<s>
Network	B-Language
Description	I-Language
Language	I-Language
(	O
NDL	O
)	O
is	O
a	O
tool	O
to	O
reduce	O
the	O
complexity	O
as	O
networks	O
evolve	O
into	O
the	O
future	O
.	O
</s>
<s>
SURFnet6	O
,	O
a	O
Dutch	O
national	O
research	O
and	O
education	O
network	O
was	O
one	O
such	O
network	O
that	O
has	O
utilized	O
NDL	O
for	O
lightpath	B-Protocol
and	O
IP	O
service	O
planning	O
.	O
</s>
