Planning And Implementation Of Mpls-Vpn Networking

The information age, data communication technology can be applied to large-scale commercial activities. Mainstream data communications networking, including:green networking, Internet and VPN networking. The green network is the purpose of the synchronous digital transmission network, transmission network access to telecommunications operators, to achieve point-to-point data communications. Corporate private network through the opening formed by the point-to-point green network is privately owned, with the performance of confidentiality, exclusive bandwidth, high transmission efficiency, and the advantages of strong anti-jamming capability.Internet. VPN networking, VPN-based virtual tunneling technology, the Internet access on the basis of widely used in small, medium and large enterprise data communications technology. VPN networking for green network input costs low, the implementation of the deployment of a relatively flexible, as the cost of Internet VPN networking Internet-based access, in other words enterprise data will be exposed to the public on the Internet, on the public LAN, although the data through encryption, but security is much lower than the green network.It is low due to high input of green networking and Internet VPN network security has led to the fundamental needs of the enterprise networking to some extent, these two can not meet. So, can seek a solution can take into account the advantages of these two networking, but also to avoid the disadvantages? This is what we are to study the original intention of the MPLS-VPN technology.The traditional network model, to achieve the branch nodes and the headquarters of interactive data, the implementation of access, in general, the joint topology network, this network approach requires that each branch point or each new one branch point and the headquarters Internet, are requires the construction of a physical local/long distance circuit, and the completion of the transfer of the headquarters of the two-story link.Traditional networking features are:exclusive network resources, network safe and so on. This traditional network model, expensive, long-term lease or construction of a number of local/long distance circuit, each circuit, whether or load operations, the headquarters of the core points should be reserved for a specific bandwidth, increasing the core point leased lines, while long-term occupation of the long-distance bandwidth resources, in terms of utilization in terms of overhead or circuit, is a great loss.MPLS-VPN network situation should be shipped out to its network with good QOS performance, latency and packet loss can fully meet the requirements. Network overall economic performance, and equipment into low-cost, low costs of network usage, network as a whole to maintain a low-cost advantages.For most sales-oriented enterprise, represents the efficiency gains, the rate of expansion of the "territories" often affect the market share of the enterprise.MPLS-VPN just and the enterprise customers demand, it is access to an easy, flexible networking, that is, as long as the user’s branch node nearest the access provider’s PE node can interoperate. Network overhead compared to traditional leased line networking is low, this is due to the MPLS-VPN this network architecture to complete, enterprise customers need not pay to build the network, the lease cost of the actual link and pay only the local access circuit of the PE node and port fees can be.At the same time, the MPLS-VPN networking with traditional networking unmatched by the redundancy mechanism. Traditional leased lines, network with ring redundancy of the transmission network, the top of the transmission network MPLS-VPN network architecture in addition to have the second floor of redundancy, three IP layer still have the link redundancy. In extreme cases, the inability to link interruption, as long as the three-tier network up, we can guarantee the normal operation of the network. Starting from the theoretical study of the MPLS-VPN and BGP, network planning design of the field, the difficulties encountered in the combination of project and experience to further the theory is applied to the actual production work are discussed and research.