Path conversion method, storage medium and terminal equipment

Abstract

The invention discloses a path conversion method based on a controller under an SDN network, a storage medium and terminal equipment. The path conversion method comprises the following steps: constructing a conversion network; a controller in the conversion network is used for planning a network transmission path, and a switch is used for forwarding a flow table to realize data transmission; configuring a conversion network, wherein a new link and an old link are obtained; the controller obtains the working state of the switch in real time, and only issues a flow table on a new link to update the network path; whether the two data packets are the same or not is judged when the switches at the new link and the old link receive the two data packets, and the network path is updated based on the judgment result, so that the optimal forwarding path of the network flow is determined, and data transmission is not easy to lose and out of order.

Description

technical field [0001] The present invention relates to the technical field of communication networks, in particular to a controller-based path switching method and system under an SDN network. Background technique [0002] At present, there are two main solutions for energy-saving data network centers. One is to start with the convenience of network equipment and optimize chip performance to reduce the overall power consumption of network equipment. The other is to consider reasonable planning of network traffic and optimization of resource allocation. Wait to dynamically adjust the supply of network resources to reduce the power consumption of network devices. [0003] For the second method, it has the advantage of flexible control of network data flow, but there are also the following problems: the SDN management domain forms a network with controllers and switches, and data is transmitted in the network. Since the update start time between different SDN management domai...

AI Technical Summary

Problems solved by technology

Since the update start time between different SDN management domains is different, and the data is controlled by different controllers, the SDN network is updated when the data packet crosses the management domains of different controllers during transmission in the network. It will cause data packets to be discarded because the flow table issued by the controller and the flow table actually received by the switch are not consistent, so that the data transmission is out of order, and the business is forced to be interrupted frequently

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