Patent ID: 9154422
Filing Date: 2015-10-06
Classification: H04L

Abstract:
1. An apparatus for policing a flow of data units along a path in a data network, said apparatus comprising: a receiver for receiving data units, respective data units having readable congestion indications associated therewith on receipt by the apparatus indicating whether or not said data units have experienced or are expected to experience congestion on the path; a data unit monitor operable to read the congestion indications associated with respective received data units; a policer comprising: a rate-controller; wherein said register updater is operable to update the reserve value at a predetermined rate, and further to update the reserve value in dependence on congestion indications associated with respective received data units; and wherein said rate-controller comprises a buffer operable to delay one or more of said received data units for a period of time dependent on the congestion indications respectively associated with said one or more of said received data units.