Towli wrote: > > why is the root dispertion not "0" when the Dcf77-clock is sitting on > port 20 on the switch? is 5.45 the time the Dcf77-signal takes to travel > from Frankfurt to Denmark where i am located? What then does the peer > dispersion time of 2.84 msec tell me?
Because: - the DCF 77 time wasn't read immediately before you requested the time from NTP, so the time could have drifted since then. - I'm not sure, but I think that the best sample might not be the most recent; - there is an uncertainty in reading the clock due to the finite resolution of the clock; - I think there may be an element of the historic variability thrown in; - using too low a root dispersion means the error band is very small, so it only needs a small error to make it impossible to get overlapping error bands. _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
