- play_arrow Overview
- play_arrow QFX3000-M QFabric System Overview
- QFabric System Overview
- Understanding the QFabric System Hardware Architecture
- Understanding QFX3000-M QFabric System Hardware Configurations
- Understanding the Director Group
- Understanding Routing Engines in the QFabric System
- Understanding Interconnect Devices
- Understanding Node Devices
- Understanding Node Groups
- play_arrow QFX3100 Overview
- QFX3100 Director Device Overview
- Field-Replaceable Units in a QFX3100 Director Device
- Understanding Redundancy of QFX3100 Director Device Components and Functionality
- Chassis Physical Specifications for a QFX3100 Director Device
- Front Panel of a QFX3100 Director Device
- Rear Panel of a QFX3100 Director Device
- Cooling System and Airflow in a QFX3100 Director Device
- Network Modules in a QFX3100 Director Device
- HDD Modules in a QFX3100 Director Device
- Fan Modules in a QFX3100 Director Device
- AC Power Supply in a QFX3100 Director Device
- play_arrow QFX3600-I Overview
- QFX3000-M Interconnect Devices Overview
- Field-Replaceable Units for QFX3600 and QFX3600-I Devices
- Understanding Redundancy of QFX3600 and QFX3600-I Components and Functionality
- Chassis Physical Specifications for QFX3600 and QFX3600-I Devices
- Front Panel of a QFX3600-I Interconnect Device
- Rear Panel of QFX3600 and QFX3600-I Devices
- Cooling System and Airflow for QFX3600 and QFX3600-I Devices
- AC Power Supply for a QFX3500, QFX3600, or QFX3600-I Device
- DC Power Supply for a QFX3500, QFX3600, or QFX3600-I Device
- Grounding Cable and Lug Specifications for QFX3600 and QFX3600-I Devices
- play_arrow QFX5100 Overview
- QFX5100 Device Hardware Overview
- QFX5100 Device Models
- Field-Replaceable Units in a QFX5100 Device
- Understanding Hardware Redundancy of QFX5100 Device Components and Functionality
- Chassis Physical Specifications for a QFX5100 Device
- Port Panel of QFX5100-48S and QFX5100-48SH Devices
- Port Panel of QFX5100-48T and QFX5100-48TH Devices
- Port Panel of a QFX5100-24Q Device
- Management Panel of a QFX5100 Device
- Cooling System and Airflow in a QFX5100 Device
- AC Power Supply for a QFX5100 Device
- DC Power Supply in a QFX5100 Device
- play_arrow QFX3600 Overview
- QFX3600 Device Overview
- Field-Replaceable Units for QFX3600 and QFX3600-I Devices
- Understanding Redundancy of QFX3600 and QFX3600-I Components and Functionality
- Chassis Physical Specifications for QFX3600 and QFX3600-I Devices
- Front Panel of a QFX3600 Device
- Rear Panel of QFX3600 and QFX3600-I Devices
- Cooling System and Airflow for QFX3600 and QFX3600-I Devices
- AC Power Supply for a QFX3500, QFX3600, or QFX3600-I Device
- DC Power Supply for a QFX3500, QFX3600, or QFX3600-I Device
- play_arrow QFX3500 Overview
- QFX3500 Device Overview
- Field-Replaceable Units in a QFX3500 Device
- Understanding Redundancy of QFX3500 Device Components and Functionality
- Chassis Physical Specifications for a QFX3500 Chassis
- Front Panel of a QFX3500 Device
- Rear Panel of a QFX3500 Device
- Cooling System and Airflow for a QFX3500 Device
- Management Board for a QFX3500 Device
- AC Power Supply for a QFX3500, QFX3600, or QFX3600-I Device
- DC Power Supply for a QFX3500, QFX3600, or QFX3600-I Device
- Grounding Cable and Lug Specifications for a QFX3500 Device
- play_arrow EX4300 Overview
- play_arrow EX4200 Overview
-
- play_arrow Planning
- play_arrow Site Preparation
- Planning a QFX3000-M QFabric System Deployment
- Site Preparation Checklist for a QFX3100 Director Device
- Site Preparation Checklist for a QFX5100 Device
- Site Preparation Checklist for a QFX3600 or QFX3600-I Device
- Site Preparation Checklist for a QFX3500 Device
- Site Preparation Checklist for EX4300 Switches
- Site Preparation Checklist for EX4200 Switches
- General Site Guidelines
- Site Electrical Wiring Guidelines
- Environmental Requirements and Specifications for a QFX3100 Director Device
- Environmental Requirements and Specifications for QFX3600 and QFX3600-I Devices
- Environmental Requirements and Specifications for a QFX3500 Device
- Environmental Requirements and Specifications for a QFX5100 Device
- Environmental Requirements and Specifications for EX Series Switches
- play_arrow Rack and Cabinet Requirements
- Rack Requirements for a QFX3100 Director Device
- Rack Requirements for a QFX5100 Device
- Rack Requirements for a QFX3600 or QFX3600-I Device
- Rack Requirements for a QFX3500 Device
- Rack Requirements for EX4300 Switches
- Rack Requirements for EX4200 Switches
- Cabinet Requirements for a QFX3100 Director Device
- Cabinet Requirements for a QFX5100 Device
- Cabinet Requirements for a QFX3600 or QFX3600-I Device
- Cabinet Requirements for a QFX3500 Device
- Cabinet Requirements for EX4300 Switches
- Cabinet Requirements for EX4200 Switches
- Clearance Requirements for Airflow and Hardware Maintenance for a QFX3100 Director Device
- Clearance Requirements for Airflow and Hardware Maintenance for a QFX5100 Device
- Clearance Requirements for Airflow and Hardware Maintenance for a QFX3600 or QFX3600-I Device
- Clearance Requirements for Airflow and Hardware Maintenance for a QFX3500 Device
- Clearance Requirements for Airflow and Hardware Maintenance for EX4300 Switches
- Clearance Requirements for Airflow and Hardware Maintenance for EX4200 Switches
- play_arrow Port and Interface Specifications
- USB Port Specifications for the QFX Series
- USB Port Specifications for an EX Series Switch
- Determining Transceiver Support for QFabric Systems
- Console Port Connector Pinouts for the QFX Series
- Console Port Connector Pinout Information
- Management Port Connector Pinouts for the QFX Series
- RJ-45 Management Port Connector Pinout Information
- Management Port Connector Pinout Information for an EX4200 Switch
- Network Module Port Connector Pinouts for a QFX3100 Director Device
- play_arrow Cable Specifications
- Cable Specifications for Copper-Based Control Plane Connections for the QFabric System
- Cable Specifications for QSFP+ and QSFP28 Transceivers
- Cable Specifications for Console and Management Connections for the QFX Series
- Understanding QFX Series Fiber-Optic Cable Signal Loss, Attenuation, and Dispersion
- Understanding EX Series Switches Fiber-Optic Cable Signal Loss, Attenuation, and Dispersion
- Calculating the Fiber-Optic Cable Power Budget for a QFX Series Device
- Calculating the Fiber-Optic Cable Power Margin for a QFX Series Device
- Calculating the EX Series Switch Fiber-Optic Cable Power Budget
- Calculating the EX Series Switch Fiber-Optic Cable Power Margin
- play_arrow Planning QFX3100 Power Requirements
- play_arrow Planning QFX5100 Power Requirements
- play_arrow Planning QFX3600 and QFX3600-I Power Requirements
- play_arrow Planning QFX3500 Power Requirements
- play_arrow Planning EX4300 Power Requirements
- play_arrow Planning EX4200 Power Requirements
- play_arrow Compliance
- Agency Approvals for the QFX Series
- Agency Approvals for EX Series Switches
- Compliance Statements for EMC Requirements for the QFX Series
- Compliance Statements for EMC Requirements for EX Series Switches
- Compliance Statements for Acoustic Noise for EX Series Switches
- Statements of Volatility for Juniper Network Devices
-
- play_arrow Safety
- play_arrow General Safety Information
- play_arrow Fire Safety Requirements
- play_arrow Installation and Maintenance Safety Information
- Installation Instructions Warning
- Chassis Lifting Guidelines for a QFX3100 Director Device
- Chassis Lifting Guidelines for a QFX3600 or QFX3600-I Device
- Chassis Lifting Guidelines for a QFX3500 Device
- Chassis Lifting Guidelines for a QFX5100 Device
- Chassis Lifting Guidelines for EX4300 Switches
- Chassis Lifting Guidelines for EX4200 Switches
- Restricted Access Warning
- Ramp Warning
- Rack-Mounting and Cabinet-Mounting Warnings
- Grounded Equipment Warning
- play_arrow Radiation and Laser Warnings
- play_arrow Maintenance and Operational Safety Warnings
- play_arrow Power and Electrical Safety Information
- General Electrical Safety Guidelines and Warnings
- Prevention of Electrostatic Discharge Damage
- Action to Take After an Electrical Accident
- AC Power Electrical Safety Guidelines
- AC Power Disconnection Warning
- DC Power Electrical Safety Guidelines
- DC Power Disconnection Warning
- DC Power Grounding Requirements and Warning
- DC Power Wiring Sequence Warning
- DC Power Wiring Terminations Warning
- Multiple Power Supplies Disconnection Warning
- TN Power Warning
-
- play_arrow Installation
- play_arrow Before You Begin
- play_arrow Installing a QFX3100 Director Device
- Installing and Connecting a QFX3100 Director Device
- Unpacking a QFX3100 Director Device
- Mounting a QFX3100 Director Device on Two Posts in a Rack or Cabinet
- Mounting a QFX3100 Director Device on Four Posts in a Rack or Cabinet
- Connecting AC Power to a QFX3100 Director Device
- Powering On a QFX3100 Director Device
- Connecting a QFX Series Device to a Management Console
- play_arrow Installing a QFX5100-24Q Interconnect Device or QFX5100 Node Device
- play_arrow Installing a QFX3600-I Interconnect Device or QFX3600 Node Device
- Installing and Connecting a QFX3600 or QFX3600-I Device
- Unpacking a QFX3600 or QFX3600-I Device
- Mounting a QFX3600 or QFX3600-I Device on Two Posts in a Rack or Cabinet
- Mounting a QFX3600 or QFX3600-I Device on Four Posts in a Rack or Cabinet
- Connecting Earth Ground to QFX3600 or QFX3600-I Devices
- Connecting AC Power to a QFX3500, QFX3600, or QFX3600-I Device
- Connecting DC Power to a QFX3500, QFX3600, or QFX3600-I Device
- Connecting a QFX Series Device to a Management Console
- play_arrow Installing a QFX3500 Node Device
- Installing and Connecting a QFX3500 Device
- Unpacking a QFX3500 Device
- Mounting a QFX3500 Device in a Rack or Cabinet
- Connecting Earth Ground to a QFX3500 Device
- Connecting AC Power to a QFX3500, QFX3600, or QFX3600-I Device
- Connecting DC Power to a QFX3500, QFX3600, or QFX3600-I Device
- Connecting a QFX Series Device to a Management Console
- play_arrow Cabling a Copper-Based Control Plane for the QFX3000-M QFabric System
- Interconnecting Two EX Series Switches for QFX3000-M QFabric System Control Plane Redundancy
- Connecting QFX3100 Director Devices in a Director Group
- Connecting QFX3100 Director Devices to a Copper-Based QFX3000-M QFabric System Control Plane Network
- Connecting a QFX3100 Director Device to a Network for Out-of-Band Management
- Connecting a QFX5100-24Q Interconnect Device to a Copper-Based QFX3000-M QFabric System Control Plane Network
- Connecting a QFX3600-I Interconnect Device to a Copper-Based QFX3000-M QFabric System Control Plane Network
- Connecting a QFX5100 Node Device to a Copper-Based QFX3000-M QFabric System Control Plane Network
- Connecting a QFX3600 Node Device to a Copper-Based QFX3000-M QFabric System Control Plane Network
- Connecting a QFX3500 Node Device to a Copper-Based QFX3000-M QFabric System Control Plane Network
- play_arrow Cabling a Fiber-Based Control Plane for the QFX3000-M QFabric System
- Interconnecting Two EX Series Switches for QFX3000-M QFabric System Control Plane Redundancy
- Connecting QFX3100 Director Devices in a Director Group
- Connecting QFX3100 Director Devices to a Fiber-Based QFX3000-M QFabric System Control Plane Network
- Connecting a QFX3100 Director Device to a Network for Out-of-Band Management
- Connecting a QFX5100-24Q Interconnect Device to a Fiber-Based QFX3000-M QFabric System Control Plane Network
- Connecting a QFX3600-I Interconnect Device to a Fiber-Based QFX3000-M QFabric System Control Plane Network
- Connecting a QFX5100 Node Device to a Fiber-Based QFX3000-M QFabric System Control Plane Network
- Connecting a QFX3600 Node Device to a Fiber-Based QFX3000-M QFabric System Control Plane Network
- Connecting a QFX3500 Node Device to a Fiber-Based QFX3000-M QFabric System Control Plane Network
- play_arrow Cabling the Data Plane for the QFX3000-M QFabric System
- Connecting a QFX5100 Node Device to a QFX3600-I Interconnect Device
- Connecting a QFX5100 Node Device to a QFX5100-24Q Interconnect Device
- Connecting a QFX3600 Node Device to a QFX3600-I Interconnect Device
- Connecting a QFX3600 Node Device to a QFX5100-24Q Interconnect Device
- Connecting a QFX3500 Node Device to a QFX3600-I Interconnect Device
- Connecting a QFX3500 Node Device to an QFX5100-24Q Interconnect Device
- play_arrow Performing the Initial Configuration
-
- play_arrow Troubleshooting
- play_arrow Knowledge Base
- play_arrow Restoring Junos OS
- play_arrow Restoring QFX3100 Volumes
- play_arrow Returning Hardware
- Returning a QFX3100 Director Device or Component for Repair or Replacement
- Returning a QFX5100 Device or Component for Repair or Replacement
- Returning a QFX3600 or QFX3600-I Device or Component for Repair or Replacement
- Returning a QFX3500 Device or Component for Repair or Replacement
- Returning an EX4300 Switch or Component for Repair or Replacement
- Returning an EX4200 Switch or Component for Repair or Replacement
- Locating the Serial Number on a QFX3100 Director Device or Component
- Locating the Serial Number on a QFX5100 Device or Component
- Locating the Serial Number on a QFX3600 or QFX3600-I Device or Component
- Locating the Serial Number on a QFX3500 Device or Component
- Locating the Serial Number on an EX4300 Switch or Component
- Locating the Serial Number on an EX4200 Switch or Component
- Packing a QFX3100 Director Device or Component for Shipping
- Packing a QFX5100 Device or Component for Shipping
- Packing a QFX3600 or QFX3600-I Device or Component for Shipping
- Packing a QFX3500 Device or Component for Shipping
- Packing an EX4300 Switch or Component for Shipping
- Packing an EX4200 Switch or Component for Shipping
- Contacting Customer Support to Obtain a Return Materials Authorization for a QFX Series Device or Component
- play_arrow Alarms and System Log Messages
-
- play_arrow Downloads
Chassis Status LEDs on a QFX3100 Director Device
The QFX3100 Director device has three chassis LEDs on the bottom left side of the front panel.
See Figure 1.

Table 1 describes the chassis LEDs on a QFX3100 Director device, their colors and states, and the status they indicate.
Table 1: Chassis LEDs on a QFX3100 Director Device
LED | Color | State | Description |
---|---|---|---|
Power | Unlit | Off | Device is powered off. |
Green | On steadily | Device is powered on. | |
Hard disk | Unlit | Off | Data is not being read from or written to the hard disk drive. |
Amber | Flickering | Data is being read from or written to the hard disk drive. | |
Alarm | Unlit | Off | QFX3100 Director device hardware has no major (red) alarm conditions. |
Red | On steadily | QFX3100 Director device hardware is hotter than the maximum high temperature threshold. | |
Fast blinking | At least one fan has failed. | ||
Slow blinking | A power supply is not supplying power to the QFX3100 Director device. |