INDEX

Numbers

10/100/1000BASE-T ports 14 3C number 22

A

access levels of default users 50 automatic setup 42

3Com Network Supervisor 42 console port 42

B

browsers choosing 48

C cable

choosing the correct 25 fiber 26

maximum length 14 pin-outs 67

CD-ROM 10 command line interface

management 45 console port 17 conventions

notice icons, About This Guide 8 text, About This Guide 8

cross-over configuration 25

D

default settings 18 users 50

E

Ethernet address of the Switch 22

INDEX 81

F

factory defaults 18

G

GBIC

ports 14 transceivers 27

GBIC ports 14

H

hardware features 12

I

installing the Switch 19 prerequisites 20

IP addressing registered 56

IP configuration 33

L

LEDs 15

logging in as a default user 50

M

MAC address of the Switch 22 management

methods 45 preparing for 34 setting up 31, 32

manual setup console port 38 front panel port 35

MDI configuration 25 MDIX configuration 25

P passwords

of default users 50 pin assignments

modem cable 68 null modem cable 67 RJ45 68

RJ45 1000BASE-T 69 serial cable 67

pin-outs 67 ports

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3Com 4228G, 4250T, 4226T manual Index, Numbers

4250T, 4226T, 4228G specifications

The 3Com 4228G, 4226T, and 4250T are professional-grade network switches designed for businesses seeking to enhance their network infrastructure. These models offer robust performance and reliability, catering to various networking needs, from small offices to large enterprise environments.

The 3Com 4228G switch is a 28-port gigabit Ethernet switch designed for high-bandwidth applications. It provides 24 Gigabit Ethernet ports with 802.3af Power over Ethernet (PoE) capability, allowing devices such as IP phones and wireless access points to be powered directly through the Ethernet cables. This feature simplifies installation and reduces additional cabling costs. The switch also supports VLAN tagging for network segmentation, improving security and performance. Its advanced traffic management lets IT administrators prioritize network traffic effectively, ensuring critical applications receive the necessary bandwidth.

On the other hand, the 3Com 4226T is a 26-port gigabit Ethernet switch, primarily designed for environments requiring a high level of connectivity without PoE. It offers similar features to the 4228G, such as VLAN support and enhanced traffic management capabilities. The 4226T is ideal for businesses that do not require power over Ethernet yet need reliable, high-speed networking capabilities. With 26 ports, this switch is an excellent choice for medium-sized enterprises looking to upgrade their network infrastructure without overwhelming their existing resources.

The 3Com 4250T is a more advanced switch, offering 48 Gigabit Ethernet ports and a robust feature set suitable for more complex networking environments. It includes Layer 2 and Layer 3 functionality, allowing for advanced routing and switching capabilities, making it highly adaptable to various network designs. The 4250T also simplifies network management through its extensive configuration options and support for IPv6. Moreover, it features an efficient cooling system and reduced power consumption, aligning with today’s growing demand for energy-efficient solutions.

All three models utilize advanced technologies such as Spanning Tree Protocol (STP) for loop prevention, QoS mechanisms to prioritize traffic, and comprehensive security features to protect the network from unauthorized access. With their different port configurations and capabilities, the 3Com 4228G, 4226T, and 4250T switches provide exceptional performance and flexibility, making them ideal for businesses aiming to enhance their networking capabilities.