Patent ID: 6044064
Filing Date: 2000-03-28
Classification: H04J,H04L,H04Q

Abstract:
In a telecommunications network having a plurality of interconnected nodes and at least one dynamic transmission restoration domain including a subset of said interconnected nodes wherein at least one alternate path is established to reroute traffic disrupted when a path in said domain is cut, a method of preventing signals for verifying the integrity of various paths in said domain from venturing outside of said domain, comprising the steps of:a) determining at each node in receipt of a signal whether its access and egress ports are adaptable to dynamically restore disrupted traffic;b) examining said signal to determine if a path verification message is embedded therein if said access and egress ports of said each node are determined not adaptable to dynamically restore disrupted traffic; andc) removing any path verification message found to be embedded in said signal.