1. Introduction
This manual provides essential information for the installation, operation, and maintenance of your Juniper Networks QFX3500-48S4Q switch. Please read this manual thoroughly before using the device to ensure proper functionality and safety.
2. Safety Information
Always observe the following safety precautions:
- Ensure proper grounding before connecting power.
- Do not operate the switch in wet or excessively humid environments.
- Use only the specified power supply.
- Avoid blocking ventilation openings to prevent overheating.
- Refer all servicing to qualified personnel.
3. Product Overview
The Juniper Networks QFX3500-48S4Q is a high-performance, 48-port SFP+/SFP and 4-port QSFP switch designed for data center and enterprise environments. It supports high-density 10 Gigabit Ethernet and 40 Gigabit Ethernet connectivity, offering flexible deployment options.
Figure 1: Front Panel of QFX3500-48S4Q Switch. This image displays the front of the Juniper Networks QFX3500-48S4Q switch, highlighting its 48 SFP/SFP+ ports for 10 Gigabit Ethernet, 4 QSFP ports for 40 Gigabit Ethernet, and the integrated power supply and fan modules on either side. The central display shows status indicators and the Juniper logo.
3.1 Key Features
- 48 SFP/SFP+ ports for 10GbE connectivity.
- 4 QSFP ports for 40GbE connectivity.
- High-performance switching capabilities.
- Airflow In design for efficient cooling.
4. Setup and Installation
4.1 Unpacking the Switch
Carefully remove the switch from its packaging. Verify that all components listed in the packing list are present and undamaged. Report any missing or damaged items to your supplier immediately.
4.2 Rack Mounting
The QFX3500-48S4Q is designed for standard 19-inch rack mounting. Use the provided rack-mount kit and follow these steps:
- Attach the mounting brackets to the sides of the switch using the supplied screws.
- Secure the switch into the rack using appropriate rack screws.
- Ensure adequate space for airflow around the switch.
4.3 Power Connection
Connect the power cord(s) to the power supply unit(s) at the rear of the switch and then to a grounded AC power outlet. The switch supports redundant power supplies for enhanced reliability.
4.4 Initial Configuration
Connect a console cable to the console port on the front panel. Use a terminal emulator (e.g., PuTTY, Tera Term) with the following settings:
- Baud rate: 9600
- Data bits: 8
- Parity: None
- Stop bits: 1
- Flow control: None
Follow the on-screen prompts to perform initial setup, including setting the root password and basic network parameters.
5. Operating the Switch
5.1 Powering On/Off
To power on, ensure power cords are connected. The switch will automatically begin its boot sequence. To power off, disconnect the power cords. For graceful shutdown, use the appropriate command-line interface (CLI) commands.
5.2 Connecting Devices
Connect network devices (servers, other switches) to the SFP/SFP+ ports using compatible transceivers and fiber optic cables, or to the QSFP ports for 40GbE connections. Ensure proper cable types are used for optimal performance.
5.3 Status Indicators
Monitor the LED indicators on the front panel for system status, port activity, and power status. Refer to the official Juniper Networks documentation for a detailed explanation of each LED.
6. Maintenance
6.1 Cleaning
Periodically clean the exterior of the switch with a soft, dry cloth. Ensure ventilation openings are free from dust and debris. Do not use liquid cleaners directly on the device.
6.2 Firmware Updates
Regularly check the Juniper Networks support website for the latest firmware updates. Applying updates can improve performance, add new features, and address security vulnerabilities. Follow the provided instructions carefully when performing firmware upgrades.
6.3 Fan and Power Supply Replacement
The QFX3500-48S4Q features hot-swappable fan modules and power supplies. In case of a failure, these components can be replaced without powering down the entire switch. Consult the Juniper Networks hardware guide for detailed replacement procedures.
7. Troubleshooting
7.1 No Power
- Verify power cords are securely connected to both the switch and the power outlet.
- Check the power outlet for functionality.
- Inspect power supply LEDs for error indications.
7.2 Port Link Issues
- Ensure correct transceiver and cable types are used for the port.
- Check cable integrity and connections.
- Verify port configuration (speed, duplex) on both ends of the link.
7.3 System Performance Degradation
- Check CPU and memory utilization via the CLI.
- Ensure adequate ventilation and operating temperature.
- Review system logs for error messages or warnings.
For advanced troubleshooting, consult the Juniper Networks technical documentation or contact support.
8. Specifications
| Feature | Description |
|---|---|
| Model | QFX3500-48S4Q |
| Ports | 48 x SFP+/SFP, 4 x QSFP |
| Connectivity Protocol | X-10 (Note: This may be a generic placeholder; actual protocols are Ethernet standards) |
| Mounting Type | Wall Mount (Typically rack-mount for this type of switch) |
| International Protection Rating | IP00 |
| Manufacturer | JUNIPER |
| UPC | 649661984948 |
Note: Specifications are subject to change without notice. For the most current information, refer to the official Juniper Networks product documentation.
9. Warranty and Support
This product is typically covered by a manufacturer's warranty. For specific warranty terms and conditions, please refer to the documentation provided with your purchase or visit the official Juniper Networks website. For technical support, product registration, or additional resources, please visit the Juniper Networks support portal.
For products purchased as "Amazon Renewed," please refer to the Amazon Renewed Guarantee for return and replacement policies.
