Node Apparatus for Clock Synchronization in Residential Ethernet System and Method for Clock Synchronization

摘要

1. Technical Field of the invention set forth in the claims ; The invention will, to an apparatus and method for maintaining a clock-synchronous even if relates to a Residential Ethernet, in particular a plurality of node devices are connected. ; 2. The invention is to solve the technical challenges ; The present invention, in the time synchronization of the base clock based method in Residential Ethernet system, to a number of hops exist by a plurality of switch hop is performed after passing the synchronization complete message in the parent hop synchronization process in the presence to provide a node apparatus and a clock synchronizing method for clock synchronization in Residential Ethernet reducing the synchronization errors that may occur if there is an object. ; 3. The gist of the solution of the invention, ; The present invention provides a node device for clock synchronization in Residential Ethernet system, receiving the clock information and the synchronization termination information transmitted from the superordinate device by passing the clock information to the local clock, and wherein the synchronization termination information slave port to forward to the master port of the internal node device; Wherein the local clock for receiving the clock information from the slave port, change the clock of the internal nodes of the device; And it receives the synchronization end message from the slave port, including at least one or more of the master port for delivering a clock from the local clock as a child of the node device. ; 4. important use of the invention ; The present invention used to fight like Residential Ethernet. ; Residential Ethernet, slave, master, local clock