[ntp:questions] NTP broadcastclient update times?

W. D. NewsGroups at US-Webmasters.com
Thu Oct 14 23:31:34 UTC 2004


Hi Folks,

My NTP time server is now running very accurately.  
Stability numbers are usually smaller than 0.01.  However, 
one of my broadcastclient(s) is off by fairly
large fractions of a second at times.  

Fragment of ntp.log:

14 Oct 01:21:19 ntpd[88]: synchronized to 192.168.2.122, stratum=2
14 Oct 01:29:55 ntpd[88]: time reset +1.643005 s
14 Oct 01:31:07 ntpd[88]: synchronized to 192.168.2.122, stratum=2
14 Oct 01:41:44 ntpd[88]: no servers reachable
14 Oct 01:49:15 ntpd[88]: synchronized to 192.168.2.122, stratum=2
14 Oct 01:55:43 ntpd[88]: time reset -1.314898 s
14 Oct 01:56:55 ntpd[88]: synchronized to 192.168.2.122, stratum=2
14 Oct 02:18:12 ntpd[88]: time reset +0.485238 s
14 Oct 02:19:25 ntpd[88]: synchronized to 192.168.2.122, stratum=2
14 Oct 02:53:42 ntpd[88]: time reset +0.638312 s
14 Oct 02:54:56 ntpd[88]: synchronized to 192.168.2.122, stratum=2
14 Oct 03:18:24 ntpd[88]: time reset -0.400259 s
14 Oct 03:19:36 ntpd[88]: synchronized to 192.168.2.122, stratum=2

ntpq> rv
assID=0 status=06f4 leap_none, sync_ntp, 15 events,
event_peer/strat_chg,
version="ntpd 4.2.0 at 1.1161-r Tue Oct 12 16:50:34 CDT 2004 (1)"?,
processor="i386", system="FreeBSD/4.9-RELEASE", leap=00, stratum=3,
precision=-18, rootdelay=295.011, rootdispersion=287.574, peer=4253,
refid=192.168.2.122,
reftime=c5197497.8b2ff5bc  Thu, Oct 14 2004 16:56:39.543, poll=6,
clock=0xc51974cb.18eec660, state=4, offset=-3.982, frequency=78.686,
jitter=0.155, stability=0.016

Does anyone have an explanation for this?  Is there a
way to make these adjustments more frequently so that
the client clock is only off by a few hundredths of
a second or less?





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