1+1 redundancy backup method and system for communication device

Abstract

The invention discloses a 1+1 redundancy backup method and system for a communication device, relating to the field of primary / standby switchover of the communication device. The method comprises thesteps that when an application of a primary disk of the communication device creates a base socket, the primary disk sends control block information of the base socket to a standby disk; the standby disk creates the same base socket as the primary disk according to the control block information; when the application of the primary disk sends communication data through the socket of the primary disk, the primary disk sends the communication data to the standby disk; the standby disk backs up the communication data through the socket corresponding to the sent communication data, then the standbydisk sends backup confirmation information to the primary disk; and the primary disk receives the backup confirmation information and then broadcasts the backup confirmation information to the application. An information framework acquiring primary and standby synchronization states asynchronously is provided for the application while a standard socket interface is maintained unchanged, so that abase highly-available service is provided for the application.

Description

technical field [0001] The invention relates to the field of active-standby switchover of communication equipment, in particular to a 1+1 redundant backup method and system for communication equipment. Background technique [0002] When using data communication and transmission equipment, in order to achieve high reliability of business (that is, the probability of business interruption is very low), 1+1 redundant backup is generally used for key modules to improve the disaster recovery capability of the system. Specifically, the control board of the communication device mainly implements the functions of the control plane and the management plane of the device. For dynamic services, once the control board fails, without redundancy protection, it will lead to disconnection or even Serious Consequences of Business Interruption. Therefore, 1+1 redundant backup of control boards has become a basic requirement for telecommunications equipment to connect to the network. [0003...

AI Technical Summary

Problems solved by technology

[0007] (1) When modifying the code logic, it is generally based on the blocking full-volume notification mode, and less consideration is given to message suppression and high concurrency. Practical testing needs of the specification

[0008] (2) When modifying the code logic, only specific logic modifications are made for the TCP protocol, and the generalization of the TCP / UDP (User Datagram Protocol, User Datagram Protocol) / IP layer cannot be realized, and the scope of application is relatively single

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