All new and existing networks that are connected to the Universal Distributed Logical Router (UDLR) will be connected and propagated to the edge services gateway devices within each data center. This is achieved through the use of the Open Shortest Path First (OSPF) dynamic routing protocol.

North-South routing for virtual machine traffic will traverse the edge services gateway devices which are connected to the core network through a VLAN connection. This gives complete routed connections in and out of the data center core network.

The default gateway for virtual machine traffic will always be within the site that the virtual machine is located in. This is due to the LocalID that is presented to the ESXi hosts managed by the respective NSX Manager. With local egress turned on, there is a controller VM for the UDLR in each data center that contains the default gateway for the logical switch traffic.