Data forwarding method and device of four-layer load balancer, equipment and storage medium

The method for four-layer load balancer data transfer addresses consistency challenges by using local and synchronized tables with RS Hash trees and sequence numbers, reducing resource usage and maintaining high-bandwidth performance in CDN environments.

CN119728542AActive Publication Date: 2025-03-28CHINA TELECOM CLOUD TECH CO LTD
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Patent Information

Application Number
CN202411753679.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-02
Publication Date
2025-03-28
Estimated Expiration
2044-12-02

AI Technical Summary

Technical Problem

In the context of Content Delivery Networks (CDN), existing four-layer load balancing technologies face challenges in maintaining data transfer consistency across multiple load balancers, leading to resource-intensive full-table synchronization, which is not suitable for high-bandwidth scenarios due to high bandwidth, CPU, and memory usage.

Method used

A method for four-layer load balancer data transfer that involves each load balancer maintaining a local table and a synchronized table with an RS Hash tree for consistent routing, allowing load balancers to determine the correct backend server even when the OSFP protocol restarts, reducing the need for full-table synchronization by using sequence numbers to verify rule consistency.

Benefits of technology

This approach ensures consistent data transfer without the need for full-table synchronization, significantly reducing resource consumption and maintaining high-bandwidth performance in CDN environments.

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Abstract

The embodiment of the invention provides a data forwarding method and device for a four-layer load balancer, equipment and a storage medium, and belongs to the field of CDN acceleration, and the method comprises the steps: receiving a connection request, and analyzing the message information of the connection request; querying whether a first forwarding rule corresponding to the connection request exists in a local forwarding table and a synchronous forwarding table according to the message information; if it is queried that the first forwarding rule does not exist in the local forwarding table and the synchronous forwarding table, obtaining back-end information corresponding to a first RS back end from an RS hash tree according to a hash value calculated by the message information; and according to the back-end information, creating a second forwarding rule corresponding to the connection request, storing the second forwarding rule in a local forwarding table, and forwarding the message information to the first RS back-end. According to the method and the device, real-time full-quantity synchronization does not need to be carried out on the forwarding table information of a plurality of four-layer load balancers, so that the resource consumption of the four-layer load balancers is greatly reduced, and large-bandwidth service scenes such as a CDN (Content Delivery Network) are met.
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