[ntp:questions] Query about NTP accuracy

David Woolley david at ex.djwhome.demon.co.uk.invalid
Mon Jun 1 21:00:08 UTC 2009


Mike K Smith wrote:

> 
> I thought a falseticker's dispersion had to have no overlap with the
> other clocks - like this:

You can have cliques of false tickers.

> 
> 1
>           |--------+--------|
> 2
>               |----------+----------|
> 3                                          |------------+------------|
> 
> Surely in this case either 1 or 2 would be selected and 3 flagged as
> falseticker.

Both 1 and 2 would be selected, although only one of them would be used 
to determine the stratum and downstream quality parameters.  Both will 
be used to estimate the time.
> 
> All comments appreciated.

There are still some details I would like to check against the code.




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