The NSX-T Edge Gateways table in Error! Reference source not found. outlines the edge gateway settings required to support upstream connectivity.
- Assign an ASN for the workload domain edge cluster.
- Reserve hostnames for the two NSX-T edge nodes.
- Reserve four unused IP addresses from the management network subnet for the three NSX-T edge nodes and the virtual IP address to serve as the connection point for NSX-T management.
- Reserve two new VLANs to support the two NSX-T edge uplink networks for the new edge cluster.
- The VLANs must be configured on the switch trunk ports connected to the VxRail nodes.
- One VLAN is assigned to first of the two upstream router instances.
- One VLAN is assigned to the second of the two upstream router instances.
- Reserve three new IP address subnet ranges
- One subnet range for the first NSX-T edge uplink network
- One subnet range for the second NSX-T edge uplink network
- One subnet range for the NSX-T edge overlay network
- Assign an IP address to each edge node for the first NSX-T edge uplink network.
- Assign an IP address to each edge node for the second NSX-T edge uplink network.
- Assign two IP addresses to each edge node for the NSX-T edge overlay network.
- Assign two VLANs to enable BGP peering through the two NSX-T edge uplink networks.

Figure 63. NSX-T edge gateway peering relationship