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3Com 2426-PWR, 2226-SFP, 2250-SFP manual Configuring VLANs, SNMP Add, SNMP Remove

Models: 2426-PWR 2250-SFP 2226-SFP

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44CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE

SNMP Add

This page allows you to create community strings for management access.

Figure 29 SNMP Add Screen

SNMP Remove

This page allows you to remove community strings.

Figure 30 SNMP Remove Screen

Configuring VLANs

A virtual LAN (VLAN) is a collection of network nodes that share the same collision domain, regardless of their physical location or connection point in the network. A VLAN serves as a logical workgroup with no physical barriers, and allows users to share information and resources as though located on the same LAN.

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3Com 2426-PWR, 2226-SFP, 2250-SFP manual Configuring VLANs, SNMP Add, SNMP Remove

Contents

3CBLSF26 3CBLSF26PWR 3CBLSF50 Baseline Switch 2226-SFP Plus Baseline Switch 2426-PWR PlusBaseline Switch 2250-SFP Plus Installation and User Guide3Com Corporation 350 Campus Drive Marlborough MA UNITED STATES GOVERNMENT LEGENDENVIRONMENTAL STATEMENT End of Life StatementCONTENTS Purchase Value-Added Services Broadcast StormStatistics T ROUBLESHOOTINGGetting Started with the Command Line Interface CLI CommandsPC-AT Serial Cable Modem Cable Ethernet Port RJ-45 Pin Assignments Console PortPage Baseline Switch 2226-SFP Plus 3CBLSF26 Baseline Switch 2426-PWR Plus 3CBLSF26PWRBaseline Switch 2250-SFP Plus 3CBLSF50 ABOUT THIS GUIDEDocumentation Comments Product Registrationpddtechpubscomments@3Com.com http//esupport.3Com.comINTRODUCING THE BASELINE SWITCH Overview of the Baseline SwitchFeatures and Capabilities Autosensing of MDI/MDIX ConnectionsGigabit Combo Ports RJ-45/SFP Physical FeaturesPower-over-Ethernet Capability Front Panel 1 RJ-45 10/100 Ports2 Gigabit Combo Ports RJ-45/SFP 3 Console Port4 10/100BASE-TX Link/Activity Status LEDs 5 10/100BASE-TX Duplex Status LEDs 3CBLSF26 and 3CBLSF26PWR Only6 Gigabit Combo Port and Duplex Status LEDs StatusSFP Mode 1000BASE-T ModeLink/Activity SFP/Duplex7 Power LED 9 Power SocketRear Panel 8 Self-adhesive PadsPackage Contents INSTALLING THE SWITCH Important Safety InformationImportant Safety Information Positioning the Switch Rack-Mounting or Free-Standing Supplying Power to the SwitchPositioning the Switch Importante Avviso di SicurezzaInformation importante de seguridad Istotne informacje dot. bezpieczeństwaUsing the Mounting Kit Rack-Mounting or Free-StandingPlacing Units On Top of Each Other Supplying Power to the SwitchMontagesatz Anweisungen Reset the Switch. See “Resetting to Factory Defaults” on page Checking for Correct OperationStatus MeaningInserting an SFP Transceiver Using SFP TranceiversApproved SFP Transceivers Performing Spot Checks Removing an SFP Transceiverrefer to “Troubleshooting” on page If you experience any problems operating the SwitchCONNECTING TO THE WEB INTERFACE Requirements for Accessing the Web InterfaceUsing the Console Command Line Interface CLI Requirements for Accessing the Web InterfaceThe IP address Subnet mask and Logging On to the Web Interface Navigating the Web Interface MenuNavigating the Web Interface Menu ItemDescription Configures Radius Client settings and sets 30 CHAPTER 3 CONNECTING TO THE WEB INTERFACEMenu Item DescriptionAccessing the Switch using the 3Com Switch Detect Application ButtonsPort Status Menu ItemRunning the 3Com Switch Detect Application Figure 12 The 3Com Switch Detect Welcome ScreenAccessing the Switch using the 3Com Switch Detect Application Figure 13 The 3Com Switch Detect Search ScreenFigure 14 The 3Com Switch Detect Discovered Devices 34 CHAPTER 3 CONNECTING TO THE WEB INTERFACE CONFIGURING THE SWITCH FROM THE WEB Configuration OverviewDevice Summary Information Administration Settings Configuring VLANs Configuring Port Settings Security MonitoringDevice View Polling IntervalAdministration Settings Modifying the IP Address SettingsAutomatic IP Configuration Color KeyIP Setup Backup ConfigurationRestore Configuration Firmware UpgradeReset System AccessReboot Initialize, keep IP settingCreate User The password can be up to 8 characters long and is case-sensitiveUser Summary This page allows you to modify a user’s access level and password Modify UserRemove User Setup System NameSystem Time SNMPSNMP Remove Configuring VLANsSNMP Add VLAN Available options on the Setup screen include Modify VLANSetup Modify Port RenameRemove Port DetailVLAN Detail Sample VLAN ConfigurationsForwarding Tagged/Untagged Frames Setting Up Two VLANs on the Same Switch Setting Up VLAN Across Two SwitchesSpanning Tree Figure 39 Tagged VLAN ConfigurationSummary Figure 41 Spanning Tree Setup Screen Port SetupSetup Choose Enabled or Disabled from the IGMP Snooping Mode drop down menu IGMP Snooping & QueryBroadcast Storm Configuring VLANsSummary Two tabs are available on the Broadcast Storm page Summary ModifySummary QoS VoIP Traffic SettingsModify Setup Port SetupFigure 47 QoS VoIP Setup Screen Figure 48 QoS Port Setup ScreenOUI Summary OUI AddPort Detail Telephony OUI - Input a new company identifier to add to the listSummary PoE 3CBLSF26-PWR onlySetup Summary Configuring Port SettingsAdministration Port State - Enables and disables the port DetailSetup Speed/Duplex for 1000 Mbps Connections Figure 56 Port Administration Setup ScreenLink Aggregation Guidelines for Creating TrunksUse the Create tab to add ports to a group membership CreateSummary Modify RemoveFigure 59 Link Aggregation Modify Screen Figure 60 Link Aggregation Remove ScreenRADIUS Client SecurityStatistics 802.1X Settings ConfigureSingle-Host SetupSummary Monitoring Address TableSummary Port MirroringPort Summary Remove SetupTwo tabs are available on the Port Mirroring page Setup Remove Summary Cable DiagnosticsFigure 69 Cable Diagnostic Summary Screen Monitoring DiagnosticsFigure 70 Cable Diagnostic Screen 74 CHAPTER 4 CONFIGURING THE SWITCH FROM THE WEB INTERFACE 5 TROUBLESHOOTING Resetting to Factory DefaultsSolving LED Issues 4 10/100BASE-TX Link/Activity Status LEDs 7 Power LEDForgotten Static IP Address A link is connected, but the Link/Activity LED for the port is offAll ports appear to show continual activity If the Problem PersistsThe Link/Activity LED is on, but network performance is poor 78 CHAPTER 5 TROUBLESHOOTING Purchase Value-Added Services Access Software DownloadsA OBTAINING SUPPORT FOR YOUR PRODUCT Register Your Producthttp//csoweb4.3com.com/contactus Telephone Technical Support and RepairContact Us Country Asia, Pacific Rim Telephone Technical Support and RepairContact Us CountryCountry Latin America Telephone Technical Support and RepairCountry http//lat.3com.com/br/support/form.htmlSafety TemperatureWeight Power InletThe Baseline Switch 2426-PWR Plus has been 3CBLSF26PWR Related StandardsMaximum Pover-over-EthernetThe Baseline Switch 2250-SFP Plus has been designed 3CBLSF50 Related StandardsEnvironmental Physical86 APPENDIX B TECHNICAL INFORMATION Signal C PIN-OUTSConsole Cable RJ-45Null Modem Cable PC-AT Serial CableModem Cable always requiredEthernet Port RJ-45 Pin Assignments Pin Number10/100 100090 APPENDIX C PIN-OUTS Getting Started with the Command Line Interface 5 Under Properties, select VT100 for Emulation modeD 3COM CLI REFERENCE GUIDE Console PortConcurrent CLI Sessions CLI CommandsAutomatic Logout Default Configuration SyntaxUser Guidelines ExamplePing Parametersping IP address URL hostname SummaryipSetup ipSetupDefault Configuration SyntaxUpgrade upgradeDefault Configuration Syntaxreboot InitializeInitialize RebootPassword passwordLogout logoutVCCI Statement Pre-Standard IEEE 802.3at and Cable Temperatures REGULATORY NOTICESFCC Statement Information to the UserPage GLOSSARY 10BASE-T100BASE-TX 1000BASE-LXCategory 3 Cables Category 5 CablesCategory 5e Cables Category 6 CablesFull Duplex Half DuplexIEEE IEEE 802.1DPower over Ethernet LayerLink Aggregation MAC AddressSwitch ServerSubnet Address Subnet MaskVLAN 106 GLOSSARYINDEX Numbers