MAC learning: Disable on VXLAN interfaces

You can disable MAC learning in a VXLAN. By default, MAC learning is enabled, and the VTEPs (VXLAN tunnel endpoints) learn the MAC addresses of:

• Remote hosts from.the VTEPs on the remote VTEP list
• Local hosts from. the local access interfaces

After the VTE learns the MAC address of a host, it adds the address to the Ethernet switching table. When you disable MAC learning on specific physical interfaces or VLAN interfaces in a VXLAN, the VTEPs are unable to learn the source and destination MAC addresses. Instead, the VXLAN receives a flood of packets that the device sends to any destination addresses.