Patent ID: 7689693
Filing Date: 2010-03-30
Classification: H04J,H04L

Abstract:
1. A method, the steps of which are each respectively automatically implemented by a network manager, said method being for determining primary and restoration paths for a new service in a mesh network having a plurality of nodes interconnected by a plurality of links, the method comprising: for each of a plurality of candidate path pairs for the new service, each candidate path pair comprising a candidate primary path and a candidate restoration path for the new service, generating, by the network manager, a path cost associated with said each candidate path pair, wherein the path cost for a candidate path pair is a function of two or more link costs, wherein each link cost is a function of sharability of a different corresponding link within the corresponding candidate restoration path, wherein the sharability of the corresponding link corresponds to the ability of the corresponding link to reserve protection bandwidth that is shared between restoration paths of two or more primary paths; and selecting the primary and restoration paths for the new service from the plurality of candidate path pairs based on the path cost of each candidate path pair, wherein: