Designing And Implementing City Grade Social Security Information Network Based On MPLS-VPN Technology

With the continuous development of internet technology,how to make better use of network resources to provide users with the economy and the reasonable network program,improve network efficiency,has become the question which in the present data net movement urgent need to be solved. The hypothesized private network (VPN) is precisely produces as a result of this kind of demand.MPLS(Multi-Protocol Label Switching)combines the transmission technology of L2/L3(Data-link-layer and IP-layer).Using the characters of MPLS to construct VPN,It can solve problems in expansion and management. So MPLS-VPN based on MPLS technology,is the most advanced VPN in the all respects of flexibility,expanding and the security at present.This article,first by study the existing research result and clear up many material,taking city grade social security information network as the background,analyzes many kinds of VPN technology existing at present,and through describing main technological principle and advantage of MPLS-VPN,analyzes and researches the technological features of MPLS-VPN's maintainability and expansibility. The second,analyzes the technological method and advantage of using MPLS-VPN technology to construct the city grade social security information network. This article describes the MPLS-VPN design idea and architecture of the city grade social security information network in detail,and analyzes the topological structure and route design idea of this network platform,and realizes this design network finally through a variety of turning on ways and to the concrete route equipment's. Finally through to the city grade social security information network based on MPLS-VPN technology 's secure test and the theoretical analysis,aspects scalability,topological flexibility,reliability,maintenance of network management,security and so on,to analyze the traditional VPN network and the MPLS-VPN network performance differences. Thus explains the advantage of seting up the city grade social security information network based on the MPLS-VPN technology,and explains the vital guidance significance that set up this kind of large-scale network using this technology from now on.