3Com 4226T, 4228G Setting Up, Overview, Configure IP information manually for your Switch or view

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32CHAPTER 3: SETTING UP FOR MANAGEMENT

Setting Up

This section gives an overview of what you need to do to get your Switch

Overview

set up and ready for management when it is in its default state. The

 

whole setup process is summarised in Figure 8. Detailed procedural steps

 

are contained in the sections that follow. In brief, you need to:

 

■ Configure IP information manually for your Switch or view the

 

automatically configured IP information

 

■ Prepare for your chosen method of management

 

Figure 8 Initial Switch Setup and Management Flow diagram

Plug and Play Setup

Power up the Switch.

IP information is automatically configured.

Page 31.

Yes

Do you want to manually

No

configure the IP information?

 

 

Initial IP Information Setup

How do you want to connect to the Switch?

Connect to a front panel

 

Connect to the console

port and use the Web

 

port and use the

Interface or Command

 

Command Line Interface.

Line Interface.

 

Page 36.

Page 33.

 

 

How do you want to view the automatically

configured IP information?

Use 3Com Network

 

Connect to a console

 

port and use the

Supervisor (3NS).

 

 

Command Line Interface.

Page 40.

 

 

Page 40.

 

 

 

 

 

Feature Management

How do you want to Manage your Switch? Page 45.

 

Command Line Interface

 

 

SNMP

 

 

Web Interface

 

 

 

 

Page 47.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Connect via the

 

Connect over the

 

 

 

Connect over the

 

console port.

 

network via Telnet.

 

 

 

network.

 

Page 45.

 

Page 45.

 

 

 

Page 47.

 

 

 

 

 

 

 

 

 

 

 

 

CAUTION: To protect your Switch from unauthorized access, you must change all three default passwords as soon as possible, even if you do not intend to actively manage your Switch. For more information on default users and changing default passwords, see “Default Users and Passwords” on page 50.

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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 Convention Description ConventionsIcon 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 Site Package ContentsChoosing a Suitable Rack-mounting Repeat steps 2 and 3 for the other side of the Switch Fitting a bracket for rack-mountingStacking Units Placing Units OnTop of Each Other 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-requisitesSetting Up the Switch with IP Information Connecting the Workstation to the SwitchConfiguring the Workstation 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 Automatically Configured IPViewing 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 viaChoosing a Browser Setting Up WebInterface 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 AddressingHow do you obtain a registered IP Address? Solving StackFormation 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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