Juniper QFX3600 Hardware Documentation

QFX3600 Device Hardware Documentation
Modified: 2017-10-05
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.
QFX3600 Device Hardware Documentation
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 OShas 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 tothe 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

About the Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Documentation and Release Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Supported Platforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Documentation Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Documentation Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
Requesting Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
Self-Help Online Tools and Resources . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
Opening a Case with JTAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
Part 1 Overview
Chapter 1 System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
QFX3600 Device Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Understanding Redundancy of QFX3600 and QFX3600-I Components and
Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Understanding QFX Series Virtual Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
QFX Virtual Chassis Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
QFX5110 Switches in a Virtual Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
QFX5100 Switches in a Virtual Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
QFX3500 and QFX3600 Switches in a Virtual Chassis . . . . . . . . . . . . . . . . . . 9
EX4300 Switches in a QFX Series Virtual Chassis . . . . . . . . . . . . . . . . . . . . . . 9
Understanding QFX Series Virtual Chassis Components . . . . . . . . . . . . . . . . . . . . 10
Virtual Chassis Ports (VCPs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Maximum Switch Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Master Routing Engine Role . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Backup Routing Engine Role . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Linecard Role . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Member Switch and Member ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Mastership Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Chapter 2 Chassis Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Chassis Physical Specifications for QFX3600 and QFX3600-I Devices . . . . . . . . 17
Field-Replaceable Units for QFX3600 and QFX3600-I Devices . . . . . . . . . . . . . . 18
Front Panel of a QFX3600 Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Rear Panel of QFX3600 and QFX3600-I Devices . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Access Port and Uplink Port LEDs on a QFX3600 or QFX3600-I Device . . . . . . . . 21
Chassis Status LEDs in the QFX3600 and QFX3600-I Device . . . . . . . . . . . . . . . 23
Management Port LEDs in the QFX3600 and QFX3600-I Device . . . . . . . . . . . . . 24
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QFX3600 Device HardwareDocumentation
Chapter 3 Cooling System and Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Cooling System and Airflow for QFX3600 and QFX3600-I Devices . . . . . . . . . . . 27
Fan Tray LED on a QFX3600 or QFX3600-I Device . . . . . . . . . . . . . . . . . . . . . . . . 30
Chapter 4 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
AC Power Supply for a QFX3500, QFX3600, or QFX3600-I Device . . . . . . . . . . . 33
DC Power Supply for a QFX3500, QFX3600, or QFX3600-I Device . . . . . . . . . . . 35
AC Power Supply LEDs on a QFX3500, QFX3600, or QFX3600-I Device . . . . . . . 37
DC Power Supply LEDs on a QFX3500, QFX3600, or QFX3600-I Device . . . . . . 38
Part 2 Site Planning, Preparation, and Specifications
Chapter 5 Preparation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Site Preparation Checklist for a QFX3600 or QFX3600-I Device . . . . . . . . . . . . . 43
Environmental Requirements and Specifications for QFX3600 and QFX3600-I
General Site Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Site Electrical Wiring Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Rack Requirements for a QFX3600 or QFX3600-I Device . . . . . . . . . . . . . . . . . . 46
Cabinet Requirements for a QFX3600 or QFX3600-I Device . . . . . . . . . . . . . . . . 48
Clearance Requirementsfor Airflow and Hardware Maintenancefor a QFX3600
Chapter 6 Power Specifications and Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
AC Power Specifications for a QFX3600 or QFX3600-I Device . . . . . . . . . . . . . . . 51
AC Power Cord Specifications for a QFX Series Device . . . . . . . . . . . . . . . . . . . . . 52
DC Power Specifications for a QFX3600 or QFX3600-I Device . . . . . . . . . . . . . . 53
Grounding Cable and Lug Specifications for QFX3600 and QFX3600-I
Chapter 7 Transceiver and Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Determining Interface Support for the QFX3600 Device . . . . . . . . . . . . . . . . . . . . 55
Cable Specifications for QSFP+ and QSFP28 Transceivers . . . . . . . . . . . . . . . . . . 56
Cable Specifications for Console and Management Connections for the QFX
Understanding QFX Series Fiber-Optic Cable Signal Loss, Attenuation, and
Calculating the Fiber-Optic Cable Power Budget for a QFX Series Device . . . . . . . 61
Calculating the Fiber-Optic Cable Power Margin for a QFX Series Device . . . . . . . 61
Chapter 8 Pinout Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
USB Port Specifications for the QFX Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Console Port Connector Pinouts for the QFX Series . . . . . . . . . . . . . . . . . . . . . . . 66
RJ-45 Management Port Connector Pinout Information . . . . . . . . . . . . . . . . . . . . 67
Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
or QFX3600-I Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Dispersion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Signal Loss in Multimode and Single-Mode Fiber-Optic Cables . . . . . . . . . . 59
Attenuation and Dispersion in Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . . 60
Copyright © 2017, Juniper Networks, Inc.iv
Table of Contents
Part 3 Initial Installation and Configuration
Chapter 9 Unpacking and Mounting the Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Installing and Connecting a QFX3600 or QFX3600-I Device . . . . . . . . . . . . . . . . . 71
Unpacking a QFX3600 or QFX3600-I Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Mounting a QFX3600 or QFX3600-I Device on Two Posts in a Rack or
Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Mounting a QFX3600 or QFX3600-I Device on Four Posts in a Rack or
Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Chapter 10 Connecting the QFX3600 Device to Power . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Connecting Earth Ground to QFX3600 or QFX3600-I Devices . . . . . . . . . . . . . . . 82
Connecting AC Power to a QFX3500, QFX3600, or QFX3600-I Device . . . . . . . . 83
Connecting DC Power to a QFX3500, QFX3600, or QFX3600-I Device . . . . . . . . 86
Chapter 11 Connecting the Device to the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Connecting a Device to a Network for Out-of-Band Management . . . . . . . . . . . . 91
Connecting a Device to a Management Console by Using an RJ-45
Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Connecting QFX Series and EX Series Switches in a QFX Virtual Chassis . . . . . . . 93
Before You Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Valid Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Cabling QFX3500 Switches in a QFX5100 Virtual Chassis . . . . . . . . . . . . . . . 95
Cabling QFX3600 Switches in a QFX Virtual Chassis . . . . . . . . . . . . . . . . . . . 97
Cabling a Mixed QFX Virtual Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Connecting a QFX3500 or QFX3600 Switch in a QFX5100 Virtual Chassis
Fabric . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Chapter 12 Performing Initial Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Configuring a QFX3600 Device as a Standalone Switch . . . . . . . . . . . . . . . . . . . 103
Adding a New Switch to an Existing QFX Series Virtual Chassis (CLI
Procedure) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Configuring a QFX Series Virtual Chassis (CLI Procedure) . . . . . . . . . . . . . . . . . . 107
Understanding the Licensing Requirements for a QFX Series Virtual
Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
ConfiguringaQFX SeriesVirtual Chassiswitha Preprovisioned Configuration
File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Configuringa QFX Series Virtual Chassis with a Nonprovisioned Configuration
File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Part 4 Installing, Maintaining, and Replacing Components
Chapter 13 Replacing Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Installing and Removing QFX3600 or QFX3600-I Device Hardware
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Installing a Fan Tray in a QFX3600 or QFX3600-I Device . . . . . . . . . . . . . . . . . . . 118
Removing a Fan Tray from a QFX3600 or QFX3600-I Device . . . . . . . . . . . . . . . 119
Installing a Power Supply in a QFX3600 or QFX3600-I Device . . . . . . . . . . . . . . 120
Removing a Power Supply from a QFX3600 or QFX3600-I Device . . . . . . . . . . . 122
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QFX3600 Device Hardware Documentation
Chapter 14 Replacing Transceivers and Fiber-Optic Cables . . . . . . . . . . . . . . . . . . . . . . 125
Installing a Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Removing a Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Connecting a Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Disconnecting a Fiber-Optic Cable from a Device . . . . . . . . . . . . . . . . . . . . . . . . . 131
Maintaining Fiber-Optic Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Configuring the Port Type on QFX3600 Standalone Switches . . . . . . . . . . . . . . . 133
Chapter 15 Removing the Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Powering Off a QFX3600 Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Adding or Replacing an Interconnect Device in a QFX3000-M QFabric
Adding or Replacing a Node Device in a QFabric Node Group . . . . . . . . . . . . . . . 142
Removing a QFX3600 or QFX3600-I Device from a Rack or Cabinet . . . . . . . . . 147
Chapter 16 Contacting Customer Support and Returning the Chassis or
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Returning a QFX3600 or QFX3600-I Device or Component for Repair or
Locating the Serial Number on a QFX3600 or QFX3600-I Device or
Packing a QFX3600 or QFX3600-I Device or Component for Shipping . . . . . . . . 151
Contacting Customer Support to Obtain a Return Materials Authorization for a
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Powering Off an Interconnect Device on a QFX3000-M QFabric System . . 138
Adding a New Interconnect Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Powering Off an Existing QFabric Node Device . . . . . . . . . . . . . . . . . . . . . . . 143
Adding a New Node Device to a Node Group in a QFabric System . . . . . . . . 145
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Component . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Listing the Chassis and Component Details Using the CLI . . . . . . . . . . . . . . 150
Locating the Chassis Serial Number ID Label on a QFX3600 or QFX3600-I
Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Locating the Serial Number ID Labels on FRU Components . . . . . . . . . . . . . 151
Packing a QFX3600 or QFX3600-I Device for Shipping . . . . . . . . . . . . . . . . 152
Packing QFX3600 or QFX3600-I Device Components for Shipping . . . . . . 153
QFX Series Device or Component . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Part 5 Troubleshooting
Chapter 17 Alarm Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Understanding Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Chassis Alarm Messages on a QFX3600 or QFX3600-I Device . . . . . . . . . . . . . . 158
Interface Alarm Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Chapter 18 Restoring Junos OS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Creating an Emergency Boot Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Performing a Recovery Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
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Table of Contents
Part 6 Safety and Compliance Information
Chapter 19 General Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
General Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Definitions of Safety Warning Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Qualified Personnel Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Warning Statement for Norway and Sweden . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Chapter 20 Fire Safety Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Fire Safety Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Chapter 21 Installation Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . 179
Installation Instructions Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Chassis Lifting Guidelines for a QFX3600 or QFX3600-I Device . . . . . . . . . . . . . 180
Restricted Access Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
Ramp Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Rack-Mounting and Cabinet-Mounting Warnings . . . . . . . . . . . . . . . . . . . . . . . . . 182
Grounded Equipment Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Chapter 22 Radiation and Laser Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Radiation from Open Port Apertures Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Laser and LED Safety Guidelines and Warnings for the QFX Series . . . . . . . . . . . 190
Class 1M Laser Product Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Class 1M Laser Radiation Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Unterminated Fiber-Optic Cable Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Chapter 23 Maintenance and Operational Safety Warnings . . . . . . . . . . . . . . . . . . . . . . 193
Maintenance and Operational Safety Guidelines and Warnings . . . . . . . . . . . . . 193
Battery Handling Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Jewelry Removal Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Lightning Activity Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Operating Temperature Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Product Disposal Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Chapter 24 Power and Electrical Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
General Electrical Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . 199
Prevention of Electrostatic Discharge Damage . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Action to Take After an Electrical Accident . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
AC Power Electrical Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
AC Power Disconnection Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
DC Power Electrical Safety Guidelines for Switches . . . . . . . . . . . . . . . . . . . . . . 204
DC Power Disconnection Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
DC Power Grounding Requirements and Warning . . . . . . . . . . . . . . . . . . . . . . . . 208
DC Power Wiring Sequence Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
DC Power Wiring Terminations Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Multiple Power Supplies Disconnection Warning . . . . . . . . . . . . . . . . . . . . . . . . . 212
TN Power Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
viiCopyright © 2017, Juniper Networks, Inc.
QFX3600 Device Hardware Documentation
Chapter 25 Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Agency Approvals for the QFX Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Compliance Statements for EMC Requirements for the QFX Series . . . . . . . . . . 216
Statements of Volatility for Juniper Network Devices . . . . . . . . . . . . . . . . . . . . . . 219
Canada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
European Community . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Israel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Japan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Korea . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Nonregulatory Environmental Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Copyright © 2017, Juniper Networks, Inc.viii

List of Figures

Part 1 Overview
Chapter 1 System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Figure 1: QFX3600 Chassis Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2: QFX3600 Chassis Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Chapter 2 Chassis Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 3: QFX3600 Device Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 4: QFX3600 and QFX3600-I Device Rear Panel . . . . . . . . . . . . . . . . . . . . . 21
Figure 5: LEDs on the QSFP+ Access and Uplink Ports . . . . . . . . . . . . . . . . . . . . . . 22
Figure 6: Chassis Status LEDs in the QFX3600 and QFX3600-I Device . . . . . . . . 23
Figure 7: LEDs on the Management Ports on a QFX3600 or QFX3600-I
Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Chapter 3 Cooling System and Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 8: Fan Tray for QFX3600 and QFX3600-I Devices . . . . . . . . . . . . . . . . . . . 27
Figure9: FRU-Side-to-Port-SideAirflow Through the QFX3600 and QFX3600-I
Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 10: Port-to-FRU Airflow Through the QFX3600 and QFX3600-I
Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 11: Label Identifying Airflow Direction on Power Supply Handle . . . . . . . . . 29
Figure 12: Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Chapter 4 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 13: AC Power Supply in QFX3500, QFX3600, or QFX3600-I Devices . . . . . 33
Figure 14: An Arrow Icon and AFI Label Identifying Airflow Direction on Power
Supply Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 15: A Fan Icon Identifying Airflow Direction on Power Supply Handle . . . . . 34
Figure 16: DC Power Supply for a QFX3500, QFX3600, or QFX3600-I Device . . . 35
Figure 17: DC Power Supply Faceplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 18: Label Identifying Airflow Direction on Power Supply Handle . . . . . . . . . 37
Figure 19: AC Power Supply LEDs on a QFX3500, QFX3600, or QFX3600-I
Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Figure 20: DC Power Supply Faceplateon a QFX3500, QFX3600, or QFX3600-I
Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Part 2 Site Planning, Preparation, and Specifications
Chapter 5 Preparation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 21: Clearance Requirements for Airflow and Hardware Maintenance for
a QFX3600 or QFX3600-I Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
ixCopyright © 2017, Juniper Networks, Inc.
QFX3600 Device Hardware Documentation
Part 3 Initial Installation and Configuration
Chapter 9 Unpacking and Mounting the Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Figure 22: Mounting the Device on Two Posts in a Rack . . . . . . . . . . . . . . . . . . . . . 75
Figure 23: Attaching the Installation Blades to the Rear of the Rack . . . . . . . . . . . 77
Figure 24: Mounting the Device on Four Posts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Chapter 10 Connecting the QFX3600 Device to Power . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Figure 25: Connecting a Grounding Cable to a QFX3600 or QFX3600-I
Figure 26: Connecting an AC Power Cord to an AC Power Supply in a QFX3500
Figure 27: Connecting an AC Power Cord to an AC Power Supply in a QFX3600
Figure 28: DC Power Supply Faceplate for a QFX3500, QFX3600 or QFX3600-I
Figure 29: Securing Ring Lugs to the Terminals on the QFX3500, QFX3600 or
Chapter 11 Connecting the Device to the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Figure 30: RJ-45 Connector on an Ethernet Cable . . . . . . . . . . . . . . . . . . . . . . . . . 91
Figure 31: Connecting a Device to a Network for Out-of-Band Management . . . . 92
Figure 32: RJ-45 Connector on an Ethernet Cable . . . . . . . . . . . . . . . . . . . . . . . . . 92
Figure 33: Connecting a Device to a Management Console Through a Console
Figure 34: Connecting a Device Directly to a Management Console . . . . . . . . . . . 93
Figure 35: QFX3500 Using the 40G Ports as the VCPs . . . . . . . . . . . . . . . . . . . . . 96
Figure 36: QFX3500 Using the 10G Ports as the VCPs . . . . . . . . . . . . . . . . . . . . . . 97
Figure 37: QFX3600 Using the 40G Ports as the VCPs . . . . . . . . . . . . . . . . . . . . . 98
Figure 38: QFX3500 and QFX3600 Mixed Using the 40G Ports as the VCPs . . . 98 Figure 39: QFX3500 and QFX3600 Mixed Using Both 40G Ports and 10G Ports
Figure 40: QFX5100 Master Connecting QFX3600 and QFX3500 Using 40G
Figure 41: Mixed Mode QFX5100 VCF with QFX3500 and QFX3600 Leaf
Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
or QFX3600-I Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
QFX3600-I DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
as the VCPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Ports as VCPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Part 4 Installing, Maintaining, and Replacing Components
Chapter 13 Replacing Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Figure 42: Installing a Fan Tray in a QFX3600 or QFX3600-I Device . . . . . . . . . . 119
Figure 43: Removing a Fan Tray from a QFX3600 or QFX3600-I Device . . . . . . . 120
Figure 44: Installing a Power Supply in a QFX3600 or QFX3600-I Device . . . . . . 121
Figure 45: Removing a Power Supply from a QFX3600 or QFX3600-I Device . . 123
Chapter 14 Replacing Transceivers and Fiber-Optic Cables . . . . . . . . . . . . . . . . . . . . . . 125
Figure 46: Installing a Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Figure 47: Removing an SFP, SFP+, XFP, or a QSFP+ Transceiver . . . . . . . . . . . . 129
Figure 48: Connecting a Fiber-Optic Cable to an Optical Transceiver Installed
in a Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Copyright © 2017, Juniper Networks, Inc.x
List of Figures
Chapter 16 Contacting Customer Support and Returning the Chassis or
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Figure 49: Location of the Serial Number ID Label on a QFX3600 or QFX3600-I
Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Part 6 Safety and Compliance Information
Chapter 24 Power and Electrical Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Figure 50: Placing a Component into an Antistatic Bag . . . . . . . . . . . . . . . . . . . . 201
xiCopyright © 2017, Juniper Networks, Inc.
QFX3600 Device Hardware Documentation
Copyright © 2017, Juniper Networks, Inc.xii

List of Tables

About the Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Table 1: Notice Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
Table 2: Text and Syntax Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
Part 1 Overview
Chapter 2 Chassis Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table 3: Chassis Physical Specifications for QFX3600 and QFX3600-I
Table 4: Field-Replaceable Units for QFX3600 and QFX3600-I Devices . . . . . . . 18
Table 5: Access Port LEDs on QSFP+ Ports on a QFX3600 Device . . . . . . . . . . . . 22
Table 6: Uplink Port LEDs on a QFX3600 or QFX3600-I Device . . . . . . . . . . . . . . 22
Table 7: Chassis Status LEDs in the QFX3600 and QFX3600-I Device . . . . . . . . . 23
Table 8: Management Port LEDs in a QFX3600 or QFX3600-I Device . . . . . . . . . 25
Chapter 3 Cooling System and Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Table 9: Airflow Direction in QFX3600 and QFX3600-I Device Models . . . . . . . . 28
Table 10: Airflow Direction in QFX3600 and QFX3600-I SKUs . . . . . . . . . . . . . . . 30
Table 11: Fan Tray LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Chapter 4 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Table 12: Airfow Direction in QFX3500, QFX3600, or QFX3600-I AC Power
Table 13: Airflow Direction in QFX3500, QFX3600, and QFX3600-I Device DC
Table 14: AC Power Supply LEDs on a QFX3500, QFX3600, or QFX3600-I
Table 15: DC Power Supply LEDs on a QFX3500, QFX3600, or QFX3600-I
Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Part 2 Site Planning, Preparation, and Specifications
Chapter 5 Preparation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Table 16: Site Preparation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Table 17: QFX3600 and QFX3600-I Device Environmental Tolerances . . . . . . . . 45
Table 18: Site Electrical Wiring Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Table 19: Rack Requirements for a QFX3600 or QFX3600-I Device . . . . . . . . . . . 47
Table 20: Cabinet Requirements for a QFX3600 or QFX3600-I Device . . . . . . . . 48
Chapter 6 Power Specifications and Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Table 21: AC Power Specifications for a QFX3600 or QFX3600-I Device . . . . . . . 51
Table 22: AC Power Cord Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
xiiiCopyright © 2017, Juniper Networks, Inc.
QFX3600 Device Hardware Documentation
Table 23: DC Power Specifications for a QFX3600 or QFX3600-I Device . . . . . . 53
Chapter 7 Transceiver and Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Table 24: QSFP+ and QSFP28 Optical Module Receptacle Pinouts . . . . . . . . . . . 57
Table 25: QSFP+ MPO Fiber-Optic Crossover Cable Pinouts . . . . . . . . . . . . . . . . . 57
Table 26: Cable Specifications for Console and Management Connections for
Table 27: Estimated Values for Factors Causing Link Loss . . . . . . . . . . . . . . . . . . . 62
Chapter 8 Pinout Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Table 28: Console Port Connector Pinouts for the QFX Series . . . . . . . . . . . . . . . 66
Table 29: RJ-45 Management Port Connector Pinout Information . . . . . . . . . . . . 67
Part 3 Initial Installation and Configuration
Chapter 9 Unpacking and Mounting the Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Table 30: Accessory Kit Part Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Part 5 Troubleshooting
the QFX Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Chapter 17 Alarm Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Table 31: Alarm Terms and Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Table 32: QFX3600 and QFX3600-I Chassis Alarm Messages . . . . . . . . . . . . . . 159
Copyright © 2017, Juniper Networks, Inc.xiv

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:
QFabric System
QFX Series

Documentation Conventions

Table 1 on page xvi defines notice icons used in this guide.
xvCopyright © 2017, Juniper Networks, Inc.
QFX3600 Device Hardware Documentation
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
Table 2 on page xvi defines the text and syntax conventions used in this guide.
Table 2: Text and Syntax Conventions
Represents text that you type.Bold text like this
Fixed-width text like this
Italic text like this
Italic 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.
Represents variables (options for which you substitute a value) in commands or configuration statements.
Alerts you to a recommended use or implementation.Best practice
ExamplesDescriptionConvention
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
Configure the machine’s domain name:
[edit] root@# set system domain-name
domain-name
Copyright © 2017, Juniper Networks, Inc.xvi
Table 2: Text and Syntax Conventions (continued)
Text like this
Represents names of configuration statements, commands, files, and directories;configurationhierarchylevels; or labels on routing platform components.
About the Documentation
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.
stub <default-metric metric>;Encloses optional keywords or variables.< > (angle brackets)
| (pipe symbol)
# (pound sign)
[ ] (square brackets)
Indention and braces ( { } )
; (semicolon)
GUI Conventions
Bold text like this
Indicatesa choice between the mutually exclusivekeywordsor variables on either side of the symbol. The set of choices is often enclosed in parentheses for clarity.
same line as the configurationstatement 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.
Representsgraphicaluser interface (GUI) items you click or select.
broadcast | multicast
(string1 | string2 | string3)
rsvp { # Required for dynamic MPLS onlyIndicates a comment specified on the
community name members [ community-ids ]
[edit] routing-options {
static {
route default {
nexthop address; retain;
}
}
}
In the Logical Interfaces box, select
All Interfaces.
To cancel the configuration, click
Cancel.
> (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 ratethe 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/.
Separates levels in a hierarchy of menu selections.
In the configuration editor hierarchy, select Protocols>Ospf.
xviiCopyright © 2017, Juniper Networks, Inc.
QFX3600 Device Hardware Documentation
E-mail—Sendyourcomments 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 availablethrough the Juniper NetworksTechnical 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:
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About the Documentation
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xixCopyright © 2017, Juniper Networks, Inc.
QFX3600 Device Hardware Documentation
Copyright © 2017, Juniper Networks, Inc.xx
PART 1
Overview
System Overview on page 3
Chassis Components and Descriptions on page 17
Cooling System and Airflow on page 27
Power Supplies on page 33
1Copyright © 2017, Juniper Networks, Inc.
QFX3600 Device Hardware Documentation
Copyright © 2017, Juniper Networks, Inc.2
CHAPTER 1
System Overview
QFX3600 Device Overview on page 3
Understanding Redundancy of QFX3600 and QFX3600-I Components and Functionality on page 6
Understanding QFX Series Virtual Chassis on page 6
Understanding QFX Series Virtual Chassis Components on page 10

QFX3600 Device Overview

The Juniper Networks QFX3600 device is a high-speed, multipurpose switch especially designed for next-generation data centers. The QFX3600 device can be configured as:
A standalone switch
A Node device in a QFX3000-M or QFX3000-G QFabric system
An Interconnect device in a QFX3000-M QFabric system
A member in a QFX Virtual Chassis
A leaf node in a QFX5100 Virtual Chassis Fabric (VCF)
Sixteen40-Gbps ports in the device use quad small form-factorpluggable plus (QSFP+) transceivers. The small form-factor and front facing ports in the switch make it suitable fordeployment in high-density serverracks and container-baseddata center deployments.
In a QFX3000-G QFabric system, the QFX3600 device can operate as a Node device through the 40-Gbps uplinks ports to a Juniper Networks QFX3008-I Interconnectdevice. On a QFX3000-M QFabric device, the QFX3600 can be configured to operate as either a Node device or as a QFX3600-I Interconnectdevice. When configured as a Node device in a QFX3000-M QFabric system, , the QFX3600 device can connect to either a QFX3600-I Interconnect device to a QFX5100-24Q through the 40-Gbps uplink ports.Together, the QFX3600 Node devices and Interconnect devices form a multistage, nonblocking switch fabric that provides a high-performance, low-latency, unified interconnect solution for next-generation data centers.
The QFX3600 Node devices and QFX3008-I or QFX3600-I Interconnect devices are connected to Juniper Networks QFX3100 Director devices in a control plane and managementnetwork. The QFX3100 Director device presents the QFabric system devices
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QFX3600 Device Hardware Documentation
as a single network entity, allowing for simplified management of your data center using the Junos OS command-line interface (CLI).
In a QFX Virtual Chassis, the QFX3600 device can participatewith other QFX3600 devices or QFX3500 devices in a ring topology with up to 10 members.
In a QFX5100 Virtual Chassis Fabric, the QFX3600 device can participate as a leafdevice. Up to a total of 32 devices can participate in the Virtual Chassis Fabric.
Software on page 4
Hardware on page 4
Software
QFX Series devices use the Junos operating system (OS), which provides Layer 2 and Layer 3 switching, routing, and security services. Junos OS is installed on the QFX3600 device’s 8-gigabyte (GB) internal flash drive. The same Junos OS code base that runs on QFX Series devices also runs on all Juniper Networks EX Series, J Series, M Series, MX Series, and T Series devices.
Hardware
For more information about which features are supported on QFX Series devices, see
Feature Explorer.
When the QFX3600 device is operating as a standalone switch, you manage the switch using the Junos OS command-line interface (CLI), accessible through the console and out-of-band management ports on the device.
When a QFX Series device operates as part of a QFabric system, all the devices in the data center fabric are managed through the Administrator software installed on the QFX3100 Director devices. Each device in a QFabric system is interconnected in a single control plane and management network, using the redundant management ports on each device.
The compact QFX3600 chassis is 1 rack unit (1 U) in size and designed to fit in industry-standard 19-inch rack-mount enclosures, as well as high-density server racks and container-based data center deployments. See Figure 1 on page 5 and
Figure 2 on page 5 and “Chassis Physical Specifications for QFX3600 and QFX3600-I Devices” on page 17.
Copyright © 2017, Juniper Networks, Inc.4
Figure 1: QFX3600 Chassis Front
g050200
3
4
5
6
2
1
2
1
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AC
!
DC
1
1
2
Chapter 1: System Overview
LCD panel
QSFP+ ports
4—1—
C0S 1-Gbps SFP management port
5—2—
C0 1000BASE-T RJ-45 management port
6—3—
C1 1000BASE-T RJ-45 management portC1S 1-Gbps SFP management port
Figure 2: QFX3600 Chassis Rear
2—1— Fan traysPower supplies
The front panel of the QFX3600 chassis has an LCD panel that displays the device hostname and the number of active alarms. It also has sixteen 40-Gbps ports labeled
Q0 through Q15 thatsupport quad small form-factorpluggableplus (QSFP+) transceivers.
See “Front Panel of a QFX3600 Device” on page 19.
If you are using the QFX3600 device as a Node device in a QFabric system, by default, four ports (labeled Q0 through C3) are configured for uplink connections between your QFX3600 Node device and your Interconnect device, and twelve ports (labeled Q4 through Q15) support 48 10-Gigabit Ethernet or 12 40-Gigabit Ethernet interfaces for connectionsto either endpoint systems(such as servers and storagedevices)or external networks.Optionally,you can choose to configure the first eight ports (labeled Q0 through
Q7) for uplink connections between your QFX3600 Node device and your Interconnect
device and ports Q2 through Q15 for 10-Gigabit Ethernet or 40-Gigabit Ethernet connections to either endpoint systems or external networks. See Configuring the Port Type on QFX3600 Node Devices and “Determining Interface Support for the QFX3600
Device” on page 55.
If you are using the QFX3600 device as a standalone switch, by default, all 16 QSFP+ ports (Q0 through Q15) are configured as 40-Gigabit Ethernet (xle) ports. Optionally, you can choose to configure each port to operate as 10-Gigabit Ethernet (xe) ports. Port
00 is unique because the number of ports you can specify as 10-Gigabit Ethernet varies
by Junos OS release. In some Junos OS releases, port 00 has a reserved port and in other
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QFX3600 Device Hardware Documentation
releases, the port is available. See the topics on channelizing interfaces or configuring the port type for your specific software release.
The rear panel of the QFX3600 chassis has two redundant power supplies and three redundant fan trays that are field-replaceable and hot-swappable. See “Rear Panel of
QFX3600 and QFX3600-I Devices” on page 21.
Related
Documentation
Field-Replaceable Units for QFX3600 and QFX3600-I Devices on page 18
Site Preparation Checklist for a QFX3600 or QFX3600-I Device on page 43
Installing and Removing QFX3600 or QFX3600-I Device Hardware Components on
page 117

Understanding Redundancy of QFX3600 and QFX3600-I Components and Functionality

The following hardware components provide redundancy on QFX3600 and QFX3600-I devices:
Power supplies—QFX3600 and QFX3600-I devices have two power supplies. Each power supply provides power to all components in the device. The two power supplies provide full power redundancy to the device. If one power supply fails or is removed, the second power supply balances the electrical load without interruption.
To provide power redundancy to the system both power supplies must be installed. Connect power source feed A to one power supply and power source feed B to the second power supply.
CAUTION: Do not connect feed A and feed B to the same power supply
input terminal.
Cooling system—QFX3600and QFX3600-I devices havethree fan trays.If a fan module on a fan tray fails and is unable to keep the QFX3600 device within the desired temperature thresholds, chassis alarms occur and the device may shut down.
Related
Documentation
AC Power Supply for a QFX3500, QFX3600, or QFX3600-I Device on page 33
DC Power Supply for a QFX3500, QFX3600, or QFX3600-I Device on page 35
Cooling System and Airflow for QFX3600 and QFX3600-I Devices on page 27

Understanding QFX Series Virtual Chassis

This topic discusses QFX Series Virtual Chassis. A QFX Series Virtual Chassis is a supported combination of interconnected QFX3500, QFX3600, QFX5100, QFX5110, and EX4300 switches operating as one logical device and managed as a single chassis. Switches in a Virtual Chassis are called members of the Virtual Chassis.
Copyright © 2017, Juniper Networks, Inc.6
This topic does not discuss Virtual Chassis Fabric (VCF). For informationon understanding VCF, see Virtual Chassis Fabric Overview.
This topic includes:
QFX Virtual Chassis Overview on page 7
QFX5110 Switches in a Virtual Chassis on page 8
QFX5100 Switches in a Virtual Chassis on page 8
QFX3500 and QFX3600 Switches in a Virtual Chassis on page 9
EX4300 Switches in a QFX Series Virtual Chassis on page 9
QFX Virtual Chassis Overview
A QFX Series Virtual Chassis is a flexible, scaling switch solution for supported combinationsof QFX3500, QFX3600,QFX5100,and QFX5110 switches. EX4300 switches can also be included in some configurations of a QFX Series Virtual Chassis..
In a QFX Series Virtual Chassis, you can interconnect up to ten standalone switches in the following combinations into one logical device, and manage the logical device as a single chassis:
Chapter 1: System Overview
QFX5110 switches or a combination of QFX5110 and QFX5100 switches (a non-mixed Virtual Chassis)
QFX5100 switches (a non-mixed Virtual Chassis)
QFX5100 switches with any combinationof QFX3500, QFX3600,or EX4300 switches (a mixed mode Virtual Chassis)
QFX3500switches or QFX3600 switches, or a combination of QFX3500 and QFX3600 switches (a non-mixed Virtual Chassis)
QFX3500 or QFX3600 switches with EX4300 switches, or a combination of all three types of switches (a mixed mode Virtual Chassis)
The advantages of connecting multiple switches into a Virtual Chassis include better-managed bandwidth at a networklayer, simplified configurationand maintenance because multiple devices can be managed as a single device, increased fault tolerance and high availability(HA) because a Virtual Chassis can remain active and network traffic can be redirected to other member switches when a single member switch fails, and a flatter, simplified Layer 2 network topology that minimizes or eliminates the need for loop prevention protocols such as Spanning Tree Protocol (STP).
You set up a Virtual Chassis by configuring Virtual Chassis ports (VCPs) on the member switches, and interconnecting the switches using the VCPs . VCPs are responsible for passing all data and control traffic between member switches in theVirtual Chassis. The following ports on QFX Series switches that support Virtual Chassis can be configured into VCPs to form a QFX Series Virtual Chassis:
Any 100-Gbps or 40-Gbps QSFP28 ports on QFX5110 switches
Any non-channelized 40-Gbps QSFP+ ports on QFX3500, QFX3600, QFX5100, or QFX5110 switches
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QFX3600 Device Hardware Documentation
Any fixed 10-Gbps SFP+ ports on QFX Series switches with these ports
See EX4300 Switches Hardware Overview for details on the ports on an EX4300 switch that can be configured into VCPs in a QFX Series Virtual Chassis.
You can increase VCP bandwidth between member switches by configuring multiple interfaces between the same two switches into VCPs. When multiple VCPs interconnect the same two member switches, a Link Aggregation Group (LAG) or bundle is automatically formed when the VCPs are on interfaces supporting identical speeds. For example, if you have two 40-Gbps QSFP+ interfaces configured as VCPs between member switches, a LAG with two member links with 80Gbps of total bandwidth is formed. However, 10-Gbps SFP+ and 40-Gbps QSFP+ interfaces configured as VCPs will not become members of the same VCP LAG.
QFX5110 Switches in a Virtual Chassis
Starting in Junos OS Release 17.3R1, Virtual Chassis is supported on QFX5110 switches.
You can interconnect up to ten QFX5110 switches or a combination of QFX5110 and QFX5100 switches intoa QFX5110 Virtual Chassis. All switches can run the same software image, and you do not need to configure mixed mode.
The following QFX5110 and QFX5100 switches are supported in a QFX5110 Virtual Chassis:
QFX5110-32Q
QFX5110-48S
QFX5100-24Q
QFX5100-48S
QFX5100-96S
QFX5100 Switches in a Virtual Chassis
Starting in Junos OS Release 13.2X51-D20, Virtual Chassis is supported on QFX5100 switches.You can interconnect up to ten switches into a QFX5100 Virtual Chassis that can include any combination of QFX5100, QFX3500, QFX3600, and EX4300 switches.
NOTE: In Junos OS release13.2X51-D20, you can interconnect only up to four
QFX5100-96S switches in a non-mixed QFX5100 Virtual Chassis. Starting in Junos OS release 13.2X51-D25, you can configure up to ten QFX5100-96S switches into a mixed or non-mixed QFX Series Virtual Chassis.
The following QFX5100 switches are supported in a non-mixed QFX5100 Virtual Chassis or a mixed QFX5100 Virtual Chassis (QFX5100 switches with QFX3500, QFX3600, or EX4300 switches):
QFX5100-24Q
QFX5100-48S
Copyright © 2017, Juniper Networks, Inc.8
Chapter 1: System Overview
QFX5100-48T
QFX5100-96S
NOTE: QFX5100-24Q switches should be configured as the Routing Engine
role members in a mixed QFX5100 Virtual Chassis.
QFX5100 switches can also be part of a QFX5110 Virtual Chassis, which can include a combination of up to ten QFX5110 and QFX5100 switches. For a QFX5100 switch to participatein a QFX5110 Virtual Chassis, the switchmust 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 Virtual Chassis, we recommend to use QFX5110 switches in the master and backup Routing Engine roles, and QFX5100 switches only in the linecard role.
The following QFX5100 switches are supported in a QFX5110 Virtual Chassis:
QFX5100-24Q
QFX5100-48S
QFX5100-96S
CAUTION: A QFX5100 switch running a Junos OS software image with
“-qfx-5-” in the package filename must first be upgraded to a Junos OS software image with “-qfx-5e-” in the package filename before it can be added to a QFX5110 Virtual Chassis or VCF. See Upgrading a QFX5100 Switch with a USB Device to Join a QFX5110 Virtual Chassis or Virtual Chassis Fabric.
QFX3500 and QFX3600 Switches in a Virtual Chassis
Virtual Chassis is supported on QFX3500 and QFX3600 series switches. To be included in a Virtual Chassis, QFX3500 and QFX3600 series switches must be configured as standalone switches and not as QFX node devices in a QFabric system.
QFX3500 and QFX3600 devices must be running a version of Junos OS for QFX devices that supports Virtual Chassis,and can be in a Virtual Chassiswith up to ten total members including QFX3500 or QFX3600 switches only, or any combination of QFX3500, QFX3600, QFX5100, and EX4300 switches.
EX4300 Switches in a QFX Series Virtual Chassis
Virtual Chassis is supported on EX4300 switches. Starting in Junos OS Release
13.2X51-D20, EX4300 switches can be interconnected into a QFX Series Virtual Chassis with QFX3500 switches, QFX3600 switches, and QFX5100 switches.
A mixed or non-mixed QFX Series Virtual Chassis that includes EX4300 switches can contain up to ten total member switches including any combination of QFX3500, QFX3600, and QFX5100 switches with EX4300 switches.
9Copyright © 2017, Juniper Networks, Inc.
QFX3600 Device Hardware Documentation
Release History Table DescriptionRelease
Starting in Junos OS Release 17.3R1, Virtual Chassis is supported on QFX5110 switches.
Starting in Junos OS release 13.2X51-D25, you can configure up to ten QFX5100-96S switches into a mixed or non-mixed QFX Series Virtual Chassis.
Starting in Junos OS Release 13.2X51-D20, Virtual Chassis is supported on QFX5100 switches.
In Junos OS release 13.2X51-D20, you can interconnect only up to four QFX5100-96S switches in a non-mixed QFX5100 Virtual Chassis.
Starting in Junos OS Release 13.2X51-D20, EX4300 switches can be interconnected into a QFX Series Virtual Chassis with QFX3500 switches, QFX3600 switches, and QFX5100 switches.
Related
Documentation
17.3R1
13.2X53-D25
13.2X51-D20
13.2X51-D20
13.2X51-D20
Understanding QFX Series Virtual Chassis Components on page 10
Configuring a QFX Series Virtual Chassis (CLI Procedure) on page 107

Understanding QFX Series Virtual Chassis Components

This topic describes the components of a QFX Series Virtual Chassis. A QFX Series Virtual Chassis is a supported combination of up to ten standalone QFX3500, QFX3600, QFX5100,or QFX5110switches interconnectedand managedas a single chassis.(EX4300 switches can also be interconnected into a mixed Virtual Chassis with QFX3500, QFX3600, and QFX5100 switches.)
This topic does not discuss Virtual Chassis Fabric components. For informationon Virtual Chassis Fabric components, see Understanding Virtual Chassis Fabric Components.
This topic covers:
Virtual Chassis Ports (VCPs) on page 11
Maximum Switch Support on page 11
Master Routing Engine Role on page 12
Backup Routing Engine Role on page 12
Linecard Role on page 13
Member Switch and Member ID on page 14
Mastership Priority on page 14
Copyright © 2017, Juniper Networks, Inc.10
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