基于拍卖策略的SDN多控制器负载均衡算法

iming at the single adjustment strategy of the current SDN multi-controller load balance algorithm and the multiple migration of the switch, a SDN multi-controller load balance algorithm based on auction stretegy(ASLB) is proposed. The value of the switch is quantified and the switch to be migrated is selectes based on the quantization result. The selection of target controller is implemented by the unoverloaded controller bidding switch, and the problem of load balance is converted into a resource auction problem. At the same time, in order to avoid multiple migrations of switch, the bidding qualification of the controller is reviewed during the auction phase. The experimental results show that compared with the current load balance algorithm, the ASLB algorithm can solveeffectively the problem of multiple migration of the switch and achieve better load balance. At the same time, with the increasement of Packet-In message\'s rate, multiple controllers are in an overload state, the ASLB algorithm has lower response time and migration time.