3Com 4228G, 4250T, 4226T manual About the Switch, Family

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12CHAPTER 1: INTRODUCING THE SUPERSTACK 3 SWITCH 4200 SERIES

About the Switch

The Switch 4200 Family are stackable 10/100/1000 Mbps devices which

4200 Family

consists of:

 

■ 24 or 48 10BASE-T/100BASE-TX ports

 

■

2

10/100/1000BASE-T ports

 

■

2

GBIC ports (Switch 4228G only)

The Switch provides high-performance workgroups with a backbone to server connection. You can also add the Switch 4200 Family to any SuperStack® system as your network grows.

Summary of Table 3 summarizes the hardware features that are supported by the Hardware Features Switch 4200 Family.

Table 3 Hardware features

Feature

Switch 4200 Family

 

 

Addresses

■ Up to 8000 supported

 

■ Up to 64 permanent entries

Auto-negotiation

■ Supported on all ports

 

■ Auto MDI/MDI-X

Forwarding Modes

Store and Forward

Duplex Modes

Half and full duplex on all 10/100 ports. Full duplex

 

on 1000BASE-T ports and full duplex on GBIC ports

Flow Control

In full duplex operation all ports are supported

Smart Auto-sensing

Supported on all ports except GBIC ports which are

 

single speed ports.

 

Smart auto-sensing allows auto-negotiating ports to

 

monitor and detect a high error rate on a link, or a

 

problem in the "physical" interconnection to

 

another port and react accordingly.

Traffic Prioritization

Supported (IEEE 802.ID): 2 queues per port

Ethernet and Fast Ethernet

Auto-negotiating 10BASE-T/100BASE-TX ports

Ports

 

Gigabit Ethernet

Auto-negotiating 10/100/1000BASE-T ports

GBIC

Auto-negotiating GBIC ports (Switch 4228G only)

RPS Support

Connects to SuperStack Advanced Redundant

 

Power System (ARPS) (3C16071, 3C16071A or

 

3C16071B)

Mounting

19-inch rack or stand-alone mounting

 

 

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Contents SuperStack 3Com Corporation 350 Campus Drive Marlborough, MA United States Government LegendContents Setting UP for Management Safety Information PIN -OUTSPage About this Guide Conventions Icon DescriptionConvention Description Related DocumentationAbout this Guide Introducing About the Switch FamilySwitch 4200 Family Front View DetailIntroducing the Superstack 3 Switch 4200 Series Fiber GBICs 1000BASE-T GBICsColor Indicates Port Status LEDs 10BASE-T/100BASE-TX ports Port Status LEDs Gbic portsPower/Self Test LED Color IndicatesUnit LEDs Alert LEDSystem RPS. See Connecting a Redundant Power System on Rear View DetailFeature Switch 4200 Family Automatic IP Configuration Duplex ModeRmon Alarm Quality of Service QoSInstalling the Switch Package Contents Choosing a SuitableSite Rack-mounting Repeat steps 2 and 3 for the other side of the Switch Fitting a bracket for rack-mountingPlacing Units On Top of Each OtherStacking Units Power-up Powering-upSwitch 4200 Family SequencePower/Self Test LED colors Color StateFiber cables Cross-over Cable Straight-through CableApproved Gbic The 3Com approved Gbic transceivers are TransceiversInstalling the Switch Gbic Installing the Switch Setting UP for Management Setting Up Configure IP information manually for your Switch or viewAutomatically configured IP information OverviewManual IP Configuration Automatic IP ConfigurationSetting UP for Management Manually Configuring IP Information Pre-requisitesConnecting the Workstation to the Switch Configuring the Workstation with IP InformationSetting Up the Switch with IP Information Using Command Line Interface via Telnet Example top-level command line interface menu Connecting a workstation to the Switch via the console port Setting Up the Switch with IP Information Example top-level command line interface menu Configured IP ViewingAutomatically Viewing Automatically Configured IP Information Viewing IP Information via the Console Port Methods of Managing a Switch Refer to Setting Up Command Line Interface Management on Command Line Network Using TelnetInterface Management CLI Management viaSetting Up Web InterfaceChoosing a Browser Setting Up Snmp Management Protocol Snmp can manage a Switch ifOver the Network Management workstationDefault Users User Default Name Password Access LevelSecurity Device User Modify operation on the web interface Setting UP for Management Problem Solving For Technical Support information, see Appendix DSolving Problems Solutions belowPower LED does not light On powering-up, the Power/Self Test LED lights yellowProblems Solving Communication ProblemsSolving Hardware Snmp fan fail trap hardware failure IP AddressingSolving Stack FormationHow do you obtain a registered IP Address? Solving Software Upgrade Problems Problem Solving Safety Information Important Safety Information This must be approved for the country where it is usedImportant Safety Information ’information de Sécurité Importante Schko Wichtige Sicherheitsinformationen Vorsicht Europe Appendix a Safety Information Null Modem Cable PC-AT Serial CablePin to RS-232 25-pin Pin to 9-pinModem Cable RJ-45 PinAssignments Pin Number 10/100 1000Pin Number 10/100 1000 Appendix B PIN-OUTS Switch 4226T 3C17300 Protocols Used for Administration Terminal EmulationSwitch 4250T 3C17302 Switch 4228G 3C17304 Services Register YourProduct PurchaseAccess Software TroubleshootOnline DownloadsContact Us Country Telephone Number Latin America Telephone Technical Support and Repair800 876 Appendix D Obtaining Support for Your Product Index NumbersIndex Regulatory Notices

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.
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