摘要 : The Asynchronous Transfer Mode (ATM) tech- nique has been accepted as a basis for the future B-JSDN net- works. In ATM networks, all information is packetized and transferred in small packets of fixed length, called cells. The pac... 展开 The Asynchronous Transfer Mode (ATM) tech- nique has been accepted as a basis for the future B-JSDN net- works. In ATM networks, all information is packetized and transferred in small packets of fixed length, called cells. The packetized information transfer, without flow control between the user and the network and the use of statistical multiplexing, results in a need of a policing mechanism to control the traffic parameters of each virtual connection in order to guarantee the required quality of service (QoS). Policing of the peak cell rate is generally not complex and can be achieved by using a cell spacer or other policing mechanisms (PMs). 收起