Open vSwitch VXLAN tunneling support

modulename: vport-vxlan.ko

configname: CONFIG_OPENVSWITCH_VXLAN

Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>Open vSwitch VXLAN tunneling support
In linux kernel since version 3.12 (release Date: 2013-11-03)  
If you say Y here, then the Open vSwitch will be able create vxlan vport.

Say N to exclude this support and reduce the binary size.

If unsure, say Y.

source code: