Enhancing Whitebox Optical SDN Control Using OpenROADM Models

In this paper, the authors exploit the OpenROADM standard model for the management and control of commercial ROADMs via an open optical SDN controller. Since each ROADM model has its own operating system, characterized by specific proprietary languages and interfaces, an additional middleware software layer must be introduced between the controller and the ROADM devices. This middleware aims to expose commercial devices through the OpenROADM model. Furthermore, the controller can send requests via the OpenROADM standard to the middleware.