OpenFlow COMMUNICATION SYSTEM AND OpenFlow COMMUNICATION METHOD

摘要

An OpenFlow switch controls transmission and reception of a packet according to a flow entry. Each of the flow entries contains a matching condition showing a communication flow of the packet and an action showing processing on the packet. An OpenFlow controller generates a registration flow entry which is stored in a flow table of a specific OpenFlow switch arranged on a route of the communication flow. An encapsulated packet is generated by relating the registration flow entry and an ordinary packet. The specific OpenFlow switch extracts the registration flow entry from the encapsulated packet in response to the reception of the encapsulated packet to produce a new flow entry and executes the action shown in the new flow entry.