[ntp:questions] Loopstats update - how often?

Dave Hart hart at ntp.org
Thu Mar 15 08:27:47 UTC 2012


On Thu, Mar 15, 2012 at 07:56, David J Taylor
<david-taylor at blueyonder.co.uk.invalid> wrote:
> If I have a configuration including:
>
> _________________________________
> server  192.168.0.7  minpoll 5 maxpoll 5        iburst
> server 0.uk.pool.ntp.org iburst  minpoll 10
> _________________________________
>
>
> how often should the loopstats be updated?  I was expecting something near
> to every 32 seconds, but it seems that sometimes it can be more than 64
> seconds.  Is that correct?

Ignoring the pool server, it could be as much as 32 * 8 seconds
between loopstats updates.  Some polls of 192.168.0.7 will not change
the offset estimate for that peer, as an older entry in the clock
filter register is preferred over the latest.

Cheers,
Dave Hart


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