Research on automatic construction of network environments based on KVM virtualization

The study was conducted to challenge the problems of high-cost, low-efficiency, poor-controllability of the traditional method for construction of network environments, and a novel technique for automatic construction of virtual networks based on the virtualization using a kernel-based virtual machine (KVM). The new technique can be stated below. Firstly, it gives a formalized description of a real network to be structured, and based on the result of the formalized description, it takes advantage of the KVM and the Click virtualization to produce the host and the router in the network. And then, it uses the terminal router routing table flooding (TRTF) algorithm to calculate the routing table, and the host and the router set up themself by running a script. At this time a virtual network is formed. The experimental results indicate that it cost 95s to structure a network having 100 nodes, and the DDoS simulation on the virtual network shows that the network connectivity is in good condition.