On 06/28/2011 06:42 PM, David Woolley wrote:
> chipper wrote:
>> Ok how do jitter and delay measure time accuracy?
> 
> You cannot measure time accuracy.  If you could, you would use the time that 
> you were comparing against as the time to which to synchronise.
> 
> Jitter and delay measure the short term consistency in the time error 
> measurements and the give an indication of the worst case error due to 
> network asymmetry.  They are both measures of the quality of the time error 
> estimate.
> 
> My feeling is that you are either not listening or you have unrealisable 
> expectations.
where could I get a good explanation of the ntpd pll and the math behind it.

Thanks

Chip

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