A dynamic flow control method and device

Abstract

The invention discloses a dynamic flow control method and device. The method comprises the following implementation steps that control layer equipment obtains a clustering criterion and sets classification labels for activity flows according to the clustering criterion and the service-level agreement SLA levels of the activity flows; the control layer equipment adopts a feature search algorithm to select features from a feature set of the activity flows as a feature subset, wherein the correlation between the classification labels and the features meets a scheduled rule; the control layer equipment adopts a correlation-based feature selection CFS algorithm to compute a score of the feature subset, ends the feature search algorithm when the score of the feature subset meets a predetermined condition and takes the feature subset as an optimal feature subset; and the control layer equipment utilizes the optimal feature subset and the current network status information to compute feature vector values in the activity flows and executes a clustering operation to obtain a flow group to which each activity flow belongs according to the feature vector values of the activity flows. According to the dynamic flow control method and device, the overall flow feature under the actual network condition can be accurately described, and the method and the device are suitable for controlling the overall flow of the network.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a dynamic flow control method and device. Background technique [0002] Software Defined Network (SDN) is a technology proposed around 2008 to design, build and manage networks. The core idea of ​​SDN is to separate the network control forwarding logic from the physical forwarding plane. Among them, the entity responsible for controlling the forwarding logic is called a controller, which can provide an abstract global network view to the upper-layer control program. Based on this view, network administrators can quickly make decisions on how to deal with network traffic on the underlying forwarding plane. The switch stripped of control logic is only responsible for forwarding data packets according to the instructions of the controller. The most commonly used protocol between the controller and the switch is called OpenFlow (OF). [0003] SDN is currently the hot...

AI Technical Summary

Problems solved by technology

[0006] The eigenvectors of the above schemes come from traffic logs and focus on network abuse, and use fixed eigenvector parameters, which cannot accurately describe the characteristics of the overall traffic in actual network conditions; therefore, it is not suitable for controlling the overall network traffic

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