The Application Of VPDN Network Technology Which Based On MPLS VPN

With the continuous development of the Internet in recent years, anytime, anywhere mobile office has become more and more users. VPDN english name is "Virtual Private Dial-up Networks", main point Network forme using dedicated access, remote users access by dial-up, is a virtual private dial-up network which based on the carrier’s full coverage wireless network.The construction of VPDN network is based on the MPLS VPN, requires AAA authentication and authorization mechanisms, combines the advantages of MPLS VPN and VPDN technology, the systems have flexible and reliable, easy to operate, Management convenient features.Firstly, this article reviewed the VPDN network technologies based on MPLS VPN, including MPLS VPN label forwarding, LNS multiplexing, encryption technology, QoS technology and VPDN core technology. MPLS VPN ’s LNS which is used to solve different types of LNS compatibility complex in rout configuration, concentrate the complexity of the system at one end of ISP, the LAC server in ISP, just need 1 to 2 LNS device interoperability, a complete network deployment just need users access to the MPLS VPN network, while added new users don’t need to re-test the interoperability between LAC and LNS. Tunneling technology establish between user gateway and access server, responsible for separate the users data traffic within the network and public network,remote access users can log in corporate intranet through the tunnel. VPDN network combines the advantages of MPLS VPN and traditional VPDN, not only reduces the investment and maintenance cost, but also both the flexibility and security of MPLS VPN network.Secondly, this article describes the established background of rural credit cooperatives VPDN network, the selection of the system VPDN network which based on MPLS VPN. And analysis focus on VPDN network from MPLS VPN technology, wireless network security technology and user side network security technology which based on MPLS VPN’s good safety performance.Finally, this article studied the specific application of rural credit cooperatives which based on MPLS VPN. And detail from the platform construction, purchase of equipment, network equipment deployment and security performance, etc. At the same time, this article conduct a systematic testing to ensure the system’s availability and flexibility. This article also analyzed and summarized rural credit cooperatives obstacles during normal use.The VPDN network based on MPLS VPN have a important and far-reaching prospects value in practical applications.