通信与信息技术Issue(5)：26-29,87,5.
基于RNS和Track诊断的省级气象应急网络系统
Provincial meteorological emergency network system based on RNS and Track diagnosis
摘要
Abstract
In response to the extreme scenario of complete ground leased line outages,this paper designs and implements an auto-matic switching provincial-level meteorological emergency network system based on RNS(Ruijie Network Service)and Track diagnosis.This network architecture system continuously monitors the status of the main network's dedicated lines in real-time.When a ground-based dedicated line interruption is detected,it automatically dials up to establish an IPsec VPN tunnel with the provincial center,switch-es the routing to take over meteorological data transmission services.Once the ground-based dedicated line is restored,the system discon-nects the tunnel to save bandwidth and reverts to using the main network's ground-based dedicated line for transmission.This ensures the continuity of meteorological data transmission and significantly enhances the reliability of the meteorological monitoring network.The system adopts a three-layer architectural design.On the main network,it employs BFD(Bidirectional Forwarding Detection)and DLDP(Dual Link Detection Protocol)for monitoring,enabling rapid determination of the current status of dedicated line interfaces.On the emer-gency network equipment,it utilizes RNS diagnosis to decide whether to dial up the emergency channel,in conjunction with the OSPF(Open Shortest Path First)dynamic routing protocol to achieve automatic switching.The emergency network switching is completed within 10 seconds,playing a crucial emergency backup role at various meteorological stations.关键词
气象监测/RNS/Track/自动切换/应急通信Key words
Meteorological monitoring/RNS/Track/Automatic switching/Emergency communication分类
信息技术与安全科学引用本文复制引用
季永华,刘俊娜,唐怀瓯,季刚,陈菁菁,杨姝..基于RNS和Track诊断的省级气象应急网络系统[J].通信与信息技术,2026,(5):26-29,87,5.基金项目
安徽省"十三五"气象信息化工程项目资助(项目编号:2017-340104-01-01-031187) （项目编号:2017-340104-01-01-031187）
