| 摘要 |
<P>PROBLEM TO BE SOLVED: To easily generate a virtual network without allowing users to obtain information on individual physical networks when the virtual network is constituted across the multiple physical networks. <P>SOLUTION: A network system includes: multiple physical network management servers for managing multiple physical networks constituted by multiple communication systems for allowing users to perform communication and multiple routers; and a virtual network management server for managing virtual networks for connecting the communication systems via the multiple physical networks. The virtual network management server acquires physical network configuration information, generates management information to manage the multiple physical networks as one abstract network, and constitutes the abstract network by transmitting the generated management information to the respective physical network management servers and the respective routers. <P>COPYRIGHT: (C)2012,JPO&INPIT |
