NETWORK SYSTEM, SWITCH AND METHOD OF DETECTING CONNECTED TERMINAL Russian patent published in 2016 - IPC H04L12/28 

FIELD: information technology.

SUBSTANCE: in OpenFlow network, it is determined to which port of any node device is connected a terminal, which is connected to a group of node devices using only MAC-address of source and port number of packet transmitted from terminal. In particular, node device compares a set from number of port and information of MAC-address of source packet transmitted from terminal to node device, with set(s) of number of port and MAC-address information, in preliminary search table to verify whether they correspond to each other. If comparison does not result in a match, node device notifies controller using OpenFlow-function interrogation information (packet-in message). Also, node device compares destination MAC-address information of packet with set(s) of MAC-address information contained in final search table to verify whether they correspond to each other.

EFFECT: enabling network devices to be controlled externally to achieve flexible control, such as balancing and displacement of load.

7 cl, 11 dwg