VMware NSX-T Documentation
https://www.vmware.com/support/pubs/nsxt_pubs.html
1- Security ( and micro segmentation)
2- Automation
3- Self serving
4- Application continuity
5- Multi-cloud
NSX-T use a Two Tier Distributed Routing Model ( ESXi and KVM )
NSX manager ( 3x for HA )
Edge router for all centralize services: sw, router, VPN, load balancer, Security, . . .