According to the VMware NSX Documentation, these are three of the capabilities of Network Topology, which is a graphical representation of your network infrastructure in NSX:
* Display how the different NSX components are interconnected: You can use Network Topology to view how your segments, gateways, routers, firewalls, load balancers, VPNs, and other NSX components are connected and configured in your network.
* Display the uplink configured on the Tier-0 Gateways: You can use Network Topology to view the uplink interface and segment that connect your tier-0 gateways to your physical network. You can also view the VLAN ID and IP address of the uplink interface.
* Display the VMs connected to Segments: You can use Network Topology to view the VMs that are attached to your segments. You can also view the IP address and MAC address of each VM.
https://docs.vmware.com/en/VMware-NSX/4.0/administration/GUID-A75B2553-7595-40B9-A902-854941BB0