def match_interface
      str = config_get('route_map', 'match_interface', @get_args)
      intf = str.empty? ? default_match_interface : str.split
      # Normalize by downcasing
      intf.map!(&:downcase)
    end
def match_interface
      str = config_get('route_map', 'match_interface', @get_args)
      intf = str.empty? ? default_match_interface : str.split
      # Normalize by downcasing
      intf.map!(&:downcase)
    end
match interface port-channel1 Null0 (and so on)