Packet forwarding device, packet forwarding system, and packet forwarding method

摘要

A packet forwarding device includes: an evaluation unit configured to judge whether or not authentication information is stored in a header, the authentication information being for authenticating communication quality control information stored in the header of a packet transmitted via a network, and evaluate whether or not the authentication information is proper, the evaluation being made when the authentication information is stored in the header; and a forwarding unit that configured to control a communication quality using the communication quality control information, and forward the packet toward a transmission destination, the control being made when the authentication information is evaluated by the evaluation unit to be proper.