By completely reproducing a physical network, network virtualization allows applications to run on a virtual network as if they were running on a physical network — but with greater operational benefits and all the hardware independencies of virtualization. (Network virtualization presents logical networking devices and services – logical ports, switches, routers, firewalls, load balancers, VPNs and more – to connected workloads.)
NSX is the VMware’s Network Virtualization Platform that manages the entire network as a single entity from a single pane of glass with VMware NSX Data Center. It enables your virtual cloud network with full-stack network and security virtualization. Connect and protect applications across your data center, multi-cloud and container infrastructure. NSX Data Center reproduces the entire network model in software, so you can create and provision any network topology in seconds and deliver critical apps and services faster and easier.