Patent ID: 7961603
Filing Date: 2011-06-14
Classification: H04L

Abstract:
1. A method for establishing protection-link-weight of a protection-link protecting a portion of a proposed path between a source node and a destination node, wherein the proposed path has an associated bandwidth requirement and an associated resilience class which indicates a priority level of the proposed path, and wherein the protection-link has an associated protection-factor, the protection-factor being set in relation to the level of protection available on the protection-link, the method comprising the steps of: in a node involved in establishment of the proposed path, determining an available bandwidth value for the protection-link; in the node involved in the establishment of the proposed path, determining a reserved bandwidth value for the protection-link, reserved bandwidth being reserved but not currently used; and in the node involved in the establishment of the proposed path, verifying if the protection-link is present in the proposed path: