Patent ID: 8923341
Filing Date: 2014-12-30
Classification: H04J,H04L

Abstract:
1. A method for reconfiguring a timing relationship in a network, the network comprising network nodes comprising at least one physical layer device, the physical layer devices pair-wise coupled between network nodes with a first node with a first physical layer device operating as a master and a second node with a second physical layer device operating as a slave, the method comprising: transmitting signals from the first physical layer device of the first node to the second physical layer device of the second node using a reference clock local to the first node; transmitting signals from the second physical layer device of the second node to the first physical device of the first node using a clock signal recovered from signals received from the first physical layer device of the first node; performing timing recovery, by the first node, on signals received from the second node; freezing timing recovery, by the second node, of signals received from the first node; switching the first physical layer device of the first node to transmit signals using a clock signal recovered from signals received from the second physical layer device of the second node; and switching the second physical layer device of the second node to transmit signals using a clock signal local to the second node.