PACKET RELAY DEVICE, PACKET RELAY METHOD, AND COMPUTER PROGRAM

摘要

PROBLEM TO BE SOLVED: To suppress waste in throughput capacity of a packet processing part provided in a packet relay device.

SOLUTION: The packet relay device includes: a plurality of packet processing parts having physical ports; a logical port setting part; a distribution destination determination part for determining a distribution destination packet processing part to be a distribution destination of a multicast packet on the basis of flow information when the multicast packet is received; a packet distribution part; an output port determination part for determining an output port on the basis of the flow information; a packet output part; and an output determination part. In the case of determining that the multicast packet is not outputted from the distribution destination packet processing part, the distribution destination determination part receives the multicast packet having the same flow information as the flow information of the multicast packet which is not outputted, and determines the distribution destination packet processing part from the other packet processing parts excluding the distribution destination packet processing part from which the multicast packet is not outputted.

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