Abstract: A communication system according to the present invention includes: a mobile terminal; a base station; an operation/maintenance server; and a gateway that has a DPI function that detects whether or not uplink data received from the mobile terminal is illegal traffic. If the base station detects that an amount of the traffic of uplink data exceeds a threshold, the base station transmits an alarm, that denotes that the amount of the traffic of uplink data exceeds the threshold, to the operation/maintenance server. If the operation/maintenance server receives alarm from the base station, the operation/maintenance server transmits to the gateway an activation command that causes the gateway to activate the DPI function.

Abstract: A communication system according to the present invention includes: a mobile terminal; a base station; an operation/maintenance server; and a gateway that has a DPI function that detects whether or not uplink data received from said mobile terminal is illegal traffic. If said base station detects that an amount of the traffic of said uplink data exceeds a threshold, said base station transmits an alarm, that denotes that the amount of the traffic of said uplink data exceeds the threshold, to said operation/maintenance server. If said operation/maintenance server receives said alarm from said base station, said operation/maintenance server transmits to said gateway an activation command that causes said gateway to activate said DPI function.

Abstract: A first controller calculates a first read-out speed based on the traffic volume in a first buffer and information of a request for the first read-out speed, sets the speed in a first scheduler. The first controller also generates information of a request for a second read-out speed based on the traffic volume in the first buffer. A second controller calculates the second read-out speed based on the traffic volume in a second buffer and the information of the request for the second read-out speed, sets the speed in a second scheduler. The second controller also generates information of a request for the first read-out speed based on the traffic volume in the second buffer.

Abstract: A first controller calculates a first read-out speed based on the traffic volume in a first buffer and information of a request for the first read-out speed, sets the speed in a first scheduler. The first controller also generates information of a request for a second read-out speed based on the traffic volume in the first buffer. A second controller calculates the second read-out speed based on the traffic volume in a second buffer and the information of the request for the second read-out speed, sets the speed in a second scheduler. The second controller also generates information of a request for the first read-out speed based on the traffic volume in the second buffer.

Abstract: A network device is provided. The network device may include at least one set of buffers to buffer network traffic; a monitor to determine varying amounts of available buffer space associated with the buffers; and logic to assign reading rates to the respective buffers for scheduling output of the buffered traffic. The logic may be configured to increase an assigned reading rate associated with one of the buffers to at least one elevated reading rate based on a reduction of the available buffer space in the one buffer to a first amount and reset the at least one elevated reading rate to the assigned reading rate based on a subsequent increase in the available buffer space beyond that of the first amount.

Abstract: A cell disposal avoidance system is provided that can avoid disposal of cells resided in the QoS buffer when a traffic of a specific QoS class in an ATM switch increases. The ATM switch includes a storage cell number monitor, a software data section 813, and a software controller 812. The storage cell number monitor monitors congestion of plural QoS buffers in the buffer 3, 5. The software data section 813 stores a cell reading priority (WRR value) attached for each QoS buffer. The software controller 812 dynamically changer; the WRR value when congestion of a QoS buffer is in a congestion state (at generation of cell disposal or buffer congestion alarm) and increases the WRR value of the QoS buffer in a cell disposal state. Cells are divided in a time division mode according to the weight of the WRR value and read in a round format from the QoS buffer. The ATM switch resets the WRR value to an initial value when the congestion of the QoS buffer ceases.

Abstract: A cell disposal avoidance system is provided that can avoid disposal of the cells resided in the QoS buffer when a traffic of a specific QoS class in an ATM switch increases. The ATM switch includes a storage cell number monitor, a software data section 813, and a software controller 812. The storage cell number monitor monitors congestion of plural QoS buffers in the buffer 3, 5. The software data section 813 stores a cell reading priority (WRR value) attached for each QoS buffer. The software controller 812 dynamically changes the WRR value when congestion of a QoS buffer is in a congestion state (at generation of cell disposal or buffer congestion alarm) and increases the WRR value of the QoS buffer in a cell disposal state. Cells are divided in a time division mode according to the weight of the WRR value and read in a round format from the QoS buffer. The ATM switch resets the WRR value to an initial value when the congestion of the QoS buffer ceases.

Abstract: A cell disposal avoidance system is provided that can avoid disposal of the cells resided in the QoS buffer when a traffic of a specific QoS class in an ATM switch increases. The ATM switch includes a storage cell number monitor, a software data section 813, and a software controller 812. The storage cell number monitor monitors congestion of plural QoS buffers in the buffer 3, 5. The software data section 813 stores a cell reading priority (WRR value) attached for each QoS buffer. The software controller 812 dynamically changes the WRR value when congestion of a QoS buffer is in a congestion state (at generation of cell disposal or buffer congestion alarm) and increases the WRR value of the QoS buffer in a cell disposal state. Cells are divided in a time division mode according to the weight of the WRR value and read in a round format from the QoS buffer. The ATM switch resets the WRR value to an initial value when the congestion of the QoS buffer ceases.

Abstract: A cell disposal avoidance system is provided that can avoid disposal of cells resided in the QoS buffer when a traffic of a specified QoS class in an ATM switch increases. The ATM switch includes a storage cell number monitor, a software data section 813, and a software controller 812. The storage cell number monitor monitors congestion of plural QoS buffers in the buffer 3, 5. The software data section 813 stores a cell reading priority (WRR value) attached for each QoS buffer. The software controller 812 dynamically changes the WRR value when congestion of a QoS buffer is in a congestion state (at generation of cell disposal or buffer congestion alarm) and increases the WRR value of the QoS buffer in a cell disposal state. Cells are divided in a time division mode according to the weight of the WRR value and read in a round format from the QoS buffer. The ATM switch resets the WRR value to an initial value when the congestion of the QoS buffer ceases.