Metropolitan Area Network Planning And Design Research And Analysis

With effective safety of Metro Transmission Network is the operator of the pursuit of the goal. After recent years of network construction, the operator in each municipality directly under the central government, provincial capital city into three basic layer (the core layer, convergence layer, access layer) network structure of Metro Transmission Network, while in the two or three line of the city’s metropolitan area network construction is still not perfect. The operators in the metropolitan transport network construction and network evolution process, the network construction and planning and design of. At the same time for a certain carriers in building were analyzed, for other city especially the two or three line of the city as a reference.After years of development, the province operators around the city all construction has more safe and reliable Metro Transmission Network, in this context, we started on the province of a city’s related research, planning, aims to integrate the city existing transmission network resources, using the most appropriate technical solutions for network optimization and capacity expansion, and for the 3G network of comprehensive development and lay a solid foundation. This’article from the metropolitan area network key technologies, network construction idea and principles, combined with a carrier’s network present situation analysis, through the model research of scientific forecast for the next three years business net growth of the metropolitan area network demand, put forward the backbone layer ASON (biplane) +convergence/access layer of MSTP evolution construction scheme. The basic discussion on the protection mode, put forward to protect the combined multiple model, selected for the optimal protection scheme of a city. Finally, model, put forward a concrete construction project. In this paper, planning design, integrate the city carriers existing cyber source, using the most appropriate technical solutions for network optimization and capacity expansion, for future business network of comprehensive development and lay a solid foundation; at the same time to meet a variety of business transfer requirements, greatly facilitate the business development; keeping up with other operators competitive advantage, enhance the foundation strength of network, the transmission network to meet the future needs of the business diversity and scalability, network s rationality and reliability, advanced technology and mature, and the planning and design to guide the future planning and construction.