Patent ID: 7649851

Claim:
A virtual network management method for a virtual network management system configuring different virtual networks for different services, including: at least one network switch; at least one managed server for managing a service; a service management means for managing the service to be processed by the managed server; and a virtual network management means for controlling connections by the network switch, the method comprising the steps of: allowing the service management means to hold a mapping of the service and the virtual network; causing the managed server to send a notification including address information of the managed server to the virtual network management means, upon status change of the managed server; causing the virtual network management means to receive the notification including the address information from the managed server; causing the virtual network management means to receive information from the network switch, wherein the information from the network switch indicates a relation between the address information of the managed server and a connection port of the network switch; causing the virtual network management means to identify the managed server and the connection port of the network switch dynamically upon status change of the managed server, by referring to the address information included in the received notification and the information which indicates the relation between the address information of the managed server and the connection port of the network switch; and causing the virtual network management means to configure the virtual network corresponding to the service dynamically, for the identified connection port.