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Abstract

A transport software defined networking (SDN) controller comprising a receiver and a processor coupled to the receiver. The processor is configured to cause the transport SDN controller to determine a physical topology based on physical layer adjacency discovery messages received from physical layer network elements (NEs), receive advertisement messages from the physical layer NEs, each advertisement message comprising a mapping between an adjacent network layer NE and a port of the associated physical layer NE, extract a network layer adjacency request from some of the advertisement messages indicating a first network layer NE is requesting a network layer connection with a second network layer NE, and setup a physical layer connection between the first network layer NE and the second network layer NE based on the network layer adjacency request, the advertisement messages, and the physical topology.

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First Claim