Network system including resources reservation

摘要

A network system comprising terminals and relaying nodes having a reservation message processing unit for transferring a packet wherein a packet receiving terminal 3 requests a reservation of network resources. The packet receiving terminal 3 transmits to a packet transmitting terminal 1 a request message in which a reservation request condition is stored in order to request a resource reservation, the packet transmitting terminal 1 having received the request message transmits to the relaying node 2 on the same route as the packet an acknowledgement message in which the reservation request condition is stored. Each relaying node 2 provides a resource reservation for the home relaying node according to the reservation request condition in the acknowledgement message and transfers the acknowledgement message to the same route as the packet. After the acknowledgement message has passed through all the relaying node 2, and when the packet receiving terminal has received the acknowledgement message, a network resource reservation procedure is completed. <IMAGE>