省级气象信息网络系统的整体设计与实现*

针对省级气象信息广域网系统业务需求,结合四川省气象站网和信息网络系统实际,采用先进成熟的网络核心技术,提出了省级气象信息广域网系统的整体架构设计,包括了省—市—县的宽带组网、备份网路以及Internet接入等主要内容,通过在四川省气象信息广域网系统的建设与应用实践,旨在将此设计提升为一种通用模型,提供业界借鉴与参考。

Design and implementation of provincial meteorological information network system

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.