Patent ID: 6456589
Filing Date: 2002-09-24
Classification: H04L

Abstract:
In a telecommunications network having a plurality of interconnected nodes and a central management system for monitoring and controlling the respective operations of said plurality of nodes, said network being provisioned with a plurality of restoration processes at least one of which to be used by at least one portion of said network for restoring traffic disrupted in said network, a method of operating only one of said plurality of restoration processes at any one time, comprising the steps of:broadcasting a disable process message to those nodes in said network provisioned with a given restoration process, wherein said given restoration process is a distributed restoration algorithm (DRA); determining whether each of said given process provisioned nodes is effecting an active restoration process; starting another restoration process if it is determined that all said given restoration process provisioned nodes are no longer actively effecting said given restoration process, wherein said another restoration process is a non-DRA scheme; and repeating the broadcasting, determining and starting steps as needed if additional restoration processes are being effected by other nodes in said network so that at any time only one restoration process is being effected for restoring disrupted traffic in said network.