A computer implemented method for validating a device during installation to a software defined network (SDN). The method comprises receiving data associated with the device during installation thereof. Validating the device using the received data. Providing a master SDN controller for controlling the SDN network. Generating a co-controller by a master SDN controller containing device validation data. Dispatching the co-controller to the device during installation. Controlling installation of the device to the software defined network based on the device validation data.