Paketkommunikationssystem mit QoS-Steuerungsfunktion

摘要

A packet communication system (100) of the present invention has a first mode, a second mode and a third mode to be applied to input packets. The first mode is a mode that decides priority of the packet by at least one of the address information and the application information, the second mode is a mode that decides priority of the packet by the DS value, the third mode is a mode that decides to rewrite the DS value by at least one of the address information and the application information. A control unit (110) of the packet communication system switches a mode to be applied to an input packet between the first mode, the second mode and the third mode based on the packet header information of the input packet.