面向综合CNI 系统的双机热备份切换方案设计

本文针对综合CNI 系统主备切换功能的实现，提出了一种基于表决算法的双机热备份主从模式的设 计方案，从设计思路、设计原则以及冗余备份、主备切换的故障故障检测等方面进行详细分析，对上电确定主 备流程、主切备流程以及备切主流程进行详细设计，通过方案验证，在不增加硬件基础上，能够快速无缝地将 相应的功能控制切换至备模块，提高了整个综合CNI 系统的可靠性，保障系统不间断运行。

Design of Dual-System Hot Backup Switching Scheme for Integrated CNI System

Aiming at the implementation of the master-slave switching function of the integrated CNI system, a design scheme of the master-slave mode of dual-system hot backup is proposed based on the voting algorithm, and the redundancy backup, design idea, design principles and fault detection of main standby switching are analyzed. It also designs the main and standby procedures for power-on determination, main cut and standby, and main standby cut. Through the verification of the scheme, the corresponding function control can be quickly and seamlessly switched to the standby module without increasing the hardware, which improves the reliability of the whole integrated CNI system and ensures the uninterrupted operation of the system.