Cisco WS-C4948E-F
Cisco Catalyst 4948E 48-Port Gigabit Switch User Manual
Model: WS-C4948E-F
1. Destpêk
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. Agahiyên Ewlekariyê
HIŞYARÎ: Neşopandina van rêwerzên ewlehiyê dikare bibe sedema agir, şoka elektrîkê, an birîndarî an zirarên din.
- Pêbaweriya dabînkirina hêzê piştrast bikintage matches the local power grid.
- Do not operate the switch in environments with excessive heat, humidity, or dust.
- Berî ku hûn her prosedurên lênêrîn an sazkirinê pêk bînin, her gav elektrîkê qut bikin.
- This device should be installed by qualified personnel.
- Ji bo pêşîlêgirtina xetereyên elektrîkê zemîna rast bicîh bikin.
3. Naveroka pakêtê
Piştrast bike ku hemû tişt hene û di rewşek baş de ne. Ger tiştek wenda be an jî zirar dîtibe, bi firoşkarê xwe re têkilî daynin.
- Cisco Catalyst 4948E 48-Port Gigabit Switch (WS-C4948E-F)
- Power Cords (quantity may vary based on region)
- Rack-mount Kit
- Belgekirin (Rêbernameya Destpêkirina Bilez, Agahiyên Ewlehiyê)

Wêne 1: Pêşî view of the Cisco Catalyst 4948E 48-Port Gigabit Switch, showing 48 RJ45 ports and 4 SFP+ uplink ports.
4. Hilbera Serîview
4.1 Panela Pêşîn
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.
- Rewşa LED: Indicators for system status, port activity, and power.
4.2 Panela paşîn
Bi gelemperî, panela paşîn di nav de ye:
- Dual AC Power Supply Slots: For redundant power supplies.
- Porta konsolê: For local management and initial configuration.
- Management Ethernet Port: For out-of-band management.
5. Sazkirin û Sazkirin
5.1 Rack Mounting
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.
- Guhêrbarê bi stûnên rafê re hevrêz bikin û bi karanîna pêçên rafê yên guncaw ewle bikin.
- Ensure adequate airflow around the switch for proper cooling.
5.2 Girêdana Hêzê
- 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 Têkiliyên Torê
- 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. Telîmatên Operating
6.1 Veavakirina Destpêkê
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:
- Rêjeya Baud: 9600
- Bitikên daneyan: 8
- Wekhevî: tune
- Bits rawestandin: 1
- Kontrola herikînê: tune
Follow the on-screen prompts to configure basic settings such as IP address, hostname, and management credentials.
6.2 Navrûyên Rêveberiyê
The switch can be managed via several interfaces:
- Navrûya Xeta Fermandariyê (CLI): Accessible via console, Telnet, or SSH for advanced configuration.
- Protokola Rêveberiya Torê ya Hêsan (SNMP): For network monitoring and management.
- HTTPS: Bo web-based management (if enabled and configured).
Refer to the Cisco IOS Software Configuration Guides for detailed information on advanced features and configurations.
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your switch.
7.1 Paqijkirin
- Derveyê swîçê bi qumaşek nerm û hişk bi awayekî periyodîk paqij bikin.
- Ensure ventilation openings are free from dust and obstructions. Do not use liquid cleaners or aerosols.
7.2 Nûvekirinên Firmware
Piştgiriya Cisco bi rêkûpêk kontrol bike 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. Destpêkirin
Ev beş çareseriyên pirsgirêkên hevpar ên ku hûn dikarin pê re rû bi rû bimînin peyda dike.
| Pirsegirêk | Sedema gengaz | Çare |
|---|---|---|
| Switch vênake. | No power, faulty power cord, or power supply failure. | Check power connections. Verify power outlet functionality. Replace power cord or power supply if necessary. |
| LED-a portê vemirî ye. | No link, faulty cable, or incorrect port configuration. | Check cable connection. Replace cable. Verify port status and configuration via CLI. |
| Cannot access switch via network. | 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. |
| Performansa torê ya hêdî. | 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. Specifications
| Taybetî | Hûrî |
|---|---|
| Cins | WS-C4948E-F |
| Type Device | Switch - 48 ports - L3 - managed |
| Cureyê dorpêçê | Rack-mountable - 1U |
| Ports | 48 x 10/100/1000BASE-T RJ45 + 4 x 1/10 Gigabit Ethernet SFP+ |
| Switching Capacity | 176 Gbps |
| IPv4 Switching Performance | 131 Mpps |
| IPv6 Switching Performance | 110 Mpps |
| Mezinahiya Maseya Navnîşana MAC | 55K têketin |
| VLANên çalak | 4094 |
| Pîvan (WxDxH) | 17.5 di x 19.4 de x 1.7 in (44.45 cm x 49.28 cm x 4.32 cm) |
| Erk | AC 120/230 V (50/60 Hz) |
| Germahiya xebitandinê | 32°F heta 104°F (0°C heta 40°C) |
| Germahiya Storage | -40°F heta 167°F (-40°C heta 75°C) |
| Humidity Operating | 10 - 90% (non-condensing) |
| MTBF | 149,261 saetan |
| Mal | Hesinî |
10. Garantî û Piştgirî
10.1 Garantiya Limited
This Cisco Catalyst 4948E-F switch comes with a 90 rojan garantiya sînorkirî. 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 Piştgiriya Teknîkî
For technical assistance, product documentation, or software downloads, please visit the official Cisco support webmalper: www.cisco.com/support. You may also contact Cisco Technical Assistance Center (TAC) for expert support.
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