The present invention proposes to dynamically propagate and adjust control planes (such as ASON, GMPLS, PNNI, etc.) via SDN Controller/NMS based on Lower Layer Circuit Protection status. An SDN Controller sends a pre-defined nonzero value to L1CP links whenever an L0 circuits protection health status is good. The SDN Controller sends “Zero” hold off to L1CP links whenever the L0 Circuits dont have protections available, so that L1 CP can heal the circuit immediately on network faults when L0 layers cannot heal it.

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Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.