<s>
Eyeball	B-Protocol
network	I-Protocol
is	O
a	O
slang	O
term	O
used	O
by	O
network	B-Architecture
engineers	I-Architecture
and	O
architects	O
that	O
refers	O
to	O
an	O
access	O
network	B-Architecture
whose	O
primary	O
users	O
use	O
the	O
network	B-Architecture
to	O
“	O
look	O
at	O
things	O
”	O
(	O
browse	O
the	O
Internet	O
,	O
read	O
email	O
,	O
etc	O
.	O
)	O
</s>
<s>
and	O
consume	O
content	O
,	O
as	O
opposed	O
to	O
a	O
network	B-Architecture
that	O
may	O
be	O
used	O
primarily	O
to	O
generate	O
its	O
own	O
data	O
,	O
or	O
“	O
content	O
networks/providers	O
”	O
.	O
</s>
<s>
The	O
term	O
“	O
eyeball	B-Protocol
network	I-Protocol
”	O
is	O
often	O
overheard	O
in	O
conversations	O
and	O
seen	O
in	O
articles	O
that	O
discuss	O
peering	B-Protocol
relationships	O
between	O
other	O
networks	O
,	O
as	O
well	O
as	O
net	O
neutrality	O
issues	O
.	O
</s>
<s>
An	O
example	O
of	O
an	O
eyeball	B-Protocol
network	I-Protocol
would	O
be	O
any	O
given	O
ISP	O
that	O
provides	O
internet	O
connectivity	O
to	O
end-users	O
–	O
The	O
ISP	O
may	O
peer	B-Protocol
with	O
Google	B-Application
(	O
which	O
is	O
a	O
content	O
provider	O
)	O
where	O
the	O
end	O
users	O
consume	O
content	O
serviced/provided	O
by	O
Google	B-Application
,	O
in	O
this	O
case	O
the	O
ISP	O
is	O
just	O
an	O
“	O
eyeball	B-Protocol
network	I-Protocol
”	O
providing	O
a	O
means	O
for	O
the	O
end	O
user	O
to	O
reach	O
Google	B-Application
provided	O
actual	O
content	O
.	O
</s>
<s>
However	O
,	O
it	O
is	O
to	O
be	O
noted	O
that	O
not	O
all	O
ISPs	O
are	O
eyeball	B-Protocol
networks	I-Protocol
,	O
they	O
can	O
be	O
pure	O
transit	B-Architecture
providers	I-Architecture
.	O
</s>
<s>
With	O
Tier	B-Architecture
2	I-Architecture
networks	I-Architecture
and	O
lower	O
,	O
they	O
can	O
serve	O
as	O
both	O
an	O
eyeball	B-Protocol
network	I-Protocol
and	O
a	O
transit	O
provider	O
,	O
depending	O
on	O
their	O
business	O
model	O
.	O
</s>
<s>
In	O
the	O
modern	O
day	O
ecosystem	O
where	O
peering	B-Protocol
is	O
given	O
priority	O
,	O
the	O
lines	O
are	O
blurred	O
between	O
the	O
different	O
types	O
of	O
networks	O
as	O
ultimately	O
any	O
given	O
network	B-Architecture
must	O
be	O
able	O
to	O
reach	O
every	O
other	O
given	O
network	B-Architecture
on	O
the	O
internet	O
at	O
large	O
.	O
</s>
