| 摘要 |
<p>The present invention implements a given policy route control defined in a virtual network configuration without transmitting a packet to a controller when a new flow is generated. Specifically, in a virtual network, with regards to the policy route control which is redirected between a virtual interface associated with a physical switch and a virtual interface defined only on a virtual node, a physical interface associated with the transfer destination of the virtual interface on the virtual node is specified and a switching operation is set as a policy filter inside the physical switch. When a redirect transfer is performed in the virtual network on the basis of the policy, a transfer rule corresponding to the policy is preset in a flow table that evaluates, on the basis of information indicating whether or not the policy in the virtual network is a rule corresponding to a port of an actual physical switch, whether to regard the transfer rule a static setting or a dynamic setting triggered by the detection of a terminal, and that determines the switching operation of the physical switch.</p> |
