Patent ID: 9130833
Filing Date: 2015-09-08
Classification: H04L

Abstract:
1. A method of segment protection in a communication network, the method comprising the steps of: configuring at least one segment protection domain within the network, the segment protection domain (SPD) comprising a source-node, a destination-node, and at least one peer node, each node having multiple ports; creating a periodic integrity check message frame at the maintenance point on the source-node; multicasting said message frame to the destination-node directly and via the peer node(s); configuring a Σ1 receiver at the destination-node for receiving multicasted message frames; configuring a plurality of maintenance point on the destination-node, each receiving one message frame to be delivered to the destination node; and enabling the Σ1 receiver to select only single message frame from the multicast message frames being received at all maintenance points, and thereby maintaining at least one fault-less path between the source-node and the destination-node.