# meter > The sub-menu lists the traffic meters installed by the controller. Meters enable rate monitoring before output and applying action instructions. ----------- ## openflow/meter **Package:** openflow **Type:** Directory The sub-menu lists the traffic meters installed by the controller. Meters enable rate monitoring before output and applying action instructions. Controller name that installed the meter. Identifier of the meter. Number of meter bands in the meter. List of meter bands that define the rate and how packets are processed. Number of bytes processed by the meter. Number of packets processed by the meter. Time since the meter was installed.