SDN CONTROLLER-BASED MULTICAST METHOD AND SYSTEM IN HOST OVERLAY NETWORK, DEVICE, AND MEDIUM

摘要

The present application relates to the technical field of artificial intelligence. Disclosed are an SDN controller-based multicast method and system in a host overlay network. Multicast group information of an overlay network is controlled in a centralized manner by adopting an SDN controller; a multicast flow rule is generated according to the understanding of the whole network topology by the controller, and issued to a distributed virtual router on a host so as to be executed; when a data plane flow table is delivered, according to obtained interface information, packet information is directly sent to an interface where a multicast group member is located; a flooding problem of a multicast packet on a second layer is well restrained by using an accurate delivery mode, thus avoiding the phenomenon of heavy network burdens.