In order to improve fidelity

feasibility and scalability

a multi-granularity virtual and physical network simulation system is proposed

which is based on private cloud platform and integrates full virtualization and lightweight virtualization technologies. Three critical technologies for multi-granularity virtualization

virtual router and integrated network is focused on. A virtual and physical network simulation platform is built up with multigranularity virtualization. Typical scenarios test show

the proposed platform can construct automatically deployable

seamless simulation network with physical nodes based on full virtualization

lightweight virtualization.