[ntp:questions] ntpd: time reset problem

Unruh unruh-spam at physics.ubc.ca
Thu Sep 17 05:26:19 UTC 2009

Steve Kostecke <kostecke at ntp.org> writes:

>On 2009-09-16, David Lord <snews at lordynet.org> wrote:

>> Tonight I gave it another couple or tries with "ntpd -q"
>> reset +0.150s within 300s
>> then used date to give a bigger initial offset
>> reset +66.9s within 330s
>> then started ntpd and was in sync within 260s

>The NTP Stable release needs to poll a refclock 4 times before it
>collects enough data to adjust (i.e. step or slew) the clock. The times
>you quote are consistant with this.

A refclock usually has a poll of 4 (16 sec) 4*16=64 sec.

>Steve Kostecke <kostecke at ntp.org>
>NTP Public Services Project - http://support.ntp.org/

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