SDN (self-defending network) flow measuring method based on Open Flow

• Main Authors: CHEN WEI, LI WEIMING, ZHAO PENG, LUO XUCHENG, LIU YAJUN, LIU MENGJUAN, LIU QIAO, TANG SIJIAN, ZHANG XIANG
• Format: Patent
• Language: Chinese; English
• Published: 24.12.2014
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention discloses a SDN (self-defending network) flow measuring method based on Open Flow. The SDN flow measuring method based on the Open Flow comprises the following steps of generating a measurement flow table item by using a controller according to a flow measurement requirement; and transferring an operational order of a forwarding flow table item corresponding to data flow meeting the flow measurement requirement in a corresponding exchanger to a flow measurement flow table so that the data flow is accumulated by a counter of the measurement flow table item. The controller actively transmits flow querying information to the exchanger so as to query flow when the flow measurement requirement is inputted, new flow arrives and a time interval is maximum, and passively receives flow information reported by the exchanger when the measurement flow table item is deleted, so that the flow information is acquired and counted, and a result is stored in a flow statistical result table. By the measurement flo