private void changePortStateAtMaster(DeviceId deviceId, PortNumber portNumber, boolean enable) { DeviceProvider provider = getProvider(deviceId); if (provider != null) { log.info("Port {} on device {} being administratively brought {}", portNumber, deviceId, (enable) ? "UP" : "DOWN"); provider.changePortState(deviceId, portNumber, enable); } else { log.warn("Provider not found for {}", deviceId); } }