Packet communications system and transfer device

摘要

The present invention provides a packet communications system and a transfer device which allow a network control function to be changed at low cost flexibly. The network manager comprises an instructor for transmitting instruction information to the plurality of transfer devices, the instruction information indicating a packet ID (terminal ID) and a control function (function ID) executed on the packet. The transfer device (50) comprises an executer (57) for executing a predetermined control function on the packet, a first memory (53) for storing the packet ID associated with the executer of the control function (57) executed on the packet, a manager (52) for updating the first memory in accordance with the instruction information received from the network manager, and an internal transfer (56) for transferring the received packet to the executer (57) associated with the packet in the first memory (53).