Traffic control method based on load prediction in SDN network

Abstract

The invention discloses a traffic control method based on load prediction in a SDN network, belonging to the technical field of communication. The traffic control method based on load prediction in the SDN network of the invention comprises the following steps: S1: a switch feeds back traffic information of each link within a time slot T to a SDN controller; S2: the SDN controller performs statistics on a link traffic periodic change rule according to the link information fed back by the switch; S3: when a prediction time point arrives, the SDN controller performs statistics on a traffic load range on each link to obtain an average traffic parameter F<1> within a time period T<1>; S4: the SDN controller obtains a short period average traffic parameter F<2> within a time period T<2> according to real-time link traffic information fed back by the switch. In the traffic control method based on load prediction in the SDN network of the invention, a traffic forwarding strategy is regulated dynamically through a link traffic predicted value and a real-time link state, link load is reduced effectively and a network congestion problem is solved, thus, the method has better popularization and application value.

Description

technical field [0001] The invention relates to the technical field of communication, and specifically provides a flow control method based on load prediction in an SDN network. Background technique [0002] With the rapid development of computer technology, users put forward higher and higher requirements for network performance, and the data traffic used to run user services is also increasing. There are three main methods of network flow control, namely source control, destination control and data transmission process control. In order to achieve the above control in the traditional network architecture, a large number of protocols need to be added and the configuration is complicated. However, the software-defined network (SDN) is a new type of network architecture, which separates the control plane and the forwarding plane, reduces network complexity, and improves network performance through flexible control algorithms. operating efficiency. The SDN network detects th...

AI Technical Summary

Problems solved by technology

The traffic overload of a certain link or the occupation of a certain burst flow will lead to network congestion, service performance degradation, and inconvenience to customers

Under the existing technology, there is no technology to adjust the traffic distribution in the SDN network in real time according to the change of load. When the network traffic fluctuates greatly, the problem of network congestion that is easy to be caused has not been solved.

Images