SOFTWARE DEFINED NETWORK CONTROLLER IN SOFTWARE DEFINED NETWORK, METHOD FOR GENERATING FAULT RECOVERY GROUP USING SAME, AND FAULT RECOVERY METHOD

摘要

A method for generating a fault recovery group, to generate a fault recovery group for a plurality of switches by a software defined network controller connected to a plurality of switches through a network, comprises: checking an input port and an output port for each of the switches to which packets are to be transmitted by being positioned between a first host and a second host; matching output ports confirmed for each input port with respect to each switch to set an input port-fault recovery output port group of a corresponding switch; setting a priority for the output ports included in the input port-fault recovery output port group on the basis of a transmission speed and a hop count of the output ports included in the input port-fault recovery output port group of each switch; and generating per-switch input port-fault recovery output port group information and a per-switch flow rule including a priority of the corresponding output ports.;COPYRIGHT KIPO 2019