广州电力城域网组网及端到端VPN的实现

随着电力系统信息化的发展,OA、财务M IS、营销M IS等业务对通信带宽需求越来越高,为满足信息化的发展需求,广州供电局分两期建设广州电力城域网,覆盖所有二级单位和供电所等节点,承载各种业务。文章介绍了广州电力城域网在两期建设过程中的组网模式和相关技术,重点分析了两期网络建设过程中的前后连贯性和技术的兼容性,提出根据实际情况如何延伸卫星城市的骨干网络建设的问题。整个网络采用MPLS和Multi-VRF等技术,实现端到端的VPN业务接入,从而解决整个各种不同信息业务的相互隔离,增强信息系统的安全,使企业信息化建设向前迈进了一步。

Actualization of metropolitan area network construction and end to end VPN in Guangzhou electric power

With the development of power system informationization,the demand on communication bandwidth,such as OA,financial MIS,marketing MIS,is becoming higher and higher.To meet the development demand,the Metropolitan Area Network(MAN) construction was divided into two phases in Guangzhou Power Supply Bureau.The MAN bears various businesses and lays over all nodes of subsidiary units and the power supply stations in city zone.The paper introduces the network mode and relevant technologies used in this two phases.The technical continuity and compatibility used in the two phases are analyzed emphatically,and according to the actual condition,how to extend the backbone network to the nodes in satellite town are mentioned especially in the paper also.With the using of MPLS,Multi-VRF and end-to-end VPN business access technologies,different information businesses are isolated;the security of information system is strengthened;and makes great strides in the enterprise informationization construction.