[ntp:questions] NTP tunning for OWD measurements

David Woolley david at ex.djwhome.demon.invalid
Sat Oct 27 07:32:58 UTC 2012


unruh wrote:

> 
> Then after a few days of running, plot the offset against the delay, and
> look at that graph. You may well notice wings on that graph with slope
> of 1/2 . Those are
> asymmetric delays. The spread of the central blob will also give you an
> idea of the noise on your connection. 
> 

Essentially, the OP's research project has become one on making the 
measurements, not one on the results of the measurement.  To do that he 
will need a good understanding of the internals of both NTP and of the 
algorithms used by your performance tool, as well as the delay and 
asymmetry statistics, against time, of the networks used;



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