<s>
The	O
OpenVNet	B-Application
adds	O
a	O
Network	B-Protocol
Virtualization	I-Protocol
layer	O
on	O
top	O
of	O
the	O
existing	O
physical	O
network	O
and	O
enables	O
data	O
center	O
network	O
administrators	O
to	O
tremendously	O
simplify	O
the	O
creation	O
and	O
operation	O
of	O
multi-tenant	O
networks	O
.	O
</s>
<s>
It	O
is	O
based	O
on	O
edge	O
overlay	O
network	O
architecture	O
and	O
provides	O
all	O
the	O
necessary	O
components	O
for	O
network	B-Protocol
virtualization	I-Protocol
such	O
as	O
SDN	O
controller	O
,	O
virtual	O
switch	O
,	O
virtual	O
router	O
,	O
and	O
powerful	O
APIs	O
.	O
</s>
<s>
The	O
OpenVNet	B-Application
project	O
started	O
in	O
April	O
2013	O
.	O
</s>
<s>
Almost	O
part	O
of	O
the	O
implementation	O
had	O
already	O
done	O
in	O
the	O
Wakame-vdc	B-General_Concept
project	O
in	O
the	O
beginning	O
of	O
2012	O
.	O
</s>
