def set_impact_state(self):
        """We just go an impact, so we go unreachable
        But only if we enable this state change in the conf

        :return: None
        """
        cls = self.__class__
        if cls.enable_problem_impacts_states_change:
            logger.debug("%s is impacted and goes UNREACHABLE", self)

            # Track the old state (problem occured before a new check)
            self.state_before_impact = self.state
            self.state_id_before_impact = self.state_id
            # This flag will know if we override the impact state
            self.state_changed_since_impact = False
            # Set unreachable
            self.set_unreachable()
We just go an impact, so we go unreachable
        But only if we enable this state change in the conf

        :return: None