Data network link monitoring automatic switching system

Abstract

The invention relates to a data network link monitoring automatic switching system. The data network link monitoring automatic switching system is characterized by comprising a data network monitoring switching device, wherein a first encryption authentication device and a second encryption authentication device both have passthrough protocol functions of the data network monitoring switching device, and a first router and a second router both have administration authority of the data network monitoring switching device. When the data network monitoring switching device finds that a first data link fails and a second data link is still in a standby state, and the data network monitoring switching device issues an instruction to switch the data link, and automatic switching of the data links is achieved. According to the data network link monitoring automatic switching system, the data network monitoring switching device is installed in an encryption internal network. Therefore, the structure of an original data network is not changed, occupied bandwidth is small, original data communication is not influenced, testing of bandwidth redundancy meets requirements, and switching reliability and stable operation of the data links can be guaranteed.

Description

technical field [0001] The invention relates to the field of data network monitoring, in particular to an automatic switching system for data network link monitoring. Background technique [0002] The substation dispatching data network configures two routers as PE routers, and the two routers are interconnected through GE interfaces and serve as backups for each other. The services connected to the two routers realize vlan partitioning, realize VRRP mutual backup for the security zone I, and access the dispatching data backbone network through dedicated 2M lines respectively, and connect to the security zone I business through the interface of a switch respectively. VLAN partitioning is implemented on both switches, and port aggregation is realized through link-aggregation between switches. According to the corresponding security level of the business in the station, access the corresponding vlan interface of the switch. [0003] According to the security level, the contr...

AI Technical Summary

Problems solved by technology

However, in actual operation, it is found that when the main encryption device fails or the interface of the main router freezes, the main data link is interrupted, but the vrrp interface of the main router is in the UP state, and the backup router is still in the standby state. When station personnel find a link failure, manually switch the link

In this case, link faults cannot be detected in time

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