Cisco Catalyst 4948E 48-Port Gigabit Switch User Manual

1. Rhagymadrodd

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. Gwybodaeth Diogelwch

WARNING: Failure to follow these safety instructions could result in fire, electric shock, or other injury or damage.

• Sicrhewch y cyflenwad pŵer cyftage matches the local power grid.
• Do not operate the switch in environments with excessive heat, humidity, or dust.
• Datgysylltwch y pŵer bob amser cyn cyflawni unrhyw weithdrefnau cynnal a chadw neu osod.
• This device should be installed by qualified personnel.
• Sicrhewch sylfaen gywir i atal peryglon trydanol.

3. Cynnwys Pecyn

Gwiriwch fod yr holl eitemau yn bresennol ac mewn cyflwr da. Os oes unrhyw eitem ar goll neu wedi'i difrodi, cysylltwch â'ch gwerthwr.

• Cisco Catalyst 4948E 48-Port Gigabit Switch (WS-C4948E-F)
• Power Cords (quantity may vary based on region)
• Rack-mount Kit
• Dogfennaeth (Canllaw Cychwyn Cyflym, Gwybodaeth Diogelwch)

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

4. Cynnyrch Drosview

4.1 Panel Blaen

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.
• Statws LEDs: Indicators for system status, port activity, and power.

4.2 Panel Cefn

The rear panel typically includes:

• Dual AC Power Supply Slots: For redundant power supplies.
• Porth Consol: For local management and initial configuration.
• Porthladd Ethernet Rheoli: For out-of-band management.

5. Gosod a Gosod

5.1 Mowntio rac

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. Aliniwch y switsh â physt y rac a'i sicrhau gan ddefnyddio sgriwiau rac priodol.
3. Sicrhewch fod digon o lif aer o amgylch y switsh ar gyfer oeri priodol.

5.2 Cysylltiad Pwer

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 Cysylltiadau Rhwydwaith

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. Cyfarwyddiadau Gweithredu

6.1 Ffurfweddiad Cychwynnol

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:

• Cyfradd Baud: 9600
• Darnau Data: 8
• Cydraddoldeb: Dim
• Stopiau: 1
• Rheoli Llif: Dim

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

6.2 Management Interfaces

The switch can be managed via several interfaces:

• Rhyngwyneb Llinell Gorchymyn (CLI): Accessible via console, Telnet, or SSH for advanced configuration.
• Protocol Rheoli Rhwydwaith Syml (SNMP): For network monitoring and management.
• HTTPS: Canys web-based management (if enabled and configured).

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

7. cynnal

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

7.1 Glanhau

• Glanhewch du allan y switsh o bryd i'w gilydd gyda lliain meddal, sych.
• Ensure ventilation openings are free from dust and obstructions. Do not use liquid cleaners or aerosols.

7.2 Diweddariadau Firmware

Gwiriwch gefnogaeth Cisco yn rheolaidd 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. Datrys Problemau

Mae'r adran hon yn darparu atebion i broblemau cyffredin y gallech ddod ar eu traws.

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

9. manylebau

10. Gwarant a Chefnogaeth

10.1 Gwarant Gyfyngedig

This Cisco Catalyst 4948E-F switch comes with a 90 diwrnod gwarant cyfyngedig. 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 Cefnogaeth Dechnegol

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