Configuration restrictions and guidelines
Make sure a VSI interface uses the same MAC address to provide service on distributed VXLAN IP gateways connected to different sites. Make sure a VSI interface uses different link-local addresses to provide service on distributed VXLAN IP gateways connected to both IPv4 and IPv6 sites.
If both ARP flood suppression and local proxy ARP are enabled on a distributed VXLAN IP gateway, only local proxy ARP takes effect. As a best practice, do not use these features together on distributed VXLAN IP gateways. For more information about ARP flood suppression, see "Enabling ARP flood suppression."
On a distributed VXLAN IP gateway, you must disable source MAC check on all transport-facing interfaces by using the undo mac-address static source-check enable command. If the gateway is an IRF fabric, you must also disable the feature on all IRF ports.
On a distributed VXLAN IP gateway, you must perform the following tasks when the spanning tree feature is enabled on an interface that hosts Ethernet service instances:
Create the matching VLANs of the Ethernet service instances.
Assign the interface to the VLANs.