1. 서론
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. 안전 정보
항상 다음 안전 예방 조치를 준수하십시오.
- 전원을 연결하기 전에 접지가 제대로 되었는지 확인하십시오.
- 습하거나 지나치게 습한 환경에서 스위치를 작동하지 마십시오.
- 지정된 전원 공급 장치만 사용하십시오.
- 과열을 방지하려면 환기구를 막지 마십시오.
- 모든 서비스는 자격을 갖춘 담당자에게 맡기세요.
3. 제품 오버view
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 주요 특징
- 48 SFP/SFP+ ports for 10GbE connectivity.
- 4 QSFP ports for 40GbE connectivity.
- High-performance switching capabilities.
- Airflow In design for efficient cooling.
4. 설정 및 설치
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 랙 마운팅
The QFX3500-48S4Q is designed for standard 19-inch rack mounting. Use the provided rack-mount kit and follow these steps:
- 제공된 나사를 사용하여 장착 브래킷을 스위치 측면에 부착하십시오.
- 적절한 랙 나사를 사용하여 스위치를 랙에 고정하십시오.
- 스위치 주변에 충분한 공기 흐름을 위한 공간을 확보하십시오.
4.3 전원 연결
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 초기 구성
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:
- 전송 속도 : 9600
- 데이터 비트: 8
- 패리티: 없음
- 정지 비트: 1
- 흐름 제어: 없음
Follow the on-screen prompts to perform initial setup, including setting the root password and basic network parameters.
5. 스위치 작동
5.1 전원 켜기/끄기
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 장치 연결
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 상태 표시기
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. 유지관리
6.1 청소
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 펌웨어 업데이트
Juniper Networks 지원을 정기적으로 확인하세요. web최신 펌웨어 업데이트는 해당 사이트에서 확인하세요. 업데이트를 적용하면 성능이 향상되고, 새로운 기능이 추가되며, 보안 취약점이 해결될 수 있습니다. 펌웨어 업그레이드를 진행할 때는 제공된 지침을 주의 깊게 따르십시오.
6.3 팬 및 전원 공급 장치 교체
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. 문제 해결
7.1 전원 없음
- Verify power cords are securely connected to both the switch and the power outlet.
- 전원 콘센트가 제대로 작동하는지 확인하세요.
- Inspect power supply LEDs for error indications.
7.2 포트 링크 문제
- Ensure correct transceiver and cable types are used for the port.
- 케이블의 상태와 연결 상태를 확인하십시오.
- 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. 사양
| 특징 | 설명 |
|---|---|
| 모델 | QFX3500-48S4Q |
| 포트 | 48 x SFP+/SFP, 4 x QSFP |
| 연결 프로토콜 | 엑스-10 (Note: This may be a generic placeholder; actual protocols are Ethernet standards) |
| 장착 유형 | 벽걸이형 (Typically rack-mount for this type of switch) |
| 국제 보호 등급 | IP00 |
| 제조업체 | 향나무 |
| 한국어: | 649661984948 |
Note: Specifications are subject to change without notice. For the most current information, refer to the official Juniper Networks product documentation.
9. 보증 및 지원
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.





