| Multiprotocol Label Switching(MPLS) has evolved from being a buzzword in the networking industry to a widely deployed technology in service provider(SP) networks. In recent years, MPLS has also been adopted by the enterprise and federal market segments. MPLS is a contemporary solution to address a multitude of problems faced by present-day networks: speed, scalability, quality of service(QOS) management, and traffic engineering. Service providers are realizing larger revenues by the implementation of service models based on the flexibility and value adds provided by MPLS solutions. MPLS also provides an elegant solution to satisfy the bandwidth management and service requirements for next-generation IP–based backbone networks.This thesis introduces the working principle of MPLS, ISIS OSPF build-up of MPLS network process;And through GNS3 design a multiple operators network environment.Through several dynampis simulated routers, first set up the entire network IP network.Run MPLS in the core network, MPLS in the core network running after, for each site the client can run MPLS VPN based on MPLS VPN, formed a variety of application of MPLS VPN(CSC, Internet access, layer 2 VPN and MPVN).The entire network is simulated through GNS3 and dynamips.This thesis solve 3 sites of ABC company communication by setting up a network with MPLS VPN at fist, then on the base of MPLS VPN apply the multicast of the MPLS VPN.With the development of the information, the IP network display more an d more disadvantage. The MPLS network in the service provider and enterprise is the trend. |