Study On Optimization Design Of Ip Metropolitan Area Network

With the reapid growth of the Metropolitan Area Network(MAN) user numbers and expansion of broadbrand networks in GZ, MAN, the key netwoks that connect PC users in major cities, the important telecommunication channel carrier, shows it's shortcomings and disadvantages, Therefore, the optimization of MAN has been attracting more and more attention.The essay firstly reviews several key technologies of MAN, inclduing IP Routing, Qos(Quality of Service),MPLS VPN,NGN, SVLAN etc. then it analizes the common problems exists nationally wide during the development of domestic IP MAN, then finally, basing on the MAN technologies and planning principles, the essay proposes an optimization of the entire network transformation program. The propasal consists the adjustment of the core structure and linkes, optimazation of IDC(Internet Date Center) and NGN(Next Generation Network). Finally, the essay ends with a discussion focused on network access structure and standarization.The optimization of IP MAN is the key content of the essay, while the structure of the it is as follows:1. Introduces several key technologies including IP Routing, Qos(Quality of Service), xDSL(Digital Subscriber Line)2. Deeply analyze the problem of Traditional ip network .3. Made a reasonable solution to Optimization adjustment of the ip network on the basis of network technology and network planning principles .the scheme will be involvedStructure of networks and link of optimization, idc ngn adjustment, and Qos strategic deployment.4. On the network access layer in-depth discussions, including structure of network and network standardized established.The entire program takes a Internet Service Provider of Guangzhou's IP intracity networks as an example to analyze the disadvantages of original structure of this company intracity networks . which is mainly manifested in that the network structure is irrational and the business support capabilities, security is not in place, etc.and based on this, it puts forward an optimized structure scheme. After determining the new structure of the core layer, the interconnection between Backbone equipment should be adjusted on the purpose of achieving a better structure.