Network Fault Analysis Of The Design And Implementation Of Virtual Simulation Experiment System

Since the 18 th,the Ministry of Education of the work to the deepening development of education reform,in view of the institutions of higher learning is blank,virtual simulation laboratory construction standard and consciousness in the face of the market many virtual simulation products,such as builders dazzling,the Ministry of Education issued "about experimental teaching of virtual simulation of the construction of the project work,to further promote the fusion of modern information technology and the experimental teaching program,to expand the breadth and depth of the experiment teaching content to expand the space and time of the experiment teaching innovation to provide strong support for the experimental teaching;At the same time,it puts forward higher requirements on virtual simulation experiment teaching,which must have advanced technology,high level of management,scientific operation mechanism,to meet the needs of the current education reform.Virtual simulation experiment teaching,therefore,is bound to become a help transform the teaching quality of higher education and to catch up with the important means.To enhance the students' ability of network fault diagnosis,in line with "the simulation flow,complementary and thinking into culture,casting" concept,design and implementation of a set of teaching,practice,assessment in the integration of network virtual simulation experiment system of fault analysis.In the experiment,this system design before,during and after the three stages,and each stage is fully functional,orderly progress,to make the students of learning computer network system,and through the virtual simulation experiment have to test and apply theoretical knowledge.Simulation experiments based on the contents of each layer of network protocol in TCP/IP reference model of core knowledge,and the logical relationship between different layers in the protocol stack,relying on network fault case,in the virtual experiment environment simulation of the network architecture of common network fault phenomena,such as: transmission medium failure,an IP address conflict,VLAN configuration errors,hosts file error,etc.,for students to network fault analysis and the practice,thus effectively enhance students' ability of theory combined with the actual training development of complex network system of thinking,strengthen the ability of network engineering planning and design and configuration,as well as to the emergency network fault analysis and repair ability,based on the analysis of improve students' logical reasoning and critical thinking.Network virtual simulation experiment system of fault analysis for the Windows platform Web end users,technology and function of this system USES include: based on B/S(browser/server)system architecture of the daemon,3 ds Max model of virtual simulation environment,NGUI making user interface,and the Unity 3 d design of business logic simulation.This paper introduces in detail the whole virtual network fault analysis simulation experiment system design and development process,and the simulation experiment development framework of the project,including the simulation layer,service layer,application layer,support layer.The virtual simulation environment using MVC three layer structure mode,organization and write the logical relationship between the model view controller,thus continuously complete system and the interaction between the user,in order to realize the functions of virtual simulation system.Using My SQL database to store all kinds of experimental data,through graphics tools Shader Forge rendering improve the work efficiency of graphics CARDS,using Web GL technology embedded in a Web browser,Unity project through data interface seamless docking,so that users can carry on the experiment operation anywhere through the browser,Web GL file through the test in the Wampserve32 virtual server,various functions correctly,eventually deployed on the server.This system as a virtual simulation teaching system,simplify the procedure of the traditional teaching one-stop service,in the process of development,the application of computer graphics and simulation engine technology,combining the Unity in GPU computing efficiency at the same time to enhance the visual effect;In virtual simulation system development process,analysis the edge light algorithm,collision detection algorithm,and design the business logic algorithm,etc.,enhance the authenticity of the system;Unity and Web systems through Web GL technology integration,has realized the single system functionality across.