Cisco WS-C4948E-F
Cisco Catalyst 4948E 48-Port Gigabit Switch User Manual
Model: WS-C4948E-F
1. Inleiding
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. Veiligheidsinligting
WAARSKUWING: Versuim om hierdie veiligheidsinstruksies te volg, kan lei tot brand, elektriese skok of ander beserings of skade.
- Verseker die kragtoevoer voltage matches the local power grid.
- Moenie die skakelaar in omgewings met oormatige hitte, humiditeit of stof gebruik nie.
- Ontkoppel altyd die krag voordat u enige onderhouds- of installasieprosedures uitvoer.
- This device should be installed by qualified personnel.
- Verseker behoorlike aarding om elektriese gevare te voorkom.
3. Pakketinhoud
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)
- Kragkabels (hoeveelheid kan wissel na gelang van streek)
- Rakmonteringstel
- Dokumentasie (Vinnige Begingids, Veiligheidsinligting)

Figuur 1: Voorkant view of the Cisco Catalyst 4948E 48-Port Gigabit Switch, showing 48 RJ45 ports and 4 SFP+ uplink ports.
4. Produk verbyview
4.1 Voorpaneel
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.
- Status LED's: Indicators for system status, port activity, and power.
4.2 Agterpaneel
Die agterpaneel sluit tipies in:
- Dual AC Power Supply Slots: For redundant power supplies.
- Konsolepoort: For local management and initial configuration.
- Management Ethernet Port: For out-of-band management.
5. Opstelling en installering
5.1 Rekmontering
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.
- Rig die skakelaar met die rakpale in lyn en maak dit vas met toepaslike rakskroewe.
- Verseker voldoende lugvloei rondom die skakelaar vir behoorlike verkoeling.
5.2 Kragverbinding
- 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 Netwerkverbindings
- 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. Bedryfsinstruksies
6.1 Aanvanklike konfigurasie
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:
- Baudkoers: 9600
- Databits: 8
- Pariteit: Geen
- Stopbits: 1
- Vloeibeheer: Geen
Follow the on-screen prompts to configure basic settings such as IP address, hostname, and management credentials.
6.2 Bestuurskoppelvlakke
The switch can be managed via several interfaces:
- Opdragreël-koppelvlak (CLI): Accessible via console, Telnet, or SSH for advanced configuration.
- Simple Network Management Protocol (SNMP): For network monitoring and management.
- HTTPS: Vir web-based management (if enabled and configured).
Refer to the Cisco IOS Software Configuration Guides for detailed information on advanced features and configurations.
7. Onderhoud
Gereelde onderhoud verseker die lang lewensduur en optimale werkverrigting van u skakelaar.
7.1 Skoonmaak
- Maak die buitekant van die skakelaar gereeld skoon met 'n sagte, droë lap.
- Ensure ventilation openings are free from dust and obstructions. Do not use liquid cleaners or aerosols.
7.2 Firmware-opdaterings
Gaan gereeld die Cisco-ondersteuning na webwebwerf vir die nuutste firmware-opdaterings. Die toepassing van opdaterings kan werkverrigting verbeter, nuwe funksies byvoeg en sekuriteitskwesbaarhede aanspreek. Volg Cisco se amptelike prosedures vir firmware-opgraderings.
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. Probleemoplossing
Hierdie afdeling bied oplossings vir algemene probleme wat u mag teëkom.
| Probleem | Moontlike oorsaak | Oplossing |
|---|---|---|
| Skakelaar skakel nie aan nie. | No power, faulty power cord, or power supply failure. | Check power connections. Verify power outlet functionality. Replace power cord or power supply if necessary. |
| Poort-LED is af. | No link, faulty cable, or incorrect port configuration. | Check cable connection. Replace cable. Verify port status and configuration via CLI. |
| Kan nie skakelaar via netwerk verkry nie. | 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. |
| Stadige netwerkprestasie. | 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. Spesifikasies
| Kenmerk | Detail |
|---|---|
| Model | WS-C4948E-F |
| Soort toestel | Switch - 48 ports - L3 - managed |
| Tipe omhulsel | Rack-mountable - 1U |
| Hawens | 48 x 10/100/1000BASE-T RJ45 + 4 x 1/10 Gigabit Ethernet SFP+ |
| Skakelkapasiteit | 176 Gbps |
| IPv4 Switching Performance | 131 Mpps |
| IPv6 Switching Performance | 110 Mpps |
| MAC adres tabel grootte | 55K inskrywings |
| Aktiewe VLAN's | 4094 |
| Afmetings (BxDxH) | 17.5 duim x 19.4 duim x 1.7 duim (44.45 cm x 49.28 cm x 4.32 cm) |
| Krag | AC 120/230 V (50/60 Hz) |
| Bedryfstemperatuur | 32°F tot 104°F (0°C tot 40°C) |
| Bergingstemperatuur | -40°F tot 167°F (-40°C tot 75°C) |
| Bedryfshumiditeit | 10 - 90% (nie-kondenserend) |
| MTBF | 149,261 uur |
| Materiaal | Metaal |
10. Waarborg en Ondersteuning
10.1 Beperkte waarborg
This Cisco Catalyst 4948E-F switch comes with a 90 dae beperkte waarborg. 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 Tegniese Ondersteuning
For technical assistance, product documentation, or software downloads, please visit the official Cisco support webwebwerf: www.cisco.com/support. You may also contact Cisco Technical Assistance Center (TAC) for expert support.