[ntp:questions] Meinberg NTP Software--Time Accuracy
notvalid2 at sbcglobal.net
Tue Jun 23 11:00:44 UTC 2009
Martin Burnicki wrote:
> David J Taylor wrote:
>> W. eWatson wrote:
>>> I set drift.conf as above for Win2000.
>>> server 0.us.pool.ntp.org preempt iburst
>>> but do not believe the PC clock is in synch with accurate time. After
>>> 30-60 seconds they looked 3 sec apart.
>> The Meinberg package is based in NTP 4.2.4, and mau not support the
>> "preempt" keyword. Try the following in your ntp.conf file:
>> server 0.us.pool.ntp.org iburst
>> server 1.us.pool.ntp.org iburst
>> server 2.us.pool.ntp.org iburst
>> server 3.us.pool.ntp.org iburst
> Whether pool servers are being configured or a dedicated USNO server, is a
> question of policy, but should not make a difference for this problem.
> However, having a look at the contents of the OP's ntp.conf file shows an
> # Use specific NTP servers
> server tick.usno.nav.mil iburst
> If you look at the spelling then you see there's a typo:
> tick.usno.nav.mil can not be resolved, this should read:
> So the name of the upstream server is simply invalid, and thus ntpd can not
> sync to it. And, if you'd misspell the names of the pool servers, the pool
> server would not work, either.
> This also explains why "ntpq -p" prints "No association ID's returned" (as
> reported by the OP in an earlier post), and I'm sure if the OP had done as
> I earlier suggested and had had a look into the Windows application event
> log he would have seen an appropriate error message which leads into the
> right direction.
It looks like pulling the preempt, did the trick. It "looks" like the two
sources, NTP and my Radio Shack atomic clock, are very close. Too bad one of
them doesn't beep every five seconds.
Is there a primer for NTP?
I have a number of colleagues who are working with the same equipment and
software, but are operaing with Linux or Apple. Does some implementation
like Meinberg exist for them? Where would they find it?
(121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet
Web Page: <www.speckledwithstars.net/>
More information about the questions