US Patent 8630315 Ethernet network synchronization systems and methods
Patent 8630315 was granted and assigned to Ciena on January, 2014 by the United States Patent and Trademark Office.
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The present disclosure relates to Ethernet synchronization systems and methods that combines Synchronous Ethernet (Sync-E) and Precision Time Protocol (PTP) IEEE 1588 algorithms. The present invention includes systems and methods for Ethernet networks and node configurations that include a set of rules on node placement, such as Boundary Clock (BC) nodes and Sync-E nodes, a clock selection algorithm, a holdover algorithm, and the like. Advantageously, the present invention provides an architecture that allows practical and real-world useful clock propagation through placement of BCs and Sync-E nodes for best performance. Practical experience and theoretical design are embodied in the present invention to define a very specific set of rules on how to build a network capable of providing accurate and reliable synchronization. The present invention includes clock selection that unifies Sync-E and 1588 algorithms.
US Patent 08630315 Ethernet network synchronization systems and methods US Patent 8630315 Ethernet network synchronization systems and methods
US Patent 08630315 Ethernet network synchronization systems and methods
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