A method for reducing the problem space associated with determining intra-network circuit provisioning paths within a large communications network by selecting only a sub-set of the total network nodes, including the start-node and end-node of a communication path by bounding, using one of a plurality...http://www.google.de/patents/US7372816?utm_source=gb-gplus-sharePatent US7372816 - Method and apparatus for optimizing routing through network nodes