[ntp:questions] Accuracy of NTP

Dmitry Ivanov dimss at telecentrs.lv
Thu Apr 5 07:16:53 UTC 2007


On 4 Apr 2007, at 16:28, Chris Cox wrote:

> I'd like to know something like this: If we assume the servers are
> reasonably accurate, and state the statistics of the network jitter  
> and the
> behaviour of the client oscillator, and control the clock using NTP  
> over the
> network, what frequency variation can we expect?

Frequency variations depend mostly on stability of the local  
oscillator (combination of hardware and OS). Network conditions are  
less important (unless you have to use asymmetric or very  
unpredictable link). Some network jitter is not the problem at all.

-- 
Dmitry Ivanov
Network engineer
Telecentrs Riga, Latvia
dimss at telecentrs.lv
(+371) 7160235






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