The Construction Of The Safe And Reliable VPN

As the expansion of the enterprise enormous network, it becomes an inevitable tendency to construct highly extensional and highly manageable VPN networks. But the traditional VPN network can not meet the demands of ISP and Enterprises in expansion and management. MPLS combines the transmission technology of L2/L3( Data-link-layer and IP-layer).Using the characters of MPLS to construct VPN, It can solve these problems well.This paper designs and implements a model of MPLS/VPN. Firstly, this paper analyzes and points out the disadvantages of VPN that use traditional tunnel technology. Putting forward the model of MPLS/VPN and demonstrating the realization procession of MPLS/VPN and its characters and advantages in detail.Secondly, this paper designs VPN reconstruction project of transaction supporting network of HANGZHOU KEDI enterprize, constructing the model of MPLS/VPN. Demonstrating the design and implementation of VPN network in main facets, as follow, IGP protocol,BGP protocol and router-reflect in detail. In addition,applying these ideas in routers.What's more, this paper discussed enterprise networking technology and Construction. I'll introduce network hierarchical design, network modular design, present enterprise garden area network route and exchange and so on essential technology. Later chapter will discuss how to set up a large-scale enterprise network campus, including the design of the network topology, the IP address planning, Access Control List settings, installing Hot Standby Routing Protocol and so on. Finally demonstrated the network group will complete after the merit can realize role and function.