Cisco Catalyst 4948E 48-Port Gigabit Switch User Manual

1. Introduktion

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. Säkerhetsinformation

VARNING: Underlåtenhet att följa dessa säkerhetsinstruktioner kan leda till brand, elektrisk stöt eller annan skada eller egendomsskada.

• Se till att strömförsörjningen voltage matches the local power grid.
• Do not operate the switch in environments with excessive heat, humidity, or dust.
• Koppla alltid bort strömmen innan du utför underhåll eller installation.
• This device should be installed by qualified personnel.
• Säkerställ korrekt jordning för att förhindra elektriska faror.

3. Paketets innehåll

Kontrollera att alla artiklar finns och är i gott skick. Om någon artikel saknas eller är skadad, kontakta din återförsäljare.

• Cisco Catalyst 4948E 48-Port Gigabit Switch (WS-C4948E-F)
• Power Cords (quantity may vary based on region)
• Rackmonteringssats
• Dokumentation (snabbstartsguide, säkerhetsinformation)

Bild 1: Framsidan view of the Cisco Catalyst 4948E 48-Port Gigabit Switch, showing 48 RJ45 ports and 4 SFP+ uplink ports.

4. Produkt överview

4.1 Frontpanel

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.
• Statuslysdioder: Indikatorer för systemstatus, portaktivitet och strömförsörjning.

4.2 Bakre panel

Bakpanelen inkluderar vanligtvis:

• Dual AC Power Supply Slots: For redundant power supplies.
• Konsolport: For local management and initial configuration.
• Ethernet-port för hantering: For out-of-band management.

5. Installation och installation

5.1 Rackmontering

The Cisco Catalyst 4948E-F is a 1U rack-mountable device. Follow these steps to install it in a standard 19-inch equipment rack:

1. Attach the provided rack-mount brackets to the sides of the switch using the screws supplied with the kit.
2. Rikta in omkopplaren med rackstolparna och fäst den med lämpliga rackskruvar.
3. Säkerställ tillräckligt med luftflöde runt brytaren för korrekt kylning.

5.2 Strömanslutning

1. Insert the power cords into the power supply modules at the rear of the switch.
2. Connect the other end of the power cords to a grounded AC power outlet.
3. The switch will power on automatically. Observe the system status LEDs.

5.3 Nätverksanslutningar

1. Connect Ethernet cables from your network devices (servers, workstations) to the 10/100/1000BASE-T RJ45 ports on the front panel.
2. 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. Bruksanvisning

6.1 Initial konfiguration

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:

• Baudhastighet: 9600
• Databitar: 8
• Paritet: Ingen
• Stoppa bitar: 1
• Flödeskontroll: Ingen

Follow the on-screen prompts to configure basic settings such as IP address, hostname, and management credentials.

6.2 Hanteringsgränssnitt

The switch can be managed via several interfaces:

• Kommandoradsgränssnitt (CLI): Accessible via console, Telnet, or SSH for advanced configuration.
• Simple Network Management Protocol (SNMP): For network monitoring and management.
• HTTPS: För web-based management (if enabled and configured).

Refer to the Cisco IOS Software Configuration Guides for detailed information on advanced features and configurations.

7. Underhåll

Regular maintenance ensures the longevity and optimal performance of your switch.

7.1 Rengöring

• Rengör regelbundet utsidan av strömbrytaren med en mjuk, torr trasa.
• Ensure ventilation openings are free from dust and obstructions. Do not use liquid cleaners or aerosols.

7.2 firmwareuppdateringar

Kontrollera regelbundet Ciscos support 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. Felsökning

Det här avsnittet innehåller lösningar på vanliga problem som du kan stöta på.

For more complex issues, consult the Cisco documentation or contact Cisco Technical Assistance Center (TAC).

9. Specifikationer

10. Garanti och support

10.1 Begränsad garanti

This Cisco Catalyst 4948E-F switch comes with a 90 dagars begränsad garanti. 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 Teknisk support

For technical assistance, product documentation, or software downloads, please visit the official Cisco support webplats: www.cisco.com/support. You may also contact Cisco Technical Assistance Center (TAC) for expert support.