Research On Network Virtual And Physical Fusionized Emulation Technology Based On Cloud Platform

In recent years,network technology has flourished,the network scale has become larger and larger,and various layers of protocols,organizational structures,algorithms,and application-layer applications have emerged in an endless stream.With the advent of the era of mobile terminals,the network system is more complicated,and the infrastructure construction,maintenance and power consumption are costly and the applications are numerous.The layers of protocols and related algorithms and application-layer applications must undergo robustness,security,robustness,and related performance tests before they are deployed.There are certain limitations on the traditional network simulation or physical experiment bed to test the target scene.The simulation of the physical experiment bed is small and the construction is often time-consuming and laborious.While the network simulation can simulate large-scale scenarios,the simulation scale is still affected by the stand-alone performance.The constraints and simulation fidelity are worse than the physical bed.Therefore,how to construct a emulation platform that can guarantee the fidelity of emulation and support large-scale emulation scenarios has become an urgent problem in the field of network emulation.In response to this problem,this paper proposes a network virtual and physical fusionized model,so that the original virtual network central molecular set is replaced by the actual network.A virtual and physical fusionized scheme based on Linux-Bridge virtual bridge and proxy node are designed.Its purpose is to enable virtual and physical networks to communicate with each other.While solving the problems of high cost and difficult deployment of the physical test bed,the fidelity of the emulation test cloud experiment is improved,and due to the distributed architecture of the emulation test cloud,the computational performance can be horizontally expanded,and the network virtual and physical fusionized is integrated in the emulation scale.It has also been greatly improved.Firstly,this paper standardizes and abstracts the emulation elements in the target network topology,providing a unified interface for the network environment and the emulation test cloud.Secondly,the network virtual physical fusionized is based on Linux-Bridge virtual bridge network virtual-complex communication model and proxy-based network virtual-complex communication model.The advantages and disadvantages of the two schemes are analyzed and compared,and each network is given.The applicable emulation scenario of the virtual and physical fusionized scheme.In this paper,the network virtual and physical fusionized technology and the emulation test cloud are organically integrated,so that the network virtual and physical fusionized emulation scenario can be easily deployed or even automatically deployed under simple operation,which greatly reduces the user learning cost and operation time cost,and improves the emulation efficiency.Finally,functional testing and performance evaluation of network virtual and physical fusionized.Experiments show that the system realizes the real-time communication between the virtual network and the actual network.Taking the world-integrated network as an example,the STK simulation software is used to establish the Space-ground Integrated Network topology,and the topology file is automatically analyzed by the program to establish the and physical fusionized emulation scene.The Space-ground Integrated Network topology is analyzed through virtual and physical fusionized.The relevant research results of this paper: published two related EI papers,and the Cloud-based Network Emulation Platform with network virtual and physical fusionized has been put into use in satellite communication emulations of fifty-four China Electronics.