Cisco WS-C4948E-F
Cisco Catalyst 4948E 48-Port Gigabit Switch User Manual
Model: WS-C4948E-F
1. Ro-ràdh
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. Fiosrachadh Sàbhailteachd
RABHADH: Dh’fhaodadh fàilligeadh ann a bhith a’ leantainn nan stiùiridhean sàbhailteachd seo teine, clisgeadh dealain no leòn no milleadh eile adhbhrachadh.
- Dèan cinnteach gu bheil an solar cumhachd voltage matches the local power grid.
- Do not operate the switch in environments with excessive heat, humidity, or dust.
- Dì-cheangail an cumhachd an-còmhnaidh mus dèan thu modhan-obrach sam bith airson cumail suas no stàladh.
- This device should be installed by qualified personnel.
- Dèan cinnteach gu bheil bunait cheart ann gus casg a chuir air cunnartan dealain.
3. Pasgan-susbaint
Dearbhaich gu bheil a h-uile nì an làthair agus ann an deagh staid. Ma tha nì sam bith a dhìth no millte, cuir fios chun neach-reic agad.
- Cisco Catalyst 4948E 48-Port Gigabit Switch (WS-C4948E-F)
- Power Cords (quantity may vary based on region)
- Rack-mount Kit
- Sgrìobhainnean (Stiùireadh Tòiseachaidh Luath, Fiosrachadh Sàbhailteachd)

Figear 1: Aghaidh view of the Cisco Catalyst 4948E 48-Port Gigabit Switch, showing 48 RJ45 ports and 4 SFP+ uplink ports.
4. Toradh thallview
4.1 Pannal aghaidh
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.
- Inbhe LEDs: Indicators for system status, port activity, and power.
4.2 Cùl Pannal
Mar as trice bidh am pannal cùil a’ toirt a-steach:
- Dual AC Power Supply Slots: For redundant power supplies.
- Port Console: For local management and initial configuration.
- Management Ethernet Port: For out-of-band management.
5. Setup agus Stàladh
5.1 Stàladh raca
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.
- Dèan cinnteach gu bheil sruth-adhair iomchaidh timcheall an t-suidse airson fuarachadh ceart.
5.2 Ceangal cumhachd
- 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 Ceanglaichean lìonra
- 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. Stiùireadh Obrachaidh
6.1 Rèiteachadh tùsail
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:
- Ìre: 9600
- Pàirtean dàta: 8
- Co-ionannachd: Chan eil
- Stop Bits: 1
- Smachd sruthadh: Chan eil gin
Follow the on-screen prompts to configure basic settings such as IP address, hostname, and management credentials.
6.2 Eadar-aghaidhean Riaghlaidh
The switch can be managed via several interfaces:
- Eadar-aghaidh Loidhne-àithne (CLI): Accessible via console, Telnet, or SSH for advanced configuration.
- Pròtacal Riaghladh Lìonra sìmplidh (SNMP): Airson sgrùdadh agus riaghladh lìonra.
- HTTPS: Airson web-based management (if enabled and configured).
Refer to the Cisco IOS Software Configuration Guides for detailed information on advanced features and configurations.
7. Cumail suas
Regular maintenance ensures the longevity and optimal performance of your switch.
7.1 Glanadh
- Glan taobh a-muigh an suidse bho àm gu àm le clò bog, tioram.
- Ensure ventilation openings are free from dust and obstructions. Do not use liquid cleaners or aerosols.
7.2 Ùrachaidhean Firmware
Thoir sùil cunbhalach air taic Cisco 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. A ’dèanamh trioblaid
Tha an earrann seo a’ toirt seachad fuasglaidhean air cùisean cumanta a dh’ fhaodadh tu a thighinn tarsainn orra.
| Trioblaid | Adhbhar a dh’fhaodadh a bhith ann | Fuasgladh |
|---|---|---|
| Chan eil an tionndadh a’ toirt cumhachd air. | No power, faulty power cord, or power supply failure. | Check power connections. Verify power outlet functionality. Replace power cord or power supply if necessary. |
| Port LED is off. | 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. |
| Coileanadh lìonra slaodach. | Dùmhlachd lìonra, mì-chothrom dà-fhillte, no càball lochtach. | 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. Sònrachaidhean
| Feart | Mion-fhiosrachadh |
|---|---|
| Modail | WS-C4948E-F |
| Seòrsa inneal | Switch - 48 ports - L3 - managed |
| Seòrsa cuairteachaidh | Rack-mountable - 1U |
| Puirt | 48 x 10/100/1000BASE-T RJ45 + 4 x 1/10 Gigabit Ethernet SFP+ |
| Comas atharrachadh | 176 Gbps |
| IPv4 Switching Performance | 131 Mpps |
| IPv6 Switching Performance | 110 Mpps |
| Seòladh Clàr Seòladh MAC | Inntrigidhean 55K |
| VLANs gnìomhach | 4094 |
| Meudan (WxDxH) | 17.5 in x 19.4 in x 1.7 in (44.45 cm x 49.28 cm x 4.32 cm) |
| Cumhachd | AC 120/230 V (50/60 Hz) |
| Teòthachd Obrachaidh | 32°F gu 104°F (0°C gu 40°C) |
| Teòthachd stòraidh | -40°F gu 167°F (-40°C gu 75°C) |
| Taiseachd obrachaidh | 10 - 90% (gun dùmhlachd) |
| MTBF | 149,261 uairean |
| Stuth | Meatailt |
10. Barantas agus Taic
10.1 Barantas Earranta
This Cisco Catalyst 4948E-F switch comes with a Barantas cuibhrichte 90 latha. 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 Taic Teicnigeach
For technical assistance, product documentation, or software downloads, please visit the official Cisco support weblàrach: www.cisco.com/taic. You may also contact Cisco Technical Assistance Center (TAC) for expert support.