| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a device that transfers cells for a plurality of applications multiplexed on one VC by multiplexing packets for a plurality of host applications in one connection and reading cells in the unit of packet. SOLUTION: The shaping device 1 temporarily queues received cells by each VC, identifies an application on the basis of header information of the received cell and uses a cell write circuit 11 to write the received cells to a cell buffer 10. The device 1 reads the cells queued at a head of the queue of a VC whose time reaches a transmission schedule time, checks a payload type in a header of a reception/transmission cell to recognize a packet a border of the AAL. Furthermore, the device 1 calculates the transmission schedule time by each VC and each flag and stores the calculated transmission schedule time. The device 1 selects a VD that is to be transmitted with the highest priority among a plurality of VCs and changes the value of VPI/VCI in the header at the transmission of cells.</p> |
