<p>
An Ethernet tunnel over the experimental, UDP-based VXLAN
protocol described at
- <code>http://tools.ietf.org/html/draft-mahalingam-dutt-dcops-vxlan-02</code>.
+ <code>http://tools.ietf.org/html/draft-mahalingam-dutt-dcops-vxlan-03</code>.
VXLAN is currently supported only with the Linux kernel datapath
with kernel version 2.6.26 or later.
</p>