<s>
Information-centric	B-Protocol
networking	I-Protocol
(	O
ICN	O
)	O
is	O
an	O
approach	O
to	O
evolve	O
the	O
Internet	O
infrastructure	O
away	O
from	O
a	O
host-centric	O
paradigm	O
,	O
based	O
on	O
perpetual	O
connectivity	O
and	O
the	O
end-to-end	B-Application
principle	I-Application
,	O
to	O
a	O
network	O
architecture	O
in	O
which	O
the	O
focal	O
point	O
is	O
identified	O
information	O
(	O
or	O
content	O
or	O
data	O
)	O
.	O
</s>
<s>
In	O
this	O
paradigm	O
,	O
connectivity	O
may	O
well	O
be	O
intermittent	O
,	O
end-host	O
and	O
in-network	O
storage	O
can	O
be	O
capitalized	O
upon	O
transparently	O
,	O
as	O
bits	O
in	O
the	O
network	O
and	O
on	O
data	B-General_Concept
storage	I-General_Concept
devices	I-General_Concept
have	O
exactly	O
the	O
same	O
value	O
,	O
mobility	O
and	O
multi	O
access	O
are	O
the	O
norm	O
and	O
anycast	B-Protocol
,	O
multicast	O
,	O
and	O
broadcast	O
are	O
natively	O
supported	O
.	O
</s>
<s>
In	O
information-centric	B-Protocol
networking	I-Protocol
the	O
cache	O
is	O
a	O
network	O
level	O
solution	O
,	O
and	O
it	O
has	O
rapidly	O
changing	O
cache	O
states	O
,	O
higher	O
request	O
arrival	O
rates	O
and	O
smaller	O
cache	O
sizes	O
.	O
</s>
<s>
In	O
particular	O
,	O
information-centric	B-Protocol
networking	I-Protocol
caching	I-Protocol
policies	I-Protocol
should	O
be	O
fast	O
and	O
lightweight	O
.	O
</s>
<s>
The	O
Internet	O
Research	O
Task	O
Force	O
(	O
IRTF	O
)	O
is	O
sponsoring	O
a	O
research	O
group	O
on	O
Information-Centric	B-Protocol
Networking	I-Protocol
Research	O
,	O
which	O
serves	O
as	O
a	O
forum	O
for	O
the	O
exchange	O
and	O
analysis	O
of	O
ICN	O
research	O
ideas	O
and	O
proposals	O
.	O
</s>
