Juniper QFX5110 Operator's manual

Virtual Chassis Fabric Hardware
Documentation
Published
2020-11-06

Juniper Networks, Inc.
1133 Innovation Way
Sunnyvale, California 94089
USA
408-745-2000
www.juniper.net
Juniper Networks, the Juniper Networks logo, Juniper, and Junos are registered trademarks of Juniper Networks, Inc. in
the United States and other countries. All other trademarks, service marks, registered marks, or registered service marks
are the property of their respective owners.
Juniper Networks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right
to change, modify, transfer, or otherwise revise this publication without notice.
Virtual Chassis Fabric Hardware Documentation
Copyright © 2020 Juniper Networks, Inc. All rights reserved.
The information in this document is current as of the date on the title page.
YEAR 2000 NOTICE
Juniper Networks hardware and software products are Year 2000 compliant. Junos OS has no known time-related
limitations through the year 2038. However, the NTP application is known to have some difficulty in the year 2036.
END USER LICENSE AGREEMENT
The Juniper Networks product that is the subject of this technical documentation consists of (or is intended for use with)
Juniper Networks software. Use of such software is subject to the terms and conditions of the End User License Agreement
(“EULA”) posted at https://support.juniper.net/support/eula/. By downloading, installing or using such software, you
agree to the terms and conditions of that EULA.
ii

Table of Contents
About the Documentation | xviii
Documentation and Release Notes | xviii
Using the Examples in This Manual | xviii
Merging a Full Example | xix
Merging a Snippet | xx
Documentation Conventions | xx
Documentation Feedback | xxiii
Requesting Technical Support | xxiii
Self-Help Online Tools and Resources | xxiv
Creating a Service Request with JTAC | xxiv
Overview
1
Virtual Chassis Fabric Overview | 2
Virtual Chassis Fabric Overview | 2
Understanding Virtual Chassis Fabric Configuration | 4
Virtual Chassis Fabric Setup | 5
Autoprovisioned Virtual Chassis Fabric Configuration | 5
Preprovisioned Virtual Chassis Fabric Configuration | 6
Nonprovisioned Virtual Chassis Fabric Configuration | 6
Configuration File Management in a VCF | 7
Logging into a Virtual Chassis Fabric | 7
Understanding Interface Numbering | 7
Virtual Chassis Fabric Hardware Overview | 8
QFX5110 Overview | 10
QFX5110 Hardware Overview | 10
Benefits of QFX5110 | 10
QFX5110 Models Overview | 11
QFX5110-48S Hardware | 13
QFX5110-32Q Hardware | 14
iii

System Software | 14
QFX5110-48S Port Panel | 15
Switch Overview | 15
Network Ports | 16
Channelizing Interfaces | 17
Virtual Chassis and Virtual Chassis Fabric | 17
QFX5110-32Q Port Panel | 18
Switch Overview | 18
Network Ports | 19
Channelizing Interfaces | 20
Virtual Chassis and Virtual Chassis Fabric | 21
QFX5100 Overview | 22
QFX5100 Device Hardware Overview | 22
QFX5100 Hardware | 22
System Software | 31
Port Panel of a QFX5100-24Q Device | 32
Switch Ports | 32
QFabric Systems | 33
Channelizing Interfaces (Non-QFabric) | 33
Virtual Chassis and Virtual Chassis Fabric | 34
Port LEDs | 35
Port Panel of QFX5100-48S and QFX5100-48SH Devices | 36
Port Panel of QFX5100-48T and QFX5100-48TH Devices | 39
Port Panel of a QFX5100-96S Device | 41
Switch Ports | 42
Channelizing Interfaces | 42
Virtual Chassis and Virtual Chassis Fabric Support | 43
QFX3600 Overview | 45
QFX3600 Device Overview | 45
Software | 46
Hardware | 46
Front Panel of a QFX3600 Device | 48
iv

QFX3500 Overview | 51
QFX3500 Device Overview | 51
Software | 52
Hardware | 52
SFP+ Access Ports | 53
QSFP+ Uplink Ports | 54
Front Panel of a QFX3500 Device | 56
EX4300 Overview | 58
EX4300 Switches Hardware Overview | 58
Benefits of the EX4300 Switch | 59
Software | 59
EX4300 Switches First View | 59
24-Port EX4300 Switches | 60
32-Port EX4300 Switches | 62
48-Port EX4300 Switches | 64
Uplink Modules | 75
Virtual Chassis | 78
Power Supplies | 79
Fan Modules | 80
EX4300 Switch Components | 81
Planning
2
Site Preparation | 87
Plan a Virtual Chassis Fabric Deployment | 87
QFX5110 Site Preparation Checklist | 90
Site Preparation Checklist for a QFX5100 Device | 92
Site Preparation Checklist for a QFX3600 or QFX3600-I Device | 93
Site Preparation Checklist for a QFX3500 Device | 95
Site Preparation Checklist for EX4300 Switches | 97
QFX5110 Environmental Requirements and Specifications | 98
Environmental Requirements and Specifications for a QFX5100 Device | 99
Environmental Requirements and Specifications for QFX3600 and QFX3600-I Devices | 101
Environmental Requirements and Specifications for a QFX3500 Device | 102
v

Environmental Requirements and Specifications for EX Series Switches | 103
Rack and Cabinet Requirements | 109
QFX5110 Rack Requirements | 109
Rack Requirements for a QFX5100 Device | 111
Rack Requirements for a QFX3600 or QFX3600-I Device | 112
Rack Requirements for a QFX3500 Device | 114
Rack Requirements | 115
Cabinet Requirements for a QFX5100 Device | 117
Cabinet Requirements for a QFX3600 or QFX3600-I Device | 118
Cabinet Requirements for a QFX3500 Device | 119
Cabinet Requirements | 120
QFX5110 Clearance Requirements for Airflow and Hardware Maintenance | 121
Clearance Requirements for Airflow and Hardware Maintenance for a QFX5100 Device | 122
Clearance Requirements for Airflow and Hardware Maintenance for a QFX3600 or QFX3600-I
Device | 123
Clearance Requirements for Airflow and Hardware Maintenance for a QFX3500 Device | 125
Clearance Requirements for Airflow and Hardware Maintenance for EX4300 Switches | 126
Port and Interface Specifications | 130
Console Port Connector Pinout Information | 130
Console Port Connector Pinouts for the QFX Series | 131
Management Port Connector Pinouts for the QFX Series | 132
Mini-USB Port Pinout Specifications | 133
USB Port Specifications for an EX Series Switch | 133
USB Port Specifications for the QFX Series | 134
Transceiver and Cable Specifications | 136
Determining Transceiver Support for the QFX5110 | 136
Determining Interface Support for the QFX5100 Device | 137
Determining Interface Support for the QFX3600 Device | 140
Determining Interface Support for the QFX3500 Device | 141
Pluggable Transceivers Supported on EX4300 Switches | 143
Cable Specifications for QSFP+ and QSFP28 Transceivers | 144
vi

Cable Specifications for Console and Management Connections for the QFX Series | 146
Calculating the Fiber-Optic Cable Power Budget for QFX Series Switches | 147
Calculating the Fiber-Optic Cable Power Margin for QFX Series Switches | 147
Management Cable Specifications | 149
Understanding EX Series Switches Fiber-Optic Cable Signal Loss, Attenuation, and Dispersion | 150
Signal Loss in Multimode and Single-Mode Fiber-Optic Cable | 150
Attenuation and Dispersion in Fiber-Optic Cable | 150
Understanding QFX Series Fiber-Optic Cable Signal Loss, Attenuation, and Dispersion | 151
Signal Loss in Multimode and Single-Mode Fiber-Optic Cables | 151
Attenuation and Dispersion in Fiber-Optic Cable | 152
Planning QFX5100 Power Requirements | 153
AC Power Specifications for a QFX5100 Device | 153
AC Power Cord Specifications for a QFX Series Device | 154
DC Power Specifications for a QFX5100 Device | 156
Planning QFX5110 Power Requirements | 158
QFX5110 AC Power Specifications | 158
AC Power Cord Specifications for a QFX Series Device | 159
QFX5110 DC Power Specifications | 161
Planning QFX3600 Power Requirements | 162
AC Power Specifications for a QFX3600 or QFX3600-I Device | 162
AC Power Cord Specifications for a QFX Series Device | 163
DC Power Specifications for a QFX3600 or QFX3600-I Device | 165
Planning QFX3500 Power Requirements | 166
AC Power Specifications for a QFX3500 Device | 166
AC Power Cord Specifications for a QFX Series Device | 167
DC Power Specifications for a QFX3500 Device | 169
Planning EX4300 Power Requirements | 170
AC Power Supply in EX4300 Switches | 170
Characteristics of an AC Power Supply | 171
AC Power Supply Airflow | 173
vii

N+0 Redundancy Configuration of AC Power Supplies | 174
N+N Redundancy Configuration of AC Power Supplies | 177
AC Power Cord Specifications for an EX4300 Switch | 180
DC Power Supply in EX4300 Switches | 184
Characteristics of a DC Power Supply | 185
DC Power Supply Airflow | 186
N+0 Redundancy Configuration of DC Power Supplies | 187
N+N Redundancy Configuration of DC Power Supplies | 188
Compliance | 190
Agency Approvals for EX Series Switches | 190
Agency Approvals for the QFX Series | 191
Compliance Statements for EMC Requirements for EX Series Switches | 192
Canada | 193
Taiwan | 193
European Community | 194
Israel | 194
Japan | 194
Korea | 195
United States | 195
FCC Part 15 Statement | 195
Nonregulatory Environmental Standards | 196
Compliance Statements for EMC Requirements for the QFX Series | 197
Canada | 197
European Community | 198
Israel | 198
Japan | 198
Korea | 199
Taiwan | 199
United States | 199
Nonregulatory Environmental Standards | 199
Compliance Statements for Acoustic Noise for EX Series Switches | 200
viii

Safety
3
General Safety Information | 203
General Safety Guidelines and Warnings | 203
Definitions of Safety Warning Levels | 204
Fire Safety Requirements | 207
Fire Suppression | 207
Fire Suppression Equipment | 207
Qualified Personnel Warning | 208
Warning Statement for Norway and Sweden | 209
Radiation and Laser Warnings | 210
Radiation from Open Port Apertures Warning | 211
Laser and LED Safety Guidelines and Warnings for the QFX Series | 212
Class 1M Laser Product Warning | 212
Class 1M Laser Radiation Warning | 213
Unterminated Fiber-Optic Cable Warning | 214
Installation and Maintenance Safety Information | 217
Installation Instructions Warning | 218
QFX5100 Installation Safety Guidelines | 218
Chassis Lifting Guidelines for a QFX3600 or QFX3600-I Device | 219
Chassis Lifting Guidelines for a QFX3500 Device | 220
Chassis Lifting Guidelines for EX4300 Switches | 220
Restricted Access Warning | 222
Ramp Warning | 224
Rack-Mounting and Cabinet-Mounting Warnings | 224
Grounded Equipment Warning | 230
Maintenance and Operational Safety Guidelines and Warnings | 230
Battery Handling Warning | 232
Jewelry Removal Warning | 233
Lightning Activity Warning | 235
Operating Temperature Warning | 236
Product Disposal Warning | 238
Wall-Mounting Warning for EX4300 Switches | 239
ix

Power and Electrical Safety Information | 240
General Electrical Safety Guidelines and Warnings | 240
Prevention of Electrostatic Discharge Damage | 242
Action to Take After an Electrical Accident | 243
AC Power Electrical Safety Guidelines | 244
AC Power Disconnection Warning | 245
DC Power Electrical Safety Guidelines | 245
DC Power Disconnection Warning | 247
DC Power Grounding Requirements and Warning | 249
DC Power Wiring Sequence Warning | 251
DC Power Wiring Terminations Warning | 254
Multiple Power Supplies Disconnection Warning | 257
TN Power Warning | 258
Installation
4
Before You Begin | 260
Virtual Chassis Fabric Installation Overview | 260
Installing a QFX5110 Switch | 262
Standalone Installation Overview | 262
Unpacking a QFX5110 | 263
Mounting a QFX5110 in a Rack | 264
Before You Begin Rack Installation | 265
Connect the QFX5110 to Earth Ground | 267
Connecting AC Power to a QFX5110 | 268
Connecting DC Power to a QFX5110 | 271
Installing a QFX5100 Switch | 276
QFX5100 Standalone Installation Overview | 276
Unpack a QFX5100 Device | 277
Mount a QFX5100 Device in a Rack or Cabinet | 279
Before You Begin Rack Installation | 279
Four-Post Procedure | 281
Connecting Earth Ground to a QFX5100 Device | 284
x

Connecting AC Power to a QFX5100 Device | 285
Connecting DC Power to a QFX5100 Device | 288
Connecting a QFX Series Device to a Management Console | 293
Connecting a QFX5100 Device in a Virtual Chassis Fabric | 295
Connecting a QFX5100 Device to a Network for Out-of-Band Management | 296
Installing a QFX3600 Switch | 298
Installing and Connecting a QFX3600 or QFX3600-I Device | 298
Unpacking a QFX3600 or QFX3600-I Device | 299
Mounting a QFX3600 or QFX3600-I Device on Two Posts in a Rack or Cabinet | 301
Mounting a QFX3600 or QFX3600-I Device on Four Posts in a Rack or Cabinet | 303
Connecting Earth Ground to QFX3600 or QFX3600-I Devices | 308
Connecting AC Power to a QFX3500, QFX3600, or QFX3600-I Device | 309
Connecting DC Power to a QFX3500, QFX3600, or QFX3600-I Device | 312
Connecting a QFX Series Device to a Management Console | 317
Connecting QFX Series and EX Series Switches in a QFX Virtual Chassis | 319
Before You Start | 319
Valid Configurations | 320
Cabling QFX3500 Switches in a QFX5100 Virtual Chassis | 321
Cabling QFX3600 Switches in a QFX Virtual Chassis | 322
Cabling a Mixed QFX Virtual Chassis | 323
Connect a Device to a Network for Out-of-Band Management | 325
Installing a QFX3500 Switch | 326
Installing and Connecting a QFX3500 Device | 326
Unpacking a QFX3500 Device | 327
Mounting a QFX3500 Device in a Rack or Cabinet | 328
Before You Begin Rack Installation | 329
Two Mounting Rails Procedure | 330
Four Mounting Rails Procedure | 332
Connecting Earth Ground to a QFX3500 Device | 334
Connecting AC Power to a QFX3500, QFX3600, or QFX3600-I Device | 336
Connecting DC Power to a QFX3500, QFX3600, or QFX3600-I Device | 338
xi

Connecting a QFX Series Device to a Management Console | 343
Connecting QFX Series and EX Series Switches in a QFX Virtual Chassis | 345
Before You Start | 345
Valid Configurations | 346
Cabling QFX3500 Switches in a QFX5100 Virtual Chassis | 347
Cabling QFX3600 Switches in a QFX Virtual Chassis | 348
Cabling a Mixed QFX Virtual Chassis | 349
Connecting a QFX3500 Device to a Network for Out-of-Band Management | 351
Installing an EX4300 Switch | 353
Installing and Connecting an EX4300 Switch | 353
Unpacking an EX4300 Switch | 354
Mounting an EX4300 Switch | 355
Mounting an EX4300 Switch on Two Posts of a Rack or Cabinet | 356
Mounting an EX4300 Switch on Four Posts of a Rack or Cabinet | 359
Mounting an EX4300 Switch in a Recessed Position in a Rack or Cabinet | 363
Mounting an EX4300 Switch on a Wall | 363
Performing the Initial Configuration | 368
Autoprovisioning a Virtual Chassis Fabric | 368
Preprovisioning a Virtual Chassis Fabric | 373
Configuring a Nonprovisioned Virtual Chassis Fabric | 380
Cabling a Virtual Chassis Fabric | 385
Connecting QFX5110 in a QFX5110 Virtual Chassis Fabric | 385
Connecting a QFX5100 Device in a Virtual Chassis Fabric | 387
Connecting a QFX3500 or QFX3600 Switch in a QFX5100 Virtual Chassis Fabric | 389
Connecting EX Series Switches in a QFX5100 Virtual Chassis Fabric | 391
Maintenance
5
Removing or Replacing a Device | 394
Adding a Device to a Virtual Chassis Fabric | 394
Adding a Leaf Device to an Autoprovisioned Virtual Chassis Fabric | 395
Adding a Spine Device to an Autoprovisioned Virtual Chassis Fabric | 397
Adding a Spine or Leaf Device to a Preprovisioned Virtual Chassis Fabric | 399
xii

Adding a Spine or Leaf Device to a Nonprovisioned Virtual Chassis Fabric | 402
Removing a Device From a Virtual Chassis Fabric | 405
Powering Off a QFX5110 | 406
Powering Off a QFX5100 Device | 409
Powering Off a QFX3600 Device | 412
Powering Off a QFX3500 Device | 414
Removing a QFX5110 from a Rack | 416
Removing a QFX5100 Device from a Rack or Cabinet | 418
Removing a QFX3600 or QFX3600-I Device from a Rack or Cabinet | 419
Removing a QFX3500 Device from a Rack or Cabinet | 420
Replacing QFX5110 Components | 422
Installing a Fan Module in a QFX5110 | 422
Removing a Fan Module from a QFX5110 | 423
Installing a Power Supply in a QFX5110 | 425
Removing a Power Supply from a QFX5110 | 427
Replacing QFX5100 Components | 429
Installing and Removing QFX5100 Device Hardware Components | 429
Installing a Power Supply in a QFX5100 Device | 430
Removing a Power Supply from a QFX5100 Device | 432
Installing an Expansion Module in a QFX5100 Device | 434
Removing an Expansion Module from a QFX5100 Device | 438
Installing a Fan Module in a QFX5100 Device | 440
Removing a Fan Module from a QFX5100 Device | 442
Replacing QFX3600 Components | 444
Installing and Removing QFX3600 or QFX3600-I Device Hardware Components | 444
Removing a Power Supply from a QFX3600 or QFX3600-I Device | 445
Installing a Power Supply in a QFX3600 or QFX3600-I Device | 447
Removing a Fan Tray from a QFX3600 or QFX3600-I Device | 449
Installing a Fan Tray in a QFX3600 or QFX3600-I Device | 450
xiii

Replacing QFX3500 Components | 452
Installing and Removing QFX3500 Device Hardware Components | 452
Installing a Power Supply in a QFX3500 Device | 453
Removing a Power Supply from a QFX3500 Device | 455
Installing a Fan Tray in a QFX3500 Device | 457
Removing a Fan Tray from a QFX3500 Device | 459
Installing a Management Board in a QFX3500 Device | 460
Removing a Management Board from a QFX3500 Device | 462
Replacing EX4300 Components | 464
Installing and Removing EX4300 Switch Hardware Components | 464
Installing an AC Power Supply in an EX4300 Switch | 465
Installing a DC Power Supply in an EX4300 Switch | 467
Installing a Fan Module in an EX4300 Switch | 469
Installing an Uplink Module in an EX4300 Switch | 471
Install a Transceiver | 473
Replacing Transceivers and Fiber-Optic Cables | 476
Removing a Transceiver from a QFX Series Device | 476
Remove a Transceiver | 478
Installing a Transceiver in a QFX Series Device | 481
Install a Transceiver | 484
Disconnecting a Fiber-Optic Cable from a QFX Series Device | 486
Disconnect a Fiber-Optic Cable | 487
Connecting a Fiber-Optic Cable to a QFX Series Device | 488
Connect a Fiber-Optic Cable | 490
Routine Maintenance | 491
Maintaining Fiber-Optic Cables in a QFX Series Device | 491
How to Handle Fiber-Optic Cables | 492
Viewing QFX5110 System Information | 493
QFX5110 Chassis Status LEDs | 493
QFX5110 Management Port LEDs | 496
QFX5110 Network Port LEDs | 498
xiv

QFX5110 Fan Module LED | 500
QFX5110 AC Power Supply LEDs | 501
QFX5110 DC Power Supply LEDs | 502
Viewing QFX5100 System Information | 505
Chassis Status LEDs on a QFX5100 Device | 505
Management Port LEDs on a QFX5100 Device | 508
Access Port and Uplink Port LEDs on a QFX5100 Device | 510
Fan Module LED on a QFX5100 Device | 513
AC Power Supply LEDs on a QFX5100 Device | 514
DC Power Supply LEDs on a QFX5100 Device | 516
Viewing QFX3600 System Information | 518
Chassis Status LEDs in the QFX3600 and QFX3600-I Device | 518
Management Port LEDs in the QFX3600 and QFX3600-I Device | 520
Access Port and Uplink Port LEDs on a QFX3600 or QFX3600-I Device | 521
Fan Tray LED on a QFX3600 or QFX3600-I Device | 522
AC Power Supply LEDs on a QFX3500, QFX3600, or QFX3600-I Device | 523
DC Power Supply LEDs on a QFX3500, QFX3600, or QFX3600-I Device | 525
Viewing QFX3500 System Information | 527
Chassis Status LEDs on a QFX3500 Device | 527
Management Port LEDs on a QFX3500 Device | 529
Access Port and Uplink Port LEDs on a QFX3500 Device | 530
Fan Tray LED on a QFX3500 Device | 532
AC Power Supply LEDs on a QFX3500, QFX3600, or QFX3600-I Device | 533
DC Power Supply LEDs on a QFX3500, QFX3600, or QFX3600-I Device | 534
Viewing EX4300 System Information | 537
Dashboard for EX Series Switches | 537
Graphical Chassis Viewer | 538
System Information Panel | 540
Health Status Panel | 543
Capacity Utilization Panel | 547
Alarms Panel | 547
xv

File System Usage | 548
Chassis Viewer | 548
Chassis Status LEDs on EX4300 Switches | 564
Network Port, Built-In QSFP+ Port, Uplink Port, and Uplink Module Port LEDs on EX4300
Switches | 566
Management Port LEDs on EX4300 Switches | 573
AC Power Supply LEDs in EX4300 Switches | 575
DC Power Supply LEDs in EX4300 Switches | 576
Troubleshooting
6
Restoring Junos OS | 579
Creating an Emergency Boot Device for QFX Series Switches | 579
Performing a Recovery Installation | 581
Recovering the Installation Using an Emergency Boot Device | 584
Returning Hardware | 586
Locating the Serial Number on a QFX5110 Device or Component | 586
Listing the Chassis and Component Details Using the CLI | 587
Locating the Chassis Serial Number ID Label on a QFX5110 | 588
Locating the Serial Number ID Labels on FRU Components | 588
Locating the Serial Number on a QFX5100 Device or Component | 590
Listing the Chassis and Component Details Using the CLI | 590
Locating the Chassis Serial Number ID Label on a QFX5100 Switch | 591
Locating the Serial Number ID Labels on FRU Components | 593
Locating the Serial Number on a QFX3600 or QFX3600-I Device or Component | 593
Listing the Chassis and Component Details Using the CLI | 594
Locating the Chassis Serial Number ID Label on a QFX3600 or QFX3600-I Device | 595
Locating the Serial Number ID Labels on FRU Components | 595
Locating the Serial Number on a QFX3500 Device or Component | 596
Listing the Chassis and Component Details Using the CLI | 596
Locating the Chassis Serial Number ID Label on a QFX3500 Device | 597
Locating the Serial Number ID Labels on FRU Components | 597
Locating the Serial Number on an EX4300 Switch or Component | 598
Listing the Switch and Components Details with the CLI | 598
Locating the Chassis Serial Number ID Label on an EX4300 Switch | 600
xvi

Locating the Serial Number ID Labels on FRUs in an EX4300 Switch | 601
Packing an QFX5110 Device or Component for Shipping | 605
Packing a QFX5110 Switch for Shipping | 606
Packing QFX5110 Components for Shipping | 606
Packing a QFX5100 Device or Component for Shipping | 607
Packing a QFX5100 Switch for Shipping | 608
Packing QFX5100 Switch Components for Shipping | 608
Packing a QFX3600 or QFX3600-I Device or Component for Shipping | 609
Packing a QFX3600 or QFX3600-I Device for Shipping | 610
Packing QFX3600 or QFX3600-I Device Components for Shipping | 610
Packing a QFX3500 Device or Component for Shipping | 611
Packing a QFX3500 Device for Shipping | 612
Packing QFX3500 Device Components for Shipping | 612
Packing an EX4300 Switch or Component for Shipping | 613
Packing an EX4300 Switch for Shipping | 613
Packing EX4300 Switch Components for Shipping | 615
Returning a QFX5110 or Component | 616
Returning a QFX5100 Device or Component for Repair or Replacement | 616
Returning a QFX3600 or QFX3600-I Device or Component for Repair or Replacement | 617
Returning a QFX3500 Device or Component for Repair or Replacement | 618
Returning an EX4300 Switch or Component for Repair or Replacement | 619
Contacting Customer Support to Obtain a Return Materials Authorization for a QFX Series Device
or Component | 619
Contact Customer Support to Obtain Return Material Authorization | 621
Alarms and System Log Messages | 623
Understand Alarms | 623
Chassis Alarm Messages | 624
Chassis Alarm Messages on a QFX3600 or QFX3600-I Device | 629
Chassis Alarm Messages on a QFX3500 Device | 632
Interface Alarm Messages | 636
Understand Alarm Types and Severity Levels on EX Series Switches | 637
Check Active Alarms with the J-Web Interface | 639
Monitor System Log Messages | 640
xvii

About the Documentation
IN THIS SECTION
Documentation and Release Notes | xviii
Using the Examples in This Manual | xviii
Documentation Conventions | xx
Documentation Feedback | xxiii
Requesting Technical Support | xxiii
Use this guide to plan, install, perform initial software configuration, perform routine maintenance, and to
troubleshoot VCF hardware.
After completing the installation and basic configuration procedures covered in this guide, refer to the
Junos OS documentation for further software configuration.
Documentation and Release Notes
To obtain the most current version of all Juniper Networks®technical documentation, see the product
documentation page on the Juniper Networks website at https://www.juniper.net/documentation/.
If the information in the latest release notes differs from the information in the documentation, follow the
product Release Notes.
Juniper Networks Books publishes books by Juniper Networks engineers and subject matter experts.
These books go beyond the technical documentation to explore the nuances of network architecture,
deployment, and administration. The current list can be viewed at https://www.juniper.net/books.
Using the Examples in This Manual
If you want to use the examples in this manual, you can use the load merge or the load merge relative
command. These commands cause the software to merge the incoming configuration into the current
candidate configuration. The example does not become active until you commit the candidate configuration.
xviii

If the example configuration contains the top level of the hierarchy (or multiple hierarchies), the example
isafull example. In this case, use the load merge command.
If the example configuration does not start at the top level of the hierarchy, the example is a snippet. In
this case, use the load merge relative command. These procedures are described in the following sections.
Merging a Full Example
To merge a full example, follow these steps:
1. From the HTML or PDF version of the manual, copy a configuration example into a text file, save the
file with a name, and copy the file to a directory on your routing platform.
For example, copy the following configuration to a file and name the file ex-script.conf. Copy the
ex-script.conf file to the /var/tmp directory on your routing platform.
system {
scripts {
commit {
file ex-script.xsl;
}
}
}
interfaces {
fxp0 {
disable;
unit 0 {
family inet {
address 10.0.0.1/24;
}
}
}
}
2. Merge the contents of the file into your routing platform configuration by issuing the load merge
configuration mode command:
[edit]
user@host# load merge /var/tmp/ex-script.conf
load complete
xix

Merging a Snippet
To merge a snippet, follow these steps:
1. From the HTML or PDF version of the manual, copy a configuration snippet into a text file, save the
file with a name, and copy the file to a directory on your routing platform.
For example, copy the following snippet to a file and name the file ex-script-snippet.conf. Copy the
ex-script-snippet.conf file to the /var/tmp directory on your routing platform.
commit {
file ex-script-snippet.xsl; }
2. Move to the hierarchy level that is relevant for this snippet by issuing the following configuration mode
command:
[edit]
user@host# edit system scripts
[edit system scripts]
3. Merge the contents of the file into your routing platform configuration by issuing the load merge
relative configuration mode command:
[edit system scripts]
user@host# load merge relative /var/tmp/ex-script-snippet.conf
load complete
For more information about the load command, see CLI Explorer.
Documentation Conventions
Table 1 on page xxi defines notice icons used in this guide.
xx