Research And Simulation Implementation Of Self-Adaptive Routing Polocy Control Technology

With the increasing importance of the fixed network infrastructure, it has been a strategic task to improve the network survivability in the war, large-scale natural disasters. "Survivability Routing Research of Fast Reconstruction" project team's goal is to design, in the framework of the existing IP network, a self-adaptive routing policy control technology, which is used to monitor the actual situation of the network, and then select the corresponding policy to control routing protocols to adjust the routing convergence process, in order to improve the network survivability.The dissertation studied the self-adaptive routing policy control technology and developed a prototype simulation system based on SSFNet models. Additinally, simulation experiments are carried out, which verify the functionality and performance of this technology.The main contents of this dissertation are as following:(1)A deep analysis of the fault-handling mechanisms and routing convergence of OSPF is carried out.(2)A detailed introduction is made to the implementation mechanism of SSFNet simulator, as well as OSPF protocol module in it.(3)The self-adaptive routing policy control technology was studied and the corresponding simulation system was developed on SSFNet.(4) Simulation experiments in the scenarios of different network size and failure type were carried out to verify the function and performance of the self-adaptive routing policy control technology.