Configuring a Layer 3 VXLAN Gateway
Context
A VBDIF interface is configured on a Layer 3 VXLAN gateway to forward packets across network segments. You do not need to create a VBDIF interface for communication between users in the same network segment.
If end users in a VXLAN site need to access the Internet or communicate with end users in another VXLAN site, a Layer 3 VXLAN gateway needs to be deployed to provide end users with Layer 3 services.
After you create a logical Layer 3 VBDIF interface and configure an IP address for the VBDIF interface, the VBDIF interface functions as the gateway for tenants in the BD to forward packets at Layer 3 based on the IP address. Each BD has only one VBDIF interface.
To ensure that users in different network segments can communicate with each other, ensure that the default gateway address is the IP address of the VBDIF interface on the Layer 3 VXLAN gateway.