PACKET QUEUING DEVICE, AND PACKET QUEUING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a packet queuing device and method enabling high transfer speed, large buffer capacity and not large scale circuit.

SOLUTION: The packet queuing device 1 stores a packet to be received by a WAN side receiving section 11 in an external buffer memory 61, and stores a packet to be received by LAN side receiving sections 41-1 to 4 in an internal buffer memory 50. In addition, both packets are controlled by the same QoS control section 31, the packet stored in an external buffer storage section 61 is transmitted from LAN side transmitting sections 56-1 to 4 without being stored in an internal buffer storage section 50. Thus, the packet stored in the external buffer storage section 61 is transferred to the internal buffer storage section 50 while using buffers having transfer rate and buffer capacity according to the receiving sections to prevent generation of packet overflow.

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