Patent ID: 8730868
Filing Date: 2014-05-20
Classification: H04J,H04L,H04W

Abstract:
1. A network node for transferring data in a network, comprising: a network interface having a plurality of ports; a transfer control module; a time synchronizing module; a fluctuation measurement module; and a clock, wherein: the time synchronization module uses a received time synchronization packet to synchronize the clock; the fluctuation measurement module determines an accuracy of a time contained in the received time synchronization packet based on a result of comparison between the time contained in the received time synchronization packet and a time of the clock; the time synchronization module is configured to: the fluctuation measurement module is configured to: the time synchronization module ignores a synchronization signal transmitted from the network node of the current synchronization source, and starts processing for synchronization with a network node of a new synchronization source based on results of the determinations by the fluctuation measurement module.