SDN APPARATUS AND METHOD FOR MONITORING OF NETWORK STATEMENT IN SOFTWARE-DEFINED NETWORK

摘要

When network status monitoring is performed through a controller operating on a software-defined network (SDN), the actual value of the status information is collected from the switch on the SDN according to a predetermined collection period, and a status And the state information collected in the collection period and the calculated predicted value are used as reference information for the preset network control. The actual value of the state information finally received from the switch, the actual value determined at the last reception time, The rate of change of the value, and the elapsed time from the last reception time.