关键词: OpenStack, 路由仿真, 高吞吐量, 路由引擎, 路由计算

Abstract: OpenStack which combines lightweight virtualization, full?virtualization and SDN shows an advantage in?fidelity and extendibility, it can effectively meet the needs of large scale, high fidelity and flexible construction in network simulation. At network simulation level, the neutron in OpenStack can offer facilities for seamless communication among virtual devices, because it can realistically simulate three-layer?network. However, because the virtual router on OpenStack named qrouter can only forward packets among the networks connected with it, so it is difficult to construct?complex simulation network by using qrouter. For this reason, this paper proposes?a?simulation technique based on centralized routing engine and distributed?routers deployment. Experiments show that the method mentioned above not only has the capability to construct?complex simulation network by using qrouter but also is superior in high?throughput.

Key words: OpenStack, routing simulation, high?throughput, routing engine, routing?calculation