Patent ID: 8886506
Filing Date: 2014-11-11
Classification: H04L

Abstract:
1. A method comprising: receiving a network model including network elements, wherein a network element is one of a node, a link, a circuit, or a path, wherein at least one of the paths of the network elements has dynamic path restoration capability; receiving network simulation information that includes failure equivalence groups, a failure rate that indicates a rate of failure pertaining to each failure equivalence group, a repair rate that indicates a rate of repair pertaining to each failure equivalence group, a number of repair personnel assigned to each failure equivalence group, and a regeneration value indicating a number of regenerations to occur for each designated path during a network simulation, wherein a failure equivalence group includes one or more links belonging to one or more designated paths in the network model; executing the network simulation of the network model, wherein the executing comprises: calculating an average time of path unavailability for each designated path simulated based on the network simulation; and calculating path unavailability for each designated path simulated based on the network simulation.