一种轻量化分布式虚拟化网络仿真系统OA

Aiming at the problems of large resource consumption and complicated configuration in the existing network simula-tion research,a lightweight distributed virtualized network simulation system is developed.Docker lightweight virtualization technology is used to create a network simulation environment,which can simulate complex commercial network scenarios.This paper designs the network simulation,network link damage simulation and network test modules,so that these modules can measure various data in the network,such as packet transmission delay,loss,out-of-order,duplication and bandwidth lim-it,and also test some performance indicators of the network,such as connection speed,throughput,link quality and available bandwidth.This paper also develops a rich network test toolbox and a fast reroute(FRR)network element simulation system,and integrates the Pumba link impairment tool into the simulation environment.The results of the simulation experiment show that the designed network simulation system can effectively simulate link connectivity and measure bandwidth and other data.It can also effectively detect the change of parameters such as delay and packet loss rate when the link is damaged,and the meas-urement accuracy is about 99.2％.The designed network simulation system can be applied to product performance test and sci-entific research experiment,and provide a new solution for network environment simulation and test.