A CONTROL APPARATUS, A COMMUNICATION SYSTEM, A COMMUNICATION METHOD AND A RECORDING MEDIUM HAVING RECORDED THEREON A COMMUNICATION PROGRAM

摘要

[Technical Problem] There is a limitation in the number of identifiers for a virtual network, and it is difficult to establish a large scale network using the virtual network. [Solution to Problem] A control apparatus for controlling packet transfer between terminals belonging to a first virtual network identified by a first identifier comprising: a network configuration information management means for holding configuration information on a second virtual network identified by a second identifier so that the terminals belong to the second virtual network; and a path control means for controlling communication between the terminals based on the configuration information on the second virtual network.