Patent ID: 7443801
Filing Date: 2008-10-28
Classification: H04L

Abstract:
1. A method for diagnosing network congestion between a source node and a destination node comprising the steps of: identifying a first set of nodes between the source and destination nodes that are shared by both a forward path from the source node to the destination node and a reverse path from the destination node to the source node; calculating path delays between nodes in said first set of nodes to identify a reduced set of possible suspect path segments; identifying a second set of nodes within said reduced set of possible suspect path segments that are not shared by both the forward path from the source node to the destination node and the reverse path from the destination node to the source node; calculating path delays between nodes in said second set of nodes to identify a further reduced set of possible suspect path segments; and calculating link delays of links remaining in said further reduced set of possible suspect path segments.