Design and implementation of provincial meteorological information network system
省级气象信息网络系统的整体设计与实现*

According to the demands of provincial meteorological service to the information network,this paper proposed an integrated architecture design for provincial meteorological information WAN system,which included three aspects as main frame:its backbone,backup route and Internet access,by adopting the sophisticated network technology.The backbone was SDH wideband network for province-city-county three-level meteorological societies with star and tree topology.The backup route was the VPN over Internet directly crossing province,cities and counties,which switched with the backbone automatically in case of emergency based on OSPF protocol.The Internet access was centralized to province and city levels with security protection of firewall.This design concept was implemented in constructing Sichuan provincial meteorological information WAN system.The common model is to be put forward as the reference for other provincial WAN.