Autonomous Equalization of Independent Open ROADMs via NETCONF Protocol.

The ongoing opening of optical network infrastructures is progressively favoring their automation in terms of maintenance and optimization. A proof-of-concept for the autonomous equalization of independent open reconfigurable optical add-drop multiplexers (ROADM)s via network configuration protocol (NETCONF) is provided in this work. The code has been developed in order to prove the feasibility of a software defined network (SDN) framework, formatting and parsing extensible markup language (XML) requests sent via NETCONF to the ROADMs. In addition, representational state transfer (REST) endpoints are exposed providing power level measurements for each deployed connection. It is shown that the developed interface is capable to set the multiplexer attenuation values in order to equalize all the channels composing the propagating spectrum.