<s>
The	O
Cisco	B-Protocol
Nexus	I-Protocol
series	O
switches	O
are	O
modular	O
and	O
fixed	O
port	O
network	B-Protocol
switches	I-Protocol
designed	O
for	O
the	O
data	O
center	O
.	O
</s>
<s>
The	O
first	O
chassis	O
in	O
the	O
Nexus	O
7000	O
family	O
is	O
a	O
10-slot	O
chassis	O
with	O
two	O
supervisor	O
engine	O
slots	O
and	O
eight	O
I/O	B-General_Concept
module	O
slots	O
at	O
the	O
front	O
,	O
as	O
well	O
as	O
five	O
crossbar	O
switch	O
fabric	O
modules	O
at	O
the	O
rear	O
.	O
</s>
<s>
All	O
switches	O
in	O
the	O
Nexus	O
range	O
run	O
the	O
modular	O
NX-OS	B-Operating_System
firmware/operating	O
system	O
on	O
the	O
fabric	O
.	O
</s>
<s>
NX-OS	B-Operating_System
has	O
some	O
high-availability	O
features	O
compared	O
to	O
the	O
well-known	O
Cisco	B-Protocol
IOS	I-Protocol
.	O
</s>
<s>
Cisco	B-Protocol
Nexus	I-Protocol
OS	O
Software	O
Defined	O
Networking	O
(	O
SDN	O
)	O
allows	O
the	O
same	O
policies	O
that	O
govern	O
Identity	O
and	O
Access	O
Management	O
(	O
IAM	O
)	O
to	O
dictate	O
levels	O
of	O
access	O
to	O
applications	O
and	O
data	O
through	O
a	O
totally	O
converged	O
infrastructure	O
not	O
possible	O
with	O
legacy	O
network	O
and	O
system	O
access	O
methods	O
.	O
</s>
<s>
The	O
1000v	O
is	O
a	O
virtual	O
switch	O
for	O
use	O
in	O
virtual	O
environments	O
including	O
both	O
VMware	O
vSphere	O
and	O
Microsoft	O
Hyper-V	O
It	O
is	O
as	O
such	O
not	O
a	O
physical	O
box	O
but	O
a	O
software	O
application	O
that	O
interacts	O
with	O
the	O
hypervisor	O
so	O
you	O
can	O
virtualize	O
the	O
networking	O
environment	O
and	O
be	O
able	O
to	O
configure	O
your	O
system	O
as	O
if	O
all	O
virtual	O
servers	O
have	O
connections	O
to	O
a	O
physical	O
switch	O
and	O
include	O
the	O
capabilities	O
that	O
a	O
switch	O
offers	O
such	O
as	O
multiple	O
VLANs	B-General_Concept
per	O
virtual	O
interface	O
,	O
layer-3	O
options	O
,	O
security	O
features	O
etc	O
.	O
</s>
<s>
Per	O
infrastructure/cluster	O
you	O
have	O
one	O
VM	O
running	O
the	O
Nexus	O
1000v	O
as	O
virtual	B-Application
appliance	I-Application
,	O
this	O
is	O
the	O
VSM	O
or	O
Virtual	O
Supervisor	O
Module	O
and	O
then	O
on	O
each	O
node	O
you	O
would	O
have	O
a	O
'	O
client	O
 '	O
or	O
Virtual	O
Ethernet	O
Module	O
(	O
VEM	O
)	O
a	O
vSwitch	O
which	O
replaces	O
the	O
standard	O
vSwitch	O
.	O
</s>
<s>
The	O
VEM	O
uses	O
the	O
vDS	O
API	B-Application
,	O
which	O
was	O
developed	O
by	O
VMware	O
and	O
Cisco	O
together	O
VMware	O
announced	O
in	O
May	O
2017	O
,	O
vDS	O
API	B-Application
support	O
will	O
be	O
removed	O
from	O
vSphere	O
6.5	O
Update	O
2	O
and	O
later	O
.	O
</s>
<s>
The	O
configuration	O
of	O
VEMs	O
is	O
done	O
via	O
the	O
VSM	O
NX-OS	B-Operating_System
Command-line	B-Application
interface	I-Application
.	O
</s>
<s>
The	O
Virtual	O
Supervisor	O
Module	O
or	O
VSM	O
would	O
normally	O
run	O
as	O
a	O
virtual	B-Application
appliance	I-Application
in	O
an	O
ESX/ESXi	O
cluster	O
but	O
it	O
is	O
possible	O
to	O
run	O
the	O
VSM	O
on	O
dedicated	O
hardware	O
:	O
the	O
Nexus	O
1010	O
,	O
1010x	O
and	O
1100	O
.	O
</s>
<s>
The	O
capabilities	O
and	O
limitations	O
of	O
a	O
VSM	O
running	O
on	O
a	O
Nexus1010	O
are	O
the	O
same	O
as	O
a	O
VSM	O
running	O
as	O
virtual	B-Application
appliance	I-Application
under	O
ESX	O
.	O
</s>
<s>
The	O
Nexus	O
2000	O
series	O
are	O
fabric	O
extenders	O
(	O
FEX	O
)	O
:	O
'	O
top	O
of	O
rack	O
 '	O
1U	O
high	O
system	O
that	O
can	O
be	O
used	O
in	O
combination	O
with	O
higher	O
end	O
Nexus	O
switches	O
like	O
the	O
5000	O
,	O
6000	O
or	O
7000	O
series	O
:	O
the	O
2000	O
series	O
is	O
not	O
a	O
'	O
stand-alone	O
'	O
switch	O
but	O
needs	O
to	O
be	O
connected	O
to	O
a	O
parent	O
and	O
should	O
be	O
seen	O
as	O
a	O
'	O
module	O
 '	O
or	O
'	O
remote	O
line	O
card	O
 '	O
but	O
then	O
installed	O
in	O
a	O
19	B-Application
"	I-Application
rack	I-Application
instead	O
of	O
in	O
a	O
main	O
switch-enclosure	O
.	O
</s>
<s>
The	O
interconnection	O
between	O
this	O
'	O
remote	O
line	O
card	O
 '	O
and	O
the	O
5000	O
or	O
7000	O
parent	O
switch	O
uses	O
either	O
proprietary	O
interfaces	O
(	O
CX-1	O
for	O
copper	O
or	O
the	O
short	O
or	O
long	O
range	O
Cisco	O
Fabric	O
Extender	O
Transceiver	O
(	O
FET	O
)	O
interfaces	O
)	O
,	O
or	O
standard	O
interfaces	O
(	O
Cisco	O
SFP+	B-Protocol
SR	O
and	O
LR	O
fibre	O
interface	O
modules	O
or	O
SFP+	B-Protocol
Twinax	O
cables	O
)	O
.	O
</s>
<s>
Three	O
models	O
offer	O
24	O
or	O
48	O
Gbit/s	O
only	O
or	O
1	O
Gbit/s/fastethernet	O
copper	O
interfaces	O
and	O
up	O
to	O
four	O
10	O
Gigabit	O
uplink	O
interfaces	O
on	O
copper	O
or	O
fibre	O
.	O
</s>
<s>
The	O
Nexus	O
2232PP	O
offers	O
thirty-two	O
1/10	O
Gbit/s	O
ethernet	O
and	O
FCoE	B-Protocol
interfaces	O
.	O
</s>
<s>
The	O
Nexus	O
2248PQ	O
offers	O
forty-eight	O
1/10	O
Gbit/s	O
ethernet	O
and	O
FCoE	B-Protocol
interfaces	O
.	O
</s>
<s>
For	O
the	O
HP	O
BladeSystem	O
C3000	O
and	O
C7000	O
server	B-Architecture
blade	I-Architecture
chassis	O
,	O
the	O
Cisco	B-Protocol
Nexus	I-Protocol
B22HP	O
fabric	O
extender	O
exists	O
.	O
</s>
<s>
The	O
Fujitsu	O
PRIMERGY	O
BX400	O
and	O
BX900	O
blade	B-Architecture
server	I-Architecture
chassis	O
uses	O
the	O
B22F	O
fabric	O
extender	O
.	O
</s>
<s>
For	O
the	O
Dell	B-Application
M1000e	I-Application
blade	B-Architecture
server	I-Architecture
chassis	O
,	O
the	O
Cisco	B-Protocol
Nexus	I-Protocol
B22Dell	O
fabric	O
extender	O
was	O
released	O
in	O
January	O
2013	O
,	O
which	O
is	O
2.5	O
years	O
after	O
the	O
initially	O
planned	O
release	O
.	O
</s>
<s>
The	O
Nexus	O
B22FEX	O
offer	O
16	O
x	O
10	O
Gbase-KR	O
internal	O
10	O
Gbit/s	O
link	O
to	O
each	O
blade-server	O
interface	O
and	O
up	O
to	O
8	O
SFP+	B-Protocol
ports	O
for	O
uplink	O
with	O
a	O
Nexus	O
5010	O
,	O
5548	O
or	O
5596	O
switch	O
.	O
</s>
<s>
The	O
maximum	O
distance	O
between	O
the	O
FEX	O
and	O
the	O
mother-switch	O
is	O
3	O
kilometer	O
when	O
it	O
is	O
only	O
used	O
for	O
TCP/IP	O
traffic	O
and	O
300	O
meter	O
when	O
carrying	O
also	O
FCoE	B-Protocol
traffic	O
.	O
</s>
<s>
The	O
1U	O
rack-switch	O
with	O
1	O
,	O
10	O
and	O
40	O
Gbit/s	O
ethernet	O
interfaces	O
is	O
designed	O
for	O
use	O
in	O
colo	B-Application
center	I-Application
.	O
</s>
<s>
Offers	O
layer	B-Application
2	I-Application
and	I-Application
layer	I-Application
3	I-Application
capabilities	O
at	O
wire-speed	O
for	O
all	O
64	O
interfaces	O
running	O
in	O
10	O
Gbit/s	O
.	O
</s>
<s>
Layer3	O
routing	O
protocols	O
supported	O
include	O
static	O
routes	O
,	O
RIP	B-Protocol
v2	I-Protocol
,	O
OSPF	B-Protocol
and	O
BGP-4	B-Protocol
.	O
</s>
<s>
The	O
switch	O
is	O
capable	O
of	O
building	O
a	O
route-table	O
with	O
up	O
to	O
16000	O
prefixes	O
,	O
8000	O
host-entries	O
and	O
4000	O
multicast	O
routes	O
and	O
up	O
to	O
4096	O
VLANs	B-General_Concept
are	O
supported	O
.	O
</s>
<s>
To	O
connect	O
the	O
3064	O
to	O
the	O
rest	O
of	O
the	O
network	O
the	O
use	O
of	O
proprietary	O
EtherChannel	B-Protocol
or	O
Link	B-Architecture
aggregation	I-Architecture
using	O
industry-standard	O
LACP	O
or	O
IEEE	O
802.3ad	O
is	O
supported	O
with	O
up	O
to	O
32	O
port-channels	O
with	O
each	O
up	O
to	O
16	O
physical	O
interfaces	O
.	O
</s>
<s>
The	O
Nexus	O
4000	O
series	O
consists	O
of	O
only	O
the	O
model	O
4001	O
:	O
a	O
blade-switch	O
module	O
for	O
IBM	B-General_Concept
BladeCenter	I-General_Concept
that	O
has	O
all	O
10	O
Gbit	O
Fibre	B-Protocol
Channel	I-Protocol
over	I-Protocol
Ethernet	I-Protocol
or	O
FCoE	B-Protocol
interfaces	O
.	O
</s>
<s>
This	O
blade-switch	O
had	O
14	O
server-facing	O
downlinks	O
running	O
on	O
1	O
Gbit/s	O
or	O
10	O
Gbit/s	O
and	O
six	O
uplinks	O
using	O
10	O
Gbit/s	O
SFP+	B-Protocol
modules	O
.	O
</s>
<s>
For	O
out-of-band	O
management	O
three	O
ethernet-interfaces	O
are	O
available	O
:	O
one	O
external	O
10/100/1000	O
bit/s	O
copper	O
interface	O
,	O
one	O
internal	O
management	O
interface	O
for	O
the	O
AMM	O
or	O
Advanced	O
Management	O
Module	O
and	O
one	O
in-band	O
interface	O
using	O
the	O
VLAN	B-General_Concept
interface	O
option	O
.	O
</s>
<s>
At	O
present	O
only	O
switches	O
for	O
the	O
IBM	O
blade	B-Architecture
systems	I-Architecture
are	O
available	O
.	O
</s>
<s>
For	O
the	O
HP	O
blade	B-Architecture
system	I-Architecture
Cisco	O
released	O
a	O
Fabric	O
Extender	O
,	O
which	O
compares	O
with	O
the	O
Nexus	O
2000	O
top	O
of	O
rack	O
devices	O
,	O
but	O
then	O
in	O
a	O
blade-form	O
factor	O
.	O
</s>
<s>
The	O
Nexus	O
5000	O
series	O
is	O
a	O
range	O
of	O
5	O
models	O
1U	O
or	O
2U	O
rack-switches	O
offering	O
20	O
to	O
96	O
interfaces	O
running	O
on	O
1	O
or	O
10	O
Gbit/s	O
ethernet	O
and	O
10	O
Gbit/s	O
FCoE	B-Protocol
interfaces	O
.	O
</s>
<s>
A	O
one	O
rack-unit	O
high	O
switch	O
with	O
20	O
fixed	O
10	O
Gbit/s	O
supporting	O
ethernet	O
,	O
FCoE	B-Protocol
and	O
DCB	B-Protocol
interfaces	O
and	O
one	O
expansion	O
port	O
offering	O
one	O
of	O
the	O
following	O
modules	O
:	O
</s>
<s>
8	O
ports	O
SFP+	B-Protocol
10	O
Gbit/s	O
ethernet	O
and	O
FCoE	B-Protocol
plus	O
8	O
ports	O
1	O
,	O
2	O
,	O
4	O
or	O
8	O
native	O
fibre-channel	O
.	O
</s>
<s>
The	O
difference	O
between	O
the	O
5548P	O
and	O
5548UP	O
is	O
that	O
the	O
5548Ps	O
fixed	O
(	O
on-board	O
)	O
SFP+	B-Protocol
slots	O
are	O
non-unified	O
there	O
where	O
the	O
same	O
SFP+	B-Protocol
slots	O
on	O
the	O
UP	O
chassis	O
are	O
unified	O
.	O
</s>
<s>
Nexus	O
5596T	O
:	O
a	O
two-RU	O
chassis	O
with	O
48	O
fixed	O
ports	O
(	O
32	O
of	O
10G	O
Base-T	O
+	O
16	O
SFP+	B-Protocol
)	O
and	O
up	O
to	O
48	O
additional	O
interfaces	O
in	O
three	O
expansion	O
slots	O
.	O
</s>
<s>
The	O
Cisco	B-Protocol
Nexus	I-Protocol
6000	O
range	O
contains	O
two	O
models	O
,	O
the	O
6001	O
model	O
and	O
the	O
6004	O
model	O
.	O
</s>
<s>
They	O
can	O
be	O
used	O
as	O
layer2	O
and	O
layer3	O
switches	O
and	O
can	O
aggregate	O
traffic	O
from	O
the	O
Fabric	O
Extenders	O
(	O
FEX	O
)	O
for	O
different	O
blade-server	O
systems	O
.	O
</s>
<s>
Both	O
models	O
support	O
either	O
front	O
to	O
back	O
or	O
back	O
to	O
front	O
airflow	O
and	O
they	O
do	O
support	O
Fibre	B-Protocol
Channel	I-Protocol
over	I-Protocol
Ethernet	I-Protocol
in	O
combination	O
with	O
a	O
'	O
full	O
 '	O
FCoE	B-Protocol
switch	O
(	O
e.g.	O
</s>
<s>
Nexus	O
5500	O
or	O
Brocade	O
8000	O
switch	O
(	O
which	O
is	O
same	O
as	O
Dell	B-Operating_System
PowerConnect	I-Operating_System
8000e	O
or	O
blade	B-Architecture
version	O
PCM	O
8428-k	O
)	O
)	O
.	O
</s>
<s>
The	O
basic	O
chassis	O
offers	O
48	O
fixed	O
QSFP+	B-Protocol
ports	O
at	O
40	O
Gbit/s	O
each	O
,	O
each	O
can	O
be	O
split	O
in	O
4	O
x	O
10Gbit/s	O
SFP+	B-Protocol
ports	O
.	O
</s>
<s>
Besides	O
the	O
48	O
QSFP+	B-Protocol
ports	O
the	O
chassis	O
can	O
hold	O
up	O
to	O
4	O
expansion	O
modules	O
-	O
each	O
offering	O
12	O
additional	O
40Gbit/s	O
QSFP+	B-Protocol
ports	O
-	O
thus	O
in	O
total	O
up	O
to	O
96	O
QSFP+	B-Protocol
ports	O
or	O
384	O
SFP+	B-Protocol
/10Gbit/s	O
ports	O
and	O
when	O
aggregating	O
FEX	O
up	O
to	O
1536	O
(	O
blade	B-Architecture
)	O
server	O
ports	O
at	O
1	O
or	O
10Gbit/s	O
.	O
</s>
<s>
The	O
base	O
configuration	O
of	O
the	O
6004-EF	O
must	O
have	O
2	O
x	O
12	O
port	O
40GbE	B-Protocol
expansion	O
modules	O
,	O
delivering	O
24	O
ports	O
of	O
40GbE	B-Protocol
or	O
96	O
ports	O
of	O
10GbE	O
.	O
</s>
<s>
The	O
Nexus	O
9000	O
series	O
is	O
a	O
range	O
of	O
many	O
models	O
2U	O
to	O
21U	O
rack-switches	O
offering	O
60	O
to	O
2304	O
interfaces	O
running	O
on	O
100Mb	B-Protocol
,	O
1Gb	O
,	O
10Gb	O
,	O
25Gb	B-Protocol
,	O
40Gb	B-Protocol
,	O
100Gb	B-Protocol
,	O
400Gb	B-Protocol
Ethernet	O
,	O
10/25/40	O
Gb	O
FCoE	B-Protocol
interfaces	O
.	O
</s>
<s>
Base	O
Model	O
Form	O
Factor	O
Variants	O
Available	O
ports/Modules	O
Number	O
of	O
power	O
supplies	O
Number/Type	O
of	O
supervisors	O
Expansion	O
type	O
Sync	O
End-of-life	O
(	O
only	O
major	O
notices	O
listed	O
)	O
Comments	O
Nexus	O
2000	O
SeriesCisco	O
Nexus	O
2000	O
Series	O
Product	O
Line	O
Fixed	O
234823322248223222242148Cisco	O
Nexus	O
2000	O
model	O
list	O
24	O
8P8C/2	O
SFP48	O
8P8C/4	O
SFPCisco	O
Nexus	O
2000	O
model	O
types	O
1	O
GE32	O
8P8C/4	O
SFP48	O
8P8C/6	O
SFP32	O
8P8C( 	O
1/10G	O
)	O
/8	O
SFP+Cisco	O
Nexus	O
2000	O
model	O
types	O
10G	O
SFP48	O
SFP+	B-Protocol
/2	O
to	O
6	O
SFP+32	O
SFP+	B-Protocol
/8	O
SFP+Cisco	O
Nexus	O
2000	O
model	O
types	O
10G-Base	O
Series	O
only	O
behaves	O
as	O
FEX	O
.	O
</s>
