IEEE 1588 based national time-scale distribution project in Ukraine

A conception of National time-scale distribution network, using PTP technology is considered in Ukraine as the most modern one and having large perspectives, since IEEE 1588 based applications are now expanded to be used in many different fields. Paper describes some PTP master-slave implementation results, obtained in a long-distance non-PTP network (rented VPN, Virtual Private Network was used) at different network load levels and in different regions of Ukraine. A conclusion has been made that even in non-PTP network it's possible to provide a time-scale transfer service with millisecond precision in a worst case, what makes it useful just today for Time and Frequency National Laboratories.