You can use the VMware Transit Gateway page to get an overview of the VMware Managed Transit Gateway entities.

How to access the VMware Transit Gateway page?

To access this page, search for VMware Transit Gateway and in the search result list, select an entity you want to view.

Overview

In the VMware Transit Gateway page, you see:
Section Details
Overview You see an overview of the selected entity, with its configuration and runtime property details.

The VTGW Route Table shows the route details of the selected entity.

Flows You see an overview of the bandwidth and the network traffic usage over the VMware Managed Transit Gateway.
Alerts You see an overview of the list of all alerts associated with the VMware Managed Transit Gateway entities discovered by vRealize Network Insight alerts.