Nec Corporation

Kazushi Sugyou

Yasunobu Chiba

The present invention contributes to facilitating: setting for connection between a TEP in a virtual network configured by using a virtual tunnel and a virtual network; and management of the connection. A control apparatus includes: a connection detection unit configured to detect that a virtual machine has newly been connected to one of a plurality of tunnel endpoints each of which functions as an endpoint of a virtual tunnel used for a communication between virtual machines that belong to a virtual network; a virtual network determination unit configured to determine a virtual network to which the detected virtual machine belongs on the basis of information in which virtual machines and virtual networks are associated with each other; and a tunnel endpoint control unit configured to cause, if the tunnel endpoint has not participated in the determined virtual network, the tunnel endpoint to participate in the determined virtual network.

Control apparatus, communication system, tunnel endpoint control method, and program

A communication system includes a plurality of control apparatuses that determine a packet handling operation; a plurality of packet processing units that process packets in accordance with the packet handling operation notified by the control apparatus; an assignment unit that assigns, with respect to each of the packet processing unit, a control apparatus that controls the packet processing unit concerned; and a database that is shared by the plurality of control apparatuses and that stores information related to the packet handling operation; wherein each of the control apparatuses refers to the database to determine the packet handling operation.

Communication system, control apparatus, communication method, control method and program

A technique capable of changing communication services that can be provided by a communication system is provided. A communication system according to the present invention includes: first means that is capable of executing a network function for providing a communication service; and second means that adds second identification information corresponding to first identification information that is assigned to a group of network functions, to a packet belonging to the group, and sends the packet to the network function, which performs packet forwarding within the group based on the second identification information.

Communication system, communication apparatus, control apparatus, network device, communication method, control method, and program

A control apparatus includes a packet handling operation setting unit that sets a packet handling operation for processing a packet for a communication node selected from a plurality of communication nodes. The packet handling operation setting unit sets the packet handling operation for communication nodes out of the plurality of communication nodes other than the selected communication node, in response to the fact that it was possible to set the packet handling operation for the selected communication node.

Control apparatus, control apparatus control method, and program

A control apparatus includes: a connection detection unit configured to detect that a virtual machine has newly been connected to one of a plurality of tunnel endpoints each of which functions as an endpoint of a virtual tunnel used for a communication between virtual machines that belong to a virtual network; a virtual network determination unit configured to determine a virtual network to which the detected virtual machine belongs on the basis of information in which virtual machines and virtual networks are associated with each other; and a tunnel endpoint control unit configured to cause, if the tunnel endpoint has not participated in the determined virtual network, the tunnel endpoint to participate in the determined virtual network.

Growing community of inventors

Tokyo, Japan

Kazushi Sugyou