| With the development of mobile Internet, cloud computing and the appearance of new-stylebusiness model, traditional network based on TCP/IP exists serious problems for QoSã€managementand scalability. In order to support future network innovation, solve existing traditional networkabuses, Network virtualization gradually becomes the current hot point for research. Networkvirtualization needs to satisfy numerous virtual networks share the infrastructural physical networkresource, supports concurrent but isolated heterogeneous virtual networks, and supplies dynamicadjustment and resource management ability when virtual networks are running. This paper focuseson the implementation and management technology for network virtualization.First of all, this paper analyses and compares with relevant implementation technology forvirtual router, and then based on OpenVZ virtual technology designs and implements virtual routerprototype in common hardware platform, and discusses its configure plan; Secondly, this paperdesigns a fast deployment method for virtual nodes, it can accomplish virtual nodes fast deploymentin physical nodes according to users needs, series of experiments test the network virtualizationenvironment based on virtual nodes can support network innovation and heterogeneous virtualnetworks coexisting; Finally, the paper suggests a service oriented network virtualization operatingand management platform, Multiple users login web page of the management platform uploadingnetwork information, the node mapping module of this platform uses node resource mappingalgorithm mapping the virtual networks into physical network, meanwhile it can support dynamicadjustment at the virtual networks working. The paper implements the prototype system, anddeploys one network with5virtual nodes, running OSPF routing protocol and adjusting network.The paper tests the resource mapping and dynamic adjustment modules by checking the results ofmapping and routing. The result proves feasibility and convenience of the prototype system. |
