Method and system for multi-layer network routing

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 routing layer in the node are calculated. The 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 the various connection type attributes, availability, and adaptation costs in determining the shortest route for the signal through the telecommunications network.

主权项

1. A computer-implemented method for routing in a network, the method comprising:
establishing a pseudo node that represents potential connectivity provided by a server layer among nodes in a client layer of a multi-layer network; creating one or more link state advertisements at a first node in the client layer as if the one or more link state advertisements were generated by the pseudo node itself, the one or more link state advertisements including information about a link between the first node and the pseudo node; transmitting the one or more link state advertisements from the first node in the client layer to at least one other node in the client layer; and enabling one or more connections among two or more nodes in the client layer via the pseudo node.