Manuals / 3Com / Computer Equipment / Switch

3Com 4228G, 4250T Feature Switch 4200 Family Automatic IP Configuration, Port Status, Port Speed

Models: 4250T 4226T 4228G

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18CHAPTER 1: INTRODUCING THE SUPERSTACK 3 SWITCH 4200 SERIES

Default Settings Table 5 shows the default settings for the Switch 4200 Family:

Table 5 Default Settings

Feature	Switch 4200 Family

Automatic IP Configuration	Enabled
Port Status	Enabled
Port Speed	All ports are auto-negotiated
Duplex Mode	All ports are auto-negotiated
Flow Control	■ Enabled in half duplex
	■ Auto-negotiated in full duplex
Broadcast Storm Control	Enabled
Virtual LANs (VLANs)	All ports belong to the untagged Default VLAN
	(VLAN 1) with 802.1Q learning operational
IP Multicast Filtering	Filtering enabled
Rapid Spanning Tree Protocol	Enabled
Fast Start:	Enabled on all ports
RMON Alarm	Enabled
Smart Auto-Sensing	Enabled
LACP	(10/100/1000BASE-T ports and GBIC ports only)
	Enabled
Quality of Service (QoS)	All ports prioritize NBX VoIP IP.
	All ports set to “best effort” for all other traffic.

If you initialize a Switch unit by selecting System > Control > Initialize in the Web interface or by entering system control initialize in the Command Line Interface, the following settings are retained to allow you to connect to and manage the Switch:

■IP Address

■Subnet Mask

■Default Router

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3Com 4228G Feature Switch 4200 Family Automatic IP Configuration, Port Status, Port Speed, Duplex Mode, Virtual LANs VLANs

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 Color Indicates Port Status LEDs 10BASE-T/100BASE-TX ports Fiber GBICs1000BASE-T GBICs Port Status LEDs Gbic portsUnit LEDs Power/Self Test LEDColor Indicates Alert LEDSystem RPS. See Connecting a Redundant Power System on Rear View DetailRmon Alarm Feature Switch 4200 Family Automatic IP ConfigurationDuplex Mode 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 Switch 4200 Family Power-upPowering-up 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 Automatically configured IP information Setting UpConfigure IP information manually for your Switch or view 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 Example top-level command line interface menu Viewing IP Information via the Console PortMethods of Managing a Switch Refer to Setting Up Command Line Interface Management on Interface Management Command LineNetwork Using Telnet CLI Management viaSetting Up Web InterfaceChoosing a Browser Over the Network Setting Up SnmpManagement Protocol Snmp can manage a Switch if 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 DPower LED does not light Solving ProblemsSolutions below On powering-up, the Power/Self Test LED lights yellowSolving Hardware Snmp fan fail trap hardware failure ProblemsSolving Communication Problems 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 Pin to RS-232 25-pin Null Modem CablePC-AT Serial Cable Pin to 9-pinAssignments Modem CableRJ-45 Pin 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 Product ServicesRegister Your PurchaseOnline Access SoftwareTroubleshoot DownloadsContact Us Country Telephone Number Latin America Telephone Technical Support and Repair800 876 Appendix D Obtaining Support for Your Product Index NumbersIndex Regulatory Notices