Design And Implementation Of The Large-scale Virtual And Real Network Interconnected Platform Based On Openstack

With the rapid development of network technology,network security has become a problem that cannot be underestimated.In order to cope with network security and possible information warfare attacks,it is an essential requirement to build a network weapon training field--large-scale virtual network platform.In order to improve the authenticity of network,it is also an important step to realize the interconnection between virtual network and real network.Limited by hardware resources(2 servers),this paper is dedicated to designing and building a large-scale virtual network platform with at least 400 virtual nodes and 500 links,and connecting with the actual physical nodes to carry out normal communication.The specific solutions are as follows: firstly,based on Openstack,an open source cloud computing management platform project,a virtual network composed of a certain number of virtual institutions is built;Secondly,the network simulation software Mininet is used to expand the network scale.Finally,virtual-real interconnection is realized with Open v Switch(OVS)technology.The main work of this paper is as follows:1.Use Openstack to integrate hardware resources(computing,storage,network resource pools),and use virtualization technology to build virtual machines.2.Use Mininet to expand network scale.For every virtual machine in Openstack cloud platform,expand network scale from a single node to a small network topology.In this way,the scale of virtual network nodes on Openstack cloud platform can be multiplied and superimposed,so as to realize the large-scale virtual network platform.3.Using the Open v Switch technology,a physical node is set as OVS.Through this OVS as a bridge,the actual physical nodes and the virtual nodes in Mininet can be connected into the same network to achieve virtual and real interconnection.4.Use SDN controller to supervise and control the platform.Based on Openstack cloud platform and Mininet simulation platform technology,this paper uses OVS technology to realize virtual and real interconnection,and completes the construction of large-scale virtual and real interconnection network platform.