省级气象宽带网可靠性设计

发布时间：2018-08-08 21:35

【摘要】：气象业务的发展和社会需求的增长,对广域宽带网络系统提出更高要求,不但要求传输的数据量大,时效性强,而且要求其可靠性高。目前各省级气象局的宽带网可靠性设计,大都采用降级备份,无法做到双链路自动切换、无缝备份,难以满足气象业务7×24 h从不间断的实际需求,网络可靠性有待进一步提高。该文提出一种基于双向转发检测(BFD)和策略路由技术的网络可靠性设计方案,应用该方案不仅使网络结构和带宽有大幅提升,还能实现业务分流、链路冗余和故障自动切换,提高气象宽带网的可靠性水平。该方案经严格测试后,已依托广东省气象宽带网得以实现并投入业务运行,效果良好。同时,该设计对其他省级气象网络建设有一定参考价值。
[Abstract]:With the development of meteorological service and the increase of social demand, the requirement of wide area broadband network system is higher, which not only requires large amount of data, strong timeliness, but also requires high reliability. At present, most of the broadband network reliability design of provincial meteorological bureau adopts demotion backup, which can not automatically switch double link, seamless backup, it is difficult to meet the actual demand of 7 脳 24 h continuous meteorological service, and the network reliability needs to be further improved. This paper presents a network reliability design scheme based on bidirectional forwarding detection (BFD) and policy routing technology. The application of this scheme not only greatly improves the network structure and bandwidth, but also realizes traffic shunt, link redundancy and automatic failover. Improve the reliability of meteorological broadband network. After strict test, the scheme has been realized and put into operation based on Guangdong Meteorological Broadband Network, and the effect is good. At the same time, this design has certain reference value to other provincial meteorological network construction.
【作者单位】：广东省气象信息中心;区域数值天气预报重点实验室;广东省气象科技培训中心;
【基金】：公益性行业(气象)科研专项(GYHY201206031)
【分类号】：TP393.09;P409

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