The Design And Implementation Of MPLS VPN For Bank

VPN is the short name of virtual private network, it is a private dedicated network which is built by using public networks. VPN connects the components and resources of different networks, creates tunnels for users by using the infrastructure of Internet or other public networks, and provides the same safety and security features as private networks. VPN brings higher security, greater network bandwidth and lower cost of network construction and operation to users while achieving the same transmission effect as the dedicated line. With the development of VPN technology, IP Virtual Private Network (IP/VPN) based on multi-protocol Label Switching (MPLS) is the mainstream direction of the development of VPN. MPLS VPN is a MPLS-based IP-VPN, an application of MPLS technology on the routing and switching network equipment: predigesting the mode of route selection in core router, and combining the technology of label swithing which is a traditional routing technology to achieve the IP virtual private network (IP-VPN). It can be used to build the broad band Intranet or Extranet, suffices the flexible needs of the service. MPLS VPN is the key technology to achieving the amalgamation of three networks, and is the development direction of the VPN technology. MPLS VPN will be the important means and methods of the transition to network of next generation.MPLS VPN technology is the mainstream direction of VPN, this article is also focus on MPLS VPN technology as the core. Combining with the author in person to participate in an actual case, to expound MPLS VPN technology on the design of And the realization of the process through the city of Chongqing on the banks of a MPLS VPN application and implementation of the project ("The bank of Chongqing" In this article, it will be identified as "A bank of Chongqing" in the paper). From A bank's network of the current situation analyzing is to start, it was proposed by the existing network of related issues, comed to the implementation of the need for MPLS VPN technology, and then taked full advantage of the features of MPLS VPN technology (to reduce costs, to improve resource utilization, to improve the flexibility to expand, Security, etc.), it resolved A bank network of Chongqing existing many problems. On the basis of this technology, the wide area network adopted BGP (BGP: Border Gateway Protocol) as a flexible protocol; According to different business requirements, distinguish the different communications to provide them with the corresponding services and QoS(QoS: Quality of Service) technical grade, both to ensure the network quality of service And reducing the cost of the user.According to the practical running result of the MPLS VPN application in A bank of Chongqing, each application service is running well, all the monitoring data of key equipments is in controllable range. So the design and implementation is reasonably practicable, can be change and expand according to the specific requirements of services and applications, and can be promote in this industry.