CH A P T E R
1
Using a Fabric Extender with a Cisco Nexus 5000
Series Switch
This chapter describes the Cisco Nexus 2000 Series Fabric Extenders (FEXs) and includes these
sections:
•
Information About Using a Fabric Extender with a Cisco Nexus 5000 Series Switch, page 1-1
•
Cisco Nexus 2248TP-E, page 1-1
•
Cisco Nexus 2248TP, page 1-10
•
Cisco Nexus 2248PQ, page 1-17
•
Cisco Nexus 2232TM-10GE, Cisco NexusN2K-C2232TM-E-10GE, page 1-21
•
1Cisco Nexus 2224TP, page 1-27
•
1Cisco Nexus 2224TP, page 1-27
•
Cisco Nexus 2148T, page 1-31
Information About Using a Fabric Extender with a Cisco Nexus
5000 Series Switch
The Cisco Nexus 2000 Series Fabric Extenders (FEXs) support Gigabit Ethernet and 10-Gigabit Ethernet
environments while allowing transparent migration to 10-Gigabit Ethernet virtual machine aware unified
fabric technologies. The Cisco Nexus 2000 Series FEXs behave as remote I/O modules for a parent Cisco
Nexus 5000 Series switch. The FEX is an extension of the parent Cisco Nexus switch fabric, with the
FEX and the parent Cisco Nexus switch together forming a virtual modular system.
A Cisco Nexus 2000 Series FEX forwards all the traffic to the parent Cisco Nexus 5000 Switch over
10-Gigabit Ethernet uplinks. Passing all traffic to the parent switch allows traffic to be shaped according
to policies established on the parent Cisco Nexus 5000 Series switch with a single point of management.
Cisco Nexus 2248TP-E
The Cisco Nexus 2248TP-E is a stackable 1 RU 17.2-inch (45 cm) deep FEX that supports 48 1000-TX
host-facing (downlink) ports and 4 10-Gigabit SFP+ network-facing (uplink) ports. You can order it with
front-to-back or back-to-front air cooling, and with AC or DC power supplies.
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Chapter 1
Using a Fabric Extender with a Cisco Nexus 5000 Series Switch
Cisco Nexus 2248TP-E
You can use this FEX with the Cisco Nexus 5000 Series switch. The Cisco Nexus 2248TP-E is managed
and configured by the upstream switch. The FEX software ships with the Cisco Nexus 5000 Series
switch software. The FEX downloads the software image from the switch the same way that a module
would download it from the supervisor in a modular chassis.
This section includes the following topics:
•
Chassis, page 1-2
•
Ports, page 1-3
•
Power Supplies, page 1-3
•
Fan Trays, page 1-7
•
Supported Transceivers and Cables, page 1-9
Chassis
The Cisco Nexus 2248TP-E FEX chassis has a height of 1.72 inches (4.37 cm), a width of 17.3 inches
(43.94 cm), and a depth of 17.7 inches (44.96 cm). It weighs 17.7 pounds (8.0 kg). Its one-rack-unit (1
RU) form factor takes up relatively little space, making it easy to incorporate into rack designs. The FEX
is mounted in a standard 19-inch (48.26 cm) rack. All switch ports at the rear of the unit are in close
proximity to server ports, and all user-serviceable components are accessible from the front panel.
You can order it with front-to-back or back-to-front air cooling, and with AC or DC power supplies. If
you are going to install the chassis with its front end facing the cold aisle, you must order the chassis
with front-to-back air flow. If you are going to install the chassis with its back end facing the cold aisle,
you must order the chassis with back-to-front airflow.
Figure 1-1 shows the location of the components found on the front of the chassis, and Figure 1-2 shows
the location of components found on the rear of the chassis. For information on what the chassis and
component LEDs indicate, see Table D-1 on page D-2.
Figure 1-1
Front View of the Cisco Nexus 2248TP-E Chassis
1
3
4
239288
2
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Cisco Nexus 2248TP-E
1
Power supply
3
Power supply (blank shown)
2
Fan tray
4
Status (top) and ID (bottom) LEDs
Figure 1-2
Rear View of the Cisco Nexus 2248TP-E Chassis
1
2
239287
3
4
1
Status (top) and ID (bottom) LEDs
3
100/1000 downlink ports (48)
2
HDMI port
4
SFP+ uplink ports (four)
Ports
The Cisco Nexus 2248TP-E FEX supports a total of 48 100/1000BASE-T ports and four 10-Gigabit
Ethernet uplinks (SFP+). It provides two types of ports: host-facing downlink ports and network-facing
uplink ports. Uplink ports are colored with yellow for connectivity to the upstream parent Cisco Nexus
5000 Series switch.
Power Supplies
The Cisco Nexus 2248TP-E FEX chassis has two bays for front-end AC or DC power supplies. This
chassis is fully functional with one power supply, but you can install a second power supply for power
redundancy. The power supply is hot swappable during operations.
Table 1-1 lists the power supplies that you can order with the Cisco Nexus 2248TP-E FEX.
Table 1-1
Power Supplies for the Cisco Nexus 2200 Platform Chassis
Power Supply
Part Number
AC power supply with front-to-back airflow
N2200-PAC-400W
AC power supply with back-to-front airflow
N2200-PAC-400W-B
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Cisco Nexus 2248TP-E
Table 1-1
Power Supplies for the Cisco Nexus 2200 Platform Chassis
Power Supply
Part Number
DC power supply with front-to-back airflow
N2200-PDC-400W
DC power supply with with back-to-front airflow
N2200-PDC-350W-B
Figure 1-3 shows an AC power supply with front-to-back airflow. Figure 1-4 shows an AC power supply
with back-to-front airflow. Figure 1-5 shows a DC power supply with front-to-back airflow. Figure 1-6
shows a DC power supply with back-to-front airflow.
Figure 1-3
AC Power Supply with Front-to-Back Airflow for the Cisco Nexus 2200 Platform
Chassis
2
3
4
239843
1
5
1
Handle
4
No black stripe (front-to-back airflow)
2
FAIL (top) and OK (bottom) LEDs
5
AC power receptacle
3
Ejector latch
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Cisco Nexus 2248TP-E
Figure 1-4
AC Power Supply with Back-to-Front Airflow for the Cisco Nexus 2200 Platform
Chassis
A2
20
PC
-40
0
3
4
5
239932
2
1
1
Handle
4
Black stripe (back-to-front airflow)
2
FAIL (top) and OK (bottom) LEDs
5
AC power receptacle
3
Ejector latch
Figure 1-5
DC Power Supply for the Cisco Nexus 2200 Platform Chassis
2
3
4
5
239933
1
1
Handle
4
Ejector latch
2
FAIL (left) and OK (right) LEDs
5
No black stripe (front-to-back airflow)
3
DC power receptacle
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Using a Fabric Extender with a Cisco Nexus 5000 Series Switch
Cisco Nexus 2248TP-E
Figure 1-6
DC Power Supply with Back-to-Front Airflow for the Cisco Nexus 2200 Platform
Chassis
A2
20
PC
-40
0
3
4
5
239932
2
1
1
Handle
4
Black stripe (back-to-front airflow)
2
FAIL (top) and OK (bottom) LEDs
5
AC power receptacle
3
Ejector latch
You can order the Cisco Nexus 2248TP-E FEX with AC power supplies that have front-to-back or
back-to-front airflow for cooling or DC power supplies that offer front-to-back airflow. The
back-to-front airflow components have a black stripe on their front surface for easy visual identification.
The front-to-back airflow components do not have a black stripe.
Caution
Be sure that all of the power supply and fan tray modules in the same chassis have the same airflow
direction and that the air intake for those modules is positioned on a cool aisle. If you install a module
that uses a different direction of airflow from the other modules in your system, you will see an error
message. If you position a chassis with its modules taking cooling air from a warm aisle, the switch can
reach an overtemperature state and shut down.
If one power supply is installed in the chassis, but the other power supply slot is empty, you should use
a blank filler panel (part number N2200-P-BLNK) to cover the empty slot. Figure 1-7 shows a blank
power supply filler panel.
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Blank Power Supply Filler Panel for the Cisco Nexus 2200 Platform Chassis
1
2
1
239290
Figure 1-7
2
Handle
Ejector latch
For power supply specifications, see the “Power Specifications” section on page B-1. To replace a power
supply, see the “Removing and Installing Power Supplies” section on page 3-17. For LED descriptions,
see Table D-1 on page D-2.
Fan Trays
The Cisco Nexus 2248TP-E FEX has one fan tray that is hot swappable during operations. Depending
on the arrangement of hot and cold aisles in your data center, you can order front-to-back airflow to
position the front of the FEX chassis in a cold aisle or back-to-front airflow to position the back of the
FEX chassis in a cold aisle. Table 1-2 lists the part numbers for each of the fan trays that you can use
with the Cisco Nexus 2248TP-E chassis.
Table 1-2
Fan Trays for the Cisco Nexus 2248TP-E FEXs
Description
Part Number
Front-to-back airflow
N2K-C2248TP-FAN
Back-to-front airflow
N2K-C2248TP-FAN-B
Figure 1-8 shows a front-to-back airflow fan tray, and Figure 1-9 shows a back-to-front airflow fan tray.
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Cisco Nexus 2248TP-E
Figure 1-8
1
Front-to-Back Airflow Fan Tray Components for the Cisco Nexus 2248TP-E and 2224TP
FEXs
2
239291
3
1
1
Captive screws (2)
2
No black stripe indicates front-to-back
airflow
Figure 1-9
3
Status LED
Back-to-Front Airflow Fan Tray for the Cisco Nexus 2248TP-E FEX
1
3
1
239934
2
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Cisco Nexus 2248TP-E
1
Captive screws (2)
3
2
Black stripe indicates back-to-front airflow
Status LED
To replace a fan tray, see the “Removing and Installing the Fan Tray” section on page 3-20. For LED
descriptions, see Table D-1 on page D-2.
Supported Transceivers and Cables
The Cisco Nexus 2248TP-E FEX supports SFP+ Ethernet transceivers. This section includes the
following topics:
•
SFP Transceivers, page 1-16
•
SFP+ Copper Cables, page 1-17
SFP Transceivers
The enhanced Small-Form-Factor Pluggable (SFP+) 10-Gigabit Ethernet transceiver is a bidirectional
device with a transmitter and receiver. It has a 20-pin connector on the electrical interface and duplex
LC connector on the optical interface. Currently, the Cisco Nexus 2248TP-E FEX supports the
short-range SFP and long-range SFP transceiver. Table 1-3 describes the SFP+ transceivers used with
the Cisco Nexus 2248TP-E FEX.
Table 1-3
SFP Transceivers for the Cisco Nexus 2248TP-E FEX
Model
Description
N2200 FET
10-Gigabit Ethernet for connections with a Cisco Nexus 5000 Series switch
SFP-10-Gigabit -SR
10-Gigabit Ethernet—short range SFP+ module
SFP-10-Gigabit -LR
10-Gigabit Ethernet—long range SFP+ module
SFP+ Copper Cables
Copper interface cables are available for use with the 10-Gigabit Ethernet SFP+ transceiver. Table 1-4
lists the available cables and provides a brief description of the cables.
Table 1-4
Copper Cables for the Cisco Nexus 2248TP-E FEX
Model
Description
SFP-H10GB-CU1M
10-Gigabit BASE-CU SFP+ Passive Cable
(1 meter)
SFP-H10GB-CU3M
10-Gigabit BASE-CU SFP+ Passive Cable
(3 meters)
SFP-H10GB-CU5M
10-Gigabit BASE-CU SFP+ Passive Cable
(5 meters)
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Using a Fabric Extender with a Cisco Nexus 5000 Series Switch
Cisco Nexus 2248TP
Cisco Nexus 2248TP
The Cisco Nexus 2248TP is a stackable 1 RU 17.2-inch (45 cm) deep FEX that supports 48 1000-TX
host-facing (downlink) ports and 4 10-Gigabit SFP+ network-facing (uplink) ports. You can order it with
front-to-back or back-to-front air cooling, and with AC or DC power supplies.
You can use this FEX with the Cisco Nexus 5000 Series switch. The Cisco Nexus 2248TP is managed
and configured by the upstream switch. The FEX software ships with the Cisco Nexus 5000 Series
switch software. The FEX downloads the software image from the switch the same way that a module
would download it from the supervisor in a modular chassis.
This section includes the following topics:
•
Chassis, page 1-10
•
Ports, page 1-12
•
Power Supplies, page 1-12
•
Fan Tray, page 1-15
•
Supported Transceivers and Cables, page 1-16
Chassis
The Cisco Nexus 2248TP FEX chassis has a height of 1.72 inches (4.37 cm), a width of 17.3 inches
(43.94 cm), and a depth of 17.7 inches (44.96 cm). It weighs 17.7 pounds (8.0 kg). Its one-rack-unit (1
RU) form factor takes up relatively little space, making it easy to incorporate into rack designs. The FEX
is mounted in a standard 19-inch (48.26 cm) rack. All switch ports at the rear of the unit are in close
proximity to server ports, and all user-serviceable components are accessible from the front panel.
You can order it with front-to-back or back-to-front air cooling, and with AC or DC power supplies. If
you are going to install the chassis with its front end facing the cold aisle, you must order the chassis
with front-to-back airflow. If you are going to install the chassis with its back end facing the cold aisle,
you must order the chassis with back-to-front airflow.
Figure 1-10 shows the location of the components found on the front of the chassis, and Figure 1-11
shows the location of components found on the rear of the chassis. For information on what the chassis
and component LEDs indicate, see Table D-1 on page D-2.
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Cisco Nexus 2248TP
Figure 1-10
Front View of the Cisco Nexus 2248TP Chassis
1
3
239288
2
4
1
Power supply
3
Power supply (blank shown)
2
Fan tray
4
Status (top) and ID (bottom) LEDs
Figure 1-11
Rear View of the Cisco Nexus 2248TP Chassis
1
2
239287
3
4
1
Status (top) and ID (bottom) LEDs
3
100/1000 downlink ports (48)
2
HDMI port
4
SFP+ uplink ports (four)
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Cisco Nexus 2248TP
Ports
The Cisco Nexus 2248TP FEX supports a total of 48 100/1000BASE-T ports and four, 10-Gigabit
Ethernet uplinks (SFP+). It provides two types of ports: host-facing downlink ports and network-facing
uplink ports. Uplink ports are differentiated with yellow for connectivity to the upstream parent Cisco
Nexus 5000 Series switch.
Power Supplies
The Cisco Nexus 2248TP FEX chassis has two bays for front-end AC or DC power supplies. This chassis
is fully functional with one power supply, but you can install a second power supply for power
redundancy. The power supply is hot swappable during operations.
Table 1-5 lists the power supplies that you can order with the Cisco Nexus 2248TP FEX.
Table 1-5
Power Supplies for the Cisco Nexus 2200 Platform Chassis
Power Supply
Part Number
AC power supply with front-to-back airflow
N2200-PAC-400W
AC power supply with back-to-front airflow
N2200-PAC-400W-B
DC power supply with front-to-back airflow
N2200-PDC-400W
DC power supply with back-to-front airflow
N2200-PDC-350W-B
Figure 1-12 shows an AC power supply with front-to-back airflow. Figure 1-13 shows an AC power
supply with back-to-front airflow. Figure 1-14 shows a DC power supply with front-to-back airflow.
Figure 1-12
AC Power Supply with Front-to-Back Airflow for the Cisco Nexus 2200 Platform
Chassis
2
3
4
5
239843
1
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Cisco Nexus 2248TP
1
Handle
4
No black stripe (front-to-back airflow)
2
OK (top) and FAULT (bottom) LEDs
5
AC power receptacle
3
Ejector latch
Figure 1-13
AC Power Supply with Back-to-Front Airflow for the Cisco Nexus 2200 Platform
Chassis
A2
20
PC
-40
0
1
3
4
5
239932
2
1
Handle
4
Black stripe (back-to-front airflow)
2
FAULT (top) and OK (bottom) LEDs
5
AC power receptacle
3
Ejector latch
Figure 1-14
DC Power Supply with Front-to-Back Airflow for the Cisco Nexus 2200 Platform
Chassis
2
3
4
5
239933
1
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Cisco Nexus 2248TP
1
Handle
4
Ejector latch
2
FAULT (top) and OK (bottom) LEDs
5
No black stripe (front-to-back airflow)
3
DC power receptacle
You can order the Cisco Nexus 2248TP FEX with AC power supplies that have front-to-back or
back-to-front airflow for cooling or DC power supplies that offer front-to-back airflow. The
back-to-front airflow components have a black stripe on their front surface for easy visual identification.
The front-to-back airflow components do not have a black stripe.
Caution
Be sure that all of the power supply and fan tray modules in the same chassis have the same airflow
direction and that the air intake for those modules is positioned on a cool aisle. If you install a module
that uses a different direction of airflow from the other modules in your system, you will see an error
message. If you position a chassis with its modules taking cooling air from a warm aisle, the switch can
reach an overtemperature state and shut down.
If one power supply is installed in the chassis, but the other power supply slot is empty, you should use
a blank filler panel (part number N2200-P-BLNK) to cover the empty slot. Figure 1-15 shows a blank
power supply filler panel.
Blank Power Supply Filler Panel for the Cisco Nexus 2200 Platform Chassis
1
2
1
Handle
239290
Figure 1-15
2
Ejector latch
For power supply specifications, see the “Power Specifications” section on page B-1. To replace a power
supply, see the “Removing and Installing Power Supplies” section on page 3-17. For LED descriptions,
see Table D-1 on page D-2.
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Cisco Nexus 2248TP
Fan Tray
The Cisco Nexus 2248TP (and 2224TP) FEX has one fan tray that is hot swappable during operations.
Depending on the arrangement of hot and cold aisles in your data center, you can order front-to-back
airflow to position the front of the FEX chassis in a cold aisle or back-to-front airflow to position the
back of the FEX chassis in a cold aisle. Table 1-6 lists the part numbers for each of the fan trays that you
can use with the Cisco Nexus 2248TP and 2224TP chassis.
Table 1-6
Fan Trays for the Cisco Nexus 2248TP and 2224TP FEXs
Description
Part Number
Front-to-back airflow
N2K-C2248-FAN
Back-to-front airflow
N2K-C2248-FAN-B
Figure 1-16 shows a front-to-back airflow fan tray, and Figure 1-17 shows a back-to-front airflow fan
tray.
Figure 1-16
1
Front-to-Back Airflow Fan Tray Components for the Cisco Nexus 2248TP and 2224TP
FEXs
2
239291
3
1
1
Captive screws (2)
2
No black stripe indicates front-to-back
airflow
3
Status LED
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Cisco Nexus 2248TP
Figure 1-17
Back-to-Front Airflow Fan Tray for the Cisco Nexus 2248TP and 2224TP FEXs
1
2
239934
3
1
1
Captive screws (2)
3
2
Black stripe indicates back-to-front airflow
Status LED
To replace a fan tray, see the “Removing and Installing the Fan Tray” section on page 3-20. For LED
descriptions, see Table D-1 on page D-2.
Supported Transceivers and Cables
The Cisco Nexus 2248TP FEX supports SFP+ Ethernet transceivers. This section includes the following
topics:
•
SFP Transceivers, page 1-16
•
SFP+ Copper Cables, page 1-17
SFP Transceivers
The enhanced Small-Form-Factor Pluggable (SFP+) 10-Gigabit Ethernet transceiver is a bidirectional
device with a transmitter and receiver. It has a 20-pin connector on the electrical interface and duplex
LC connector on the optical interface. Currently, the Cisco Nexus 2248TP FEX supports the short-range
SFP and long-range SFP transceiver. Table 1-7 describes the SFP+ transceivers used with the Cisco
Nexus 2248TP FEX.
Table 1-7
SFP Transceivers used with the Cisco Nexus 2248TP FEX
Model
Description
N2200 FET
10-Gigabit Ethernet for connections with a Cisco Nexus 5000 Series switch
SFP-10-Gigabit -SR
10-Gigabit Ethernet—short range SFP+ module
SFP-10-Gigabit -LR
10-Gigabit Ethernet—long range SFP+ module
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Cisco Nexus 2248PQ
SFP+ Copper Cables
Copper interface cables are available for use with the 10-Gigabit Ethernet SFP+ transceiver. Table 1-8
lists the available cables and provides a brief description of the cables.
Table 1-8
Copper Cables Used with the Cisco Nexus 2248TP FEX
Model
Description
SFP-H10GB-CU1M
10-Gigabit BASE-CU SFP+ Passive Cable
(1 meter)
SFP-H10GB-CU3M
10-Gigabit BASE-CU SFP+ Passive Cable
(3 meters)
SFP-H10GB-CU5M
10-Gigabit BASE-CU SFP+ Passive Cable
(5 meters)
Cisco Nexus 2248PQ
The Cisco Nexus 2248PQ is a stackable 1 RU 17.2 inch (45 cm) deep FEX that supports high-density
10-Gigabit Ethernet environments and has 48 1/10-Gigabit SFP+ host interfaces and 4 QSFP+ (16
10-Gigabit ) on network interfaces. QSFP+ connectivity simplifies cabling while lowering power and
solution costs. You can order it with front-to-back or back-to-front air cooling, which makes this FEX
compatible with hot-aisle, cold aisle data center designs.
You can use this FEX with the Cisco Nexus 5500 Series switch and the Cisco Nexus 6004 parent switch
(The supported software is Cisco Nexus OS Release 6.0(2)N1(1) ). The Cisco Nexus 2248PQ is managed
and configured by the upstream switch. The FEX software ships with the Cisco Nexus 5500 Series
switch software. The FEX downloads the software image from the switch the same way that a module
would download it from the supervisor in a modular chassis.
This section includes the following topics:
•
Chassis, page 1-17
•
Ports, page 1-18
•
Power Supplies, page 1-18
•
Fan Trays, page 1-19
•
Supported SFP+ Transceivers, page 1-19
Chassis
The Cisco Nexus 2248PQ FEX chassis has a height of 1.72 inches (4.37 cm), a width of 17.3 inches
(43.94 cm), and a depth of 17.7 inches (44.96 cm). It weighs 17.5 pounds (8.0 kg). Its one-rack-unit (1
RU) form factor takes up relatively little space, making it easy to incorporate into rack designs. The FEX
is mounted in a standard 19-inch (48.26 cm) rack. All of the switch ports at the rear of the chassis are in
close proximity to server ports, and all user-serviceable components are accessible from the front panel.
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Using a Fabric Extender with a Cisco Nexus 5000 Series Switch
Cisco Nexus 2248PQ
You can order front-to-back airflow or back-to-front airflow for cooling. If you are going to install the
chassis with its front end facing the cold aisle, you must order the chassis with front-to-back air flow. If
you are going to install the chassis with its back end facing the cold aisle, you must order the chassis
with back-to-front airflow.
Ports
The Cisco Nexus 2248PQ FEX supports a total of 48 1/10-Gigabit Ethernet/Fibre Channel over Ethernet
(FCoE) ports (SFP+) and 4 QSFP+ (16 10-Gigabit ) fabric ports. The Cisco Nexus 2248PQ provides two
types of ports: ports for end-host attachments and uplink ports. Uplink ports are differentiated with
yellow for connectivity to the upstream parent Cisco Nexus 5000 Series switch.
The Cisco Nexus 2248PQ 10GE Fabric Extender supports FCoE and Data Center Bridging (DCB) which
increases the reliability, efficiency, and scalability of Ethernet networks by allowing the switches to
support multiple traffic classes over a lossless Ethernet fabric, enabling consolidation of LAN, SAN, and
cluster environments.
Power Supplies
The Cisco Nexus 2248PQ FEX chassis has two bays for front-end AC or DC power supplies. This chassis
is fully functional with one power supply, but you can install a second power supply for power
redundancy. The power supply is hot swappable during operations.
Table 1-9 lists the power supplies that you can order with the Cisco Nexus 2248PQ FEX.
Table 1-9
Power Supplies for the Cisco Nexus 2200 Platform Chassis
Power Supply
Part Number
AC power supply with front-to-back airflow
N2200-PAC-400W
AC power supply with back-to-front airflow
N2200-PAC-400W-B
DC power supply with front-to-back airflow
N2200-PDC-400W
DC power supply with back-to-front airflow
N2200-PDC-350W-B
Figure 1-12 on page 1-12 shows an AC power supply with front-to-back airflow. Figure 1-13 on
page 1-13 shows an AC power supply with back-to-front airflow. Figure 1-14 on page 1-13 shows a DC
power supply with front-to-back airflow.
You can order the Cisco Nexus 2248PQ FEX with AC power supplies that have front-to-back or
back-to-front airflow for cooling or DC power supplies that have front-to-back airflow. The
back-to-front airflow components have a black stripe on their front surface for easy visual identification.
The front-to-back airflow components do not have a black stripe.
Table 1-5 on page 1-12 lists the power supplies that you can order with the Cisco Nexus 2200 Platform
FEXs.
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Cisco Nexus 2248PQ
Caution
Be sure that all of the power supply and fan tray modules in the same chassis have the same airflow
direction and that the air intake for those modules is positioned on a cool aisle. If you install a module
that uses a different direction of airflow from the other modules in your system, you will see an error
message. If you position a chassis with its modules taking cooling air from a warm aisle, the switch can
reach an overtemperature state and shut down.
If one power supply is installed in the chassis, but the other power supply slot is empty, you should use
a blank filler panel (N2200-P-BLNK) to cover the empty slot. Figure 1-15 on page 1-14 shows a blank
power supply filler panel.
For power supply specifications, see Table B-1 on page B-2. To replace a power supply, see the
“Removing and Installing Power Supplies” section on page 3-17.
Caution
Hot swapping of different direction fans and power supplies is not supported.
Fan Trays
The Cisco Nexus 2248PQ FEX has one fan tray that is hot swappable during operations. Depending on
whether there is a cold aisle in front of or in back of the chassis, you can order front-to-back airflow or
back-to-front airflow for the fan tray and the power supplies in the same chassis. Table 1-10 lists the part
numbers for each of the fan trays that you can use with this chassis.
Table 1-10
Fan Trays for the Cisco Nexus 2248PQ FEX
Description
Part Number
Front-to-back airflow
NXA-FAN-30CFM-F
(port side exhaust, Blue color coded fans)
Back-to-front airflow
NXA-FAN-30CFM-B
(port side cold air intake, Red color coded fans)
To replace a fan tray, see the “Removing and Installing the Fan Tray” section on page 3-20. For LED
descriptions, see Table D-1 on page D-2.
Supported SFP+ Transceivers
The Cisco Nexus 2248PQ Series FEX supports SFP+ Ethernet transceivers. This section includes the
following topics:
•
QSFP+ Transceivers, page 1-20
•
SFP Transceivers, page 1-36
•
SFP+ Copper Cables, page 1-36
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QSFP+ Transceivers
Table 1-11 lists the supported QSFP+ transceivers and provides a brief description of each.
Table 1-11
QSFP+ Transceivers Used with the Cisco Nexus 2248PQ FEX
Model
Description
QSFP-40G-SR4
40GBASE-SR4 QSFP module, (multi-mode fiber, MMF at 100m)
QSFP-40G-CSR4
40GBASE Extended CSR4 QSFP module, (multi-mode fiber, MMF at
300m)
QSFP-H40G-CU1M
Cisco 40GBASE-CR4 QSFP+ direct-attach copper cable, 1-meter,
passive
QSFP-H40G-CU3M
Cisco 40GBASE-CR4 QSFP+ direct-attach copper cable, 3-meter,
passive
QSFP-H40G-CU5M
Cisco 40GBASE-CR4 QSFP+ direct-attach copper cable, 5-meter,
passive
QSFP-4SFP10G-CU1M
Cisco 40GBASE-CR4 QSFP+ to 4 10GBASE-CU SFP+ direct-attach
breakout cable, 1-meter, passive
QSFP-4SFP10G-CU3M
Cisco 40GBASE-CR4 QSFP+ to 4 10GBASE-CU SFP+ direct-attach
breakout cable, 3-meter, passive
QSFP-4SFP10G-CU5M
Cisco 40GBASE-CR4 QSFP+ to 4 10GBASE-CU SFP+ direct-attach
breakout cable, 5-meter, passive
QSFP-H40G-AC7M
Cisco 40GBASE-CR4 QSFP+ direct-attach copper cable, 7-meter, active
QSFP-H40G-AC10M
Cisco 40GBASE-CR4 QSFP+ direct-attach copper cable, 10-meter,
active
QSFP-4X10G-AC7M
Cisco 40GBASE-CR4 QSFP+ to 4 10GBASE-CU SFP+ direct-attach
breakout cable, 7-meter, active
QSFP-4X10G-AC10M
Cisco 40GBASE-CR4 QSFP+ to 4 10GBASE-CU SFP+ direct-attach
breakout cable, 10-meter, active
SFP+ Transceivers
The enhanced Small-Form-Factor Pluggable (SFP+) 10-Gigabit Ethernet transceiver is a bidirectional
device with a transmitter and receiver. It has a 20-pin connector on the electrical interface and duplex
LC connector on the optical interface. Currently, the Cisco Nexus 2000 Series FEX supports the
short-range SFP and long-range SFP transceiver. Table 1-12 describes the SFP+ transceivers used with
the Cisco Nexus 2248PQ FEX.
Table 1-12
SFP+ Transceivers Used with the Cisco Nexus 2248PQ FEX
Model
Description
SFP-10G-SR
10-Gigabit Ethernet—short range SFP+ module
SFP-10G-LR
10-Gigabit Ethernet—long range SFP+ module
SFP-10G-ER
10-Gigabit Ethernet—extended reach SFP+ module
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Cisco Nexus 2232TM-10GE, Cisco NexusN2K-C2232TM-E-10GE
SFP+ Copper Cables
Copper interface cables are available for use with the 10-Gigabit Ethernet SFP+ transceiver. Table 1-13
lists the available cables and provides a brief description of the cables.
Table 1-13
Copper Cables Used with the Cisco Nexus 2248PQ FEX
Model
Description
SFP-H10GB-CU1M
10-Gigabit BASE-CU SFP+ Passive Cable
(1 meter)
SFP-H10GB-CU3M
10-Gigabit BASE-CU SFP+ Passive Cable
(3 meters)
SFP-H10GB-CU5M
10-Gigabit BASE-CU SFP+ Passive Cable
(5 meters)
SFP-H10GB-CU7MA
10-Gigabit BASE-CU SFP+ Active Cable
(7 meters)
SFP-H10GB-CU10MA
10-Gigabit BASE-CU SFP+ Active Cable
(10 meters)
Cisco Nexus 2232TM-10GE, Cisco NexusN2K-C2232TM-E-10GE
The Cisco Nexus 2232TM-10GE is a stackable 1 RU 17.72 inch (45 cm) deep FEX that supports 32
1/10-Gigabit Base-T host-facing (downlink) ports and 8 10-Gigabit Ethernet (SFP+) network-facing
(uplink) ports through an uplink module.
You can use this FEX with the Cisco Nexus 5000 Series switch. The Cisco Nexus 2232TM-10GE is
managed and configured by the upstream switch. The FEX software ships with the Cisco Nexus 5000
Series switch software. The FEX downloads the software image from the switch the same way that a
module would download it from the supervisor in a modular chassis.
You can use the Cisco Nexus 2232TM-E-10GE with the Cisco Nexus 5000 Series switch starting in the
NX-OS 5.2(1)N1(1) rlease and beyond
This section includes the following topics:
•
Chassis, page 1-21
•
Ports, page 1-23
•
Power Supplies, page 1-24
•
Fan Trays, page 1-25
•
Supported Transceivers and Cables, page 1-26
Chassis
The Cisco Nexus 2232TM FEX chassis has a height of 1.72 inches (4.37 cm), a width of 17.3 inches
(43.94 cm), and a depth of 17.7 inches (44.96 cm). It weighs 18.5 pounds (8.4 kg). Its one-rack-unit (1
RU) form factor takes up relatively little space, making it easy to incorporate into rack designs. The FEX
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Cisco Nexus 2232TM-10GE, Cisco NexusN2K-C2232TM-E-10GE
is mounted in a standard 19-inch (48.26 cm) rack and supports vertical orientation. All of the switch
ports at the rear of the chassis are in close proximity to server ports, and all user-serviceable components
are accessible from the front panel.
You can order it with front-to-back or back-to-front air cooling, and AC or DC power supplies. If you
are going to install the chassis with its front end facing the cold aisle, you must order the chassis with
front-to-back airflow. If you are going to install the chassis with its back end facing the cold aisle, you
must order the chassis with back-to-front airflow.
Figure 1-18 shows the location of the components on the front of the chassis, and Figure 1-19 shows the
location of components on the rear of the chassis. For information on what the chassis and component
LEDs indicate, see Table D-1 on page D-2.
Figure 1-18
Front View of the Cisco Nexus 2232TM-10GE Chassis
1
330055
2
3
4
1
Power supply
3
Power supply
2
Fan tray
4
Status (top) and ID (bottom) LEDs
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Figure 1-19
Rear View of the Cisco Nexus 2232TM Chassis
1
2
330056
3
4
1
Status and ID LEDs
3
10-Gigabit Base-T host-facing (downlink)
ports (32)
2
HDMI port
4
10-Gigabit SFP+ ports (8)
Ports
The Cisco Nexus 2232TM FEX supports a total of 32 10-Gigabit Ethernet ports (SFP+) and 8 10-Gigabit
Ethernet/FCoE uplinks (SFP+). SFP transceivers can also be plugged into the SFP+ cages to allow a
1-Gigabit downlink. The Cisco Nexus 2232TM-10GE provides two types of ports: ports for end-host
attachment and uplink ports. Uplink ports, which are colored yellow, connect to the upstream parent
Cisco Nexus 5000 Series switch.
The Cisco Nexus 2232TM-10GE supports Data Center Bridging (DCB) which increases the reliability,
efficiency, and scalability of Ethernet networks by allowing the switches to support multiple traffic
classes over a lossless Ethernet fabric. These features allow the switches to support multiple traffic
classes over a lossless Ethernet fabric, enabling consolidation of LAN, SAN, and cluster environments.
Figure 1-20 shows the ports on the rear of the Cisco Nexus 2232TM-10GE chassis.
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Cisco Nexus 2232TM-10GE, Cisco NexusN2K-C2232TM-E-10GE
Figure 1-20
Ports Located on the Rear of the Cisco Nexus 2232TM-10GE Chassis
2
3
330057
1
4
1
Status (top) and ID (bottom) LEDs
3
32 10-Gigabit BaseT host ports
2
HDMI Connector
4
8 10-Gigabit SFP+ ports
Power Supplies
The Cisco Nexus 2232TM-10GE FEX chassis has two bays for front-end AC or DC power supplies. This
chassis is fully functional with one power supply, but you can install a second power supply for power
redundancy. The power supply is hot-swappable during operations.
Table 1-14 lists the power supplies that you can order with the Cisco Nexus 2232TM-10GE FEX.
Table 1-14
Power Supplies for the Cisco Nexus 2232TM-10GE FEX
Power Supply
Part Number
AC power supply with front-to-back airflow
N2K-PAC-400W
AC power supply with back-to-front airflow
N2K-PAC-400W-B
DC power supply with front-to-back airflow
N2K-PDC-400W
Figure 1-12 on page 1-12 shows an AC power supply with front-to-back airflow. Figure 1-13 on
page 1-13 shows an AC power supply with back-to-front airflow. Figure 1-14 on page 1-13 shows a DC
power supply with front-to-back airflow.
You can order the Cisco Nexus 2232TM-10GE FEX with AC power supplies that have front-to-back or
back-to-front airflow for cooling or DC power supplies that have front-to-back airflow. The
back-to-front airflow components have a black stripe on their front surface for easy visual identification.
The front-to-back airflow components do not have a black stripe.
Caution
Be sure that all of the power supply and fan tray modules in the same chassis have the same airflow
direction and that the air intake for those modules is positioned on a cool aisle. If you install a module
that uses a different direction of airflow from the other modules in your system, you will see an error
message. If you position a chassis with its modules taking cooling air from a warm aisle, the switch can
reach an overtemperature state and shut down.
If one power supply is installed in the chassis, but the other power supply slot is empty, you should use
a blank filler panel (N2200-P-BLNK) to cover the empty slot. Figure 1-15 on page 1-14 shows a blank
power supply filler panel.
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Cisco Nexus 2232TM-10GE, Cisco NexusN2K-C2232TM-E-10GE
For power supply specifications, see Table B-1 on page B-2. To replace a power supply, see the
“Removing and Installing Power Supplies” section on page 3-17.
For LED descriptions, see Table D-1 on page D-2.
Fan Trays
The Cisco Nexus 2232TM-10GE FEX has one fan tray that is hot swappable during operations.
Depending on whether there is a cold aisle in front of or in back of the chassis, you can order
front-to-back airflow or back-to-front airflow for the fan tray and the power supplies in the same chassis.
Table 1-15 lists the part numbers for each of the fan trays that you can use with this chassis.
Table 1-15
Fan Trays for the Cisco Nexus 2232TM-10GE FEX
Description
Part Number
Front-to-back airflow
N2K-C2232-FAN
Back-to-front airflow
N2K-C2232-FAN-B
To see the components used when installing a fan tray, see Figure 1-21 (front-to-back airflow) or
Figure 1-22 (back-to-front airflow).
Figure 1-21
Front-to-Back Airflow Fan Tray for the Cisco Nexus 2232TM-10GE FEX
1
3
2
239292
4
1
1
Captive screws (2)
3
No black stripe indicates front-to-back airflow
2
Handle
4
Status LED
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Cisco Nexus 2232TM-10GE, Cisco NexusN2K-C2232TM-E-10GE
Figure 1-22
Back-to-Front Airflow Fan Tray for the Cisco Nexus 2232TM-10GE FEX
1
2
239936
3
1
1
Captive screws (2)
2
Black stripe indicates back-to-front airflow
3
Status LED
To replace a fan tray, see the “Removing and Installing the Fan Tray” section on page 3-20. For LED
descriptions, see Table D-1 on page D-2.
Supported Transceivers and Cables
The Cisco Nexus 2232TM-10GE Series FEX supports SFP+ Ethernet transceivers. This section includes
the following topics:
•
SFP Transceivers, page 1-26
•
SFP+ Copper Cables, page 1-27
SFP Transceivers
The enhanced Small-Form-Factor Pluggable (SFP+) 10-Gigabit Ethernet transceiver is a bidirectional
device with a transmitter and receiver. It has a 20-pin connector on the electrical interface and duplex
LC connector on the optical interface. Currently, the Cisco Nexus 2000 Series FEX supports the
short-range SFP and long-range SFP transceiver. Table 1-16 describes the SFP+ transceivers used with
the Cisco Nexus 2232TM-10GE FEX.
Table 1-16
SFP+ Transceivers for the Cisco Nexus 2232TM-10GE FEX
Model
Description
N2200 FET
10-Gigabit Ethernet for connections with a Cisco Nexus 5000 Series switch
SFP-10G-SR
10-Gigabit Ethernet—short range SFP+ module
SFP-10G-LR
10-Gigabit Ethernet—long range SFP+ module
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1Cisco Nexus 2224TP
Note
The N2K-C2232TF-10GE includes 16 Cisco FEX Transceivers (FET-10G=)
SFP+ Copper Cables
Copper interface cables are available for use with the 10-Gigabit Ethernet SFP+ transceiver. Table 1-17
lists the available cables and provides a brief description of the cables.
Table 1-17
Copper Cables for the Cisco Nexus 2232TM-10GE FEX
Model
Description
SFP-H10GB-CU1M
10-Gigabit BASE-CU SFP+ Passive Cable
(1 meter)
SFP-H10GB-CU3M
10-Gigabit BASE-CU SFP+ Passive Cable
(3 meters)
SFP-H10GB-CU5M
10-Gigabit BASE-CU SFP+ Passive Cable
(5 meters)
SFP-H10GB-CU7MA
10-Gigabit BASE-CU SFP+ Active Cable
(7 meters)
SFP-H10GB-CU10MA
10-Gigabit BASE-CU SFP+ Active Cable
(10 meters)
1Cisco Nexus 2224TP
The Cisco Nexus 2224TP is a stackable 1 RU FEX. This FEX is very similar to the Cisco Nexus 2248TP
except that it has 24 100/1000BASE-T downlink ports, 2 SFP+ uplink ports and you can order it with
front-to-back airflow or back-to-front airflow. You can use this FEXwith the Cisco Nexus 5000 Series
switch. The Cisco Nexus 2224TP is managed and configured by the upstream switch. The FEX software
ships with the Cisco Nexus 5000 Series switch software. The FEX downloads the software image from
the switch the same way that a module would download it from the supervisor in a modular chassis.
This section includes the following topics:
•
Chassis, page 1-28
•
Ports, page 1-29
•
Power Supplies, page 1-29
•
Fan Tray, page 1-30
•
Supported SFP+ Transceivers, page 1-30
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1Cisco Nexus 2224TP
Chassis
The Cisco Nexus 2224TP chassis has a height of 1.72 inches (4.37 cm), a width of 17.34 inches (44.04
cm), and a depth of 18.9 inches (48.1 cm). It weighs 18 pounds (8.0 kg). Its one-rack-unit (1 RU) form
factor takes up relatively little space, making it easy to incorporate into rack designs. The FEX is
mounted in a standard 19-inch (48.26-cm) rack. It has front-to-back or back-to-front airflow for cooling.
All switch ports are located at the rear of the unit in close proximity to server ports, and all
user-serviceable components are accessible from the front panel.
Figure 1-23 shows the location of the components on the front of the chassis, and Figure 1-24 shows the
location of components on the rear of the chassis. For information on what the chassis and component
LEDs indicate, see Table D-1 on page D-2.
Figure 1-23
Front of the Cisco Nexus 2224TP Chassis
1
3
239281
2
4
1
Power supply
3
Power supply (blank power supply shown)
2
Fan tray (1)
4
Status (top) and ID (bottom) LEDs
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1Cisco Nexus 2224TP
Figure 1-24
Rear View of the Nexus 2224TP Chassis
1
2
239280
3
4
1
Status (top) and ID (bottom) LEDs
3
100/1000BASE-T data ports (24)
2
HDMI port
4
SFP+ uplink ports (2)
Ports
The Cisco Nexus 2224TP FEX supports a total of 24 100/1000BASE-T downlink ports and two SFP+
uplink ports on the rear panel. There is an HDMI port on the rear panel for console and management port
connectivity. Uplink ports are colored yellow for connectivity to the upstream parent Cisco Nexus 5000
Series switch.
Power Supplies
The Cisco Nexus 2224TP FEX chassis has two bays for front-end AC or DC power supplies (the same
power supplies used for the Cisco Nexus 2248TP). This chassis is fully functional with one power
supply, but you can install a second power supply for power redundancy. The power supply is hot
swappable during operations.
Table 1-18 lists the power supplies that you can order with the Cisco Nexus 2224TP FEX.
Table 1-18
Power Supplies for the Cisco Nexus 2224TP FEX
Power Supply
Part Number
AC power supply with front-to-back airflow
N2200-PAC-400W
AC power supply with back-to-front airflow
N2200-PAC-400W-B
DC power supply with front-to-back airflow
N2200-PDC-400W
DC power supply with back-to-front airflow
N2200-PDC-350W-B
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1Cisco Nexus 2224TP
To see the components that you use when installing a power supply unit, see Figure 1-12 on page 1-12
for the AC power supply with front-to-back airflow, Figure 1-13 on page 1-13 for the AC power supply
with back-to-front airflow, and Figure 1-14 on page 1-13 for the DC power supply with front-to-back
airflow.
You can order the Cisco Nexus 2224TP FEX with AC power supplies that have front-to-back or
back-to-front airflow for cooling or DC power supplies that have front-to-back airflow. The
back-to-front airflow components have a black stripe on their front surface for easy visual identification.
The front-to-back airflow components do not have a black stripe.
Caution
Be sure that all of the power supply and fan tray modules in the same chassis have the same airflow
direction and that the air intake for those modules is positioned on a cool aisle. If you install a module
that uses a different direction of airflow from the other modules in your system, you will see an error
message. If you position a chassis with its modules taking cooling air from a warm aisle, the switch can
reach an overtemperature state and shut down.
If one power supply is installed in the chassis, but the other power supply slot is empty, you should use
a blank filler panel to cover the empty slot. Figure 1-15 on page 1-14 shows a blank power supply filler
panel.
For power supply specifications, see Table B-1 on page B-2. To replace a power supply, see the
“Removing and Installing Power Supplies” section on page 3-17.
Fan Tray
The Cisco Nexus 2224TP FEX has one fan tray that is hot swappable during operations. Depending on
whether there is a cold aisle in front of or in back of the chassis, you can order front-to-back airflow or
back-to-front airflow for the fan tray and the power supplies in the same chassis. Table 1-19 lists the part
numbers for each of the fan trays that you can use with this chassis.
Table 1-19
Fan Trays for the Cisco Nexus 2224TP and 2248TP FEXs
Description
Part Number
Front-to-back airflow
N2K-C2248-FAN
Back-to-front airflow
N2K-C2248-FAN-B
To see the components used when installing one of these fan trays, see Figure 1-16 (front-to-back
airflow) or Figure 1-17 (back-to-front airflow).
To replace a fan tray, see the “Removing and Installing the Fan Tray” section on page 3-20. For LED
descriptions, see Table D-1 on page D-2.
Supported SFP+ Transceivers
The Cisco Nexus 2224TP FEX supports SFP+ Ethernet transceivers. This section includes the following
topics:
•
SFP+ Transceivers, page 1-31
•
SFP+ Copper Cables, page 1-31
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Cisco Nexus 2148T
SFP+ Transceivers
The enhanced Small-Form-Factor Pluggable (SFP+) 10-Gigabit Ethernet transceiver is a bidirectional
device with a transmitter and receiver. It has a 20-pin connector on the electrical interface and duplex
LC connector on the optical interface. Currently, the Cisco Nexus 2224TP FEX supports the short-range
SFP and long-range SFP transceiver. Table 1-20 describes the SFP+ transceivers used with the Cisco
Nexus 2224TP FEX.
Table 1-20
SFP+ Transceivers Used with the Cisco Nexus 2224TP FEX
Model
Description
N2200 FET
10-Gigabit Ethernet for connections with a Cisco Nexus 5000 Series switch
SFP-10G-SR
10-Gigabit Ethernet—short range SFP+ module
SFP-10G-LR
10-Gigabit Ethernet—long range SFP+ module
SFP+ Copper Cables
Copper interface cables are available for use with the 10-Gigabit Ethernet SFP+ transceiver. Table 1-21
lists the available cables and provides a brief description of the cables.
Table 1-21
Copper Cables Used with the Cisco Nexus 2224TP FEX
Model
Description
SFP-H10GB-CU1M
10-Gigabit BASE-CU SFP+ Passive Cable
(1 meter)
SFP-H10GB-CU3M
10-Gigabit BASE-CU SFP+ Passive Cable
(3 meters)
SFP-H10GB-CU5M
10-Gigabit BASE-CU SFP+ Passive Cable
(5 meters)
SFP-H10GB-CU7MA
10-Gigabit BASE-CU SFP+ Active Cable
(7 meters)
SFP-H10GB-CU10MA
10-Gigabit BASE-CU SFP+ Active Cable
(10 meters)
Cisco Nexus 2148T
The Cisco Nexus 2148T FEX is a 1 RU device that acts as a remote I/O module on the Cisco Nexus 5000
Series switch. All device configurations are managed on the switch and configuration information is
downloaded through inband communication to the FEX. You can use this FEX with the Cisco Nexus
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Cisco Nexus 2148T
5000 Series switch. The FEX software ships with the Cisco Nexus 5000 Series switch software. The FEX
downloads the software image from the switch the same way that a module would download it from the
supervisor in a modular chassis.
This section includes the following topics:
•
Features, page 1-32
•
Chassis, page 1-32
•
Ports, page 1-34
•
Power Supplies, page 1-34
•
Fan Tray, page 1-35
•
Supported SFP Transceivers, page 1-36
Features
The Cisco Nexus 2148T FEX has the following features:
•
Forty-eight 1-Gigabit Ethernet ports
•
Four 10-Gigabit Ethernet ports
•
Redundant (dual) 200-W modular, hot-swappable power supplies with a power switch on each
supply
•
Removable fan tray with redundant fans. The fan tray can be removed for hot swapping. If it is not
replaced within 60 seconds, the system shuts down.
•
Front-to-back airflow
Chassis
The Cisco Nexus 2148T FEX has a height of 1.72 inches (4.37 cm), a width of 17.3 inches (43.94 cm),
and a depth of 20 inches (50.8 cm). The FEX is mounted in a standard 19-inch (48.24 cm) rack. The
chassis requires 1 RU. One fan tray and two power supplies are located at the front of the device. The
ports are located at the rear of the device. The airflow through the fan tray and power supplies is from
front to back.
Figure 1-25 identifies the front view of the Cisco Nexus 2148T FEX.
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Cisco Nexus 2148T
Figure 1-25
Front View of the Cisco Nexus 2148T FEX
273914
1
1
2
1
Power supply (two)
2
Fan tray (1)
3
3
Status (top) and ID (bottom) LEDs
The rear of the Cisco Nexus 2148T FEX has 48 1-Gigabit Ethernet ports, 4 10-Gigabit Ethernet ports,
and status and ID LEDs. Figure 1-26 identifies the components found on the rear of the Cisco Nexus
2148T FEX.
Rear View of the Cisco Nexus 2148T FEX
273916
Figure 1-26
1
2
3
4
1
System status (top) and Beacon (bottom) LED 3
2
HDMI port
4
1-Gigabit Ethernet downlink ports (48)
10-Gigabit Ethernet uplink ports (4)
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Ports
Each port on the Cisco Nexus 2148T FEX is numbered, and groups of ports are numbered based on their
function. The ports are numbered from top to bottom and left to right.
Group 1 includes 48 1-Gigabit Ethernet data ports. Group 2 includes four 10-Gigabit Ethernet ports.
Figure 1-27 shows how ports are numbered and grouped by function.
Port Numbering on the Cisco Nexus 2148T FEX
A
1
B
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
1
3
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
2
4
Group 1: Data ports 1 through 48
2
192533
Figure 1-27
Group 2: Uplink ports 1 through 4
Power Supplies
The Cisco Nexus 2148T FEX uses a front-end 200-W AC power supply that has front-to-back airflow.
The chassis has two bays for two power supplies. Two power supplies can be used for redundancy, but
the Cisco Nexus 2148T FEX is fully functional with one power supply. Figure 1-28 shows the power
supply with two LEDs: one for power status and one for a failure condition. The power supply is
hot-swappable. For details on how to install a power supply, see the “Removing and Installing Power
Supplies” section on page 3-17.
AC Power Supply for the Cisco Nexus 2148T Series FEX
239274
Figure 1-28
1
2
3
1
4
Green power LED indicates the power status. 2
Amber fail LED indicates a failure condition.
If one power supply is installed in the chassis, but the other power supply slot is empty, you should use
a blank filler panel to cover the empty slot. Figure 1-29 shows a blank power supply filler panel.
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Blank Power Supply Filler Panel
1
2
1
239290
Figure 1-29
2
Handle
Ejector latch
Fan Tray
The Cisco Nexus 2148T FEX has one fan tray that has front-to-back airflow. Figure 1-30 shows the fan
tray. The fan tray is hot-swappable as long as you replace it within 60 seconds.
Figure 1-30
1
Front-to-Back Airflow Fan Tray for Cisco Nexus 2148T FEX
2
1
239291
3
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1
Captive screws (2)
3
No blck stripe indicates front-to-back airflow
2
Staus LED
Supported SFP Transceivers
The Cisco Nexus 2148T FEX supports SFP+ Ethernet transceivers. This section includes the following
topics:
•
SFP Transceivers, page 1-36
•
SFP+ Copper Cables, page 1-36
SFP Transceivers
The enhanced Small-Form-Factor Pluggable (SFP+) 10-Gigabit Ethernet transceiver is a bidirectional
device with a transmitter and receiver. It has a 20-pin connector on the electrical interface and duplex
LC connector on the optical interface. Currently, the Cisco Nexus 2000 Series FEX supports the
short-range SFP and long-range SFP transceiver. Table 1-22 describes the SFP+ transceivers used with
the Cisco Nexus 2148T FEX.
Table 1-22
SFP+ Transceivers Used with the Cisco Nexus 2148T FEX
Model
Description
SFP-10G-SR
10-Gigabit Ethernet—short range SFP+ module
SFP-10G-LR
10-Gigabit Ethernet—long range SFP+ module
SFP+ Copper Cables
Copper interface cables are available for use with the 10-Gigabit Ethernet SFP+ transceiver. Table 1-23
lists the available cables and provides a brief description of the cables.
Table 1-23
Copper Cables Used with the Cisco Nexus 2148T FEX
Model
Description
SFP-H10GB-CU1M
10-Gigabit BASE-CU SFP+ Passive Cable
(1 meter)
SFP-H10GB-CU3M
10-Gigabit BASE-CU SFP+ Passive Cable
(3 meters)
SFP-H10GB-CU5M
10-Gigabit BASE-CU SFP+ Passive Cable
(5 meters)
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Table 1-23
Copper Cables Used with the Cisco Nexus 2148T FEX
Model
Description
SFP-H10GB-CU7MA
10-Gigabit BASE-CU SFP+ Active Cable
(7 meters)
SFP-H10GB-CU10MA
10-Gigabit BASE-CU SFP+ Active Cable
(10 meters)
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