Patent ID: 9450778
Filing Date: 2016-09-20
CPC Classification: H04L

Claim Text:
1. A method of configuring protection for point-to-multipoint traffic in a connection-oriented network, based on a ring topology, the method comprising: configuring a number of working path intermediate nodes to establish a point-to-multipoint working path between a source node and a plurality of destination nodes using the working path intermediate nodes; and configuring at least one of the working path intermediate nodes and/or destination nodes to establish a point-to-multipoint protection path over a plurality of links, wherein the point-to-multipoint protection path is for a possible point of failure in the working path, the point-to-multipoint protection path connecting a first working path intermediate node upstream of the point of failure with all destination nodes served by the working path downstream of the point of failure, wherein the first working path intermediate node is between the point of failure and the source node, such that the point-to-multipoint protection path extends from the first working path intermediate node between the point of failure and the source node to all of the destination nodes downstream of the point of failure.