Saturday, February 9, 2008

NTP Operation

The NTP is one of the oldest protocols still in use, and is reached its quarter version. It was developed near the university of the Delaware from Dave Mills, than of it it follows still the development. The operation is based on the survey of the times of latenza in the transit of the packages on the net. It uses the universal co-ordinate time and he is therefore independent from the jet lag ones. Currently it is in a position to sincronizzare the clocks of the computers on Internet within a margin of 10 milliseconds and with one accuracy at least 200 microsecond ones to inside of one LAN in optimal conditions.

Various serveur NTP is organizes to you in a hierarchical structure of "layers", where layer 1 is synchronized with an external temporal source which an atomic clock, GPS or a radiocontrollato clock, layer 2 receives the temporal data from serveur of layer 1, and therefore via. A various serveur sincronizza confronting its clock with that one of other serveur of advanced layer or the same layer. This allows to increase the precision, and to eliminate eventual serveur scorretti.

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