国网数据通信网跨域VPN的设计与兼容性实现

Design and Compatibility Implementation of State Grid Data Communication Network Cross-Domain VPN

为了解决国家电网公司各省数据通信网长期以来在建设标准、运维规范、管理能力等方面存在的差异,提高数据网的业务承载能力,便于业务应用的集中部署与全网协同,国家电网公司亟需采用新的技术和手段解决业务扩展和部署困难的问题。文章以国家电网公司省级及以下数据通信网络优化整合改造项目为契机,对网络优化整合采用的跨域新技术展开阐述,通过对MPLS VPN的3种跨域方式进行对比分析,提出采用Option C技术进行跨域方式的必要性和优势,可以改变原有网络分割管理的缺点,从而实现端到端的业务管理。此外,根据实施过程中遇到的多项兼容性问题,还提出了采用Option C的具体解决方案,为后续大型网络跨域互通提供了借鉴及参考。

There are big differences of construction standard, operation specification and management ability among provincial data communication networks of SGCC, to improve the traffic carrying capacity of data network, and easy for centralized deployment and full network collaboration for business applications, State Grid companies need to adopt new technologies and means to solve business expansion problem and deployment difficulties. As an opportunity of the project ＂integration and optimization for the data communication network at the provincial level and below in State Grid Corporation of China＂, this paper discusses about the new cross-domain technologies for network optimization. Through the comparison of three different cross-domain method for MPLS VPN, Option C technology is chosen, and its necessity and superiority is illustrated. The shortcomings of the existing network partition management are changed, and the end to end service management is realized. According to the different problems of compatibility in the process of implementation, the specific solution of Option C is also proposed, which will provide reference for large-scale network cross-domain interconnection in future.