Juniper QFX5110 Installation instructions

QFX5110 Switch Hardware Guide
Modified: 2017-08-28
Copyright © 2017, Juniper Networks, Inc.

Juniper Networks, Inc.
1133 Innovation Way
Sunnyvale, California 94089
USA
408-745-2000
www.juniper.net
Copyright © 2017 Juniper Networks, Inc. All rights reserved.
Juniper Networks, the Juniper Networks logo, Juniper, and Junos are registered trademarks of Juniper Networks, Inc. and/or its affiliates in
the United States and other countries. All other trademarks may be 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 © 2017 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
http://www.juniper.net/support/eula/. By downloading, installing or using such software, you agree to the terms and conditions of that
EULA.
Copyright © 2017, Juniper Networks, Inc.ii

Table of Contents
AbouttheDocumentation............................................xv
DocumentationandReleaseNotes.................................xv
SupportedPlatforms.............................................xv
Documentation Conventions ......................................xv
DocumentationFeedback........................................xvii
RequestingTechnicalSupport....................................xviii
Self-Help Online Tools and Resources . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
OpeningaCasewithJTAC....................................xviii
Part 1 Overview
Chapter1 SystemOverview...................................................3
QFX5110HardwareOverview...........................................3
QFX5110ModelsOverview.........................................3
QFX5110-48SHardware...........................................5
QFX5110-32QHardware...........................................5
System Software ................................................6
QFX5110HardwareModels............................................7
Understanding Hardware Redundancy of QFX5110 Components and
Functionality ....................................................8
Chapter 2 Chassis Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
QFX5110 Chassis Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
QFX5110-48SPortPanel..............................................9
SwitchOverview................................................10
SwitchPorts....................................................10
ChannelizingInterfaces...........................................11
Virtual Chassis and Virtual Chassis Fabric . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
QFX5110-32QPortPanel.............................................12
Switch Overview ................................................12
SwitchPorts....................................................13
ChannelizingInterfaces...........................................13
Virtual Chassis and Virtual Chassis Fabric . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
QFX5110Field-ReplaceableUnits......................................15
QFX5110 Access Port and Uplink Port LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
QFX5110ManagementPanel..........................................18
QFX5110ManagementPortLEDs......................................20
QFX5110ChassisStatusLEDs.........................................21
iiiCopyright © 2017, Juniper Networks, Inc.

Chapter3 CoolingSystemandAirflow........................................25
QFX5110CoolingSystemandAirflow...................................25
FanModules...................................................25
Do Not Install Components with Different Airflow or Wattage in the
Switch ....................................................29
QFX5110FanModuleLED............................................30
Chapter4 Power Supplies ...................................................33
QFX5110ACPowerSupply............................................33
QFX5110DCPowerSupply...........................................35
QFX5110ACPowerSupplyLEDs.......................................37
QFX5110DCPowerSupplyLEDs.......................................38
Part 2 Site Planning, Preparation, and Specifications
Chapter5 PreparationOverview..............................................43
QFX5110SitePreparationChecklist....................................43
QFX5110 Environmental Requirements and Specifications . . . . . . . . . . . . . . . . . . 44
GeneralSiteGuidelines..............................................45
SiteElectricalWiringGuidelines.......................................46
Virtual Chassis Fabric Hardware Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Planning a Virtual Chassis Deployment using QFX Devices . . . . . . . . . . . . . . . . . . 48
Valid Configurations for a QFX Virtual Chassis . . . . . . . . . . . . . . . . . . . . . . . . 48
Valid Configurations for a QFX5110 Virtual Chassis . . . . . . . . . . . . . . . . . . . . . 49
VCDeploymentChecklist.........................................49
Planning a Virtual Chassis Fabric Deployment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
QFX5110RackRequirements..........................................53
QFX5110 Clearance Requirements for Airflow and Hardware Maintenance . . . . . 55
Chapter 6 Power Specifications and Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
QFX5110ACPowerSpecifications......................................57
QFX5110 AC Power Cord Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
QFX5110DCPowerSpecifications.....................................59
Chapter 7 Transceiver and Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Determining Transceiver Support for the QFX5110 . . . . . . . . . . . . . . . . . . . . . . . . . 61
Cable Specifications for QSFP+ and QSFP28 Transceivers . . . . . . . . . . . . . . . . . . 62
Cable Specifications for Console and Management Connections for the QFX
Series.........................................................64
Understanding QFX Series Fiber-Optic Cable Signal Loss, Attenuation, and
Dispersion .....................................................64
Signal Loss in Multimode and Single-Mode Fiber-Optic Cables . . . . . . . . . . 64
Attenuation and Dispersion in Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . . 65
Calculating the Fiber-Optic Cable Power Budget for a QFX Series Device . . . . . . 66
Calculating the Fiber-Optic Cable Power Margin for a QFX Series Device . . . . . . 66
Chapter8 PinoutSpecifications..............................................69
USB Port Specifications for the QFX Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Console Port Connector Pinout Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
RJ-45 Management Port Connector Pinout Information . . . . . . . . . . . . . . . . . . . . . 71
Copyright © 2017, Juniper Networks, Inc.iv
QFX5110 Switch Hardware Guide

Part 3 Initial Installation and Configuration
Chapter 9 Unpacking and Mounting the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
InstallingandConnectingaQFX5110...................................75
UnpackingaQFX5110................................................76
MountingaQFX5110inaRack.........................................77
BeforeYouBeginRackInstallation..................................77
Procedure .....................................................78
Virtual Chassis Fabric Installation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Chapter 10 Connecting the Switch to Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Connecting Earth Ground to a QFX5110 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
ConnectingACPowertoaQFX5110....................................85
ConnectingDCPowertoaQFX5110....................................87
Chapter 11 Connecting the Switch to the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
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
Connecting QFX5110 and QFX5100 Members in a QFX5110 Virtual Chassis . . . . . 95
Connecting a QFX5110 Device in a QFX5110 Virtual Chassis Fabric . . . . . . . . . . . . 96
Chapter 12 Performing Initial Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
ConfiguringaQFX5110...............................................99
Part 4 Installing, Maintaining, and Replacing Components
Chapter 13 Replacing Cooling System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
InstallingaFanModuleinaQFX5110..................................105
Removing a Fan Module from a QFX5110 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Chapter14 ReplacingPowerSupplies.........................................109
Installing a Power Supply in a QFX5110 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Removing a Power Supply from a QFX5110 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Chapter 15 Replacing Transceivers and Fiber-Optic Cables . . . . . . . . . . . . . . . . . . . . . . . 113
Installing a Transceiver in a QFX Series Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
RemovingaTransceiver..............................................116
ConnectingaFiber-OpticCable.......................................119
Disconnecting a Fiber-Optic Cable from a Device . . . . . . . . . . . . . . . . . . . . . . . . . 120
MaintainingFiber-OpticCables........................................121
Chapter16 RemovingtheDevice..............................................123
Installing and Removing QFX5110 Hardware Components . . . . . . . . . . . . . . . . . . 123
PoweringOffaQFX5110.............................................124
RemovingaQFX5110fromaRack.....................................126
vCopyright © 2017, Juniper Networks, Inc.
Table of Contents

Chapter 17 Contacting Customer Support and Returning the Chassis or
Components.....................................................129
Returning a QFX5110 or Component for Repair or Replacement . . . . . . . . . . . . . 129
Locating the Serial Number on a QFX5110 Device or Component . . . . . . . . . . . . 130
Listing the Chassis and Component Details Using the CLI . . . . . . . . . . . . . . 130
Locating the Chassis Serial Number ID Label on a QFX5110 . . . . . . . . . . . . . 131
Locating the Serial Number ID Labels on FRU Components . . . . . . . . . . . . . 131
Contacting Customer Support to Obtain Return Material Authorization . . . . . . . 132
Packing an QFX5110 Device or Component for Shipping . . . . . . . . . . . . . . . . . . . 133
Packing a QFX5110 Switch for Shipping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Packing QFX5110 Components for Shipping . . . . . . . . . . . . . . . . . . . . . . . . . 134
Part 5 Troubleshooting
Chapter18 RestoringJunosOS...............................................139
CreatinganEmergencyBootDevice...................................139
PerformingaRecoveryInstallation.....................................141
Chapter19 Alarm Messages .................................................145
UnderstandingAlarms..............................................145
InterfaceAlarmMessages...........................................146
Chassis Alarm Messages on QFX5100, QFX5110, and QFX5200 Switches . . . . . 147
Part 6 Safety and Compliance Information
Chapter 20 General Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
General Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Definitions of Safety Warning Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
QualifiedPersonnelWarning.........................................156
Warning Statement for Norway and Sweden . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Chapter21 FireSafety Requirements.........................................159
FireSafetyRequirements............................................159
Chapter 22 Installation Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . 161
InstallationInstructionsWarning......................................161
QFX5110ChassisLiftingGuidelines....................................162
RestrictedAccessWarning...........................................162
RampWarning....................................................164
Rack-Mounting and Cabinet-Mounting Warnings . . . . . . . . . . . . . . . . . . . . . . . . 164
GroundedEquipmentWarning.......................................168
Chapter 23 Radiation and Laser Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . 171
Radiation from Open Port Apertures Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Laser and LED Safety Guidelines and Warnings for the QFX Series . . . . . . . . . . . 172
Class1MLaserProductWarning...................................172
Class1MLaserRadiationWarning..................................173
Unterminated Fiber-Optic Cable Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Copyright © 2017, Juniper Networks, Inc.vi
QFX5110 Switch Hardware Guide

Chapter 24 Maintenance and Operational Safety Warnings . . . . . . . . . . . . . . . . . . . . . . 175
Maintenance and Operational Safety Guidelines and Warnings . . . . . . . . . . . . . 175
BatteryHandlingWarning........................................175
JewelryRemovalWarning........................................176
LightningActivityWarning........................................177
OperatingTemperatureWarning...................................178
ProductDisposalWarning........................................179
Chapter 25 Electrical Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
General Electrical Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . 181
Prevention of Electrostatic Discharge Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Action to Take After an Electrical Accident . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
AC Power Electrical Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
ACPowerDisconnectionWarning.....................................185
DC Power Electrical Safety Guidelines for Switches . . . . . . . . . . . . . . . . . . . . . . . 186
DCPowerDisconnectionWarning.....................................189
DC Power Grounding Requirements and Warning . . . . . . . . . . . . . . . . . . . . . . . . 190
DCPowerWiringSequenceWarning...................................191
DC Power Wiring Terminations Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Multiple Power Supplies Disconnection Warning . . . . . . . . . . . . . . . . . . . . . . . . . 194
TNPowerWarning.................................................194
Chapter 26 Agency Approvals and Compliance Statements . . . . . . . . . . . . . . . . . . . . . . 197
AgencyApprovalsfortheQFXSeries...................................197
Compliance Statements for EMC Requirements for the QFX Series . . . . . . . . . . 198
Canada ......................................................198
EuropeanCommunity...........................................199
Israel ........................................................199
Japan ........................................................199
Korea ........................................................199
UnitedStates.................................................200
Nonregulatory Environmental Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
viiCopyright © 2017, Juniper Networks, Inc.
Table of Contents

Copyright © 2017, Juniper Networks, Inc.viii
QFX5110 Switch Hardware Guide

List of Figures
Part 1 Overview
Chapter1 SystemOverview...................................................3
Figure1:QFX5110-48SPortPanel.......................................5
Figure2:QFX5110-32QPortPanel.......................................6
Chapter 2 Chassis Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure3:QFX5110-48SPortPanel......................................10
Figure4:QFX5110-32QPortPanel......................................13
Figure5:QFX5110Switch,FRUEnd.....................................18
Figure 6: Management Panel Components on QFX5110 . . . . . . . . . . . . . . . . . . . . . 19
Figure 7: Management Port LEDs on a QFX5110 . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 8: Chassis Status LEDs on a QFX5110 Switch . . . . . . . . . . . . . . . . . . . . . . . . 21
Chapter3 CoolingSystemandAirflow........................................25
Figure9:QFX5110FanModule.........................................26
Figure 10: Air In Airflow Through the QFX5110-48S . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 11: Air Out Airflow Through the QFX5110-48S . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 12: Air In Airflow Through the QFX5110-32Q . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 13: Air Out Airflow Through the QFX5110-32Q . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 14: Fan Module LED in a QFX5110 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Chapter4 Power Supplies ...................................................33
Figure 15: AC Power Supply in QFX5110 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 16: Power Supply Handle Detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 17: DC Power Supply for the QFX5110 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 18: DC Power Supply Faceplate on a QFX5110 . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 19: AC Power Supply LEDs on a QFX5110 Switch . . . . . . . . . . . . . . . . . . . . . 37
Figure 20: DC Power Supply Faceplate on a QFX5110 Switch . . . . . . . . . . . . . . . . 38
Part 2 Site Planning, Preparation, and Specifications
Chapter5 PreparationOverview..............................................43
Figure 21: Clearance Requirements for Airflow and Hardware Maintenance for
aQFX5110.....................................................55
Part 3 Initial Installation and Configuration
Chapter 9 Unpacking and Mounting the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Figure 22: Attaching Mounting Rails to the QFX5110-48S . . . . . . . . . . . . . . . . . . . 79
Figure 23: Attaching Mounting Rails to the QFX5110-32Q . . . . . . . . . . . . . . . . . . . 79
Figure 24: Attaching a QFX5110-48S to a Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Figure 25: Attaching a QFX5110-32Q to a Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
ixCopyright © 2017, Juniper Networks, Inc.

Figure 26: Sliding the Mounting Blade into a Mounting Rail . . . . . . . . . . . . . . . . . 80
Chapter 10 Connecting the Switch to Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Figure 27: Connecting a Grounding Cable to a QFX5110 . . . . . . . . . . . . . . . . . . . . . 85
Figure 28: Connecting an AC Power Cord to an AC Power Supply in a
QFX5110.......................................................87
Figure 29: DC Power Supply Faceplate for a QFX5110 . . . . . . . . . . . . . . . . . . . . . . 90
Figure 30: Securing Ring Lugs to the Terminals on the QFX5110 DC Power
Supply ........................................................91
Chapter 11 Connecting the Switch to the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Figure 31: RJ-45 Connector on an Ethernet Cable . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Figure 32: Connecting a Device to a Network for Out-of-Band Management . . . . 94
Figure 33: RJ-45 Connector on an Ethernet Cable . . . . . . . . . . . . . . . . . . . . . . . . . 94
Figure 34: Connecting a Device to a Management Console Through a Console
Server ........................................................95
Figure 35: Connecting a Device Directly to a Management Console . . . . . . . . . . . 95
Figure 36: QFX5110 Virtual Chassis with all QFX5110 Members . . . . . . . . . . . . . . . 96
Figure 37: QFX5110 Virtual Chassis with QFX5110 and QFX5100 Members . . . . . 96
Figure38:AllQFX5110VCF...........................................97
Figure 39: QFX5110 VCF with QFX5100-24Q Leaf Devices . . . . . . . . . . . . . . . . . . 98
Part 4 Installing, Maintaining, and Replacing Components
Chapter 13 Replacing Cooling System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Figure 40: Installing a Fan Module in a QFX5110 . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Figure 41: Removing a Fan Module from a QFX5110 . . . . . . . . . . . . . . . . . . . . . . . 107
Chapter14 ReplacingPowerSupplies.........................................109
Figure 42: Installing a Power Supply in a QFX5110-32Q with EMI Gasket . . . . . . . 110
Figure 43: Installing a Power Supply in a QFX5110-48S . . . . . . . . . . . . . . . . . . . . . 110
Figure 44: Removing a Power Supply from a QFX5110 . . . . . . . . . . . . . . . . . . . . . . 112
Chapter 15 Replacing Transceivers and Fiber-Optic Cables . . . . . . . . . . . . . . . . . . . . . . . 113
Figure 45: Installing an SFP Transceiver in the QFX Series . . . . . . . . . . . . . . . . . . 114
Figure 46: Installing a QSFP+ Transceiver in the QFX Series—Vertical
Orientation ....................................................115
Figure 47: Installing a QSFP+ Transceiver in the QFX Series—Horizontal
Orientation ....................................................115
Figure 48: Installing a QSFP+ Transceiver in a QFX5100-48T . . . . . . . . . . . . . . . . 115
Figure 49: Installing a QSFP28 Transceiver in a QFX10002 . . . . . . . . . . . . . . . . . . 115
Figure 50: Removing an SFP, SFP+, XFP, or a QSFP+ Transceiver . . . . . . . . . . . . 118
Figure 51: Connecting a Fiber-Optic Cable to an Optical Transceiver Installed in
a Device ......................................................119
Chapter 17 Contacting Customer Support and Returning the Chassis or
Components.....................................................129
Figure 52: Location of the Serial Number ID Label on a QFX5110 . . . . . . . . . . . . . 131
Figure 53: Location of the AC Power Supply Serial Number ID Label on a
QFX5110 ......................................................132
Copyright © 2017, Juniper Networks, Inc.x
QFX5110 Switch Hardware Guide

Figure 54: Location of the Fan Module Serial Number ID Label on a
QFX5110-48S..................................................132
Part 6 Safety and Compliance Information
Chapter 25 Electrical Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Figure 55: Placing a Component into an Antistatic Bag . . . . . . . . . . . . . . . . . . . . 183
xiCopyright © 2017, Juniper Networks, Inc.
List of Figures

Copyright © 2017, Juniper Networks, Inc.xii
QFX5110 Switch Hardware Guide

List of Tables
AbouttheDocumentation..........................................xv
Table1:NoticeIcons.................................................xvi
Table 2: Text and Syntax Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
Part 1 Overview
Chapter1 SystemOverview...................................................3
Table 3: QFX5110 Hardware-only Product Numbers . . . . . . . . . . . . . . . . . . . . . . . . . 7
Chapter 2 Chassis Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 4: Physical Specifications for the QFX5110 . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 5: Default Behavior of 100 Gigabit Ethernet Ports . . . . . . . . . . . . . . . . . . . . . 14
Table6:FRUsinaQFX5110...........................................16
Table 7: QFX5110-48 Access Port and Uplink LED Locations . . . . . . . . . . . . . . . . . 17
Table 8: QFX5110-32Q Access Port and Uplink LED Locations . . . . . . . . . . . . . . . . 17
Table 9: Network Port LEDs on QSFP28 Ports on a QFX5110 . . . . . . . . . . . . . . . . . 17
Table 10: Management Port LEDs on a QFX5110 . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 11: Chassis Status LEDs on a QFX5110 Switch . . . . . . . . . . . . . . . . . . . . . . . . 22
Chapter3 CoolingSystemandAirflow........................................25
Table12:FanModulesintheQFX5110...................................26
Table 13: Fan Tray LED in a QFX5110 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Chapter4 Power Supplies ...................................................33
Table 14: Airflow Direction in QFX5110 AC Power Supplies . . . . . . . . . . . . . . . . . . . 35
Table 15: Airflow Direction in QFX5110 DC Power Supplies . . . . . . . . . . . . . . . . . . 36
Table 16: AC Power Supply LEDs on a QFX5110 Switch . . . . . . . . . . . . . . . . . . . . . 37
Table 17: DC Power Supply LEDs on a QFX5110 Switch . . . . . . . . . . . . . . . . . . . . . 38
Part 2 Site Planning, Preparation, and Specifications
Chapter5 PreparationOverview..............................................43
Table18:SitePreparationChecklist....................................43
Table 19: QFX5110 Environmental Tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Table 20: Site Electrical Wiring Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Table21:DeploymentChecklist........................................49
Table22:DeploymentChecklist........................................51
Table 23: Rack Requirements for the QFX5110 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Chapter 6 Power Specifications and Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Table 24: AC Power Specifications for QFX5110 Models . . . . . . . . . . . . . . . . . . . . . 57
Table 25: AC Power Cord Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
xiiiCopyright © 2017, Juniper Networks, Inc.

Table 26: DC Power Specifications for QFX5110 . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Chapter 7 Transceiver and Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Table 27: QSFP+ and QSFP28 Optical Module Receptacle Pinouts . . . . . . . . . . . 62
Table 28: QSFP+ MPO Fiber-Optic Crossover Cable Pinouts . . . . . . . . . . . . . . . . 63
Table 29: Cable Specifications for Console and Management Connections for
theQFXSeries.................................................64
Table 30: Estimated Values for Factors Causing Link Loss . . . . . . . . . . . . . . . . . . . 67
Chapter8 PinoutSpecifications..............................................69
Table 31: Console Port Connector Pinout Information . . . . . . . . . . . . . . . . . . . . . . 70
Table 32: RJ-45 Management Port Connector Pinout Information . . . . . . . . . . . . . 71
Part 3 Initial Installation and Configuration
Chapter 9 Unpacking and Mounting the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Table 33: Inventory of Components Supplied with a QFX5110 . . . . . . . . . . . . . . . . 76
Part 5 Troubleshooting
Chapter19 Alarm Messages .................................................145
Table 34: Alarm Terms and Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Table35:ChassisAlarmMessages....................................147
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About the Documentation
•Documentation and Release Notes on page xv
•Supported Platforms on page xv
•Documentation Conventions on page xv
•Documentation Feedback on page xvii
•Requesting Technical Support on page xviii
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
http://www.juniper.net/techpubs/.
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 http://www.juniper.net/books.
Supported Platforms
For the features described in this document, the following platforms are supported:
•QFX5110
Documentation Conventions
Table 1 on page xvi defines notice icons used in this guide.
xvCopyright © 2017, Juniper Networks, Inc.

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.
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
Copyright © 2017, Juniper Networks, Inc.xvi
QFX5110 Switch Hardware Guide

Table 2: Text and Syntax Conventions (continued)
ExamplesDescriptionConvention
•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
•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, comments, and suggestions so that we can
improve the documentation. You can provide feedback by using either of the following
methods:
•Online feedback rating system—On any page of the Juniper Networks TechLibrary site
at http://www.juniper.net/techpubs/index.html, simply click the stars to rate the content,
and use the pop-up form to provide us with information about your experience.
Alternately, you can use the online feedback form at
http://www.juniper.net/techpubs/feedback/.
xviiCopyright © 2017, Juniper Networks, Inc.
About the Documentation

•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 J-Care or Partner Support Service
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
http://www.juniper.net/us/en/local/pdf/resource-guides/7100059-en.pdf.
•Product warranties—For product warranty information, visit
http://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: http://www.juniper.net/customers/support/
•Search for known bugs: http://www2.juniper.net/kb/
•Find product documentation: http://www.juniper.net/techpubs/
•Find solutions and answer questions using our Knowledge Base: http://kb.juniper.net/
•Download the latest versions of software and review release notes:
http://www.juniper.net/customers/csc/software/
•Search technical bulletins for relevant hardware and software notifications:
http://kb.juniper.net/InfoCenter/
•Join and participate in the Juniper Networks Community Forum:
http://www.juniper.net/company/communities/
•Open a case online in the CSC Case Management tool: http://www.juniper.net/cm/
To verify service entitlement by product serial number, use our Serial Number Entitlement
(SNE) Tool: https://tools.juniper.net/SerialNumberEntitlementSearch/
Opening a Case with JTAC
You can open a case with JTAC on the Web or by telephone.
•Use the Case Management tool in the CSC at http://www.juniper.net/cm/.
•Call 1-888-314-JTAC (1-888-314-5822 toll-free in the USA, Canada, and Mexico).
Copyright © 2017, Juniper Networks, Inc.xviii
QFX5110 Switch Hardware Guide

For international or direct-dial options in countries without toll-free numbers, see
http://www.juniper.net/support/requesting-support.html.
xixCopyright © 2017, Juniper Networks, Inc.
About the Documentation

Copyright © 2017, Juniper Networks, Inc.xx
QFX5110 Switch Hardware Guide