Juniper QFX5120-48Y-AFO2 Network Switch User Manual

1. Introducció

This manual provides essential information for the installation, operation, and maintenance of the Juniper QFX5120-48Y-AFO2 network switch. This high-performance switch is designed for data center and enterprise environments, offering 48 ports of 25 Gigabit Ethernet and 8 ports of 100 Gigabit Ethernet, along with front-to-back airflow for efficient cooling.

Si us plau, llegiu atentament aquest manual abans d'intentar instal·lar o fer funcionar el dispositiu per garantir-ne el funcionament i la seguretat adequats.

2. Què hi ha a la caixa

Verifiqueu que tots els components siguin presents i no estiguin danyats en desembalar-los:

• 1x Juniper QFX5120-48Y-AFO2 Network Switch
• 2x Power Supply Units (PSU)
• 1x Rack Mount Kit (Note: Rails Kit not included with this renewed product)
• 2x cables d'alimentació
• 1 cable de consola

3. Configuració

3.1 Instal·lació física

The Juniper QFX5120-48Y-AFO2 switch is designed for rack mounting. Ensure the rack is stable and has adequate space for ventilation.

1. Muntatge en bastidor: Attach the provided rack mount brackets to the sides of the switch using the screws included with the kit. Secure the switch into a standard 19-inch equipment rack. Ensure proper alignment and support.
2. Airflow Considerations: This model features front-to-back airflow. Ensure that the rack environment supports this airflow direction to prevent overheating. Cool air enters from the front and exits from the rear.

3.2 Connexió d'alimentació

The switch comes with dual power supply units for redundancy.

1. Insert both power supply units into their respective slots at the rear of the switch.
2. Connect the provided power cords to the PSUs and then to a grounded AC power source.
3. Assegureu-vos que la font d'alimentació compleixi amb el voltage and current requirements specified in the 'Specifications' section.

3.3 Connexions de xarxa

Connect network cables to the appropriate ports on the front panel.

This image displays the front panel of the Juniper QFX5120-48Y-AFO2 switch. It features 48 small form-factor pluggable (SFP28) ports for 25 Gigabit Ethernet connections, arranged in two rows. To the right, there are 8 larger quad small form-factor pluggable (QSFP28) ports for 100 Gigabit Ethernet connections. The design indicates front-to-back airflow, crucial for cooling in data center environments.

• Ports 25G: Use SFP28 transceivers and compatible fiber optic cables for 25 Gigabit Ethernet connections.
• Ports 100G: Use QSFP28 transceivers and compatible fiber optic cables for 100 Gigabit Ethernet connections.

3.4 Console Connection

For initial configuration and management, connect a computer to the console port using the provided console cable.

• Connect one end of the console cable to the console port on the switch.
• Connect the other end to a serial port or USB-to-serial adapter on your computer.
• Configureu el vostre programari d'emulació de terminal (per exemple, PuTTY, Tera Term) amb els paràmetres següents: 9600 baud, 8 bits de dades, sense paritat, 1 bit d'aturada, sense control de flux.

4. Instruccions de funcionament

4.1 Encès

Once all physical connections are secure, the switch will power on automatically when connected to a power source. Observe the system status LEDs for boot-up progress.

4.2 Configuració inicial

Access the switch via the console port for initial setup, including IP address assignment, management credentials, and basic network settings. Refer to Juniper's official documentation for detailed Junos OS configuration guides.

4.3 Indicadors d'estat (LED)

The front panel features various LEDs to indicate the operational status of the switch and its ports. Consult the official Juniper documentation for a complete description of LED behaviors and their meanings.

• LED d'estat del sistema: Indicate power, alarm, and system health.
• LED del port: Indicate link status, activity, and speed for each network port.

5. Manteniment

5.1 Condicions ambientals

Maintain the operating environment within specified temperature and humidity ranges to ensure optimal performance and longevity of the switch. Ensure proper airflow around the unit.

5.2 Neteja

Periodically clean the exterior of the switch with a soft, dry, lint-free cloth. Do not use liquid or aerosol cleaners directly on the device. Ensure ventilation openings are free from dust and obstructions.

5.3 actualitzacions de microprogramari

Regularly check for and apply firmware (Junos OS) updates from Juniper Networks. Firmware updates often include performance enhancements, security patches, and bug fixes. Follow Juniper's recommended procedures for software upgrades.

6. Solució De Problemes

This section provides basic troubleshooting steps for common issues. For more complex problems, refer to Juniper's official support documentation or contact technical support.

6.1 Sense poder

• Verify that power cords are securely connected to both the switch PSUs and the power outlets.
• Check the power source (outlet, PDU) for functionality.
• Ensure the power supply units are fully seated in their bays.

6.2 Sense enllaç al port

• Check the network cable for damage and ensure it is properly connected at both ends.
• Verify that the transceiver (SFP28/QSFP28) is correctly inserted and compatible.
• Assegureu-vos que el dispositiu connectat estigui encès i configurat correctament.
• Check the port configuration on the switch (e.g., enabled, speed, duplex).

6.3 Problemes d'accés a la consola

• Verify the console cable connection.
• Confirm that your terminal emulation software settings (baud rate, data bits, parity, stop bits, flow control) match those specified in Section 3.4.
• Assegureu-vos que heu seleccionat el port COM correcte a l'ordinador.

7. Especificacions

8. Garantia i Suport

This product is offered as a renewed item. For specific warranty details and support options, please refer to the terms provided by the seller, Amazon Renewed, at the time of purchase. General technical support and documentation for Juniper products can be found on the official Juniper Networks weblloc.

For assistance with this renewed product, please contact the Amazon Renewed seller directly or refer to your purchase documentation.