| 摘要 |
PURPOSE: To enable a quicker transfer as a packet is the one with higher priority by performing the transfer control to a corresponded output buffer based on the priority and a transfer destination for the packet stored in an input buffer. CONSTITUTION: A transfer processing part, 12 is provided with two kinds of low and high priority transmission buffers storing low and high priority data In the transmission buffer of the processing part 12, control information to be transmitted to a network device is prepared. Subsequently, the data taken out from a main storage device 14 is temporarily stored till the data is transmitted to the network device by the instruction of an instruction processing part 13. When the transmission of data with high priority is performed during the transmission of data with low priority, the transmission from the low priority transmission buffer of the processing part 12 to a network device 20 is interrupted and the high priority packet stored in a high priority transmission buffer is transmitted. After this transmission is terminated, the transmission of the low priority packet from the interrupted low priority transmission buffer is resumed. |
