day enable
How will I explain, if synchronisation is being lost to all these devices? Is it dragging back by (approx) 1 second? I see these messages for today morning too
Quote:
ntp-serv10 # cat /var/adm/messages | grep ntp | tail -10
Dec 9 13:13:15 ntp-serv10 xntpd[15247]: [ID 854739 daemon.info] synchronized to 172.28.34.204, stratum=1
Dec 9 13:13:14 ntp-serv10 xntpd[15247]: [ID 774427 daemon.notice] time reset (step) -1.003379 s
Dec 9 13:13:14 ntp-serv10 xntpd[15247]: [ID 204180 daemon.info] synchronisation lost
Dec 9 13:17:34 ntp-serv10 xntpd[15247]: [ID 854739 daemon.info] synchronized to 192.168.70.16, stratum=1
Dec 11 06:19:58 ntp-serv10 xntpd[15247]: [ID 774427 daemon.notice] time reset (step) 0.999029 s
Dec 11 06:19:58 ntp-serv10 xntpd[15247]: [ID 204180 daemon.info] synchronisation lost
Dec 11 06:24:58 ntp-serv10 xntpd[15247]: [ID 854739 daemon.info] synchronized to 192.168.70.16, stratum=1
Dec 11 06:24:57 ntp-serv10 xntpd[15247]: [ID 774427 daemon.notice] time reset (step) -1.003025 s
Dec 11 06:24:57 ntp-serv10 xntpd[15247]: [ID 204180 daemon.info] synchronisation lost
Dec 11 06:30:18 ntp-serv10 xntpd[15247]: [ID 854739 daemon.info] synchronized to 192.168.70.16, stratum=1
ntp-serv10 #
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LEARN ABOUT HPUX
ntp-wait
ntp-wait(1) User Commands ntp-wait(1)
NAME
ntp-wait - Wait for ntpd to stabilize the system clock
SYNOPSIS
ntp-wait [-flags] [-flag [value]] [--option-name[[=| ]value]]
All arguments must be options.
DESCRIPTION
ntp-wait will send at most num-tries queries to ntpd(8), sleeping for secs-between-tries after each status return that says ntpd(8) has not
yet produced a synchronized and stable system clock.
ntp-wait will do this quietly, unless the -v flag is provided. This can be useful at boot time, to delay the boot sequence until after
ntpd -g has set the time.
OPTIONS
-n number, --tries=number
Number of times to check ntpd. This option takes an integer number as its argument. The default number for this option is:
100
The maximum number of times we will check ntpd to see if
it has been able to synchronize and stabilize the system clock.
-s secs-between-tries, --sleep=secs-between-tries
How long to sleep between tries. This option takes an integer number as its argument. The default secs-between-tries for this
option is:
6
We will sleep for secs-between-tries after each query
of ntpd that returns "the time is not yet stable".
-v, --verbose
Be verbose.
By default, ntp-wait is silent.
With this option, ntp-wait will provide status information.
-?, --help
Display usage information and exit.
-!, --more-help
Pass the extended usage information through a pager.
-v [{v|c|n --version [{v|c|n}]}]
Output version of program and exit. The default mode is `v', a simple version. The `c' mode will print copyright information and
`n' will print the full copyright notice.
EXIT STATUS
One of the following exit values will be returned:
0 (EXIT_SUCCESS)
Successful program execution.
1 (EXIT_FAILURE)
The operation failed or the command syntax was not valid.
70 (EX_SOFTWARE)
libopts had an internal operational error. Please report it to autogen-users@lists.sourceforge.net. Thank you.
AUTHORS
Harlan Stenn
NOTES
This document corresponds to version 4.2.8p13 of NTP.
This manual page was AutoGen-erated from the ntp-wait option definitions.
ntp (4.2.8p13) 20 Feb 2019 ntp-wait(1)