<s>
Carrier	B-Protocol
Routing	I-Protocol
System	I-Protocol
(	O
CRS	O
)	O
is	O
a	O
modular	O
and	O
distributed	O
core	B-Protocol
router	I-Protocol
developed	O
by	O
Cisco	O
Systems	O
Inc	O
that	O
enables	O
service	O
providers	O
to	O
deliver	O
data	O
,	O
voice	O
,	O
and	O
video	O
services	O
over	O
a	O
scalable	O
IP	O
Next-Generation	B-Protocol
Network	I-Protocol
(	O
NGN	O
)	O
infrastructure	O
.	O
</s>
<s>
A	O
standalone	O
Carrier	B-Protocol
Routing	I-Protocol
System	I-Protocol
is	O
deployed	O
with	O
a	O
Line	O
card	O
chassis	O
(	O
LCC	O
)	O
.	O
</s>
<s>
The	O
CRS	O
runs	O
IOS	B-Device
XR	I-Device
which	O
is	O
said	O
to	O
be	O
designed	O
for	O
high-end	O
carrier	O
grade	O
routers	O
and	O
was	O
launched	O
with	O
CRS-1	O
.	O
</s>
<s>
Cisco	O
Systems	O
has	O
announced	O
the	O
addition	O
of	O
a	O
new	O
product	O
to	O
its	O
existing	O
CRS	O
family	O
,	O
the	O
Carrier	B-Protocol
Routing	I-Protocol
System	I-Protocol
X	O
,	O
or	O
CRS-X	O
(	O
C-R-S-Ten	O
)	O
,	O
which	O
is	O
expected	O
to	O
be	O
10	O
times	O
faster	O
than	O
the	O
first	O
CRS	O
model	O
(	O
CRS-1	O
)	O
the	O
company	O
offered	O
,	O
back	O
in	O
2004	O
.	O
</s>
<s>
The	O
press	O
release	O
(	O
reference	O
)	O
also	O
claims	O
that	O
,	O
the	O
CRS-X	O
400	O
GE	O
Line	O
Card	O
with	O
Cisco	O
AnyPort	O
Technology	O
uses	O
Cisco	O
’s	O
CMOS	B-Device
photonic	O
CPAK	O
to	O
reduce	O
power	O
consumption	O
,	O
heat	O
dissipation	O
and	O
increase	O
100	O
GE	O
port	O
densities	O
by	O
a	O
factor	O
of	O
three	O
compared	O
to	O
competitive	O
solutions	O
.	O
</s>
<s>
CRS-3	O
also	O
supports	O
IPoDWDM	B-Protocol
.	O
</s>
<s>
AT&T	O
Corporation	O
tested	O
the	O
CRS-3	O
in	O
a	O
live-network	O
using	O
the	O
100Gb	O
Ethernet	O
backbone	O
and	O
the	O
Dutch	O
telco	O
KPN	O
Telecom	O
selected	O
the	O
CRS-3	O
platform	O
for	O
their	O
new	O
NextGen	B-Protocol
IP	I-Protocol
backbone	I-Protocol
.	O
</s>
<s>
CRS-1	O
is	O
the	O
first	O
generation	O
of	O
Carrier	B-Protocol
Routing	I-Protocol
System	I-Protocol
launched	O
in	O
2004	O
.	O
</s>
<s>
This	O
replaced	O
the	O
Cisco	B-Device
12000	I-Device
routers	O
which	O
were	O
used	O
as	O
core	B-Protocol
routers	I-Protocol
.	O
</s>
