Cisco Nexus 9348D-GX2A Manual
Cisco Nexus 9348D-GX2A ACI-Mode Switch Hardware Installation
Guide
First Published: 2022-07-04
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©2022 Cisco Systems, Inc. All rights reserved.
CONTENTS
Overview 1
CHAPTER 1
Overview 1
Preparing the Site 5
CHAPTER 2
Temperature Requirements 5
Humidity Requirements 5
Altitude Requirements 5
Dust and Particulate Requirements 6
Minimizing Electromagnetic and Radio Frequency Interference 6
Shock and Vibration Requirements 7
Grounding Requirements 7
Planning for Power Requirements 7
Airflow Requirements 9
Rack and Cabinet Requirements 9
Clearance Requirements 10
Installing the Chassis 13
CHAPTER 3
Installation Options with Rack-Mount Kits 13
Install a Rack 13
Unpacking and Inspecting a New Switch 14
Planning How to Position the Chassis in the Rack 15
Installing the Chassis in a Four-Post Rack 15
Installing the Switch using the NXK-ACC-KIT2-2RU Rack-Mount Kit 16
Grounding the Chassis 22
Starting the Switch 24
Cisco Nexus 9348D-GX2A ACI-Mode Switch Hardware Installation Guide
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Connecting the Switch to the ACI Fabric 27
CHAPTER 4
ACI Fabric Topology 27
Preparing to Connect to Other Devices 28
Connecting Leaf Switches to APICs 29
Connecting Leaf Switches to Spine Switches 31
Installing a Gigabit Ethernet module (GEM) 32
Migration of Nodes From a First Generation Switch to a Second Generation Switch 32
Setting Up an Optional Console Interface 34
Setting Up an Optional Management Connection 35
Optic Transceiver Removal Using the Optics Extraction Tool 35
Maintaining Transceivers and Optical Cables 37
Replacing Components 39
CHAPTER 5
Replacing a Fan Module During Operations 39
Replacing a Power Supply Module 40
Removing an AC Power Supply 40
Installing an AC Power Supply 41
Rack Specifications 43
APPENDIX A
Overview of Racks 43
General Requirements for Cabinets and Racks 43
Requirements Specific to Standard Open Racks 44
Requirements Specific to Perforated Cabinets 44
Cable Management Guidelines 44
System Specifications 45
APPENDIX B
Environmental Specifications 45
Switch Dimensions 45
Switch and Module Weights and Quantities 46
Transceiver and Cable Specifications 46
Switch Power Input Requirements 46
Power Specifications 46
3200-W AC/HVDC Power Supply Specifications 47
Cisco Nexus 9348D-GX2A ACI-Mode Switch Hardware Installation Guide
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Contents
3200-W DC/HVDC Power Supply Specifications 47
Power Cable Specifications 47
Power Cables for NXA-PAC-3200W Power Supplies 48
Regulatory Standards Compliance Specifications 48
LEDs 51
APPENDIX C
Switch Chassis LEDs 51
Fan Module LEDs 51
Power Supply LEDs 51
Additional Kits 53
APPENDIX D
Rack Mount Kit NXK-ACC-KIT2-2RU 53
Accessory Kit NXA-ACC-QDD-DC 54
Cisco Nexus 9348D-GX2A ACI-Mode Switch Hardware Installation Guide
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Contents
Cisco Nexus 9348D-GX2A ACI-Mode Switch Hardware Installation Guide
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Contents
CHAPTER 1
Overview
•Overview, on page 1
Overview
The Cisco Nexus 9348D-GX2A switch (N9K-C9348D-GX2A) is a 2-rack unit (RU), fixed-port switch designed
for spine-leaf-APIC deployment in data centers.
This switch includes the following ports:
• 400-Gigabit QSFP-DD ports (48)
• 10-Gigabit SFP+ ports (2)
• Management ports (one RJ-45 port and one SFP port)
• Console port
• USB port
Dust covers (NXA-ACC-QDD-DC) are suggested for unused ports, to protect the connectors and help
divert airflow for thermal dispensation.
Note
Default switch role and default port-profile information for this switch:
• The default switch role: 48 x 400/100/40G + 2 x 1/10G as ACI leaf or ACI Spine (default)
• Default port profile (Leaf): 36 downlinks and 12 fabric links + 2x1/10G downlinks
This switch includes the following high power optics and MACsec:
• Up to 48 ports of MACsec with 24 ports of 20-W optics
Cisco Nexus 9348D-GX2A ACI-Mode Switch Hardware Installation Guide
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For this switch, 24 ports of 20-W optics, and 48 ports of MACsec, can be
supported either individually or together. And this 24 ports of 20-W optics
can go in the following 24 ports only: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33,
36, 39, 42, 45, 48, 26, 29, 32, 35, 38, 41, and 47.
Note
This switch includes the following user-replaceable components:
• Fan modules (four) with the following airflow choices:
• Port-side intake fan module with burgundy coloring (NXA-FAN-160CFM-PI)
If a fan fails, the other fans are automatically increased to 100% capacity
to compensate. If two fans fail, then multi fan failure policy kicks in, the
switch will issue a warning, and power down in 2 minutes.
Note
• Power supply modules (two—One for operations and one for redundancy [1+1]) with the following
choices:
• 3200-W port-side intake AC/HVDC power supply with burgundy coloring (NXA-PAC-3200W-PI)
• 3200-W port-side intake DC/HVDC power supply with burgundy coloring (NXA-PDC-3200W-PI)
Both power supplies are the same type. Do not mix AC, and DC, power
supplies.
Note
All fan modules and power supplies must use the same airflow direction.
Note
The following figure shows the switch features on the port side of the chassis.
Cisco Nexus 9348D-GX2A ACI-Mode Switch Hardware Installation Guide
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Overview
Overview
USB port (1)4SFP optical management
port (1)
1
10-Gigabit SFP+ ports (2)5Console port (1)2
400-Gigabit QSFP-DD
ports (48)
6RJ-45 copper
management port (1)
3
To determine which transceivers, adapters, and cables are support this switch, see the Cisco Transceiver
Modules Compatibility Information document.
The following figure shows the switch features on the power supply side of the chassis.
Power supply modules (1
or 2) (AC power supplies
shown) with slots
numbered 1 (top) and 2
(bottom)
2Fan modules (4) with slots
numbered from 1 (left) to
4 (right)
1
The following figure shows the side of the chassis.
Cisco Nexus 9348D-GX2A ACI-Mode Switch Hardware Installation Guide
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Overview
Overview
Grounding pad1
The fan and power supply modules are field replaceable. You can replace one fan module or one power supply
module during operations so long as the other modules are installed and operating. If you have only one power
supply installed, you can install the replacement power supply in the open slot before removing the original
power supply.
All fan and power supply modules must have the same direction of airflow. Otherwise, the switch can
overheat and shut down. If you are installing a dual-direction power supply, that module automatically
uses the same airflow direction as the other modules in the switch.
Note
If the switch has port-side intake airflow (burgundy coloring for fan modules), you must locate the ports
in the cold aisle. If the switch has port-side exhaust airflow (blue coloring for fan modules), you must
locate the ports in the hot aisle. If you locate the air intake in a hot aisle, the switch can overheat and
shut down.
Caution
Cisco Nexus 9348D-GX2A ACI-Mode Switch Hardware Installation Guide
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Overview
Overview
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