VIRTUAL NETWORK SYSTEM, CONFIGURATION CHANGE METHOD, TUNNEL TERMINATION DEVICE, TUNNEL CONNECTION DEVICE, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To enable the protocol type or the network configuration of a virtual network to be dynamically changed.;SOLUTION: In a virtual network system including a tunnel connection device and a tunnel termination device, a virtual network is configured with a tunnel which is set between the tunnel connection device and the tunnel termination device. The tunnel termination device receives from a prescribed control device a virtual network configuration change directive which includes information on altered virtual network configuration, and selects from one or more tunnel connection devices which configure an altered virtual network specified by the information on altered virtual network configuration a tunnel connection device which is connected by tunnel to the tunnel termination device. Then, the tunnel termination device transmits a setting change directive to the selected tunnel connection device via the tunnel, and the tunnel connection device makes a tunnel connection according to the setting change directive, which conforms to the altered virtual network.;COPYRIGHT: (C)2013,JPO&INPIT