| 摘要 |
<p>An information system, a control device, a method of managing a virtual network and a program are provided, whereby it is possible to identify a virtual network affected by a change in the state of a forwarding node, without causing flow in the virtual network. The information system includes a plurality of forwarding nodes provided with a packet processing unit that performs processing of a received packet using a processing rule conforming to the received packet; and a control device that causes the plurality of forwarding nodes to operate as a virtual network by setting a processing rule in the forwarding nodes. The control device is provided with a virtual network path information storage unit that stores a correspondence relationship between the virtual network and a forwarding path configured by the forwarding nodes; and a virtual network control unit that identifies a virtual network that is affected by a change in a state of any forwarding node among the plurality of forwarding nodes, by referring to the virtual network path information storage unit.</p> |
