SISTEMA DI COMUNICAZIONE

摘要

A data communications system comprising a plurality of nodes INTERCONNECTED BY A plurality of links in which a subset of the nodes and links form a worker path for carrying data through the communication system. The system comprises means for allocating the links and nodes a cost value relative to the worker path and means for selecting based on the cost value a further subset of the nodes and links to form a protection path for the worker path. A corresponding method.