Patent ID: 7599295
Filing Date: 2009-10-06
Classification: H04L

Abstract:
1. A system for passive alarm propagation and suppression in a communication network, comprising: a packet-based network, having a first set of domains providing connectivity to a second set of domains, and a plurality of edge nodes; a plurality of customer nodes, wherein each of the plurality of customer nodes connects to at least one of the plurality of edge nodes; and a table correlating a plurality of connections between each of the plurality of customer nodes and at least one of the plurality of edge nodes; wherein the plurality of edge nodes comprises: a first edge node connecting to a first customer node; and a second edge node connecting to a second customer node; wherein the first edge node checks the table to determine the connection between the first edge node and the second edge node when the first customer node sends a message to the first edge node indicating a connection failure between the first customer node and the second customer node.