ZTE virtualization data center solution adopts the SDN technology and brand-new network system architecture known for user plane and control plane separation (U/C separation), centralized control and management, remarkable openness and superior programmability to build data center networks. The network is based on the SDN Overlay architecture. The SDN controller takes responsibility for controlling the infrastructure. By offering network management interfaces on the cloud platform, it enables automatic network configuration. With VxLAN encapsulation, the overlay network requiring no changes to the underlying networks provides lots of network services, for instance, multiple tenants, big L2 service, automatic on-demand deployment and configuration. The underlay network ensures the connectivity of the underlying networks, including the computing network and storage network.