During digital transformation, the network requirement model keeps changing. When local service computing is implemented on the cloud, the network shall not only enjoy stabler and faster WAN bandwidth, but also be more transparent to upper layer services. Conventional enterprise networks bothered by slow service provisioning, complicated maintenance of dedicated devices and expensive private lines have become a real obstacle to the digital transformation. ZTE Elastic SD-WAN solution employs software-defined networking (SDN)/network functions virtualization (NFV) standard architecture to provide integrated cloud intelligent operation and maintenance (O&M), as well as an all-in-one hardware platform. By virtualizing dedicated hardware, optimizing global traffic model and deploying value-added services on the cloud, the Elastic SD-WAN solution enhances the network bandwidth utilization, reduces the leased line cost, makes the service deployment easier and enables more flexible service evolution. It provides a brand-new way for the user to perform automated network management and enhance the enterprise service capabilities.