Traffic scheduling method and system under multi-square ring structure

The invention relates to the technical field of computer networks, and provides a flow scheduling method and system under a multi-square ring structure, and the method comprises the steps: obtaining a global network state of a topology network which comprises multiple stages, the multi-stage topology network comprises V nodes, and the V nodes form a plurality of network links; under the condition that a network link in the topological network fails, determining one or more alternative paths according to the grid state; and under the condition that the number of the alternative paths is multiple, determining the priority of the alternative paths according to the constraint condition, and the priority is used for representing the sequence of data traffic transmission. According to the method, path planning is carried out on the service flow under the topology network structure, and the instruction is sent to the equipment according to the priority of the planned path, so that the problem of backbone network flo