The recent announcement coming from VMware, is the new line of products that definitely covers all segments of software defined networking: Virtual Cloud Network.
I already showed here the benefits of the software defined networking based on NSX, as the opportunity for enterprise companies and service provider to evolve physical and logical networks, into a dynamic, reliable and secure data center network.
In fact, deploy a physical network SDN ready, is very easy, and less expensive than build a traditional network (in terms of switches and firewalls). From another perspective, implementing NSX in a already existing network environment is a non destructive action that could accelerate its adoption without substantial modification against the traditional network.
The next step into a more integrated environment is the end-to-end segmentations spread across multiple data center, edge networks and cloud system. Following the vision with VMware, the journey to SDN starts on-premise with NSX for datacenter, interconnecting every “places” with NSX SD-WAN (by VeloCloud) and finally embracing cloud networking with NSX Cloud.
Official Page: https://www.vmware.com/solutions/virtual-cloud-network.html
Interesting article about SD-WAN: https://www.sdxcentral.com/sd-wan/definitions/software-defined-sdn-wan/