Path computation systems and methods in control plane based networks for photonic layer topologies

A node in a network with partial connectivity in a photonic layer, the node comprising:

• one or more ports;
• and
• a controller operating a control plane, communicatively coupled to the one or more ports, and configured to
• responsive to one or more nodes in the photonic layer having partial connectivity, receive connectivity information of the one or more nodes in signaling messages responsive to sent setup messages;
• store the connectivity information of the one or more nodes and utilize the connectivity information for path computation;
• after path setup of a service through the one or more nodes, periodically send probe signaling messages over the service;
• and
• receive probe response messages containing updated connectivity information of the one or more nodes and store the updated connectivity information.

A network with partial connectivity in a photonic layer, the network comprising:

• an originating node;
• one or more intermediate nodes;
• and
• a terminating node communicatively coupled to the originating node and the one or more intermediate nodes,
• wherein, responsive to one or more nodes in the photonic layer having partial connectivity of the one or more intermediate nodes or the terminating node, the originating node receives connectivity information of the one or more nodes in signaling messages responsive to sent setup messages,
• wherein, the originating node stores the connectivity information of the one or more nodes and utilize the connectivity information for path computation,
• wherein, after path setup of a service through the one or more nodes, the originating node periodically sends probe signaling messages over the service, and
• wherein the originating node receives probe response messages containing updated connectivity information of the one or more nodes and stores the updated connectivity information.