"Richard B. Gilbert" <[EMAIL PROTECTED]> wrote:
> [EMAIL PROTECTED] wrote:
> > I built a time server with redhat 7.2 and ntp 4.2.0 and Motorola M12T.
> > The time server works well.But when I sync with time.nist.gov ,I found
> > my time server is about 200ms later .who can tell me why?
> >
> >
> > [EMAIL PROTECTED] lxh]# ntpdate -q 192.168.2.7
> > server 192.168.2.7, stratum 1, offset 78.759011, delay 0.02599
> > 29 Mar 15:37:32 ntpdate[1090]: step time server 192.168.2.7 offset
> > 78.759011 sec
> >
> > [EMAIL PROTECTED] lxh]# ntpdate -q time.nist.gov
> > server 192.43.244.18, stratum 1, offset 78.958525, delay 0.26364
> > 29 Mar 15:38:24 ntpdate[1092]: step time server 192.43.244.18 offset
> > 78.958525 sec
> >
> > [EMAIL PROTECTED] lxh]# ntpdate -q clock.isc.org
> > server 204.152.184.72, stratum 1, offset 78.980319, delay 0.20029
> > 29 Mar 15:45:16 ntpdate[1111]: step time server 204.152.184.72 offset
> > 78.980319 sec
> >
> > where 192.168.2.7 is my time server .
> Next, you have in no way demonstrated that you (or NIST) are off by 200
> milliseconds! You are showing an offset of 78 milliseconds.
No, that's an offset of 78.x seconds, presumably seen from another,
unsynced, local machine. It's the difference between the offsets
that shows the local server 200ms or more behind the others.
--
Ronan Flood <[EMAIL PROTECTED]>
working for but not speaking for
Network Services, University of London Computer Centre
(which means: don't bother ULCC if I've said something you don't like)
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