Patent ID: 9203732
Filing Date: 2015-12-01
Classification: H04L

Abstract:
1. A method of performing fault detection and traffic recovery at a first node in a connection-oriented network, the network comprising a plurality of connections which are terminated at the first node, the method comprising: configuring at the first node a recovery group comprising at least two of the plurality of connections; performing fault detection over each of the connections in the recovery group; determining if at least one recovery group fault condition is met, based on results of the fault detections performed over the connections in the recovery group; when the at least one recovery group fault condition is met, causing traffic on all of the connections in the recovery group to be transferred to backup paths; and when the at least one recovery group fault condition is not met, and a fault has been detected on a connection in the recovery group, causing traffic to be transferred from that connection to a backup path associated with that connection, wherein at least one of the connections of the recovery group has a different end node to other connections in the recovery group; and wherein the backup paths do not form part of the recovery group.