Juniper QFX3500 Hardware Manual
QFX3500 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.
QFX3500 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
QFX3500 Device Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
SFP+ Access Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
QSFP+ Uplink Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Understanding Redundancy of QFX3500 Device Components and
Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Understanding QFX Series Virtual Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
QFX Virtual Chassis Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
QFX5110 Switches in a Virtual Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
QFX5100 Switches in a Virtual Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
QFX3500 and QFX3600 Switches in a Virtual Chassis . . . . . . . . . . . . . . . . . . 11
EX4300 Switches in a QFX Series Virtual Chassis . . . . . . . . . . . . . . . . . . . . . . 11
Understanding QFX Series Virtual Chassis Components . . . . . . . . . . . . . . . . . . . . . 11
Virtual Chassis Ports (VCPs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Maximum Switch Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Master Routing Engine Role . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Backup Routing Engine Role . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Linecard Role . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Member Switch and Member ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Mastership Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Chapter 2 Chassis Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Chassis Physical Specifications for a QFX3500 Chassis . . . . . . . . . . . . . . . . . . . . . 17
Field-Replaceable Units in a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Front Panel of a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Rear Panel of a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Access Port and Uplink Port LEDs on a QFX3500 Device . . . . . . . . . . . . . . . . . . . . 21
Chassis Status LEDs on a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
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QFX3500 Device Hardware Documentation
Management Board for a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Management Port LEDs on a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Chapter 3 Cooling System and Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Cooling System and Airflow for a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . 29
Fan Tray LED on a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Chapter 4 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
AC Power Supply for a QFX3500, QFX3600, or QFX3600-I Device . . . . . . . . . . . 35
DC Power Supply for a QFX3500, QFX3600, or QFX3600-I Device . . . . . . . . . . . 37
AC Power Supply LEDs on a QFX3500, QFX3600, or QFX3600-I Device . . . . . . 39
DC Power Supply LEDs on a QFX3500, QFX3600, or QFX3600-I Device . . . . . . 40
Part 2 Site Planning, Preparation, and Specifications
Chapter 5 Preparation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Site Preparation Checklist for a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . 45
Environmental Requirements and Specifications for a QFX3500 Device . . . . . . . 46
General Site Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Site Electrical Wiring Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Planning a Virtual Chassis Fabric Deployment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Rack Requirements for a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Cabinet Requirements for a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Clearance Requirementsfor Airflow and Hardware Maintenance foraQFX3500
Chapter 6 Power Specifications and Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
AC Power Specifications for a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . . 55
AC Power Cord Specifications for a QFX Series Device . . . . . . . . . . . . . . . . . . . . . 56
DC Power Specifications for a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Grounding Cable and Lug Specifications for a QFX3500 Device . . . . . . . . . . . . . . 57
Chapter 7 Transceiver and Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Determining Interface Support for the QFX3500 Device . . . . . . . . . . . . . . . . . . . . 59
Cable Specifications for QSFP+ and QSFP28 Transceivers . . . . . . . . . . . . . . . . . 60
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 . . . . . . 65
Calculating the Fiber-Optic Cable Power Margin for a QFX Series Device . . . . . . 65
Chapter 8 Pinout Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
USB Port Specifications for the QFX Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Console Port Connector Pinout Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
RJ-45 Management Port Connector Pinout Information . . . . . . . . . . . . . . . . . . . . . 71
Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Dispersion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Signal Loss in Multimode and Single-Mode Fiber-Optic Cables . . . . . . . . . . 63
Attenuation and Dispersion in Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . . 64
Copyright © 2017, Juniper Networks, Inc.iv
Table of Contents
Part 3 Initial Installation and Configuration
Chapter 9 Unpacking and Mounting the Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Installing and Connecting a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Unpacking a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Mounting a QFX3500 Device in a Rack or Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . 77
Before You Begin Rack Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Two Mounting Rails Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Four Mounting Rails Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Chapter 10 Connecting the QFX3500 Device to Power . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Connecting Earth Ground to a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Connecting AC Power to a QFX3500, QFX3600, or QFX3600-I Device . . . . . . . . 85
Connecting DC Power to a QFX3500, QFX3600, or QFX3600-I Device . . . . . . . . 88
Chapter 11 Connecting the Device 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 QFX Series and EX Series Switches in a QFX Virtual Chassis . . . . . . . 95
Before You Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Valid Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Cabling QFX3500 Switches in a QFX5100 Virtual Chassis . . . . . . . . . . . . . . . 97
Cabling QFX3600 Switches in a QFX Virtual Chassis . . . . . . . . . . . . . . . . . . . 99
Cabling a Mixed QFX Virtual Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Connecting a QFX3500 or QFX3600 Switch in a QFX5100 Virtual Chassis
Fabric . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Chapter 12 Performing Initial Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Configuring a QFX3500 Device as a Standalone Switch . . . . . . . . . . . . . . . . . . . 105
Adding a New Switch to an Existing QFX Series Virtual Chassis (CLI
Procedure) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Configuring a QFX Series Virtual Chassis (CLI Procedure) . . . . . . . . . . . . . . . . . . 109
Understanding the Licensing Requirements for a QFX Series Virtual
Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
ConfiguringaQFX SeriesVirtual Chassiswitha Preprovisioned Configuration
File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Configuringa QFX Series Virtual Chassis with a Nonprovisioned Configuration
File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Part 4 Installing, Maintaining, and Replacing Components
Chapter 13 Replacing Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Installing and Removing QFX3500 Device Hardware Components . . . . . . . . . . . 121
Installing a Fan Tray in a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Removing a Fan Tray from a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Installing a Power Supply in a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Removing a Power Supply from a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . 127
Installing a Management Board in a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . 128
Removing a Management Board from a QFX3500 Device . . . . . . . . . . . . . . . . . . 130
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QFX3500 Device Hardware Documentation
Chapter 14 Replacing Transceivers and Fiber-Optic Cables . . . . . . . . . . . . . . . . . . . . . . 133
Installing a Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Removing a Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Connecting a Fiber-Optic Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Disconnecting a Fiber-Optic Cable from a Device . . . . . . . . . . . . . . . . . . . . . . . . . 139
Maintaining Fiber-Optic Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Chapter 15 Removing the Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Powering Off a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Removing a QFX3500 Device from a Rack or Cabinet . . . . . . . . . . . . . . . . . . . . . 145
Chapter 16 Contacting Customer Support and Returning the Chassis or
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Returning a QFX3500 Device or Component for Repair or Replacement . . . . . . 147
Locating the Serial Number on a QFX3500 Device or Component . . . . . . . . . . . 148
Packing a QFX3500 Device or Component for Shipping . . . . . . . . . . . . . . . . . . . 149
Contacting Customer Support to Obtain a Return Materials Authorization for a
Listing the Chassis and Component Details Using the CLI . . . . . . . . . . . . . . 148
Locating the Chassis Serial Number ID Label on a QFX3500 Device . . . . . . 149
Locating the Serial Number ID Labels on FRU Components . . . . . . . . . . . . . 149
Packing a QFX3500 Device for Shipping . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Packing QFX3500 Device Components for Shipping . . . . . . . . . . . . . . . . . . . 151
QFX Series Device or Component . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Part 5 Troubleshooting
Chapter 17 Alarm Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Understanding Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Chassis Alarm Messages on a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Interface Alarm Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Chapter 18 Restoring Junos OS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Creating an Emergency Boot Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Performing a Recovery Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Part 6 Safety and Compliance Information
Chapter 19 General Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
General Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Definitions of Safety Warning Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Qualified Personnel Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Warning Statement for Norway and Sweden . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Chapter 20 Fire Safety Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Fire Safety Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Chapter 21 Installation and Maintenance Safety Information . . . . . . . . . . . . . . . . . . . . . 177
Installation Instructions Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Chassis Lifting Guidelines for a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . 178
Restricted Access Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Ramp Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
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Table of Contents
Rack-Mounting and Cabinet-Mounting Warnings . . . . . . . . . . . . . . . . . . . . . . . . 180
Grounded Equipment Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
Chapter 22 Radiation and Laser Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Radiation from Open Port Apertures Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Laser and LED Safety Guidelines and Warnings for the QFX Series . . . . . . . . . . . 188
Class 1M Laser Product Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Class 1M Laser Radiation Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Unterminated Fiber-Optic Cable Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Chapter 23 Maintenance and Operational Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . 191
Maintenance and Operational Safety Guidelines and Warnings . . . . . . . . . . . . . . 191
Battery Handling Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Jewelry Removal Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Lightning Activity Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Operating Temperature Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Product Disposal Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Chapter 24 Power and Electrical Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
General Electrical Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . 197
Prevention of Electrostatic Discharge Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Action to Take After an Electrical Accident . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
AC Power Electrical Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
AC Power Disconnection Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
DC Power Electrical Safety Guidelines for Switches . . . . . . . . . . . . . . . . . . . . . . 202
DC Power Disconnection Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
DC Power Grounding Requirements and Warning . . . . . . . . . . . . . . . . . . . . . . . . 206
DC Power Wiring Sequence Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
DC Power Wiring Terminations Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Multiple Power Supplies Disconnection Warning . . . . . . . . . . . . . . . . . . . . . . . . . 210
TN Power Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Chapter 25 Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
Agency Approvals for the QFX Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
Compliance Statements for EMC Requirements for the QFX Series . . . . . . . . . . 214
Canada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
European Community . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Israel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Japan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Korea . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Nonregulatory Environmental Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Statements of Volatility for Juniper Network Devices . . . . . . . . . . . . . . . . . . . . . . 217
viiCopyright © 2017, Juniper Networks, Inc.
QFX3500 Device Hardware Documentation
Copyright © 2017, Juniper Networks, Inc.viii
List of Figures
Part 1 Overview
Chapter 1 System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Figure 1: QFX3500 Device Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2: QFX3500 Device Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 3: SFP+ Access Port Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 4: QSFP+ Uplink Port Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Chapter 2 Chassis Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 5: QFX3500 Device Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 6: QFX3500 Device Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 7: QFX3500 Device Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 8: LEDs on the SFP+ Access Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 9: LEDs on the QSFP+ Uplink Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 10: Chassis Status LEDs on a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . 23
Figure 11: Management Board for a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 12: Management Port LEDs on a QFX3500 Device . . . . . . . . . . . . . . . . . . . 27
Chapter 3 Cooling System and Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 13: Fan Tray for a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 14: Management Board for a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . 29
Figure 15: FRU-to-Port Airflow Through the QFX3500 Chassis . . . . . . . . . . . . . . . 30
Figure 16: Port-to-FRU Airflow Through the QFX3500 Chassis . . . . . . . . . . . . . . . 31
Figure 17: Label Identifying Airflow Direction on Power Supply Handle . . . . . . . . . 31
Figure 18: Fan Tray LED in a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Chapter 4 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 19: AC Power Supply in QFX3500, QFX3600, or QFX3600-I Devices . . . . 35
Figure 20: An Arrow Icon and AFI Label Identifying Airflow Direction on Power
Supply Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 21: A Fan Icon Identifying Airflow Direction on Power Supply Handle . . . . . 36
Figure 22: DC Power Supply for a QFX3500, QFX3600, or QFX3600-I Device . . . 37
Figure 23: DC Power Supply Faceplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Figure 24: Label Identifying Airflow Direction on Power Supply Handle . . . . . . . . 39
Figure 25: AC Power Supply LEDs on a QFX3500, QFX3600, or QFX3600-I
Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 26: DC Power Supply Faceplate on a QFX3500, QFX3600, or QFX3600-I
Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Part 2 Site Planning, Preparation, and Specifications
Chapter 5 Preparation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
ixCopyright © 2017, Juniper Networks, Inc.
QFX3500 Device Hardware Documentation
Figure 27: Clearance Requirements for Airflow and Hardware Maintenance for
Chapter 7 Transceiver and Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Figure 28: QSFP+ Uplink Port Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Part 3 Initial Installation and Configuration
Chapter 9 Unpacking and Mounting the Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Figure 29: Installing an Installation Blade in a Rack . . . . . . . . . . . . . . . . . . . . . . . . 79
Figure 30: Mounting the QFX3500 Device on Four Posts in a Rack Using a
Figure 31: Attaching a Mounting Rail to the QFX3500 . . . . . . . . . . . . . . . . . . . . . . 80
Figure 32: Slide Mounting Rail onto the Rear Mounting Blade . . . . . . . . . . . . . . . . 81
Chapter 10 Connecting the QFX3500 Device to Power . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Figure 33: Connecting a Grounding Cable to a QFX3500 Device . . . . . . . . . . . . . . 85
Figure 34: Connecting an AC Power Cord to an AC Power Supply in a QFX3500
Figure 35: Connecting an AC Power Cord to an AC Power Supply in a QFX3600
Figure 36: DC Power Supply Faceplate for a QFX3500, QFX3600 or QFX3600-I
Figure 37: Securing Ring Lugs to the Terminals on the QFX3500, QFX3600 or
Chapter 11 Connecting the Device to the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Figure 38: RJ-45 Connector on an Ethernet Cable . . . . . . . . . . . . . . . . . . . . . . . . . 93
Figure 39: Connecting a Device to a Network for Out-of-Band Management . . . 94
Figure 40: RJ-45 Connector on an Ethernet Cable . . . . . . . . . . . . . . . . . . . . . . . . . 94
Figure 41: Connecting a Device to a Management Console Through a Console
Figure 42: Connecting a Device Directly to a Management Console . . . . . . . . . . . 95
Figure 43: QFX3500 Using the 40G Ports as the VCPs . . . . . . . . . . . . . . . . . . . . . 98
Figure 44: QFX3500 Using the 10G Ports as the VCPs . . . . . . . . . . . . . . . . . . . . . 99
Figure 45: QFX3600 Using the 40G Ports as the VCPs . . . . . . . . . . . . . . . . . . . . 100
Figure 46: QFX3500 and QFX3600 Mixed Using the 40G Ports as the VCPs . . . 100
Figure 47: QFX3500 and QFX3600 Mixed Using Both 40G Ports and 10G Ports
Figure 48: QFX5100 Master Connecting QFX3600 and QFX3500 Using 40G
Figure 49: Mixed Mode QFX5100 VCF with QFX3500 and QFX3600 Leaf
a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Two-Rail Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
or QFX3600-I Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
QFX3600-I DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
as the VCPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Ports as VCPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Part 4 Installing, Maintaining, and Replacing Components
Chapter 13 Replacing Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Figure 50: Installing a Fan Tray in a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . 123
Figure 51: Removing a Fan Tray from a QFX3500 Device . . . . . . . . . . . . . . . . . . . 125
Figure 52: Installing a Power Supply in a QFX3500 Device . . . . . . . . . . . . . . . . . . 126
Figure 53: Removing a Power Supply from a QFX3500 Device . . . . . . . . . . . . . . 128
Copyright © 2017, Juniper Networks, Inc.x
List of Figures
Figure 54: Installing a Management Board in a QFX3500 Device . . . . . . . . . . . . 129
Figure 55: Removing a Management Board from a QFX3500 Device . . . . . . . . . . 131
Chapter 14 Replacing Transceivers and Fiber-Optic Cables . . . . . . . . . . . . . . . . . . . . . . 133
Figure 56: Installing a Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Figure 57: Removing an SFP, SFP+, XFP, or a QSFP+ Transceiver . . . . . . . . . . . . . 137
Figure 58: Connecting a Fiber-Optic Cable to an Optical Transceiver Installed
in a Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Chapter 16 Contacting Customer Support and Returning the Chassis or
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Figure 59: Location of the Serial Number ID Label on a QFX3500 Device . . . . . . 149
Part 6 Safety and Compliance Information
Chapter 24 Power and Electrical Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Figure 60: Placing a Component into an Antistatic Bag . . . . . . . . . . . . . . . . . . . . 199
xiCopyright © 2017, Juniper Networks, Inc.
QFX3500 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: Physical Specifications for the QFX3500 Device Chassis . . . . . . . . . . . . . 17
Table 4: FRUs in a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Table 5: Network Port LEDs on SFP+ Access Ports on a QFX3500 Device . . . . . . 22
Table 6: Uplink Port LEDs on QSFP+ Uplink Ports on a QFX3500 Device . . . . . . . 23
Table 7: Chassis Status LEDs on a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . 24
Table 8: Airfow Direction in QFX3500 Management Boards . . . . . . . . . . . . . . . . . 26
Table 9: Management Port LEDs on a QFX3500 Device . . . . . . . . . . . . . . . . . . . . 27
Chapter 3 Cooling System and Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Table 10: Airflow Direction in QFX3500 Device Models . . . . . . . . . . . . . . . . . . . . . 30
Table 11: Airflow Direction in QFX3500 Device FRUs . . . . . . . . . . . . . . . . . . . . . . . 32
Table 12: Fan Tray LED in a QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Chapter 4 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Table 13: Airfow Direction in QFX3500, QFX3600, or QFX3600-I AC Power
Table 14: Airflow Direction in QFX3500, QFX3600, and QFX3600-I Device DC
Table 15: AC Power Supply LEDs on a QFX3500, QFX3600, or QFX3600-I
Table 16: DC Power Supply LEDs on a QFX3500, QFX3600, or QFX3600-I
Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Part 2 Site Planning, Preparation, and Specifications
Chapter 5 Preparation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Table 17: Site Preparation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Table 18: QFX3500 Device Environmental Tolerances . . . . . . . . . . . . . . . . . . . . . . 47
Table 19: Site Electrical Wiring Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Table 20: Deployment Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Table 21: Rack Requirements for the QFX3500 Device . . . . . . . . . . . . . . . . . . . . . . 51
Table 22: Cabinet Requirements for the QFX3500 Device . . . . . . . . . . . . . . . . . . . 52
Chapter 6 Power Specifications and Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Table 23: AC Power Specifications for a QFX3500 Device . . . . . . . . . . . . . . . . . . . 55
xiiiCopyright © 2017, Juniper Networks, Inc.
QFX3500 Device Hardware Documentation
Table 24: AC Power Cord Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Table 25: DC Power Specifications for a QFX3500 Device . . . . . . . . . . . . . . . . . . . 57
Chapter 7 Transceiver and Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Table 26: QSFP+ and QSFP28 Optical Module Receptacle Pinouts . . . . . . . . . . . 61
Table 27: QSFP+ MPO Fiber-Optic Crossover Cable Pinouts . . . . . . . . . . . . . . . . . 61
Table 28: Cable Specifications for Console and Management Connections for
Table 29: Estimated Values for Factors Causing Link Loss . . . . . . . . . . . . . . . . . . 66
Chapter 8 Pinout Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Table 30: Console Port Connector Pinout Information . . . . . . . . . . . . . . . . . . . . . . 70
Table 31: RJ-45 Management Port Connector Pinout Information . . . . . . . . . . . . . 71
Part 3 Initial Installation and Configuration
Chapter 9 Unpacking and Mounting the Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Table 32: Inventory of Components Supplied with a QFX3500 Device . . . . . . . . . 76
Part 5 Troubleshooting
the QFX Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Chapter 17 Alarm Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Table 33: Alarm Terms and Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Table 34: QFX3500 Chassis Alarm Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
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.
QFX3500 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.
QFX3500 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:
•
Find CSC offerings: http://www.juniper.net/customers/support/
•
Search for known bugs: https://prsearch.juniper.net/
•
Find product documentation: http://www.juniper.net/documentation/
•
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:
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•
Open a case online in the CSC Case Management tool: http://www.juniper.net/cm/
To verify service entitlementby productserial number,use our Serial Number Entitlement
(SNE) Tool: https://entitlementsearch.juniper.net/entitlementsearch/
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
About the Documentation
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.
QFX3500 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 29
•
Power Supplies on page 35
1Copyright © 2017, Juniper Networks, Inc.
QFX3500 Device Hardware Documentation
Copyright © 2017, Juniper Networks, Inc.2
CHAPTER 1
System Overview
•
QFX3500 Device Overview on page 3
•
Understanding Redundancy of QFX3500 Device Components and
Functionality on page 7
•
Understanding QFX Series Virtual Chassis on page 8
•
Understanding QFX Series Virtual Chassis Components on page 11
QFX3500 Device Overview
The Juniper Networks QFX3500 device is a high-speed, multipurpose switch especially
designed for next-generation data centers. The QFX3500 can be configured as a
standalone switch, a Node device in a QFabric system, or as a member of a QFX Virtual
Chassis.
Forty-eight 10-Gbps access ports in the device use small form-factor pluggable plus
(SFP+) transceivers and operate by default as 10-Gigabit Ethernet interfaces. Optionally,
you can choose to configure up to 12 of the ports as 2-Gbps, 4-Gbps, or 8-Gbps
Fibre Channel (FC) interfaces, and up to 36 of the ports as 1-Gigabit Ethernet interfaces.
When used as a standalone switch, four 40-Gbps uplink ports in the device use quad
small form-factor pluggable plus (QSFP+) to four SFP+ copper breakout cables to
support an additional 15 10-Gigabit Ethernet interfaces.
QFX3500 devices can function as a Fibre Channel over Ethernet (FCoE)-FC gateway or
as an FCoE transit switch. FCoE is a method of supporting converged FC and Ethernet
traffic on a data center bridging (DCB) network by encapsulating unmodified FC frames
in Ethernet to transport the FC frames over the physical Ethernet network.
In a QFabric system, a QFX3500 device functions as a Node device, connected to a
QFabric system through 40-Gbps uplink ports to a Juniper Networks QFX3008-I or
QFX3600-I Interconnect device. Together, the QFX3500 Node devices and QFX3008-I
or QFX3600-I Interconnect devices form a multistage, nonblocking switch fabric that
provides a high-performance, low-latency, unified interconnect solution for
next-generation data centers.
TheQFX3500 Node devices and Interconnect devices are connectedto Juniper Networks
QFX3100 Director devices in an out-of-band management network through Juniper
NetworksEX4200 Ethernet Switches.The QFX3100 Directordevices present the QFabric
3Copyright © 2017, Juniper Networks, Inc.
QFX3500 Device Hardware Documentation
system devices as a single network entity, which enables simplified management of your
data center using the Junos OS command-line interface (CLI).
In a QFX Virtual Chassis, the QFX3500 device can participate with other QFX3500 devices
and QFX3600 devices in a ring topology with up to 10 members.
In a QFX5100 Virtual Chassis Fabric, the QFX3500 device can participate as a leaf device.
Up to a total of 20 devices can participate in the QFX5100 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 QFX3500
device’s 8-gigabyte (GB) internal flash drive. The same Junos OS code base that runs
on QFX3500 devices also runs on all Juniper Networks EX Series switches, and J Series,
M Series, MX Series, and T Series routers.
Hardware
For more information about which features are supported on QFX Series devices, see
Feature Explorer.
When the QFX3500 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 QFX3500 device is 1 rack unit (1 U) in size and designed to fit in
industry-standard 19-inch rack-mount enclosures. See Figure 1 on page 5 and
Figure 2 on page 5 and “Chassis Physical Specifications for a QFX3500 Chassis” on
page 17.
NOTE: The standard mounting configuration for the QFX3500 device uses
a two rail mounting system. The QFX3500-RB-ACRB device model uses a
four rail mounting system for installations that need to recess the switch or
need to mount the port (rear) end of the switch forward.
Copyright © 2017, Juniper Networks, Inc.4
Figure 1: QFX3500 Device Front
FX3500-48S4Q
CO
C1
Management
board
Fan
tray
Fan
tray
Power
supply
Power
supply
Mounting
bracket
Mounting
bracket
g050000
ESD point/
serial number
ID label
g050001
QSFP+
uplink
ports
SFP+
access
ports
SFP+
access
ports
Figure 2: QFX3500 Device Rear
Chapter 1: System Overview
The front panel of the QFX3500 chassis has an LCD panel that displays the device
hostname and the number of active alarms. See “Front Panel of a QFX3500 Device” on
page 19. The rear panel has 48 10-Gbps access ports and 4 40-Gbps uplink ports. See
“Rear Panel of a QFX3500 Device” on page 20.
SFP+ Access Ports
The QFX3500 device has 48 access ports (0 through 47) that support small form-factor
pluggable plus (SFP+) and small form-factor pluggable (SFP) transceivers, as well as
SFP+ direct attach copper cables, also known as Twinax cables. See “Determining
Interface Support for the QFX3500 Device” on page 59.
•
Up to 48 of the access ports can be used for SFP+ transceivers or SFP+ direct attach
copper cables. You can use 10-Gigabit Ethernet SFP+ transceivers and SFP+ direct
attach copper cables in any access port. You can use 2-Gbps, 4-Gbps, or 8-Gbps
Fibre Channel SFP+ transceivers in ports 0 through 5 and ports 42 through 47.
NOTE: If you use Fibre Channel SFP+ transceivers in ports 0 through 5 or
ports 42 through 47, you must configure the entire block of ports as
Fibre Channel ports. For example, if you use a Fibre Channel SFP+
transceiver in any of the ports 0 through 5, then ports 0 through 5 must be
configured as Fibre Channel ports. If you use a Fibre Channel SFP+
transceiverin any of the ports 42 through 47, then ports 42 through 47 must
be configured as Fibre Channel ports. You then cannot use
10-Gigabit Ethernet SFP+ transceivers in these ports.
5Copyright © 2017, Juniper Networks, Inc.
10-Gigabit Ethernet
or Fibre Channel ports
QSFP+ Uplink ports
10-Gigabit Ethernet
or Fibre Channel ports
10-Gigabit Ethernet
or 1-Gigabit Ethernet ports
LA
ST
LA
ST
LA
ST
LA
ST
Q0 Q1 Q2 Q3 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 470 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
g050013
0 1 2 3 4 5
42 43 44 45 46 47
QFX3500 Device Hardware Documentation
•
Up to 36 of the access ports can be used for SFP transceivers. Gigabit Ethernet SFP
transceivers can be used in ports 6 through 41.
Figure 3 on page 6 shows the location of the SFP+ access ports, including the ports that
can be used with Fibre Channel SFP+ transceiversand Gigabit Ethernet SFP transceivers.
Figure 3: SFP+ Access Port Locations
CAUTION: Do not place a copper transceiver in an access port directly
above or below another copper transceiver. Internal damage to the access
ports and device can occur. Because of this limitation, a maximum of 18
copper transceivers can be installed in ports 6 through 41. We recommend
using only the top row of access ports for copper transceivers.
QSFP+ Uplink Ports
The QFX3500 devicehas fouruplink ports (Q0 through Q3) thatsupport up tofour QSFP+
transceivers, as well as QSFP+ DAC or DAC breakout cables. See “Determining Interface
Support for the QFX3500 Device” on page 59.
When the QFX3500 device is used as part of a QFabric system, these uplink ports are
used to connect the QFX3500 Node device to QFX3008-I or QFX3600-I Interconnect
devices. See Connecting a QFX3500 Node Device to a QFX3008-I Interconnect Device or
Connecting a QFX3500 Node Device to a QFX3600-I Interconnect Device.
When the QFX3500 device is used as a standalone switch, these uplink ports are
configuredby default as 15 10-Gigabit Ethernet interfaces.Another option for these ports
is to configure one or more of the ports as 40-Gigabit Ethernet interfaces.
Figure 4 on page 7 shows the location of the QSFP+ uplink ports and the default
10-Gigabit Ethernet interface numbering.
NOTE: Port Q0 is unique in that the number of 10-Gigabit Ethernet interfaces
supported varies by Junos OS release. In some Junos OS releases, port 00
has a reserved port and in other releasesthe port is available. See the topics
on Channelizing Interfaces or Configuring the Port Type, for your specific
release.
Copyright © 2017, Juniper Networks, Inc.6
NOTE: The QSFP+ uplink ports are not supported in Junos OS Release 11.1.
QSFP+ ports
LA
ST
LA
ST
LA
ST
LA
ST
Q0 Q1 Q2 Q3 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 470 1 2 3 4 5 6 7 8 9 34 35 36 37 38 39 40 41 42 43 44 45 46 47
LA
ST
LA
ST
LA
ST
LA
ST
Q0 Q1 Q2 Q3
g050023
xe- 0/1/0
or
xe-0/1/1*
through xe-0/1/3
xe-0/1/4
through xe-0/1/7
xe-0/1/8
through xe-0/1/11
xe-0/1/12
through xe-0/1/15
*Port availability is release dependent.
See the topic on Channelizing Interfaces for your Junos Release.
The QSFP+ uplink ports are supported in Junos OS Release 11.2 and later. To
configure the ports as 40-Gigabit Ethernet interfaces, you must be using
Junos OS Release 12.2X50-D20 or later.
Figure 4: QSFP+ Uplink Port Locations
Chapter 1: System Overview
Related
Documentation
Field-Replaceable Units in a QFX3500 Device on page 18•
• Site Preparation Checklist for a QFX3500 Device on page 45
• Access Port and Uplink Port LEDs on a QFX3500 Device on page 21
• Installing and Removing QFX3500 Device Hardware Components on page 121
Understanding Redundancy of QFX3500 Device Components and Functionality
The following hardware components provide redundancy on a QFX3500 device:
•
Power supplies—The QFX3500 device has one or two power supplies. Each power
supply provides power to all components in the device. If two power supplies are
installed, 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.
•
Cooling system—The QFX3500 device has two fan trays. Additional cooling is provided
by two fan modules on the management board. If a fan module on a fan tray or
management board fails and is unable to keep the QFX3500 device within the desired
CAUTION: Do not connect feed A and feed B to the same power supply
input terminal.
7Copyright © 2017, Juniper Networks, Inc.
QFX3500 Device Hardware Documentation
temperature thresholds, chassis alarms occur and the QFX3500 device may shut
down.
Related
Documentation
AC Power Supply for a QFX3500, QFX3600, or QFX3600-I Device on page 35•
• DC Power Supply for a QFX3500, QFX3600, or QFX3600-I Device on page 37
• Cooling System and Airflow for a QFX3500 Device on page 29
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.
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 8
•
QFX5110 Switches in a Virtual Chassis on page 9
•
QFX5100 Switches in a Virtual Chassis on page 10
•
QFX3500 and QFX3600 Switches in a Virtual Chassis on page 11
•
EX4300 Switches in a QFX Series Virtual Chassis on page 11
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:
•
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)
Copyright © 2017, Juniper Networks, Inc.8
Chapter 1: System Overview
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
•
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
9Copyright © 2017, Juniper Networks, Inc.
QFX3500 Device Hardware Documentation
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
•
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.
Copyright © 2017, Juniper Networks, Inc.10
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