路局直管站段模式下综合计算机网络平台构建关键技术  

Key Technologies for Constructing the Integrated Computer Network Platform in the Mode of Stations and Depots under the Direct Management of Railway Bureau

作　　者：宋建新[1] 刘丹[1] 

机构地区：[1]太原铁路局信息技术处,山西太原030013

出　　处：《中国铁道科学》2009年第1期122-125,共4页China Railway Science

摘　　要：根据太原铁路局实际生产需要,结合太原铁路局既有计算机局域网网络结构及业务通信模式,充分考虑网络架构的扩展性、可靠性和易维护性,采用层次化和模块化网络设计方法,构建太原铁路局综合计算机网络平台。网络平台由核心层、汇聚层和接入层组成。采用双向链路故障检测技术、增量算法和双引擎的平滑重启技术,高效改善路由协议收敛速度。网络管理系统包括局域网网络协议分析系统、广域网网络协议分析系统和网元管理系统。多业务安全传输平台的设计内容包括:MPLS VPN参数值的定义、MP-BGP实现跨自治系统,结合LDP和RSVP-TE实现LSP选路。该综合网络平台具有网络故障自愈、支持多业务系统、安全业务、网络监控及故障分析能力。According to the actual production need of Taiyuan Railway Bureau, combining the existing LAN network structure and the modes of service communication, and taking full account of the expansibility, reliability and maintainability of the network architecture, the integrated computer network platform of Taiyuan Railway Bureau is constructed by adopting hierarchical and modular network design methods. The network platform is composed of core layer, convergence layer and access layer. The convergence rate of routing protocol has been efficiently improved by two-way link failure detection technology, incremental algorithm and twin-engine Graceful Restart technology. The network management system consists of LAN network protocol analysis system, WAN network protocol analysis system and element management system. The design content of multi-service secure transmission platform covers the definition of parameter values with MPLS VPN, inter-autonomous system communication with MP-BGP and the realization of LSP routing by combining LDP and RSVP-TE. The integrated network platform has the capacity of network failure self-healing, multi-service supporting, safety service, network monitoring and control, and fault analysis as well.

关 键 词：计算机局域网 综合网络平台 网络结构 关键技术 

分 类 号：TP393.02[自动化与计算机技术—计算机应用技术]