Manual do Usuário do Switch Ethernet Juniper Networks EX3400-48P

1. Introdução

This manual provides essential information for the installation, operation, maintenance, and troubleshooting of your Juniper Networks EX3400-48P Ethernet Switch. The EX3400-48P is designed to deliver a high-performance, flexible, and cost-effective solution for demanding data, voice, and video enterprise access environments. It supports Juniper Networks Virtual Chassis technology for simplified network operations.

2. Informações de segurança

Please read and understand all safety instructions before installing or operating the device. Failure to follow these guidelines may result in injury or damage to the equipment.

• Garanta o aterramento adequado do equipamento.
• Do not operate the switch in wet or damp condições.
• Use only the power supply provided or approved by Juniper Networks.
• Evite bloquear as aberturas de ventilação para evitar superaquecimento.
• Refer to qualified service personnel for any servicing not described in this manual.

3. Produto acabadoview

The Juniper Networks EX3400-48P is a 48-port Power over Ethernet (PoE+) capable Ethernet switch. It features a compact design suitable for rack mounting and offers various connectivity options.

3.1. Componentes Físicos

Figura 1: Angulado view of the Juniper EX3400-48P Ethernet Switch, showing the top and front panels with the Juniper Networks logo.

Figura 2: Frente view of the EX3400-48P switch, highlighting the 48 Ethernet ports, uplink ports, and status LEDs.

Figura 3: Traseira view of the EX3400-48P, displaying the modular power supply bay, fan modules, management (MGMT) port, and console (CON) port.

Figura 4: traseira angulada view of the EX3400-48P, showing the power supply unit partially extracted, illustrating its modular design.

3.2. Recursos do painel frontal

• 48 portas Ethernet 10/100/1000BASE-T: For connecting network devices.
• Portas de uplink: SFP/SFP+ ports for high-speed connections to other switches or routers.
• LEDs de status: Indicators for system status, port activity, and PoE status.

3.3. Características do painel traseiro

• Power Supply Bay: Houses the modular power supply unit.
• Módulos de ventilador: Providencie refrigeração para o sistema.
• Management (MGMT) Port: An out-of-band Ethernet port for device management.
• Console (CON) Port: For local serial console access.

4. Configuração

4.1. Desembalagem e Inspeção

Carefully remove the switch from its packaging. Inspect the device for any signs of physical damage. Report any damage to your supplier immediately.

4.2. Montagem em Rack

The EX3400-48P is designed for standard 19-inch rack installation. Use the provided rack-mount brackets and screws to secure the switch in the rack. Ensure adequate space for airflow around the unit.

4.3. Conexão de energia

1. Certifique-se de que o interruptor de alimentação no painel traseiro esteja na posição DESLIGADO.
2. Connect the power cord to the power supply unit on the rear of the switch.
3. Conecte a outra extremidade do cabo de alimentação a uma tomada elétrica CA aterrada.
4. Flip the power switch to the ON position. The system status LED should illuminate.

4.4. Configuração inicial

For initial configuration, connect a console cable from your computer to the console port on the rear of the switch. Use a terminal emulation program (e.g., PuTTY, Tera Term) with the following settings:

• Taxa de transmissão: 9600
• Bits de dados: 8
• Paridade: Nenhuma
• Bits de parada: 1
• Controle de fluxo: Nenhum

Follow the on-screen prompts to set up basic network parameters such as IP address, subnet mask, and default gateway.

5. Operação

5.1. Ligar / desligar

• Ligar: After connecting the power cord, press the power switch to the ON position. The switch will perform a power-on self-test (POST).
• Desligar: To power off, press the power switch to the OFF position. For a controlled shutdown, it is recommended to save the configuration and issue a shutdown command via the command-line interface (CLI) before physically powering off.

5.2. Indicadores LED

Os LEDs do painel frontal fornecem informações visuais sobre o funcionamento do interruptor:

• LED SISTEMA: Indicates overall system status (e.g., green for normal operation, amber for warning, red for critical error).
• LED ALM: Indica o status do alarme.
• LED PoE: Indicates Power over Ethernet status.
• LEDs de porta: Indicate link status and activity for each Ethernet port.

5.3. Configuração de rede

The EX3400-48P can be configured via its command-line interface (CLI) or a web-based graphical user interface (GUI) if enabled. Common configurations include:

• VLAN creation and assignment.
• Port security settings.
• Routing protocols.
• Quality of Service (QoS) settings.
• Spanning Tree Protocol (STP) configuration.

Refer to the Juniper Networks documentation for detailed configuration guides specific to Junos OS.

6. Manutenção

6.1. Atualizações de firmware

Regularly check the Juniper Networks support website for the latest Junos OS firmware updates. Keeping the firmware up-to-date ensures optimal performance, security, and access to new features. Follow the instructions provided with the firmware package for the update procedure.

6.2. Limpeza

Keep the switch clean and free of dust. Use a soft, dry cloth to wipe the exterior. For ventilation openings, use compressed air to remove dust buildup. Ensure the switch is powered off before cleaning.

6.3. Modular Component Replacement

The EX3400-48P features modular power supplies and fan trays. If a component fails, it can be replaced without powering down the entire switch (hot-swappable). Refer to the Juniper Networks hardware guide for specific replacement procedures.

7. Solução De Problemas

Esta seção fornece soluções para problemas comuns que você pode encontrar.

7.1. Sem energia

• Verifique se o cabo de alimentação está firmemente conectado tanto ao interruptor quanto à tomada.
• Verifique se a tomada elétrica está funcionando.
• Certifique-se de que o interruptor de alimentação no painel traseiro esteja na posição LIGADO.
• Inspect the power supply unit for any fault indicators.

7.2. No Link on Port

• Verifique a conexão do cabo Ethernet em ambas as extremidades.
• Certifique-se de que o dispositivo conectado esteja ligado e funcionando corretamente.
• Try a different port on the switch.
• Verify the cable is not damaged and meets specifications (e.g., Cat5e or higher).

7.3. Problemas de conectividade de rede

• Verify IP address, subnet mask, and gateway settings on the switch and connected devices.
• Verifique as configurações de VLAN, se aplicável.
• Use diagnostic tools like ping e traceroute from the switch CLI.
• Consult system logs for error messages.

8. Especificações

The following table outlines the technical specifications for the Juniper Networks EX3400-48P Ethernet Switch:

9. Garantia e Suporte

9.1. Garantia do produto

This product is typically covered by a manufacturer's warranty. Please refer to the specific warranty terms provided at the time of purchase or on the official Juniper Networks website. A 30-day return policy may apply depending on the vendor.

9.2. Suporte Técnico

For technical assistance, documentation, software downloads, and further support, please visit the official Juniper Networks support website. You may also contact your authorized Juniper Networks reseller for local support options.