NSX for vSphere creates a network virtualization layer on top of which all virtual networks are created. This layer is an abstraction between the physical and virtual networks. You configure NSX dynamic routing within the management cluster, deploying two NSX Edge devices and a Universal Distributed Logical Router (UDLR).

1

Create a universal logical switch for use as the transit network.

2

Deploy two NSX Edge devices for North-South Routing. 

3

Disable the firewall of the NSX Edge devices, this is required for equal-cost multi-path (ECMP) to operate correctly.

4

Enable Border Gateway Protocol (BGP) to exchange routing information between the NSX Edge services gateways.

5

The NSX Edge devices need to establish a connection to each of it's upstream BGP switches before BGP updates can be exchanged. Verify that the NSX Edges devices are successfully peering, and that BGP routing has been established.

6

Deploy the universal distributed logical router (UDLR).

7

Configure the universal distributed logical router (UDLR) to use dynamic routing.

8

The universal distributed logical routers (UDLR) needs to establish a connection to Edge Services Gateway before BGP updates can be exchanged. Verify that the UDLR is successfully peering, and that BGP routing has been established.