def match_mac_list
      str = config_get('route_map', 'match_mac_list', @get_args)
      return if str.nil?
      str.empty? ? default_match_mac_list : str.split
    end
def match_mac_list
      str = config_get('route_map', 'match_mac_list', @get_args)
      return if str.nil?
      str.empty? ? default_match_mac_list : str.split
    end
match mac-list m1 m2