Deployment Guide

When VLT domain 1 receive any traffic towards external world, the traffic is routed to the separate virtual network in the ingress VTEP
and sent to the Border Leaf VTEP. In the Border Leaf VTEP, the traffic is then routed to the VLAN to which an external WAN router is
connected or directly connected to the Internet. Similarly any traffic that is destined to the internal virtual network environment is
received at the Border Leaf VTEP and routed accordingly to the virtual network present in the destination network.
Similarly, any traffic that is destined to the internal virtual network environment is received at the Border Leaf VTEP and routed to the
virtual network in the destination network.
Figure 8. Border Leaf Gateway
NOTE:
The leaf and spine configurations that are mentioned in the BGP EVPN — Multi-AS use case hold good for
configuring this Border leaf gateway topology also. However, the following configurations mentioned in this section are
additional configurations to be done in the VTEPs in the leaf network.
126 BGP EVPN for VXLAN