Load balancing method based on combined application of reverse isolation device and isolation gateway

Abstract

The invention provides a load balancing method based on the combined application of reverse isolation devices and an isolation gateway. The load balancing method comprises the following steps of: operating an agent program on file servers of the reverse isolation devices, and respectively establishing transmission control protocol (TCP) connection between each file server and the isolation gateway; detecting the health condition of a link where each reverse isolation device is located by using a TCP-based private health detection mechanism; and allocating reverse service data according to the health condition of the link where each reverse isolation device is located. According to a technology, the isolation gateway performs service availability detection on servers in front of isolation devices; and when the buffered service data of each server are overloaded or the self state of each server fails, the isolation gateway sends a response message according to the received detection message to determine the health condition of the current link, and performs load balancing according to the health condition. The method is high in load balancing efficiency, the deployment of a bandwidth expansion and network safety scene is realized, and requirements on high safety, high bandwidth and high reliability of the combination of the reverse isolation devices and the isolation gateway are met.

Description

technical field [0001] The invention relates to load balancing technology, in particular to a load balancing method based on the combined application of a reverse isolation device and an isolation gateway. Background technique [0002] Reverse isolation device: the reverse type special safety isolation device for electric power network, which is a safety protection device with special hardware with various control functions, located between the dispatching data network and the public information network, used for safety One-way data transfer from Zone III to Security Zone IV. [0003] Isolation gateway: A gateway that isolates two connected networks based on unidirectional forwarding, including but not limited to routers, switches, or servers. [0004] Load balancing: According to the pre-configured load balancing algorithm, user traffic accessing the same IP address is distributed to different servers. It distributes user traffic to multiple equivalent servers through vir...

AI Technical Summary

Problems solved by technology

[0012] Based on this, it is necessary to provide a load balancing application based on a reverse isolation device and an isolation gateway to solve the problems that the reverse business data cannot be reasonably distributed in load balance and the business data processing efficiency is low based on the above-mentioned existing load balancing technology. balanced approach

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