Juniper QFX5120 Series Installation instructions

QFX5120 Switch Hardware Guide
Published
2019-10-15

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 © 2019 Juniper Networks, Inc. All rights reserved.
The information in this document is current as of the date on the title page.
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.
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Table of Contents
About the Documentation | xi
Documentation and Release Notes | xi
Using the Examples in This Manual | xi
Merging a Full Example | xii
Merging a Snippet | xiii
Documentation Conventions | xiii
Documentation Feedback | xvi
Requesting Technical Support | xvi
Self-Help Online Tools and Resources | xvii
Creating a Service Request with JTAC | xvii
Overview
1
QFX5120 System Overview | 21
QFX5120 Switches Hardware Overview | 21
Benefits of the QFX5120 Switch | 22
QFX5120 Hardware | 22
System Software | 27
QFX5120 Power System | 27
QFX5120 Switch Models | 28
Identifying QFX5120 Switch Models | 30
Chassis Physical Specifications for QFX5120 Switches | 31
Field-Replaceable Units in QFX5120 Switches | 32
QFX5120 Chassis | 32
QFX5120 Cooling System | 33
QFX5120 Models with Front-to-Back Airflow | 33
QFX5120 Models with Back-to-Front Airflow | 34
Positioning the Switch | 36
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QFX5120 Fan Module Status | 36
Management Port LEDs on QFX5120 Switches | 37
Network Port LEDs on QFX5120 Switches | 38
QFX5120 Cooling System | 41
QFX5120 Cooling System | 42
QFX5120 Models and Airflow Direction | 43
QFX5120 Models with Front-to-Back Airflow | 45
QFX5120 Models with Back-to-Front Airflow | 47
Positioning the Switch | 48
QFX5120 Fan Module Status | 49
QFX5120 Power System | 49
AC Power Supply in QFX5120 Switches | 50
AC Power Supply Specifications for QFX5120 Switches | 50
AC Power Supply Airflow | 51
AC Power Supply Specifications for QFX5120 Switches | 52
AC Power Cord Specifications for QFX5120 Switches | 53
AC Power Supply LEDs in QFX5120 Switches | 55
DC Power Supply in QFX5120 Switches | 57
Characteristics of a DC Power Supply | 58
DC Power Supply Airflow | 59
QFX5120 DC Power Specifications | 60
DC Power Supply LEDs in QFX5120 Switches | 60
Site Planning, Preparation, and Specifications
2
Site Preparation Checklist for QFX5120 Switches | 65
QFX5120 Site Guidelines and Requirements | 66
Environmental Requirements and Specifications for QFX5120 Switches | 66
General Site Guidelines | 68
Site Electrical Wiring Guidelines | 68
Rack Requirements for QFX5120 Switches | 69
Cabinet Requirements for QFX5120 Switches | 70
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Clearance Requirements for Airflow and Hardware Maintenance for QFX5120 Switches | 71
QFX5120 Network Cable and Transceiver Planning | 73
Pluggable Transceivers Supported on QFX5120 Switches | 73
SFP28 Direct Attach Copper Cables for QFX5120 Switches | 74
Cable Specifications | 75
Standards Supported by These Cables | 75
QSFP28 Direct Attach Copper Cables for QFX5120 Switches | 76
Cable Specifications | 76
Section | ?
Cable Specifications for QSFP+ and QSFP28 Transceivers on QFX5120 Switches | 77
Calculating the Fiber-Optic Cable Power Budget for QFX Series Switches | 78
Calculating the Fiber-Optic Cable Power Margin for QFX Series Switches | 79
QFX5120 Management Cable Specifications and Pinouts | 81
Console Port Connector Pinout Information | 81
RJ-45 Management Port Connector Pinout Information | 82
RJ-45 to DB-9 Serial Port Adapter Pinout Information | 83
QSFP+,QSFP28, SFP, SFP+, and SFP28 Port Connector Pinout Information | 83
Initial Installation and Configuration
3
Unpacking and Mounting the QFX5120 Switch | 91
Unpacking the Switch | 91
Parts Inventory (Packing List) for a QFX5120 Switch | 92
Registering Products—Mandatory for Validating SLAs | 93
Mounting a QFX5120 Switch on Four Posts of a Rack or Cabinet | 93
Connecting the QFX5120 to Power | 98
Connecting Earth Ground to a QFX5120 Switch | 98
Connecting AC Power to a QFX5120 Switch | 99
Connecting DC Power to a QFX5120 Switch | 101
Connecting the QFX5120 to the Network | 106
Installing a Transceiver | 106
Connecting a Fiber-Optic Cable | 109
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Connecting the QFX5120 to External Devices | 110
Connecting a Device to a Network for Out-of-Band Management | 110
Connecting a Device to a Management Console by Using an RJ-45 Connector | 111
Configuring Junos OS on the QFX5120 | 112
QFX5120 Default Configuration | 113
Connecting and Configuring a QFX5120 Switch | 113
Maintaining Components
4
Maintaining the QFX5120 Cooling System | 121
Removing a Fan Module from a QFX5120 Switch | 121
Installing a Fan Module in a QFX5120 Switch | 122
Maintaining the QFX5120 Power System | 124
Removing Power Supply from a QFX5120 Switch | 124
Connecting AC Power to a QFX5120 Switch | 126
Maintaining Transceivers | 129
Removing a Transceiver | 129
Removing a QSFP28 Transceiver | 132
Installing a Transceiver | 134
Installing a QSFP28 Transceiver | 136
Maintaining Fiber-Optic Cables | 138
Connecting a Fiber-Optic Cable | 138
Disconnecting a Fiber-Optic Cable | 139
Maintaining Fiber-Optic Cables | 140
Troubleshooting Hardware
5
Troubleshooting QFX5120 Components | 145
Understanding Alarms | 145
Interface Alarm Messages | 146
Creating an Emergency Boot Device | 147
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Contacting Customer Support and Returning the Chassis or Components
6
Returning a QFX5120 Chassis or Components | 151
Returning a QFX5120 Switch or Component for Repair or Replacement | 151
Locating the Serial Number on a QFX5120 Switch or Component | 152
Listing the Switch and Components Details with the CLI | 152
Locating the Chassis Serial Number ID Label on a QFX5120 Switch | 152
Locating the Serial Number ID Labels on FRUs in a QFX5120 Switch | 153
Contacting Customer Support to Obtain Return Material Authorization | 154
Packing a QFX5120 Switch or Component for Shipping | 155
Packing a QFX5120 Switch for Shipping | 155
Packing QFX5120 Switch Components for Shipping | 157
Safety and Compliance Information
7
General Safety Guidelines and Warnings | 161
Definitions of Safety Warning Levels | 162
Qualified Personnel Warning | 164
Warning Statement for Norway and Sweden | 165
Fire Safety Requirements | 165
Fire Suppression | 165
Fire Suppression Equipment | 165
Installation Instructions Warning | 167
Chassis and Component Lifting Guidelines | 167
Restricted Access Warning | 169
Ramp Warning | 171
Rack-Mounting and Cabinet-Mounting Warnings | 171
Grounded Equipment Warning | 176
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Radiation from Open Port Apertures Warning | 177
Laser and LED Safety Guidelines and Warnings | 178
General Laser Safety Guidelines | 178
Class 1 Laser Product Warning | 179
Class 1 LED Product Warning | 180
Laser Beam Warning | 181
Maintenance and Operational Safety Guidelines and Warnings | 181
Battery Handling Warning | 183
Jewelry Removal Warning | 184
Lightning Activity Warning | 186
Operating Temperature Warning | 187
Product Disposal Warning | 189
General Electrical Safety Guidelines and Warnings | 190
Action to Take After an Electrical Accident | 191
Prevention of Electrostatic Discharge Damage | 191
AC Power Electrical Safety Guidelines | 193
AC Power Disconnection Warning | 194
DC Power Electrical Safety Guidelines | 195
DC Power Disconnection Warning | 196
DC Power Grounding Requirements and Warning | 198
DC Power Wiring Sequence Warning | 200
DC Power Wiring Terminations Warning | 203
Multiple Power Supplies Disconnection Warning | 206
TN Power Warning | 207
Agency Approvals for QFX5120 Switches | 207
Compliance Statements for EMC Requirements for the QFX Series | 209
QFX 5120 | 209
Canada | 210
viii

European Community | 211
Israel | 211
Japan | 211
Korea | 212
Tawain | 212
United States | 212
Nonregulatory Environmental Standards | 213
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About the Documentation
IN THIS SECTION
Documentation and Release Notes | xi
Using the Examples in This Manual | xi
Documentation Conventions | xiii
Documentation Feedback | xvi
Requesting Technical Support | xvi
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.
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.
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