VERFAHREN UND VORRICHTUNG FÜR EIN MEHRSCHICHTIGES NETZWERK IN SONET/SDH

摘要

Each node of a telecommunications network determines a connection type attributes available for each signal type supported by the node. Each signal type represents a different connection routing layer within the telecommunications network. Adaptation costs involved in traversing from one connection routing layer to another connection type attributes and adaptation costs are included in a link state advertisement broadcasted by each node in the telecommunications network. A route calculation is performed for a desired signal to determine a route through the telecommunications network for the signal. The route calculation takes into account adaptation costs in determining the shortest route for the signal through the telecommunications network.