Juniper QFX Series Installation instructions

QFX5110 Switch Hardware Guide
Modified: 2019-04-02
Copyright © 2019, Juniper Networks, Inc.

Juniper Networks, Inc.
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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.
QFX5110 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.
Copyright © 2019, Juniper Networks, Inc.ii

Table of Contents
AbouttheDocumentation............................................xiii
DocumentationandReleaseNotes.................................xiii
UsingtheExamplesinThisManual.................................xiii
MergingaFullExample.......................................xiv
MergingaSnippet...........................................xiv
Documentation Conventions ......................................xv
DocumentationFeedback........................................xvii
RequestingTechnicalSupport....................................xvii
Self-Help Online Tools and Resources . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
Creating a Service Request with JTAC . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
Chapter1 Overview .........................................................19
QFX5110SystemOverview............................................19
QFX5110HardwareOverview......................................19
BenefitsofQFX5110..........................................19
QFX5110ModelsOverview....................................20
QFX5110-48SHardware......................................22
QFX5110-32QHardware......................................22
SystemSoftware............................................23
QFX5110HardwareModels........................................24
Understanding Hardware Redundancy of QFX5110 Components and
Functionality ...............................................25
QFX5110Field-ReplaceableUnits..................................25
QFX5110PortPanels................................................26
QFX5110-48SPortPanel.........................................27
SwitchOverview.............................................27
NetworkPorts..............................................28
ChannelizingInterfaces.......................................28
Virtual Chassis and Virtual Chassis Fabric . . . . . . . . . . . . . . . . . . . . . . . . 28
QFX5110-32QPortPanel.........................................29
SwitchOverview ............................................29
NetworkPorts..............................................30
ChannelizingInterfaces.......................................30
Virtual Chassis and Virtual Chassis Fabric . . . . . . . . . . . . . . . . . . . . . . . . 32
QFX5110NetworkPortLEDs.......................................32
QFX5110ManagementPanel.........................................34
QFX5110 Management Panel Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
QFX5110ManagementPortLEDs..................................36
QFX5110ChassisStatusLEDs.....................................37
iiiCopyright © 2019, Juniper Networks, Inc.

QFX5110CoolingSystem.............................................39
QFX5110 Cooling System and Airflow Description . . . . . . . . . . . . . . . . . . . . . 39
Fan Modules ...............................................40
Do Not Install Components with Different Airflow or Wattage in the
Switch.................................................43
QFX5110FanModuleLED.........................................44
QFX5110PowerSystem..............................................45
QFX5110 AC Power Supply Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
QFX5110ACPowerSpecifications..................................47
QFX5110 AC Power Cord Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
QFX5110ACPowerSupplyLEDs...................................48
QFX5110 DC Power Supply Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
QFX5110DCPowerSpecifications..................................51
QFX5110DCPowerSupplyLEDs...................................52
Chapter 2 Site Planning, Preparation, and Specifications . . . . . . . . . . . . . . . . . . . . . . . . 55
QFX5110SitePreparationChecklist....................................55
QFX5110 Site Guidelines and Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
QFX5110 Environmental Requirements and Specifications . . . . . . . . . . . . . . 56
GeneralSiteGuidelines..........................................58
QFX5120 Site Electrical Wiring Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
QFX5110 Chassis Grounding Cable and Lug Specifications . . . . . . . . . . . . . . 59
QFX5110 Clearance Requirements for Airflow and Hardware
Maintenance ...............................................60
QFX5110 Chassis Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
QFX5110RackRequirements......................................61
QFX5110 Deployment in a Virtual Chassis or Virtual Chassis Fabric . . . . . . . . . . . 62
Planning a Virtual Chassis Deployment using QFX Devices . . . . . . . . . . . . . . 62
Valid Configurations for a QFX Virtual Chassis . . . . . . . . . . . . . . . . . . . . . 63
Valid Configurations for a QFX5110 Virtual Chassis . . . . . . . . . . . . . . . . . 64
Valid Configurations for a QFX5200 Virtual Chassis . . . . . . . . . . . . . . . . 64
VCDeploymentChecklist.....................................64
Virtual Chassis Fabric Hardware Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Planning a Virtual Chassis Fabric Deployment . . . . . . . . . . . . . . . . . . . . . . . . 67
QFX5110 Network Cable and Transceiver Planning . . . . . . . . . . . . . . . . . . . . . . . . 69
Determining Transceiver Support for the QFX5110 . . . . . . . . . . . . . . . . . . . . . 69
Cable Specifications for QSFP+ and QSFP28 Transceivers . . . . . . . . . . . . . . 70
Understanding QFX Series Fiber-Optic Cable Signal Loss, Attenuation, and
Dispersion..................................................72
Signal Loss in Multimode and Single-Mode Fiber-Optic Cables . . . . . . . 72
Attenuation and Dispersion in Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . 72
Calculating Power Budget and Power Margin for Fiber-Optic Cables . . . . . . . 73
Calculating Power Budget for Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . 73
Calculating Power Margin for Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . 74
QFX5110 Management Cable Specifications and Pinouts . . . . . . . . . . . . . . . . . . . 75
Cable Specifications for Console and Management Connections for the
QFXSeries.................................................75
RJ-45 Management Port Connector Pinout Information . . . . . . . . . . . . . . . . . 76
Console Port Connector Pinouts for the QFX Series . . . . . . . . . . . . . . . . . . . . 76
Copyright © 2019, Juniper Networks, Inc.iv
QFX5110 Switch Hardware Guide

RJ-45 Port, QSFP+ Port, QSFP28 Port, SFP+ Port, and SFP Port Connector
PinoutInformation...........................................77
USB Port Specifications for the QFX Series . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Chapter 3 Initial Installation and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
QFX5110InstallationOverview........................................85
StandaloneInstallationOverview..................................85
Virtual Chassis Fabric Installation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 86
QFX5110 Installation Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
UnpackingandMountingtheQFX5110..................................88
UnpackingaQFX5110............................................88
Registering Products—Mandatory for Validating SLAs . . . . . . . . . . . . . . . . . . 89
MountingaQFX5110inaRack.....................................89
Before You Begin Rack Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Connecting the QFX5110 to External Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Connecting the QFX5110 to Grounding Cable . . . . . . . . . . . . . . . . . . . . . . . . . 92
Connecting a Device to a Network for Out-of-Band Management . . . . . . . . 93
Connecting a Device to a Management Console by Using an RJ-45
Connector .................................................94
ConnectingtheQFX5110toPower.....................................95
ConnectingACPowertoaQFX5110.................................95
ConnectingDCPowertoaQFX5110.................................97
Connecting the QFX5110 in a Virtual Chassis or Virtual Chassis Fabric . . . . . . . . . 101
Connecting QFX5110 and QFX5100 Members in a QFX5110 Virtual
Chassis ...................................................101
Connecting QFX5110 in a QFX5110 Virtual Chassis Fabric . . . . . . . . . . . . . . . 102
ConfiguringaQFX5110..............................................104
Chapter4 Maintaining Components .........................................107
MaintainingQFX5110FanModules....................................107
Removing a Fan Module from a QFX5110 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Installing a Fan Module in a QFX5110 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Maintaining QFX5110 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Removing a Power Supply from a QFX5110 . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Installing a Power Supply in a QFX5110 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Removing and Installing Transceivers and Fiber-Optic Cables on QFX5110 . . . . . 113
RemovingaTransceiver..........................................113
InstallingaTransceiver...........................................116
Disconnecting a Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
ConnectingaFiber-OpticCable...................................119
MaintainingFiber-OpticCables....................................119
PoweringOffaQFX5110.............................................120
RemovingaQFX5110fromaRack.....................................122
Chapter5 Troubleshooting Hardware ........................................125
TroubleshootingtheQFX5110.........................................125
QFX5110 Troubleshooting Resources Overview . . . . . . . . . . . . . . . . . . . . . . . 125
QFX Series Alarm Messages Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
ChassisAlarmMessages.........................................126
vCopyright © 2019, Juniper Networks, Inc.
Table of Contents

Chapter 6 Contacting Customer Support and Returning the Chassis or
Components .....................................................131
Contacting Customer Support to Obtain Return Material Authorization . . . . . . . 131
Returning the QFX5110 Chassis or Components . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Locating the Serial Number on a QFX5110 Device or Component . . . . . . . . . 132
Listing the Chassis and Component Details Using the CLI . . . . . . . . . . . 132
Locating the Chassis Serial Number ID Label on a QFX5110 . . . . . . . . . 133
Locating the Serial Number ID Labels on FRU Components . . . . . . . . . 133
Returning a Hardware Component to Juniper Networks, Inc. . . . . . . . . . . . . 134
Guidelines for Packing Hardware Components for Shipment . . . . . . . . . . . . 135
Chapter 7 Safety and Compliance Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
General Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Definitions of Safety Warning Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
QualifiedPersonnelWarning.........................................140
Warning Statement for Norway and Sweden . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
FireSafetyRequirements............................................141
FireSuppression................................................141
FireSuppressionEquipment......................................141
InstallationInstructionsWarning......................................142
RestrictedAccessWarning...........................................143
RampWarning....................................................144
Rack-Mounting and Cabinet-Mounting Warnings . . . . . . . . . . . . . . . . . . . . . . . . 144
GroundedEquipmentWarning.......................................148
Radiation from Open Port Apertures Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Laser and LED Safety Guidelines and Warnings for the QFX Series . . . . . . . . . . . 149
Class1MLaserProductWarning...................................150
Class1MLaserRadiationWarning.................................150
Unterminated Fiber-Optic Cable Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Maintenance and Operational Safety Guidelines and Warnings . . . . . . . . . . . . . 152
BatteryHandlingWarning........................................152
JewelryRemovalWarning........................................153
LightningActivityWarning........................................154
OperatingTemperatureWarning..................................155
ProductDisposalWarning........................................156
General Electrical Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . 157
Action to Take After an Electrical Accident . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Prevention of Electrostatic Discharge Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
AC Power Electrical Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
ACPowerDisconnectionWarning.....................................160
DC Power Electrical Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
DCPowerDisconnectionWarning.....................................162
DC Power Grounding Requirements and Warning . . . . . . . . . . . . . . . . . . . . . . . . . 163
DCPowerWiringSequenceWarning...................................164
DC Power Wiring Terminations Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Multiple Power Supplies Disconnection Warning . . . . . . . . . . . . . . . . . . . . . . . . . 167
Copyright © 2019, Juniper Networks, Inc.vi
QFX5110 Switch Hardware Guide

TNPowerWarning.................................................167
QFX5110AgencyApprovals..........................................168
Agency Approvals for the QFX Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
Compliance Statements for EMC Requirements for the QFX Series . . . . . . 169
Canada ...................................................170
European Community .......................................170
Israel .....................................................170
Japan .....................................................171
Korea .....................................................171
Tawain ....................................................171
UnitedStates...............................................171
Nonregulatory Environmental Standards . . . . . . . . . . . . . . . . . . . . . . . . 172
Statements of Volatility for Juniper Network Devices . . . . . . . . . . . . . . . . . . . . . . 172
viiCopyright © 2019, Juniper Networks, Inc.
Table of Contents

Copyright © 2019, Juniper Networks, Inc.viii
QFX5110 Switch Hardware Guide

List of Figures
Chapter1 Overview .........................................................19
Figure1:QFX5110-48SPortPanel......................................22
Figure2:QFX5110-32QPortPanel......................................23
Figure3:QFX5110-48SPortPanel......................................27
Figure4:QFX5110-32QPortPanel.....................................30
Figure5:QFX5110Switch,FRUEnd.....................................35
Figure 6: Management Panel Components on QFX5110 . . . . . . . . . . . . . . . . . . . . 35
Figure 7: Management Port LEDs on a QFX5110 . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 8: Chassis Status LEDs on a QFX5110 Switch . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure9:QFX5110FanModule........................................40
Figure 10: Air In Airflow Through the QFX5110-48S . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 11: Air Out Airflow Through the QFX5110-48S . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 12: Air In Airflow Through the QFX5110-32Q . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 13: Air Out Airflow Through the QFX5110-32Q . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 14: Fan Module LED in a QFX5110 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Figure 15: AC Power Supply in QFX5110 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Figure 16: Power Supply Handle Detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Figure 17: AC Power Supply LEDs on a QFX5110 Switch . . . . . . . . . . . . . . . . . . . . . 49
Figure 18: DC Power Supply for the QFX5110 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Figure 19: DC Power Supply Faceplate on a QFX5110 . . . . . . . . . . . . . . . . . . . . . . . 50
Figure 20: DC Power Supply Faceplate on a QFX5110 Switch . . . . . . . . . . . . . . . . 52
Chapter 2 Site Planning, Preparation, and Specifications . . . . . . . . . . . . . . . . . . . . . . . . 55
Figure 21: Clearance Requirements for Airflow and Hardware Maintenance for
aQFX5110.....................................................60
Chapter 3 Initial Installation and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Figure 22: Connecting a Grounding Cable to a QFX5110 . . . . . . . . . . . . . . . . . . . . . 93
Figure 23: RJ-45 Connector on an Ethernet Cable . . . . . . . . . . . . . . . . . . . . . . . . . 93
Figure 24: Connecting a Device to a Network for Out-of-Band Management . . . 94
Figure 25: RJ-45 Connector on an Ethernet Cable . . . . . . . . . . . . . . . . . . . . . . . . . 94
Figure 26: Connecting a Device to a Management Console Through a Console
Server ........................................................95
Figure 27: Connecting a Device Directly to a Management Console . . . . . . . . . . . 95
Figure 28: Connecting an AC Power Cord to an AC Power Supply in a
QFX5110.......................................................97
Figure 29: DC Power Supply Faceplate for a QFX5110 . . . . . . . . . . . . . . . . . . . . . 100
Figure 30: Securing Ring Lugs to the Terminals on the QFX5110 DC Power
Supply........................................................101
Figure 31: QFX5110 Virtual Chassis with all QFX5110 Members . . . . . . . . . . . . . . . 102
Figure 32: QFX5110 Virtual Chassis with QFX5110 and QFX5100 Members . . . . . 102
ixCopyright © 2019, Juniper Networks, Inc.

Figure33:AllQFX5110VCF...........................................103
Figure 34: QFX5110 VCF with QFX5100-24Q Leaf Devices . . . . . . . . . . . . . . . . . . 104
Chapter4 Maintaining Components .........................................107
Figure 35: Removing a Fan Module from a QFX5110 . . . . . . . . . . . . . . . . . . . . . . . 108
Figure 36: Installing a Fan Module in a QFX5110 . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Figure 37: Removing a Power Supply from a QFX5110 . . . . . . . . . . . . . . . . . . . . . . 111
Figure 38: Installing a Power Supply in a QFX5110-32Q with EMI Gasket . . . . . . . 112
Figure 39: Installing a Power Supply in a QFX5110-48S . . . . . . . . . . . . . . . . . . . . . 113
Figure 40: Removing an SFP, SFP+, XFP, or a QSFP+ Transceiver . . . . . . . . . . . . 115
Figure41:InstallingaTransceiver......................................118
Figure 42: Connecting a Fiber-Optic Cable to an Optical Transceiver Installed in
a Device ......................................................119
Chapter 6 Contacting Customer Support and Returning the Chassis or
Components .....................................................131
Figure 43: Location of the Serial Number ID Label on a QFX5110 . . . . . . . . . . . . . 133
Figure 44: Location of the AC Power Supply Serial Number ID Label on a
QFX5110......................................................134
Figure 45: Location of the Fan Module Serial Number ID Label on a
QFX5110-48S..................................................134
Chapter 7 Safety and Compliance Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Figure 46: Placing a Component into an Antistatic Bag . . . . . . . . . . . . . . . . . . . . 159
Copyright © 2019, Juniper Networks, Inc.x
QFX5110 Switch Hardware Guide

List of Tables
AbouttheDocumentation.........................................xiii
Table1:NoticeIcons.................................................xv
Table 2: Text and Syntax Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
Chapter1 Overview .........................................................19
Table 3: QFX5110 Hardware-only Product Numbers . . . . . . . . . . . . . . . . . . . . . . . 24
Table4:FRUsinaQFX5110...........................................26
Table 5: Default Behavior of 100 Gigabit Ethernet Ports . . . . . . . . . . . . . . . . . . . . . 31
Table 6: QFX5110-48 Access Port and Uplink LED Locations . . . . . . . . . . . . . . . . 33
Table 7: QFX5110-32Q Access Port and Uplink LED Locations . . . . . . . . . . . . . . . . 33
Table 8: Network Port LEDs on QSFP28 Ports on a QFX5110 . . . . . . . . . . . . . . . . . 33
Table 9: Management Port LEDs on a QFX5110 . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Table 10: Chassis Status LEDs on a QFX5110 Switch . . . . . . . . . . . . . . . . . . . . . . . 38
Table11:FanModulesintheQFX5110...................................41
Table 12: Fan Tray LED in a QFX5110 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Table 13: Airflow Direction in QFX5110 AC Power Supplies . . . . . . . . . . . . . . . . . . . 47
Table 14: AC Power Specifications for QFX5110 Models . . . . . . . . . . . . . . . . . . . . . 47
Table 15: AC Power Cord Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Table 16: AC Power Supply LEDs on a QFX5110 Switch . . . . . . . . . . . . . . . . . . . . . 49
Table 17: Airflow Direction in QFX5110 DC Power Supplies . . . . . . . . . . . . . . . . . . . 51
Table 18: DC Power Specifications for QFX5110 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Table 19: DC Power Supply LEDs on a QFX5110 Switch . . . . . . . . . . . . . . . . . . . . . 52
Chapter 2 Site Planning, Preparation, and Specifications . . . . . . . . . . . . . . . . . . . . . . . . 55
Table20:SitePreparationChecklist....................................55
Table 21: QFX5110 Environmental Tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Table 22: Site Electrical Wiring Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Table 23: Physical Specifications for the QFX5110 . . . . . . . . . . . . . . . . . . . . . . . . . 61
Table 24: Rack Requirements for the QFX5110 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Table25:DeploymentChecklist.......................................64
Table26:DeploymentChecklist.......................................68
Table 27: QSFP+ and QSFP28 Optical Module Receptacle Pinouts . . . . . . . . . . . 70
Table 28: QSFP+ MPO Fiber-Optic Crossover Cable Pinouts . . . . . . . . . . . . . . . . . 71
Table 29: Estimated Values for Factors Causing Link Loss . . . . . . . . . . . . . . . . . . . 74
Table 30: Cable Specifications for Console and Management Connections for
theQFXSeries..................................................76
Table 31: RJ-45 Management Port Connector Pinout Information . . . . . . . . . . . . . 76
Table 32: Console Port Connector Pinouts for the QFX Series . . . . . . . . . . . . . . . . 77
Table 33: 10/100/1000BASE-T Ethernet Network Port Connector Pinout
Information for EX4300 Switches Except EX4300-48MP and
EX4300-48MP-SSwitches.......................................78
xiCopyright © 2019, Juniper Networks, Inc.

Table 34: 10/100/1000BASE-T Ethernet Network Port and
100/1000/2500/5000/10000BASE-T Ethernet Network Port Connector
Pinout Information for EX4300-48MP and EX4300-48MP-S Switches . . . . 78
Table 35: SFP Network Port Connector Pinout Information . . . . . . . . . . . . . . . . . . 79
Table 36: SFP+ Network Port Connector Pinout Information . . . . . . . . . . . . . . . . 80
Table 37: QSFP+ and QSFP28 Network Port Connector Pinout Information . . . . . 81
Chapter 3 Initial Installation and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Table 38: Inventory of Components Supplied with a QFX5110 . . . . . . . . . . . . . . . 88
Chapter5 Troubleshooting Hardware ........................................125
Table39:ChassisAlarmMessages.....................................127
Copyright © 2019, Juniper Networks, Inc.xii
QFX5110 Switch Hardware Guide

About the Documentation
•Documentation and Release Notes on page xiii
•Using the Examples in This Manual on page xiii
•Documentation Conventions on page xv
•Documentation Feedback on page xvii
•Requesting Technical Support on page xvii
Documentation and Release Notes
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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
isasnippet. In this case, use the load merge relative command. These procedures are
described in the following sections.
xiiiCopyright © 2019, Juniper Networks, Inc.

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;
}
}
}
}
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; }
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QFX5110 Switch Hardware Guide

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]
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 xv defines notice icons used in this guide.
Table 1: Notice Icons
DescriptionMeaningIcon
Indicates important features or instructions.Informational note
Indicates a situation that might result in loss of data or hardware damage.Caution
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 xvi defines the text and syntax conventions used in this guide.
xvCopyright © 2019, Juniper Networks, Inc.
About the Documentation

Table 2: Text and Syntax Conventions
ExamplesDescriptionConvention
To enter configuration mode, type the
configure command:
user@host> configure
Represents text that you type.Bold text like this
user@host> show chassis alarms
No alarms currently active
Represents output that appears on the
terminal screen.
Fixed-width text like this
•A policy term is a named structure
that defines match conditions and
actions.
•Junos OS CLI User Guide
•RFC 1997, BGP Communities Attribute
•Introduces or emphasizes important
new terms.
•Identifies guide names.
•Identifies RFC and Internet draft titles.
Italic text like this
Configure the machine’s domain name:
[edit]
root@# set system domain-name
domain-name
Represents variables (options for which
you substitute a value) in commands or
configuration statements.
Italic text like this
•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.
Represents names of configuration
statements, commands, files, and
directories; configuration hierarchy levels;
or labels on routing platform
components.
Text like this
stub <default-metric metric>;Encloses optional keywords or variables.< > (angle brackets)
broadcast | multicast
(string1 |string2 |string3)
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.
| (pipe symbol)
rsvp { # Required for dynamic MPLS onlyIndicates a comment specified on the
same line as the configuration statement
to which it applies.
# (pound sign)
community name members [
community-ids ]
Encloses a variable for which you can
substitute one or more values.
[ ] (square brackets)
[edit]
routing-options {
static {
route default {
nexthop address;
retain;
}
}
}
Identifies a level in the configuration
hierarchy.
Indention and braces ( { } )
Identifies a leaf statement at a
configuration hierarchy level.
; (semicolon)
GUI Conventions
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QFX5110 Switch Hardware Guide

Table 2: Text and Syntax Conventions (continued)
ExamplesDescriptionConvention
•In the Logical Interfaces box, select
All Interfaces.
•To cancel the configuration, click
Cancel.
Represents graphical user interface (GUI)
items you click or select.
Bold text like this
In the configuration editor hierarchy,
select Protocols>Ospf.
Separates levels in a hierarchy of menu
selections.
>(bold right angle bracket)
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 [e-mail]. 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.
xviiCopyright © 2019, Juniper Networks, Inc.
About the Documentation

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/
•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/.
Copyright © 2019, Juniper Networks, Inc.xviii
QFX5110 Switch Hardware Guide

CHAPTER 1
Overview
•QFX5110 System Overview on page 19
•QFX5110 Port Panels on page 26
•QFX5110 Management Panel on page 34
•QFX5110 Cooling System on page 39
•QFX5110 Power System on page 45
QFX5110 System Overview
•QFX5110 Hardware Overview on page 19
•QFX5110 Hardware Models on page 24
•Understanding Hardware Redundancy of QFX5110 Components and
Functionality on page 25
•QFX5110 Field-Replaceable Units on page 25
QFX5110 Hardware Overview
The QFX5110 line of switches is Juniper Network’s versatile fixed-chassis solution for
hybrid cloud deployments. The small form-factor data center switches are designed for
either core or aggregation environments with high performance and low latency.
This topic covers:
•Benefits of QFX5110 on page 19
•QFX5110 Models Overview on page 20
•QFX5110-48S Hardware on page 22
•QFX5110-32Q Hardware on page 22
•System Software on page 23
Benefits of QFX5110
Flexible fabric support—QFX5110 offers multiple fabric options to fit your desired network
architecture:
19Copyright © 2019, Juniper Networks, Inc.

•Virtual Chassis (VC), with up to 10 members
•Virtual Chassis Fabric (VC), which offers a single pane management for up to 20
nodes
•MC-LAG, which provides dual-homing with reduced complexity related to STP
•Junos Fusion Datacenter, where QFX5110 can operate as a satellite leaf node for
1 Gigabit, 10 Gigabit, 40 Gigabit, or 100 Gigabit connectivity
Overlay options—QFX5110 provides L2 and L3 VXLAN gateway support that works in
conjunction with a robust EVPN control plane to efficiently manage your virtualized
workloads. Another option, OVSDB-VXLAN can be introduced to stitch virtualized
and physical workloads.
High density and low latency applications—Powered with high density 10 Gigabit or 40
Gigabit network ports and four 100G uplinks, the QFX5110 delivers 1.76 Tbps of
throughput and a low latency of 550 nS. Your legacy applications continue to be
supported by 100 Mbps or 1 Gigabit copper SFP transceivers.
QFX5110 Models Overview
The QFX5110 line of switches offers two compact 1 U models that are ideal for top-of-rack,
QFX Virtual Chassis, or Virtual Chassis Fabric (VCF) deployments, the 48-port
QFX5110-48S and the 32-port QFX5110-32Q. Performance of the control plane running
on all the QFX5110 switches is enhanced by the 1.8-Ghz quad-core Intel CPU with 16 GB
of memory and 64 GB of solid-state drive (SSD) storage. Both models offer flexible port
configurations of 1-Gigabit Ethernet, 10-Gigabit Ethernet, 40-Gigabit Ethernet, and
100-Gigabit Ethernet.
Both models can be ordered with either ports-to-FRUs or FRUs-to-ports airflow and with
AC or DC power supplies.
The QFX5110-32Q can be used as:
•A standalone switch (Junos OS Release 17.2R1 and later).
•A master, backup, or line card in a QFX5110 Virtual Chassis (Junos OS Release 17.3R1
and later).
A QFX5110 Series Virtual Chassis allows you to connect up to 10 QFX5110 or supported
QFX5100 switches into one logical device and manage the device as a single chassis
using a ring topology. The following QFX5100 switches are supported in a QFX5110
Virtual Chassis:
•QFX5100-24Q
•QFX5100-48S
•QFX5100-96S
For a QFX5100 switch to participate in a QFX5110 Virtual Chassis, the switch must have
the same software version and image installed as the software running on the QFX5110
switches in the Virtual Chassis. You do not need to configure mixed mode. In a QFX5110
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QFX5110 Switch Hardware Guide