On Thu, 27 Dec 2012 13:56:51 -0500
"Qin, Xiaohong" [off-list ref] wrote:

# ip -V
ip utility, iproute2-ss111117

So I think I'm all set to give it a try?

That version is way to old to know about vxlan configuration.
The last digits of the iproute version are the date it was
released.  That date is November 17 2011 which is the 3.1 version.
You need 3.7 which was released on December 11 2012, or you can
use latest from iproute2 git repository.