Juniper QFX Series User Manual

Juniper QFX Series

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Figure 20: Location of Bottom and Side Fan Trays

g050100

Side fan trays

and air filters

4–7

Front cards 0–7

Side fan

trays and

air filters

0–3

Front panel

display and

bottom fan tray

ESD pointAir intake

45Copyright © 2012, Juniper Networks, Inc.

Chapter 3: QFX3008-I Overview

Table of Contents

Default Chapter3
- Table of Contents3
- About the Documentation23
Chapter 1 QFX3000 Qfabric Switch Overview27
Chapter 2 QFX3100 Overview27
- QFX3500 Overview27
- QFX3000 Qfabric Switch Overview29
- QFX3100 Overview47
Overview27
Chapter 3 QFX3008-I Overview59
- QFX3008-I Interconnect Device Overview59
  - Software60
  - Chassis Physical Specifications, Front Panel Display, and Midplane60
- QFX3008-I Overview61
Chapter 4 QFX3500 Overview85
- QFX3500 Device Overview85
  - Software86
  - Hardware86
- Field-Replaceable Units in a QFX3500 Device89
  - Figure 33: QSFP+ Uplink Port Locations89
  - Table 9: Frus in a QFX3500 Device89
  - Functionality90
- Chassis Physical Specifications for a QFX3500 Chassis90
- Table 10: Physical Specifications for the QFX3500 Device Chassis90
- Front Panel of a QFX3500 Device91
- Figure 34: QFX3500 Device Front Panel91
- Rear Panel of a QFX3500 Device92
- Figure 35: QFX3500 Device Front92
- Figure 36: QFX3500 Device Rear Panel93
- Cooling System and Airflow for a QFX3500 Device94
- Figure 37: Fan Tray for a QFX3500 Device94
- Figure 38: Management Board for a QFX3500 Device94
- Figure 39: FRU-Side-To-Port-Side Airflow through the QFX3500 Chassis95
- Table 11: Airflow Direction in QFX3500 Device Models95
- Figure 40: Port-Side-To-FRU-Side Airflow through the QFX3500 Chassis96
- Figure 41: Label Identifying Airflow Direction on Power Supply Handle96
- Management Board for a QFX3500 Device97
- Table 12: Airflow Direction in QFX3500 Device Frus97
- Figure 42: Management Board for a QFX3500 Device98
- AC Power Supply for a QFX3500 Device99
- Table 13: Airfow Direction in QFX3500 Management Boards99
- Figure 43: AC Power Supply in QFX3500 Devices100
- Figure 44: Label Identifying Airflow Direction on Power Supply Handle100
- Table 14: Airfow Direction in QFX3500 Power Supplies100
- DC Power Supply for a QFX3500 Device101
- Figure 45: DC Power Supply for a QFX3500 Device101
- Figure 46: DC Power Supply Faceplate for a QFX3500 Device102
- Figure 47: Label Identifying Airflow Direction on Power Supply Handle102
- Grounding Cable and Lug Specifications for a QFX3500 Device103
- Table 15: Airflow Direction in QFX3500 Device Power Supplies103
- Planning105
  - Port and Interface Specifications105
Chapter 5 Site Preparation107
- Planning a QFX3000-G Qfabric System Deployment107
- Site Preparation108
- Site Preparation Checklist for a QFX3100 Director Device109
- Table 16: Site Preparation Checklist109
- Site Preparation Checklist for a QFX3008-I Interconnect Device110
- Table 17: Site Preparation Checklist for a QFX3008-I Interconnect Device110
- Site Preparation Checklist for a QFX3500 Device112
- Table 18: Site Preparation Checklist112
- General Site Guidelines113
- Site Electrical Wiring Guidelines113
- Environmental Requirements and Specifications for the QFX3100 Director113
- Environmental Requirements and Specifications for a QFX3008-I Interconnect113
- Environmental Requirements and Specifications for the QFX3500 Device117
- Table 22: QFX3500 Device Environmental Tolerances117
Chapter 6 Rack and Cabinet Requirements119
- Rack Requirements for a QFX3100 Director Device119
- Table 23: Rack Requirements and Specifications for the QFX3100 Director120
- Rack Requirements for a QFX3008-I Interconnect Device121
- Rack and Cabinet Requirements121
- Table 24: Rack Requirements and Specifications for a QFX3008-I Interconnect121
- Rack Requirements for a QFX3500 Device122
- Table 25: Rack Requirements for the QFX3500 Device122
- Cabinet Requirements for a QFX3100 Director Device123
- Rack and Cabinet Requirements123
Chapter 7 Port and Interface Specifications131
- USB Port Specifications for the QFX Series131
- Console Port Connector Pinouts for the QFX Series132
- Table 29: Console Port Connector Pinouts for the QFX Series132
- Management Port Connector Pinouts for the QFX Series133
- Network Module Port Connector Pinouts for a QFX3100 Director Device133
- Interface Specifications for Data Plane Connections for the Qfabric System153
- Table 39: Interface Support for 40-Gigabit Ethernet QSFP+ Transceivers in QFX3000 Qfabric Systems154
Chapter 8 Cable Specifications155
- Cable Specifications for Control Plane Connections for the QFX Series155
- Cable Specifications for Console and Management Connections for the QFX155
- Understanding QFX Series Fiber-Optic Cable Signal Loss, Attenuation, and Dispersion155
- Calculating the Fiber-Optic Cable Power Budget for a QFX Series Device158
- Calculating the Fiber-Optic Cable Power Margin for a QFX Series Device158
- Table 42: Estimated Values for Factors Causing Link Loss159
Chapter 9 Planning QFX3100 Power Requirements161
- AC Power Specifications for a QFX3100 Director Device161
- AC Power Cord Specifications for a QFX3100 Director Device161
- Table 43: AC Power Specifications for a QFX3100 Director Device161
- Figure 53: AC Plug Types162
- Table 44: AC Power Cord Specifications for a QFX3100 Director Device162
Chapter 10 Planning QFX3008-I Power Requirements163
- AC Power Specifications for a QFX3008-I Interconnect Device with Single-Phase163
  - Wiring Trays163
  - Table 45: AC Power Specifications for a QFX3008-I Interconnect Device with Single-Phase Wiring Trays163
- AC Power Specifications for a QFX3008-I Interconnect Device with Three-Phase164
- AC Power Specifications for a QFX3008-I Interconnect Device with Three-Phase165
- Power Requirements for a QFX3008-I Interconnect Device165
- AC Power Cord Specifications for a QFX3008-I Interconnect Device with Single-Phase Wiring Trays165
- Table 48: QFX3008-I Interconnect Device Component Power Requirements165
- Table 49: AC Power Cord Specifications for a Single-Phase Wiring Tray166
- AC Power Cord Specifications for a QFX3008-I Interconnect Device with Three-Phase Delta Wiring Trays167
- AC Power Cord Specifications for a QFX3008-I Interconnect Device with Three-Phase Wye Wiring Trays168
- Table 50: Three-Phase Delta AC Power Cord Specifications168
- Calculating Power Requirements for a QFX3008-I Interconnect Device169
Chapter 11 Planning QFX35000 Power Requirements173
- AC Power Specifications for a QFX3500 Device173
- AC Power Cord Specifications for a QFX3500 Device173
- Table 52: AC Power Specifications for a QFX3500 Device173
- Figure 54: AC Plug Types174
- Table 53: AC Power Cord Specifications174
- DC Power Specifications for a QFX3500 Device175
- Table 54: DC Power Specifications for a QFX3500 Device175
Chapter 12 Compliance177
- Agency Approvals for the QFX Series177
- Compliance Statements for EMC Requirements for the QFX Series178
- Declaration of Conformity for QFX Series Devices182
Chapter 13 General Safety Information187
- General Safety Guidelines and Warnings187
- Definitions of Safety Warning Levels188
- Fire Safety Requirements190
- Qualified Personnel Warning191
- Warning Statement for Norway and Sweden192
Chapter 14 Radiation and Laser Warnings193
- Radiation from Open Port Apertures Warning193
- Laser and LED Safety Guidelines and Warnings for the QFX Series194
Chapter 15 Installation and Maintenance Safety Information199
- Installation Instructions Warning199
- Chassis Lifting Guidelines for a QFX3100 Director Device201
- Chassis Lifting Guidelines for a QFX3008-I Interconnect Device201
- Chassis Lifting Guidelines for a QFX3500 Device202
- Restricted Access Warning203
- Ramp Warning204
- Rack-Mounting and Cabinet-Mounting Warnings205
- Grounded Equipment Warning209
- Maintenance and Operational Safety Guidelines and Warnings210
Chapter 16 Power and Electrical Safety Information217
- General Electrical Safety Guidelines and Warnings217
- Prevention of Electrostatic Discharge Damage218
- Figure 55: Place a Component into an Antistatic Bag219
- AC Power Electrical Safety Guidelines220
- AC Power Disconnection Warning222
- DC Power Electrical Safety Guidelines223
- DC Power Disconnection Warning224
- DC Power Grounding Requirements and Warning226
- DC Power Wiring Sequence Warning227
- DC Power Wiring Terminations Warning228
- Multiple Power Supplies Disconnection Warning230
- TN Power Warning230
- Action to Take after an Electrical Accident231
Chapter 17 Before You Begin235
- QFX3000-G Qfabric System Installation Overview235
Chapter 18 Installing a QFX3100 Director Device239
- Installing and Connecting a QFX3100 Director Device239
- Unpacking a QFX3100 Director Device239
- Figure 56: Unpacking a QFX3100 Director Device240
- Table 55: Inventory of Components Provided with a QFX3100 Director240
- Mounting a QFX3100 Director Device on Two Posts in a Rack or Cabinet241
- Figure 57: Mounting the QFX3100 Director Device on Two Posts in a Rack242
- Mounting a QFX3100 Director Device on Four Posts in a Rack or Cabinet243
- Connecting AC Power to a QFX3100 Director Device244
- Figure 58: Mounting a QFX3100 Director Device on Four Posts in a Rack or244
- Powering on a QFX3100 Director Device246
- Figure 59: Connecting an AC Power Cord to an AC Power Supply in a QFX3100 Director Device246
Chapter 19 Installing a QFX3008-I Interconnect Device249
- Installing and Connecting a QFX3008-I Interconnect Device249
- Unpacking a QFX3008-I Interconnect Device250
- Parts Inventory (Packing List) for a QFX3008-I Interconnect Device251
- Table 56: Parts List for QFX3008-I Interconnect Device Configurations251
- Table 57: QFX3008-I Interconnect Device Accessory Kit Part Contents252
- Table 58: QFX3008-I Interconnect Device Accessory Kit Document252
- Installing QFX3008-I Interconnect Device Mounting Hardware on Four-Post Racks or Cabinets253
- Installing QFX3008-I Interconnect Device Mounting Hardware on Two-Post257
- Mounting a QFX3008-I Interconnect Device on a Rack or Cabinet Using a Mechanical Lift260
- Connecting Earth Ground to a QFX3008-I Interconnect Device263
- Figure 62: Installing a QFX3008-I Interconnect Device in a Four-Post Rack263
- Connecting AC Power to a QFX3008-I Interconnect Device with Single-Phase265
  - Wiring Trays265
  - Figure 63: Connecting a Grounding Cable to a QFX3008-I Interconnect265
- Preparing Delta and Wye Three-Phase Power Cords267
- Connecting AC Power to a QFX3008-I Interconnect Device with Three-Phase Wye Wiring Trays276
- Figure 71: Connecting Power to the Three-Phase Wye Wiring Tray278
- Powering on a QFX3008-I Interconnect Device279
Chapter 21 Device281
- Installing the Cable Management System on a QFX3008-I Interconnect281
- Installing the Lockable Front Doors on a QFX3008-I Interconnect Device282
- Figure 72: Installing the Cable Management System on a QFX3008-I Interconnect282
- Figure 73: Installing the Lockable Front Doors on a QFX3008-I Interconnect283
- Installing a QFX3500 Node Device285
- Installing and Connecting a QFX3500 Device285
- Unpacking a QFX3500 Device286
- Table 62: Inventory of Components Supplied with a QFX3500 Device286
- Mounting a QFX3500 Device in a Rack or Cabinet287
- Figure 74: Installing an Installation Blade in a Rack288
- Figure 75: Mounting the QFX3500 Device on Four Posts in a Rack289
- Connecting Earth Ground to a QFX3500 Device290
- Connecting AC Power to a QFX3500 Device291
- Figure 76: Connecting a Grounding Cable to a QFX3500 Device291
- Connecting DC Power to a QFX3500 Device293
- Figure 77: Connecting an AC Power Cord to an AC Power Supply in a QFX3500293
- Figure 78: DC Power Supply Faceplate for a QFX3500 Device296
- Figure 79: Securing Ring Lugs to the Terminals on the DC Power Supply296
Chapter 20 Installing QFX3008-I Optional Components281
Chapter 22 Cabling the Qfabric Switch297
- Interconnecting Two Virtual Chassis for Qfabric System Control Plane297
- Connecting QFX3100 Director Devices in a Director Group300
- Figure 82: QFX3100 Director Group Control Plane Connections300
- Connecting QFX3100 Director Devices to the Control Plane Network301
- Connecting a QFX3008-I Interconnect Device to the Control Plane Network304
- Figure 84: QFX3008-I Interconnect Device Control Plane Connections305
- Connecting a QFX3500 Node Device to the Control Plane Network308
- Figure 85: QFX3500 Node Device Control Plane Connections308
- Table 66: QFX3500 Node Device-To-Virtual Chassis Control Plane Port309
- Connecting a QFX3500 Node Device to a QFX3008-I Interconnect Device310
- Connecting a QFX Series Device to a Management Console311
- Figure 86: Connecting a QFX Series Device to a Management Console through311
- Figure 87: Connecting a QFX Series Device Directly to a Management312
Chapter 23 Performing the Initial Configuration313
- Configuring the Qfabric System Initial Setup on a QFX3100 Director Group313
  - Initial Setup314
  - Restoring a Backup Configuration317
Chapter 24 Removing or Replacing a Device321
- Powering off a QFX3100 Director Device321
- Powering off a QFX3008-I Interconnect Device322
- Powering off a QFX3500 Device324
- Removing a QFX3100 Director Device from a Rack or Cabinet325
- Removing a QFX3008-I Interconnect Device from a Rack or Cabinet326
  - Removing a QFX3500 Device from a Rack or Cabinet328
  - Replacing a QFX3100 Director Device in a QFX3000-G Qfabric System329
    - System330
    - System332
Chapter 25 Replacing QFX3100 Components335
- Installing and Removing QFX3100 Director Device Hardware Components335
- Removing a Power Supply from a QFX3100 Director Device336
- Installing a Power Supply in a QFX3100 Director Device337
- Figure 88: Removing a Power Supply from a QFX3100 Director Device337
- Removing a Fan Module from a QFX3100 Director Device338
- Figure 89: Installing a Power Supply in a QFX3100 Director Device338
- Figure 90: Removing a Fan Module from a QFX3100 Director Device339
- Installing a Fan Module in a QFX3100 Director Device340
- Figure 91: Installing a Fan Module in a QFX3100 Director Device340
- Removing a Network Module from a QFX3100 Director Device341
- Installing a Network Module in a QFX3100 Director Device342
- Figure 92: Removing a Network Module from a QFX3100 Director Device342
- Removing an HDD Module from a QFX3100 Director Device343
- Figure 93: Installing a Network Module in a QFX3100 Director Device343
- Installing an HDD Module in a QFX3100 Director Device344
- Figure 94: Removing an HDD Module from a QFX3100 Director Device344
- Figure 95: Installing an HDD Module in a QFX3100 Director Device345
Chapter 26 Replacing QFX3008-I Components347
Chapter 27 Components347
- Installing and Removing QFX3008-I Interconnect Device Hardware347
- Removing an AC Power Supply from a QFX3008-I Interconnect Device349
- Installing an AC Power Supply in a QFX3008-I Interconnect Device350
- Figure 96: Removing an AC Power Supply from a QFX3008-I Interconnect350
- Removing a Wiring Tray from a QFX3008-I Interconnect Device352
- Figure 97: Installing an AC Power Supply in a QFX3008-I Interconnect352
- Figure 98: Removing a Wiring Tray from a QFX3008-I Interconnect Device353
- Installing a Wiring Tray in a QFX3008-I Interconnect Device354
- Removing a Bottom Fan Tray and Front Panel Display from a QFX3008-I Interconnect Device355
- Figure 99: Installing a Wiring Tray in a QFX3008-I Interconnect Device355
- Installing a Bottom Fan Tray and Front Panel Display in a QFX3008-I Interconnect Device357
- Figure 100: Removing a Bottom Front Fan Tray from a QFX3008-I Interconnect357
- Removing a Side Fan Tray from a QFX3008-I Interconnect Device358
- Figure 101: Installing a Bottom Fan Tray in a QFX3008-I Interconnect Device358
- Installing a Side Fan Tray in a QFX3008-I Interconnect Device360
- Figure 102: Removing a Side Fan Tray from a QFX3008-I Interconnect360
- Figure 103: Installing a Side Fan Tray in a QFX3008-I Interconnect Device361
- Removing a Top Fan Tray from a QFX3008-I Interconnect Device362
- Installing a Top Fan Tray in a QFX3008-I Interconnect Device363
- Figure 104: Removing a Top Fan Tray from a QFX3008-I Interconnect Device363
- Removing a Bottom Air Filter from a QFX3008-I Interconnect Device364
- Figure 105: Installing a Top Fan Tray in a QFX3008-I Interconnect Device364
- Figure 106: Removing a Bottom Air Filter from a QFX3008-I Interconnect365
- Installing a Bottom Air Filter in a QFX3008-I Interconnect Device366
- Removing a Side Air Filter from a QFX3008-I Interconnect Device367
- Figure 107: Installing a Bottom Air Filter in a QFX3008-I Interconnect Device367
- Figure 108: Removing a Side Fan Tray from a QFX3008-I Interconnect368
- Installing a Side Air Filter in a QFX3008-I Interconnect Device369
- Figure 109: Removing a Side Air Filter from a QFX3008-I Interconnect Device369
- Figure 110: Installing a Side Air Filter in a QFX3008-I Interconnect Device Side370
- Taking a Control Board Offline in a QFX3008-I Interconnect Device371
  - Figure 111: Installing a Side Fan Tray in a QFX3008-I Interconnect Device371
  - Taking a Master Control Board Offline372
  - Taking a Backup Control Board Offline373
- Removing a Control Board from a QFX3008-I Interconnect Device373
- Installing a Control Board in a QFX3008-I Interconnect Device375
  - Device375
  - Figure 113: Installing a Control Board in a QFX3008-I Interconnect Device377
  - Device379
- Installing a 16-Port QSFP+ Front Card in a QFX3008-I Interconnect Device379
- Figure 114: Removing a 16-Port Front Card from a QFX3008-I Interconnect379
- Taking the Rear Card Offline in a QFX3008-I Interconnect Device381
- Figure 115: Installing 16-Port QSFP+ Front Card in a QFX3008-I Interconnect381
- Removing a Rear Card from a QFX3008-I Interconnect Device382
- Figure 116: Removing a Rear Card from a QFX3008-I Interconnect Device383
- Installing a Rear Card in a QFX3008-I Interconnect Device384
- Figure 117: Installing a Rear Card in a QFX3008-I Interconnect Device385
- Replacing QFX3500 Components387
  - Installing and Removing QFX3500 Device Hardware Components387
  - Installing a Power Supply in a QFX3500 Device388
  - Figure 118: Installing a Power Supply in a QFX3500 Device389
  - Removing a Power Supply from a QFX3500 Device390
  - Installing a Fan Tray in a QFX3500 Device391
  - Figure 119: Removing a Power Supply from a QFX3500 Device391
  - Figure 120: Installing a Fan Tray in a QFX3500 Device392
  - Removing a Fan Tray from a QFX3500 Device393
  - Installing a Management Board in a QFX3500 Device394
  - Figure 121: Removing a Fan Tray from a QFX3500 Device394
  - Removing a Management Board from a QFX3500 Device395
  - Figure 122: Installing a Management Board in a QFX3500 Device395
  - Figure 123: Removing a Management Board from a QFX3500 Device396
Chapter 28 Replacing Transceivers and Fiber-Optic Cables399
- Removing a Transceiver from a QFX Series Device399
- Installing a Transceiver in a QFX Series Device400
- Disconnecting a Fiber-Optic Cable from a QFX Series Device402
- Figure 124: Installing an SFP Transceiver in a QFX Series Device402
- Figure 125: Installing a QSFP+ Transceiver in a QFX Series Device402
- Connecting a Fiber-Optic Cable to a QFX Series Device403
Chapter 29 Routine Maintenance405
- Maintaining the Air Filters in a QFX3008-I Interconnect Device405
- Maintaining Fiber-Optic Cables in a QFX Series Device405
Chapter 30 Viewing QFX3100 System Information407
- Chassis Status Leds on a QFX3100 Director Device407
- Figure 126: Chassis Leds407
- Table 67: Chassis Leds on a QFX3100 Director Device407
- Management Port Leds on a QFX3100 Director Device408
- Figure 127: Leds on the Management Port on a QFX3100 Director Device408
- Network Module Port Leds on a QFX3100 Director Device409
- Figure 128: Network Module Port Leds on a QFX3100 Director Device409
- Table 68: Link/Activity LED on the Management Port on a QFX3100 Director409
- AC Power Supply LED on a QFX3100 Director Device410
- Figure 129: AC Power Supply Leds on a QFX3100 Director Device410
- Table 69: Network Module Port Leds on a QFX3100 Director Device410
- Table 70: Power Supply LED on a QFX3100 Director Device411
Chapter 31 Viewing QFX3008-I System Information413
- Chassis Status Leds on a QFX3008-I Interconnect Device413
- Figure 130: Chassis Status Leds413
- Table 71: Chassis Status Leds on a QFX3008-I Interconnect Device414
- Control Board Leds on a QFX3008-I Interconnect Device415
- Figure 131: Control Board Leds on a QFX3008-I Interconnect Device415
- Table 72: Control Board Leds on a QFX3008-I Interconnect Device416
- Table 73: Control Board SFP+ Port Leds on a QFX3008-I Interconnect416
- 16-Port QSFP+ Front Card Leds on a QFX3008-I Interconnect Device417
- Figure 132: 16-Port QSFP+ Front Card Leds on a QFX3008-I Interconnect417
- Table 74: 16-Port QSFP+ Front Card Leds on a QFX3008-I Interconnect418
- Table 75: 16-Port QSFP+ Front Card Port Leds on a QFX3008-I Interconnect418
- Rear Card Leds on a QFX3008-I Interconnect Device419
- Figure 133: Rear Card Leds on a QFX3008-I Interconnect Device419
- Table 76: Rear Card Leds on a QFX3008-I Interconnect Device419
- AC Power Supply Leds on a QFX3008-I Interconnect Device420
- Figure 134: AC Power Supply Leds on a QFX3008-I Interconnect Device420
- Table 77: AC Power Supply Leds on a QFX3008-I Interconnect Device420
- Wiring Tray Leds on a QFX3008-I Interconnect Device421
- Figure 135: AC Single-Phase Wiring Tray Leds on a QFX3008-I Interconnect421
- Figure 136: AC Three-Phase Wiring Tray Leds on a QFX3008-I Interconnect422
- Table 78: AC Wiring Tray Leds on a QFX3008-I Interconnect Device422
Chapter 32 Viewing QFX3500 System Information423
- Chassis Status Leds on a QFX3500 Device423
- Figure 137: Chassis Status Leds on a QFX3500 Device423
- Management Port Leds on a QFX3500 Device424
- Table 79: Chassis Status Leds on a QFX3500 Device424
- Access Port and Uplink Port Leds on a QFX3500 Device425
- Figure 138: Management Port Leds on a QFX3500 Device425
- Table 80: Management Port Leds on a QFX3500 Device425
- Figure 139: Leds on the SFP+ Access Ports426
- Figure 140: Leds on the QSFP+ Uplink Ports426
- Table 81: Network Port Leds on SFP+ Access Ports on a QFX3500 Device426
- Fan Tray LED on a QFX3500 Device427
- Figure 141: Fan Tray LED in a QFX3500 Device427
- Table 82: Uplink Port Leds on QSFP+ Uplink Ports on a QFX3500 Device427
- AC Power Supply Leds on a QFX3500 Device428
- Figure 142: Power Supply Leds in a QFX3500 Device428
- Table 83: Fan Tray LED in a QFX3500 Device428
- Table 84: AC Power Supply Leds in QFX3500 Devices428
- DC Power Supply Leds on a QFX3500 Device429
- Figure 143: DC Power Supply Faceplate on a QFX3500 Device429
- Table 85: DC Power Supply Leds on a QFX3500 Device429
- Troubleshooting431
Chapter 33 Restoring Junos os433
- Creating an Emergency Boot Device for a QFX Series Device433
- Performing a Recovery Installation on a QFX3500 Device and QFX3008-I Interconnect Device435
- Performing a Qfabric Switch Recovery Installation on the Director Group436
  - Performing a Recovery Installation Using a Juniper Networks External USB Flash Drive with Preloaded Software437
    - USB Flash Drive441
- Performing a Recovery Installation of the Director Group446
Chapter 34 Returning Hardware449
- Replacement449
- Locating the Serial Number on a QFX3100 Director Device or Component450
- Packing a QFX3100 Director Device or Component for Shipping451
- Packing a QFX3008-I Interconnect Device or Component for Shipping454
  - Packing a QFX3008-I Interconnect Device for Shipping455
  - Packing QFX3008-I Interconnect Device Components for Shipping456
- Returning a QFX3500 Device or Component for Repair or Replacement456
- Locating the Serial Number on a QFX3500 Device or Component457
- Packing a QFX3500 Device or Component for Shipping458
- Contacting Customer Support to Obtain a Return Materials Authorization for a QFX Series Device or Component461
Chapter 35 Alarms and System Log Messages463
- Understanding Alarms463
- Table 86: Alarm Terms and Definitions463
- Chassis Alarm Messages on a QFX3008-I Interconnect Device464
- Table 87: QFX3500 Chassis Alarm Messages465
- Chassis Alarm Messages on a QFX3500 Device468
- Table 88: QFX3500 Chassis Alarm Messages469
- Interface Alarm Messages471

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Hardware Guide176 pages

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Juniper QFX Series Specifications

General

Category	Switch
Series	QFX
Form Factor	1U, 2U, and modular chassis options
Power Supply	Redundant, hot-swappable power supplies
Cooling	hot-swappable fans
Virtual Chassis	Supported on certain models
Typical Use	Data center, cloud
Operating System	Junos OS
Management	CLI
Key Features	High performance, low latency, automation
Latency	Sub-microsecond latency
Port Density	Varies by model (e.g., QFX5100: up to 48x10GbE + 6x40GbE)

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