Patent ID: 7796644
Filing Date: 2010-09-14
Classification: H04B,H04J,H04L

Abstract:
1. A method for reserving spare bandwidth for a link in a communication network including a plurality of links comprising the steps of: monitoring the volume of traffic routed through each link of the communication network; simulating a single link failure for each link of the communication network; determining for each link the difference between a volume of traffic which would need to be rerouted through each link and a corresponding volume of traffic removed from each link for each of the simulated single link failures; determining for each link the maximum value of the determined differences for all simulated single link failures; reserving for each link an amount of spare bandwidth equivalent to the determined maximum difference; receiving a request for a communication connection; evaluating maximum additional spare bandwidth need for each link if the requested communication is accepted and in the event of a single link failure; responsive to the evaluating, accepting the communication request only in the presence of sufficient available bandwidth for each of the links.