Cisco WS-C4948E-F
Cisco Catalyst 4948E 48-Port Gigabit Switch User Manual
Model: WS-C4948E-F
1. Танилцуулга
This manual provides essential information for the proper installation, operation, maintenance, and troubleshooting of the Cisco Catalyst 4948E 48-Port Gigabit Switch (Model: WS-C4948E-F). Please read this manual thoroughly before using the device to ensure optimal performance and safety.
The Cisco Catalyst 4948E-F Ethernet Switch is designed for server-access switching, offering forty-eight 10/100/1000 Mbps RJ45 downlink ports and four 1/10 Gigabit Ethernet uplink ports. It is optimized for full-featured Top-of-Rack (ToR) data center deployments in a one Rack Unit (1RU) form factor.
2. Аюулгүй байдлын мэдээлэл
WARNING: Failure to follow these safety instructions could result in fire, electric shock, or other injury or damage.
- Эрчим хүчний хангамжийн хэмжээг баталгаажуулна ууtage matches the local power grid.
- Do not operate the switch in environments with excessive heat, humidity, or dust.
- Always disconnect power before performing any maintenance or installation procedures.
- This device should be installed by qualified personnel.
- Цахилгааны аюулаас урьдчилан сэргийлэхийн тулд зөв газардуулга хийх.
3. Багцын агуулга
Verify that all items are present and in good condition. If any item is missing or damaged, contact your vendor.
- Cisco Catalyst 4948E 48-Port Gigabit Switch (WS-C4948E-F)
- Power Cords (quantity may vary based on region)
- Rack-mount Kit
- Баримт бичиг (Шуурхай эхлүүлэх гарын авлага, аюулгүй байдлын мэдээлэл)

Зураг 1: Урд view of the Cisco Catalyst 4948E 48-Port Gigabit Switch, showing 48 RJ45 ports and 4 SFP+ uplink ports.
4. Бүтээгдэхүүн дууссанview
4.1 Урд самбар
The front panel of the Cisco Catalyst 4948E-F switch features:
- 48 x 10/100/1000BASE-T RJ45 Ports: For connecting network devices such as servers, workstations, and other switches.
- 4 x 1/10 Gigabit Ethernet SFP+ Uplink Ports: For high-speed connections to the core network or other switches.
- Статус LED: Indicators for system status, port activity, and power.
4.2 Арын самбар
Арын самбар нь ихэвчлэн дараахь зүйлийг агуулдаг.
- Dual AC Power Supply Slots: For redundant power supplies.
- Консол порт: For local management and initial configuration.
- Management Ethernet Port: For out-of-band management.
5. Тохиргоо ба суурилуулалт
5.1 Rack суурилуулах
The Cisco Catalyst 4948E-F is a 1U rack-mountable device. Follow these steps to install it in a standard 19-inch equipment rack:
- Attach the provided rack-mount brackets to the sides of the switch using the screws supplied with the kit.
- Align the switch with the rack posts and secure it using appropriate rack screws.
- Ensure adequate airflow around the switch for proper cooling.
5.2 Эрчим хүчний холболт
- Insert the power cords into the power supply modules at the rear of the switch.
- Connect the other end of the power cords to a grounded AC power outlet.
- The switch will power on automatically. Observe the system status LEDs.
5.3 Сүлжээний холболтууд
- Connect Ethernet cables from your network devices (servers, workstations) to the 10/100/1000BASE-T RJ45 ports on the front panel.
- For uplink connections, insert SFP or SFP+ transceivers into the 1/10 Gigabit Ethernet SFP+ ports and connect fiber optic cables to your core network.
6. Ашиглалтын заавар
6.1 Анхны тохиргоо
For initial configuration, connect a console cable from your management workstation to the console port on the switch's rear panel. Use a terminal emulation program (e.g., PuTTY, Tera Term) with the following settings:
- Дамжуулах хурд: 9600
- Өгөгдлийн бит: 8
- Паритет: Байхгүй
- Битийг зогсоох: 1
- Урсгалын хяналт: Байхгүй
Follow the on-screen prompts to configure basic settings such as IP address, hostname, and management credentials.
6.2 Удирдлагын интерфэйсүүд
The switch can be managed via several interfaces:
- Тушаалын шугамын интерфейс (CLI): Accessible via console, Telnet, or SSH for advanced configuration.
- Энгийн сүлжээний удирдлагын протокол (SNMP): For network monitoring and management.
- HTTPS: Учир нь web-based management (if enabled and configured).
Refer to the Cisco IOS Software Configuration Guides for detailed information on advanced features and configurations.
7. Засвар үйлчилгээ
Regular maintenance ensures the longevity and optimal performance of your switch.
7.1 Цэвэрлэгээ
- Шилжүүлэгчийн гадна талыг зөөлөн, хуурай даавуугаар үе үе цэвэрлэ.
- Ensure ventilation openings are free from dust and obstructions. Do not use liquid cleaners or aerosols.
7.2 Програм хангамжийн шинэчлэлтүүд
Cisco дэмжлэгийг тогтмол шалгаж үзээрэй website for the latest firmware updates. Applying updates can improve performance, add new features, and address security vulnerabilities. Follow Cisco's official procedures for firmware upgrades.
7.3 Power Supply Redundancy
The switch supports dual hot-swappable AC power supplies. In case of a power supply failure, the redundant unit will take over seamlessly. Replace faulty power supplies promptly to maintain redundancy.
8. Алдаа засах
Энэ хэсэг нь танд тулгарч болох нийтлэг асуудлуудын шийдлүүдийг өгдөг.
| Асуудал | Боломжит шалтгаан | Шийдэл |
|---|---|---|
| Шилжүүлэгч асахгүй байна. | No power, faulty power cord, or power supply failure. | Check power connections. Verify power outlet functionality. Replace power cord or power supply if necessary. |
| Порт LED унтраалттай байна. | No link, faulty cable, or incorrect port configuration. | Check cable connection. Replace cable. Verify port status and configuration via CLI. |
| Сүлжээгээр дамжуулан шилжүүлэгч рүү хандах боломжгүй. | Incorrect IP configuration, network connectivity issue, or firewall blocking access. | Verify IP address, subnet mask, and gateway. Check network connectivity to the management interface. Ensure no firewall rules are blocking access. Try console access. |
| Сүлжээний гүйцэтгэл удаан. | Network congestion, duplex mismatch, or faulty cable. | Check port statistics for errors or collisions. Ensure duplex settings match on both ends. Investigate network traffic patterns. |
For more complex issues, consult the Cisco documentation or contact Cisco Technical Assistance Center (TAC).
9. Техникийн үзүүлэлтүүд
| Онцлог | Дэлгэрэнгүй |
|---|---|
| Загвар | WS-C4948E-F |
| Төхөөрөмжийн төрөл | Switch - 48 ports - L3 - managed |
| Хаалтны төрөл | Rack-mountable - 1U |
| Портууд | 48 x 10/100/1000BASE-T RJ45 + 4 x 1/10 Gigabit Ethernet SFP+ |
| Шилжүүлэгч хүчин чадал | 176 Gbps |
| IPv4 Switching Performance | 131 Mpps |
| IPv6 Switching Performance | 110 Mpps |
| MAC хаягийн хүснэгтийн хэмжээ | 55K оролт |
| Идэвхтэй VLAN | 4094 |
| Хэмжээ (WxDxH) | 17.5 инч x 19.4 инч x 1.7 инч (44.45 см x 49.28 см x 4.32 см) |
| Хүч | Хувьсах гүйдэл 120/230 В (50/60 Гц) |
| Ашиглалтын температур | 32°F - 104°F (0°C - 40°C) |
| Хадгалах температур | -40°F - 167°F (-40°C - 75°C) |
| Ашиглалтын чийгшил | 10 - 90% (конденсацгүй) |
| MTBF | 149,261 цаг |
| Материал | Металл |
10. Баталгаат хугацаа ба дэмжлэг
10.1 Хязгаарлагдмал баталгаат хугацаа
This Cisco Catalyst 4948E-F switch comes with a 90 хоногийн хязгаарлагдмал баталгаат хугацаа. This warranty covers defects in materials and workmanship under normal use. For specific terms and conditions, please refer to the warranty documentation provided with your product or contact your vendor.
10.2 Техникийн дэмжлэг
For technical assistance, product documentation, or software downloads, please visit the official Cisco support webсайт: www.cisco.com/support. You may also contact Cisco Technical Assistance Center (TAC) for expert support.
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