Design And Implementation Of Inter-provincial Backbone Transport Network Planning System

With the development and maturation of network transport technology,the backbone network technology has been developed from SDH to OTN and gradually to the next generation which is AON. With the rapid development of mobile internet, cloud computing and other related services, China’s backbone network traffic is increasing at an annual rate of 50%. At present,the OTN/WDM network has been widely used in the backbone network. The system capacity has developed a lot and now it has been 100Gb/s which makes it become inter-provincial long-distance, large-capacity transmission of the mainstream network. As the basis carrier of information transmission, the backbone network has a higher design standard in carrying capacity, network performance and scheduling flexibility, which will bring more challenge to the operators of network construction and maintenance.Based on the research of the theory and technology of transmission network planning, first of all, a detailed design is made about the architecture,system process and network data model of the Inter-Provincial Backbone Transport Network Planning System. Next, three system functional modules are implemented by using related technology. One of the three parts is data management module, which is mainly used for network resources management in the network service planning and provides powerful data support for the follow-up network design. Another part is engineering design module which means to split the RWA problem into the routing sub-problem and the wavelength assignment sub-problem, implements algorithms and functions performed in the system. The service is landed on the port of the OTN device to complete the task of resource assignment for the entire network planning in the service configuration of the node layer. The last part is topology display module, using the TWaver component to realize the network layer topology display of the background resources in the system. In this way, analyses of existing network resources can be performed intuitively and secondary modifications of routing changes can be made.Finally, the system function and performance are tested to ensure the practicality and reliability of the system.