关键词: 网络试验床, 虚拟网络, 网络拓扑, 可伸缩性

Abstract:

Network testbed as development platform that simulates the real-world environment for running extensive tests and validation experiments, it’s essential to enhance capability of independent innovation for network technology and capability of network security. Firstly, this paper introduces two topology generation methods in the virtual network construction: based on graphical interface and based on configuration file. Then, for supporting larger test scenarios or more concurrent tests under limited physical resources, this paper proposes to build a virtual network which has scalability, and describes the implementation scheme of scalability in detail. Finally, this paper introduces the virtual network construction and scalability adjustment process when executes DDoS attack test in the network testbed.

Key words: network testbed, virtual network, network topology, scalability