A load balancing method based on DPI prediction

Abstract

The invention belongs to the field of network technology research, and particularly relates to a load balancing method based on DPI prediction, and the method comprises the following steps: dividing input flow into a flow according to a quintuple and a serial number, and determining which application data the flow belongs to through a DPI technology analysis protocol and application characteristics; Determining the characteristics of which application the traffic belongs, and selecting the characteristic library model of the correct application for matching; Calculating a Hash value through the data flow information to inquire the historical record library content, and estimating the current flow condition to obtain an estimated value of the flow size; The subordinate node information is acquired by using the dynamic monitoring system, and the state of the server is controlled in real time. Pre-distribution is carried out by using the estimated value and node real-time information convection, so that the complexity of a load balancing strategy is reduced, calculation is transferred to load balancing prediction, and the overall optimization of the load balancing strategy is realized.

Description

technical field [0001] The invention belongs to the field of network technology research, and in particular relates to a load balancing method based on DPI prediction. Background technique [0002] The balance effect of load balancing in network nodes and the length of processing time determine the performance of the entire network system to a large extent. With a lot of research done on load balancing technology, many various methods have been proposed. For example, the load balancing strategy based on DNS proxy. Although this method considers the effect of load balancing by replacing the response server, it does not take into account the status of each server. Unexpected situations cannot be quickly responded to, and the data request itself is not considered. factors; the load balancing strategy based on the protocol stack is to classify the traffic based on the analysis of the seven-layer structure of the data packet. The data link layer, network layer, transport layer,...

AI Technical Summary

Problems solved by technology

For example, in the "A DPI-Based Application Layer Traffic Load Balancing Method" disclosed in the patent document of application number 201710968835. The output dynamic priority is used as one of the basis for load balancing, combined with the static priority to select the optimal service server, but the splitting or mirroring takes too much time to analyze the service, and the traffic in the serial part needs the dynamic priority as a parameter, so the two A module has a waiting relationship, which affects the overall performance

In addition, the content parsed using DPI technology is not clear

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