[ntp:questions] Stick to PPS, even if the prefer server fails

David J Taylor david-taylor at blueyonder.neither-this-bit.nor-this.co.uk
Sat Mar 21 14:25:07 UTC 2009


alkopedia at googlemail.com wrote:
> Hi
> My setup is as follows:
> 
> Server A <--- GPS
>  |
>  |
> Server B <--- HP cesium frequency normal
> 
> 
> Server A gets it's timestamps from GPS.
> Server B gets it's timestamps from Server A and PPS from the HP
> cesium. Server A is marked as prefer because otherwise PPS won't work.
> 
> My problem is:
> If Server A loses the GPS signal, it falls back to LOCAL and begins to
> drift away. In the beginning Server B doesn't care about that and
> stays to the PPS. But later it disconnects PPS and runs on Server A
> again. So both servers drift away. In my opinion Server B should stay
> to the PPS signal. Is there anything I can do about that?

What other sources do you have configured for server B?

David




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