def METHOD_NAME(self):
    """
    Loads the settings from the persistent settings file.
    """
    self._settings = LocalConfig.instance().loadSectionSettings(self.__class__.__name__, DYNAMIPS_SETTINGS)
    if not os.path.exists(self._settings["dynamips_path"]):
        dynamips_path = shutil.which("dynamips")
        if dynamips_path:
            self._settings["dynamips_path"] = os.path.abspath(dynamips_path)
        else:
            self._settings["dynamips_path"] = ""
    # migrate router settings to the controller (templates are managed on server side starting with version 2.0)
    Controller.instance().connected_signal.connect(self._migrateOldRouters)