US Patent 10187144 Multi-layer network resiliency systems and methods

Systems and methods for path computation of a service in a multi-layer network including a client layer and a server layer include determining correlations between the client layer and the server layer; assigning data to one of client layer links and server layer links based on diversity between one another responsive to the determined correlations; and determining a resiliency path for a service from a current path using the data to determine diversity between the resiliency path and the current path in the client layer and the server layer.