Juniper QFX5120 Hardware Guide
QFX5120 Switch Hardware Guide
Published
2021-02-22
Juniper Networks, Inc.
1133 Innovation Way
Sunnyvale, California 94089
USA
408-745-2000
www.juniper.net
Juniper Networks, the Juniper Networks logo, Juniper, and Junos are registered trademarks of Juniper Networks, Inc. in
the United States and other countries. All other trademarks, service marks, registered marks, or registered service marks
are the property of their respective owners.
Juniper Networks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right
to change, modify, transfer, or otherwise revise this publication without notice.
QFX5120 Switch Hardware Guide
Copyright © 2021 Juniper Networks, Inc. All rights reserved.
The information in this document is current as of the date on the title page.
ii
YEAR 2000 NOTICE
Juniper Networks hardware and software products are Year 2000 compliant. Junos OS has no known time-related
limitations through the year 2038. However, the NTP application is known to have some difficulty in the year 2036.
END USER LICENSE AGREEMENT
The Juniper Networks product that is the subject of this technical documentation consists of (or is intended for use with)
Juniper Networks software. Use of such software is subject to the terms and conditions of the End User License Agreement
(“EULA”) posted at https://support.juniper.net/support/eula/. By downloading, installing or using such software, you
agree to the terms and conditions of that EULA.
Table of Contents
1
About the Documentation | x
Documentation and Release Notes | x
Using the Examples in This Manual | x
Merging a Full Example | xi
Merging a Snippet | xii
Documentation Conventions | xii
Documentation Feedback | xv
Requesting Technical Support | xv
Self-Help Online Tools and Resources | xvi
Creating a Service Request with JTAC | xvi
iii
Overview
QFX5120 System Overview | 18
QFX5120 Switches Hardware Overview | 18
Benefits of the QFX5120 Switch | 19
System Software and Hardware and Software Features | 19
Channelization in QFX5120 Switches | 20
Components on the Front and Rear Panels | 21
Virtual Chassis | 31
QFX5120 Cooling System | 32
QFX5120 Power System | 32
QFX5120 Switch Models and Variants | 33
QFX5120 Switch Hardware and CLI Terminology Mapping | 35
QFX5120 Chassis | 41
Chassis Physical Specifications for QFX5120 Switches | 41
Field-Replaceable Units in QFX5120 Switches | 42
Chassis Status LEDs in QFX5120 Switches | 43
LEDs on the Management Port on QFX5120 Switches | 46
Network Port LEDs on QFX5120 Switches | 48
Network Port LEDs on QFX5120-32C Switches | 48
Network Port LEDs on QFX5120-48T Switches | 50
Network Port LEDs on QFX5120-48Y Switches | 52
Network Port LEDs on QFX5120-48YM Switches | 54
QFX5120 Cooling System | 56
Fan Modules for QFX5120 Switches | 56
QFX5120 Models and Airflow Direction | 58
QFX5120 Models with Front-to-Back Airflow | 61
QFX5120 Models with Back-to-Front Airflow | 63
How to Position the Switch | 65
QFX5120 Fan Module Status | 66
iv
QFX5120 Power System | 67
AC Power Supply in QFX5120 Switches | 67
Characteristics of the AC Power Supply for QFX5120 Switches | 68
AC Power Supply Airflow | 71
Power Supply Specifications for AC Power Supplies for QFX5120 Switches | 72
Specifications of the Power Cord for AC Power Supplies for QFX5120 Switches | 74
LEDs on the AC Power Supplies Used in QFX5120 Switches | 76
DC Power Supply in QFX5120 Switches | 79
Characteristics of the DC Power Supply | 79
DC Power Supply Airflow | 83
Power Supply Specifications for DC Power Supplies for QFX5120 Switches | 84
LEDs on the DC Power Supplies Used in QFX5120 Switches | 86
High-Voltage Power Supply for QFX5120-48T Switches | 88
Characteristics of the High-Voltage Power Supply for QFX5120-48T Switches | 89
High-Voltage Power Supply Airflow | 90
Power Supply Specifications for High-Voltage Power Supplies for QFX5120-48T
switches | 91
Specifications of the Power Cord for High-Voltage Power Supply for QFX5120-48T
Switches | 92
LEDs on the High-Voltage Power Supply Used in QFX5120-48T Switches | 96
Site Planning, Preparation, and Specifications
2
3
Site Preparation Checklist for QFX5120 Switches | 99
QFX5120 Site Guidelines and Requirements | 100
Environmental Requirements and Specifications for QFX5120 Switches | 101
General Site Guidelines | 102
Site Electrical Wiring Guidelines | 102
Rack Requirements for QFX5120 Switches | 103
Cabinet Requirements for QFX5120 Switches | 104
Clearance Requirements for Airflow and Hardware Maintenance for QFX5120 Switches | 105
QFX5120 Network Cable and Transceiver Planning | 108
Pluggable Transceivers and Direct Attach Cables Supported on QFX5120 Switches | 108
Cable Specifications for QSFP+ and QSFP28 Transceivers on QFX5120 Switches | 109
v
How to Calculate the Fiber-Optic Cable Power Budget for QFX Series Switches | 111
How to Calculate the Fiber-Optic Cable Power Margin for QFX Series Switches | 112
QFX5120 Management Cable Specifications and Pinouts | 113
Console Port Connector Pinout Information | 114
RJ-45 Management Port Connector Pinout Information | 115
RJ-45 to DB-9 Serial Port Adapter Pinout Information | 115
RJ-45 Port, SFP Port, SFP+ Port, QSFP+ Port, and QSFP28 Port Connector Pinout
Information | 116
Initial Installation and Configuration
Unpack and Mount the QFX5120 Switch | 123
Unpack the QFX5120 Switch | 123
Parts Inventory (Packing List) for a QFX5120 Switch | 124
Register Products—Mandatory to Validate SLAs | 125
Mount a QFX5120-32C Switch on a Rack or Cabinet | 126
Mount a QFX5120-48T, QFX5120-48Y, or QFX5120-48YM Switch Flush with the Front Posts
of a Rack or Cabinet | 129
Mount a QFX5120-48T, QFX5120-48Y, or QFX5120-48YM Switch in a Recessed Position
from the Front Posts of a Rack or Cabinet | 134
Mount a QFX5120-48YM Switch on a Two-Post Rack | 140
4
Connect the QFX5120 to Power | 142
Connect the QFX5120 Switch to Earth Ground | 142
Connect Power to an AC-Powered QFX5120 Switch | 148
Connect Power to a DC-Powered QFX5120 Switch | 151
Connect Power to a QFX5120-48T Switch Powered by a High-Voltage Power Supply | 156
Connect the QFX5120 to the Network | 159
Install a Transceiver | 159
Install a QSFP28 Transceiver | 162
Connect a Fiber-Optic Cable | 164
Connect the QFX5120 to External Devices | 165
Connect a Device to a Network for Out-of-Band Management | 165
vi
Connect a Device to a Management Console Using an RJ-45 Connector | 166
Connecting 1-PPS and 10-MHz Measurement Devices to the QFX5120 Switch | 167
Configure Junos OS on the QFX5120 | 168
QFX5120 Default Configuration | 168
Connect and Configure a QFX5120 Switch | 169
Maintaining Components
Maintain the QFX5120 Cooling System | 176
Remove a Fan Module from a QFX5120 Switch | 176
Install a Fan Module in a QFX5120 Switch | 178
Maintain the QFX5120 Power System | 180
Remove a Power Supply from a QFX5120 Switch | 181
Install a Power Supply in a QFX5120 Switch | 184
Maintain Transceivers | 187
Remove a Transceiver | 187
Remove a QSFP28 Transceiver | 190
Install a Transceiver | 192
Install a QSFP28 Transceiver | 194
Maintain Fiber-Optic Cables | 196
5
6
7
Connect a Fiber-Optic Cable | 196
Disconnect a Fiber-Optic Cable | 197
How to Handle Fiber-Optic Cables | 198
Troubleshooting Hardware
Troubleshoot QFX5120 Components | 201
Alarm Types and Severity Levels | 201
Interface Alarm Messages | 202
Creating an Emergency Boot Device for QFX Series Switches | 203
Chassis Component Alarm Conditions on QFX5120 Switches | 204
Contacting Customer Support and Returning the Chassis or Components
Return a QFX5120 Chassis or Components | 208
vii
How to Return a QFX5120 Switch or Component for Repair or Replacement | 208
Locate the Serial Number on a QFX5120 Switch or Component | 209
List the Switch and Components Details with the CLI | 209
Locate the Chassis Serial Number ID Label on a QFX5120 Switch | 210
Locate the Serial Number ID Labels on FRUs in a QFX5120 Switch | 211
Contact Customer Support to Obtain Return Material Authorization | 217
Pack a QFX5120 Switch or Component for Shipping | 218
Pack a QFX5120 Switch for Shipping | 218
Pack QFX5120 Switch Components for Shipping | 220
Safety and Compliance Information
General Safety Guidelines and Warnings | 223
Definitions of Safety Warning Levels | 224
Qualified Personnel Warning | 227
Warning Statement for Norway and Sweden | 228
Fire Safety Requirements | 228
Fire Suppression | 228
Fire Suppression Equipment | 228
Installation Instructions Warning | 230
Chassis and Component Lifting Guidelines | 230
Restricted Access Warning | 232
Ramp Warning | 234
Rack-Mounting and Cabinet-Mounting Warnings | 235
Grounded Equipment Warning | 241
Radiation from Open Port Apertures Warning | 242
Laser and LED Safety Guidelines and Warnings | 243
General Laser Safety Guidelines | 243
Class 1 Laser Product Warning | 244
Class 1 LED Product Warning | 245
Laser Beam Warning | 246
viii
Maintenance and Operational Safety Guidelines and Warnings | 246
Battery Handling Warning | 248
Jewelry Removal Warning | 249
Lightning Activity Warning | 251
Operating Temperature Warning | 252
Product Disposal Warning | 254
General Electrical Safety Guidelines and Warnings | 255
Action to Take After an Electrical Accident | 256
Prevention of Electrostatic Discharge Damage | 257
AC Power Electrical Safety Guidelines | 258
AC Power Disconnection Warning | 260
DC Power Electrical Safety Guidelines | 261
DC Power Disconnection Warning | 262
DC Power Grounding Requirements and Warning | 264
DC Power Wiring Sequence Warning | 266
DC Power Wiring Terminations Warning | 269
Multiple Power Supplies Disconnection Warning | 272
TN Power Warning | 273
Agency Approvals for QFX5120 Switches | 273
Compliance Statements for EMC Requirements for the QFX Series | 275
Canada | 275
European Community | 276
Israel | 276
Japan | 277
Korea | 277
Taiwan | 277
United States | 278
Nonregulatory Environmental Standards | 278
ix
Restriction of Hazardous Substances (RoHS) Directive Compliance | 279
About the Documentation
IN THIS SECTION
Documentation and Release Notes | x
Using the Examples in This Manual | x
Documentation Conventions | xii
Documentation Feedback | xv
Requesting Technical Support | xv
Use this guide to install hardware and perform initial software configuration, routine maintenance, and
troubleshooting for the QFX5120 switch. After completing the installation and basic configuration
procedures covered in this guide, refer to the Junos OS documentation for information about further
software configuration.
x
Documentation and Release Notes
To obtain the most current version of all Juniper Networks®technical documentation, see the product
documentation page on the Juniper Networks website at https://www.juniper.net/documentation/.
If the information in the latest release notes differs from the information in the documentation, follow the
product Release Notes.
Juniper Networks Books publishes books by Juniper Networks engineers and subject matter experts.
These books go beyond the technical documentation to explore the nuances of network architecture,
deployment, and administration. The current list can be viewed at https://www.juniper.net/books.
Using the Examples in This Manual
If you want to use the examples in this manual, you can use the load merge or the load merge relative
command. These commands cause the software to merge the incoming configuration into the current
candidate configuration. The example does not become active until you commit the candidate configuration.
If the example configuration contains the top level of the hierarchy (or multiple hierarchies), the example
is a full example. In this case, use the load merge command.
If the example configuration does not start at the top level of the hierarchy, the example is a snippet. In
this case, use the load merge relative command. These procedures are described in the following sections.
Merging a Full Example
To merge a full example, follow these steps:
1. From the HTML or PDF version of the manual, copy a configuration example into a text file, save the
file with a name, and copy the file to a directory on your routing platform.
For example, copy the following configuration to a file and name the file ex-script.conf. Copy the
ex-script.conf file to the /var/tmp directory on your routing platform.
system {
scripts {
commit {
file ex-script.xsl;
}
}
}
interfaces {
fxp0 {
disable;
unit 0 {
family inet {
address 10.0.0.1/24;
}
}
}
}
xi
2. Merge the contents of the file into your routing platform configuration by issuing the load merge
configuration mode command:
[edit]
user@host# load merge /var/tmp/ex-script.conf
load complete
Merging a Snippet
To merge a snippet, follow these steps:
1. From the HTML or PDF version of the manual, copy a configuration snippet into a text file, save the
file with a name, and copy the file to a directory on your routing platform.
For example, copy the following snippet to a file and name the file ex-script-snippet.conf. Copy the
ex-script-snippet.conf file to the /var/tmp directory on your routing platform.
commit {
file ex-script-snippet.xsl; }
2. Move to the hierarchy level that is relevant for this snippet by issuing the following configuration mode
command:
[edit]
user@host# edit system scripts
[edit system scripts]
xii
3. Merge the contents of the file into your routing platform configuration by issuing the load merge
relative configuration mode command:
[edit system scripts]
user@host# load merge relative /var/tmp/ex-script-snippet.conf
load complete
For more information about the load command, see CLI Explorer.
Documentation Conventions
Table 1 on page xiii defines notice icons used in this guide.
Table 1: Notice Icons
xiii
DescriptionMeaningIcon
Indicates important features or instructions.Informational note
Caution
Indicates a situation that might result in loss of data or hardware
damage.
Alerts you to the risk of personal injury or death.Warning
Alerts you to the risk of personal injury from a laser.Laser warning
Indicates helpful information.Tip
Alerts you to a recommended use or implementation.Best practice
Table 2 on page xiii defines the text and syntax conventions used in this guide.
Table 2: Text and Syntax Conventions
ExamplesDescriptionConvention
Fixed-width text like this
Italic text like this
Represents text that you type.Bold text like this
Represents output that appears on
the terminal screen.
Introduces or emphasizes important
•
new terms.
Identifies guide names.
•
Identifies RFC and Internet draft
•
titles.
To enter configuration mode, type
the configure command:
user@host> configure
user@host> show chassis alarms
No alarms currently active
A policy term is a named structure
•
that defines match conditions and
actions.
Junos OS CLI User Guide
•
RFC 1997, BGP Communities
•
Attribute
Table 2: Text and Syntax Conventions (continued)
xiv
ExamplesDescriptionConvention
Italic text like this
Text like this
< > (angle brackets)
| (pipe symbol)
Represents variables (options for
which you substitute a value) in
commands or configuration
statements.
Represents names of configuration
statements, commands, files, and
directories; configuration hierarchy
levels; or labels on routing platform
components.
variables.
Indicates a choice between the
mutually exclusive keywords or
variables on either side of the symbol.
The set of choices is often enclosed
in parentheses for clarity.
Configure the machine’s domain
name:
[edit]
root@# set system domain-name
domain-name
To configure a stub area, include
•
the stub statement at the [edit
protocols ospf area area-id]
hierarchy level.
The console port is labeled
•
CONSOLE.
stub <default-metric metric>;Encloses optional keywords or
broadcast | multicast
(string1 | string2 | string3)
# (pound sign)
[ ] (square brackets)
Indention and braces ( { } )
; (semicolon)
GUI Conventions
Indicates a comment specified on the
same line as the configuration
statement to which it applies.
Encloses a variable for which you can
substitute one or more values.
Identifies a level in the configuration
hierarchy.
Identifies a leaf statement at a
configuration hierarchy level.
rsvp { # Required for dynamic MPLS
only
community name members [
community-ids ]
[edit]
routing-options {
static {
route default {
nexthop address;
retain;
}
}
}
Table 2: Text and Syntax Conventions (continued)
xv
ExamplesDescriptionConvention
Bold text like this
> (bold right angle bracket)
Represents graphical user interface
(GUI) items you click or select.
Separates levels in a hierarchy of
menu selections.
In the Logical Interfaces box, select
•
All Interfaces.
To cancel the configuration, click
•
Cancel.
In the configuration editor hierarchy,
select Protocols>Ospf.
Documentation Feedback
We encourage you to provide feedback so that we can improve our documentation. You can use either
of the following methods:
Online feedback system—Click TechLibrary Feedback, on the lower right of any page on the Juniper
•
Networks TechLibrary site, and do one of the following:
Click the thumbs-up icon if the information on the page was helpful to you.
•
Click the thumbs-down icon if the information on the page was not helpful to you or if you have
•
suggestions for improvement, and use the pop-up form to provide feedback.
E-mail—Send your comments to techpubs-comments@juniper.net. Include the document or topic name,
•
URL or page number, and software version (if applicable).
Requesting Technical Support
Technical product support is available through the Juniper Networks Technical Assistance Center (JTAC).
If you are a customer with an active Juniper Care or Partner Support Services support contract, or are
covered under warranty, and need post-sales technical support, you can access our tools and resources
online or open a case with JTAC.
JTAC policies—For a complete understanding of our JTAC procedures and policies, review the JTAC User
•
Guide located at https://www.juniper.net/us/en/local/pdf/resource-guides/7100059-en.pdf.
Product warranties—For product warranty information, visit https://www.juniper.net/support/warranty/.
•
JTAC hours of operation—The JTAC centers have resources available 24 hours a day, 7 days a week,
•
365 days a year.
Self-Help Online Tools and Resources
For quick and easy problem resolution, Juniper Networks has designed an online self-service portal called
the Customer Support Center (CSC) that provides you with the following features:
Find CSC offerings: https://www.juniper.net/customers/support/
•
Search for known bugs: https://prsearch.juniper.net/
•
xvi
Find product documentation: https://www.juniper.net/documentation/
•
Find solutions and answer questions using our Knowledge Base: https://kb.juniper.net/
•
Download the latest versions of software and review release notes:
•
https://www.juniper.net/customers/csc/software/
Search technical bulletins for relevant hardware and software notifications:
•
https://kb.juniper.net/InfoCenter/
Join and participate in the Juniper Networks Community Forum:
•
https://www.juniper.net/company/communities/
Create a service request online: https://myjuniper.juniper.net
•
To verify service entitlement by product serial number, use our Serial Number Entitlement (SNE) Tool:
https://entitlementsearch.juniper.net/entitlementsearch/
Creating a Service Request with JTAC
You can create a service request with JTAC on the Web or by telephone.
Visit https://myjuniper.juniper.net.
•
Call 1-888-314-JTAC (1-888-314-5822 toll-free in the USA, Canada, and Mexico).
•
For international or direct-dial options in countries without toll-free numbers, see
https://support.juniper.net/support/requesting-support/.
1
CHAPTER
Overview
QFX5120 System Overview | 18
QFX5120 Chassis | 41
QFX5120 Cooling System | 56
QFX5120 Power System | 67
QFX5120 System Overview
IN THIS SECTION
QFX5120 Switches Hardware Overview | 18
QFX5120 Switch Models and Variants | 33
QFX5120 Switch Hardware and CLI Terminology Mapping | 35
QFX5120 Switches Hardware Overview
18
IN THIS SECTION
Benefits of the QFX5120 Switch | 19
System Software and Hardware and Software Features | 19
Channelization in QFX5120 Switches | 20
Components on the Front and Rear Panels | 21
Virtual Chassis | 31
QFX5120 Cooling System | 32
QFX5120 Power System | 32
The QFX5120 line of switches delivers low latency, flexible deployment options, and rich automation
features. QFX5120 Switches build a strong underlay foundation for flexible, high-performance,
standards-based fabrics and routing that improve network reliability and agility.
The QFX5120 switch is available in four models—QFX5120-32C, QFX5120-48T, QFX5120-48Y, and
QFX5120-48YM. Each model is available in two variants featuring AC power supplies with front-to-back
or back-to-front airflow and two models featuring DC power supplies with front-to-back or back-to-front
airflow.
For a brief overview of the QFX5120-48T switch, see:
Video: QFX5120-48T Switch Hardware Overview
For a brief overview of the QFX5120-48Y switch, see:
Video: QFX5120-48Y Switch Hardware Overview
For a brief overview of the QFX5120-48YM switch, see:
Video: QFX5120-48YM Switch Hardware Overview
Benefits of the QFX5120 Switch
EVPN-VXLAN architecture - QFX5120 Switches support IP fabrics with EVPN-VXLAN overlays, enabling
Layer 2/3 network virtualization.
Hop-by-hop encryption - QFX5120-48YM supports IEEE 802.1AE MACsec AES-256 on all ports to help
secure data center and Ethernet-based DCI/WAN deployments.
Synchronization services – Support for PTP enables QFX5120 to meet the requirements of the financial
services industry (FSI) and the broadcasting media industry.
19
Industry-leading wire speeds—QFX5120 switches offer 25-Gbps and 100-Gbps wire speeds.
Support for channelization—You can channelize the QSFP28 ports and increase the number of interfaces.
Support for Virtual Chassis—QFX5120-32C, QFX5120-48T, and QFX5120-48Y switches support Virtual
Chassis technology. You can interconnect up to two QFX5120-32C, QFX5120-48T, or QFX5120-48Y
switches in a Virtual Chassis configuration.
System Software and Hardware and Software Features
Juniper Networks QFX Series Switches run Junos operating system (Junos OS), which provides Layer 2
and Layer 3 switching, routing, and security services. The first Junos OS release and hardware and software
features supported on the models are listed in Table 3 on page 20.
Table 3: First Junos OS Release and Hardware and Software Features Supported on QFX5120 Switch
Models
20
Switch
Model
QFX512032C
QFX512048T
QFX512048Y
QFX512048YM
First Junos OS
Release
Supported
Junos OS
Release
19.1R1
Junos OS
Release
20.2R1
Junos OS
Release
18.3R1
Junos OS
Release
20.4R1
2.2-GHz quad-core Intel CPU
•
16-GB memory
•
64-GB SSD storage
•
2.2-GHz quad-core Intel CPU
•
16-GB memory
•
100-GB SSD storage
•
2.2-GHz quad-core Intel CPU
•
16-GB memory
•
50-GB SSD storage
•
2.9-GHz quad-core Intel CPU
•
16-GB memory
•
100-GB SSD storage
•
Aggregate
Throughput
(Bidirectional)Hardware Features
6.4 Tbps
2.16 Tbps
4 Tbps
4 Tbps
Software Features
Feature-rich automation
•
capabilities with support
for Python, Ansible,
YANG, Chef, and
zero-touch provisioning
(ZTP)
Support for VXLAN as a
•
Layer 2 or Layer 3
gateway and Open
vSwitch Database
(OVSDB) protocol as a
Layer 2 gateway
Advanced Junos OS
•
features such as EVPN,
BGP, MPLS, Layer 3 VPN,
IPv6 Provider Edge (6PE),
telemetry, segment
routing, and MC-LAG
Channelization in QFX5120 Switches
QFX5120 switches support channelization. You can channelize the 100GbE/40GbE quad small form-factor
pluggable (QSFP28) ports into interfaces by connecting breakout cables and by using CLI configuration.
Table 4 on page 21 lists the channelization supported on the models.
Table 4: Channelization in QFX5120 Switches
Supported
ChannelizationPort SpeedPortsSwitch Model
21
For More Information
NOTE: On
port 31, you
cannot
configure four
10GbE
interfaces or
four 25GbE
interfaces.
Four 10GbE interfaces40 Gbps0 through 30QFX5120-32C
Four 25GbE interfaces100 Gbps0 through 30
Two 50GbE interfaces100 Gbps0 through 31
Four 10GbE interfaces40 Gbps50 and 51QFX5120-48T
Four 25GbE interfaces100 Gbps50 and 51
Two 50GbE interfaces100 Gbps48 through 53
Channelizing Interfaces on
QFX5120-32C Switches
Channelizing Interfaces on
QFX5120-48T Switches
Components on the Front and Rear Panels
IN THIS SECTION
QFX5120-32C Switches | 22
QFX5120-48T Switches | 23
Four 10GbE interfaces40 Gbps48 through 55QFX5120-48Y
Four 25GbE interfaces100 Gbps48 through 55
Four 10GbE interfaces40 Gbps50 and 52QFX5120-48YM
Four 25GbE interfaces100 Gbps50 and 52
Two 50GbE interfaces100 Gbps50 and 52
Channelizing Interfaces on
QFX5120-48Y Switches
Channelizing Interfaces on
QFX5120-48YM Switches
QFX5120-48Y Switches | 26
g051100
432
6 5 37
1
QFX5120-32C
QFX5120-48YM Switches | 28
QFX5120-32C Switches
Figure 1 on page 22 shows the front view of the QFX5120-32C switch.
Figure 1: QFX5120-32C—Front View
Figure 2 on page 22 shows the rear view of the QFX5120-32C switch.
22
Figure 2: QFX5120-32C—Rear View
Figure 3 on page 22 shows the components on the front panel of a QFX5120-32C switch.
Figure 3: Components on the Front Panel of a QFX5120-32C Switch
5—1— RJ-45 console port (labeled CON)QSFP28 ports
6—2— Chassis ID LED (labeled ID)RJ-45 management port (labeled MGMT)
7—3— Reset buttonSFP+ ports
4—USB port
Figure 4 on page 23 shows the components on the rear panel of a QFX5120-32C switch with AC power
supplies.
Figure 4: Components on the Rear Panel of a QFX5120-32C Switch with AC Power Supplies
g051102
1
3
2 1
g051103
3
1
2 1
3—1— Fan module LEDsAC power supply
2—Fan modules
Figure 5 on page 23 shows the components on the rear panel of a QFX5120-32C switch with DC power
supplies.
Figure 5: Components on the Rear Panel of a QFX5120-32C Switch with DC Power Supplies
23
3—1— Fan module LEDsDC power supply
2—Fan modules
QFX5120-48T Switches
Figure 6 on page 23 shows the front view of the QFX5120-48T switch.
Figure 6: QFX5120-48T—Front View
Figure 7 on page 24 shows the rear view of the QFX5120-48T switch.
Figure 7: QFX5120-48T—Rear View
Figure 8 on page 24 shows the components on the front panel of a QFX5120-48T switch.
Figure 8: Components on the Front Panel of a QFX5120-48T Switch
2—1— 100GbE/40GbE QSFP28 ports10-Gbps BASE-T ports
24
Figure 9 on page 24 shows the components on the rear panel of a QFX5120-48T switch with AC power
supplies.
Figure 9: Components on the Rear Panel of a QFX5120-48T Switch with AC Power Supplies
8—1— Fan module LEDsChassis status LEDs (labeled ALM, SYS, MST, and ID)
9—2— 10M OUT portRJ-45 management port (labeled MGMT)
10—3— USB portPPS OUT port
11—4— RJ-45 console port (labeled CON)ESD point
12—5— Reset buttonFan modules
7—AC power supply LEDs
13—6— CLEI code labelAC power supplies
Figure 10 on page 25 shows the components on the rear panel of a QFX5120-48T switch with DC power
supplies.
Figure 10: Components on the Rear Panel of a QFX5120-48T Switch with DC Power Supplies
8—1— Fan module LEDsChassis status LEDs (labeled ALM, SYS, MST, and ID)
9—2— 10M OUT portRJ-45 management port
10—3— USB portPPS OUT port
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11—4— RJ-45 console portESD point
12—5— Reset buttonFan modules
13—6— CLEI code labelDC power supplies
7—DC power supply LEDs
Figure 11 on page 26 shows the components on the rear panel of a QFX5120-48T switch with high-voltage
power supplies.
Figure 11: Components on the Rear Panel of a QFX5120-48T Switch with High-Voltage Power Supplies
8—1— Fan module LEDsChassis status LEDs (labeled ALM, SYS, MST, and ID)
9—2— 10M OUT portRJ-45 management port
10—3— USB portPPS OUT port
11—4— RJ-45 console portESD point
12—5— Reset buttonFan modules
26
13—6— CLEI code labelHigh-voltage power supplies
7—High-voltage power supply LEDs
QFX5120-48Y Switches
Figure 12 on page 26 shows the front view of the QFX5120-48Y switch.
Figure 12: QFX5120-48Y—Front View
Figure 13 on page 26 shows the rear view of the QFX5120-48Y switch.
Figure 13: QFX5120-48Y—Rear View
Figure 14 on page 27 shows the components on the front panel of a QFX5120-48Y switch.
Figure 14: Components on the Front Panel of a QFX5120-48Y Switch
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1 2
2—1— QSFP28 portsSFP28 ports
NOTE:
The SFP28 ports are grouped in quads (groups of four) and you can configure the speed of
•
the ports only in quads; you cannot configure the speed for a single SFP28 port.
The SFP28 ports can operate at 25-Gbps, 10-Gbps, or 1-Gbps speed, based on the configuration
•
set at the quad level. The ports are configured to operate at 10-Gbps speed by default. If you
need the ports to support the other speeds, you must configure those speeds.
27
CAUTION: Do not install 1GbE copper transceivers (such as QFX-SFP-1GE-T) directly
above or below another 1GbE copper transceiver. Use only the top row or bottom
row to avoid damage to the device caused by some types of copper transceivers when
the transceivers are installed above or below each other. However, if you are using
copper transceivers with the OEM part number FCLF8521P2BTL-J1 printed on the
transceiver label, you can install the transceivers in any port with no restrictions. For
devices that support 10GbE copper transceivers, there is no similar restriction.
Figure 15 on page 28 shows the components on the rear panel of a QFX5120-48Y switch with AC power
supplies.
Figure 15: Components on the Rear Panel of a QFX5120-48Y Switch with AC Power Supplies
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1 3 4
5 6
2
12 11 10 89 7 7
7—1— Power supply LEDsChassis status LEDs
8—2— Fan module LEDsRJ-45 console port
9—3— RJ-45 management port (labeled C0)RJ-45 management port (labeled C1)
10—4— Reset buttonESD point
11—5— USB portFan modules
12—6— CLEI code labelPower supplies
28
Figure 16 on page 28 shows the components on the rear panel of a QFX5120-48Y switch with DC power
supplies.
Figure 16: Components on the Rear Panel of a QFX5120-48Y Switch with DC Power Supplies
7—1— Power supply LEDsChassis status LEDs
8—2— Fan module LEDsRJ-45 console port
9—3— RJ-45 management port (labeled C0)RJ-45 management port (labeled C1)
10—4— Reset buttonESD point
11—5— USB portFan modules
QFX5120-48YM Switches
Figure 17 on page 29 shows the front view of the QFX5120-48YM switch.
12—6— CLEI code labelPower supplies
Figure 17: QFX5120-48YM—Front View
Figure 18 on page 29 shows the rear view of the QFX5120-48YM switch.
Figure 18: QFX5120-48YM—Rear View
Figure 19 on page 29 shows the components on the front panel of a QFX5120-48YM switch.
Figure 19: Components on the Front Panel of a QFX5120-48YM Switch
29
2—1— QSFP28 portsSFP28 ports
NOTE:
The SFP28 ports are grouped in quads (groups of four) and you can configure the speed of
•
the ports only in quads; you cannot configure the speed for a single SFP28 port.
The SFP28 ports can operate at 25-Gbps, 10-Gbps, or 1-Gbps speed, based on the configuration
•
set at the quad level. The ports are configured to operate at 10-Gbps speed by default. If you
need the ports to support the other speeds, you must configure those speeds.
Figure 20 on page 30 shows the components on the rear panel of a QFX5120-48YM switch with AC power
supplies.
Figure 20: Components on the Rear Panel of a QFX5120-48YM Switch with AC Power Supplies
7—1— Power supply LEDsChassis status LEDs (labeled ALM, SYS, MST, and ID)
8—2— Fan module LEDsRJ-45 console port
9—3— 10M OUT and PPS OUT portsRJ-45 management port (labeled C1)
10—4— RJ-45 management port (labeled C0)ESD point
11—5— Reset buttonFan modules
30
12—6— USB portPower supplies
Figure 21 on page 30 shows the components on the rear panel of a QFX5120-48YM switch with DC
power supplies.
Figure 21: Components on the Rear Panel of a QFX5120-48YM Switch with DC Power Supplies
7—1— Power supply LEDsChassis status LEDs (labeled ALM, SYS, MST, and ID)
8—2— Fan module LEDsRJ-45 console port
9—3— 10M OUT and PPS OUT portsRJ-45 management port (labeled C1)
10—4— RJ-45 management port (labeled C0)ESD point
11—5— Reset buttonFan modules
12—6— USB portPower supplies
The CLEI code label is on the top panel of QFX5120-48YM switches, above the management ports.
Figure 22 on page 31 shows the location of the CLEI code label.
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