3Com 2426-PWR, 2226-SFP, 2250-SFP manual Appendix B Technical Information

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86APPENDIX B: TECHNICAL INFORMATION

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Contents Installation and User Guide 3Com Corporation 350 Campus Drive Marlborough MA Contents Snmp 3COM CLI Reference Guide Page About this Guide ConventionsDocumentation Comments Product RegistrationAutosensing of MDI/MDIX Connections Overview of the Baseline SwitchFeatures and Capabilities Autonegotiating 10/100 Mbps PortsGigabit Combo Ports RJ-45/SFP Physical FeaturesPower-over-Ethernet Capability Front Panel RJ-45 10/100 PortsGigabit Combo Ports RJ-45/SFP 10/100BASE-TX Link/Activity Status LEDs SFP Mode Power LED Rear PanelPackage Contents Installing the Switch Important Safety InformationPositioning the Switch Importante Avviso di SicurezzaUsing the Mounting Kit Rack-Mounting or Free-StandingPlacing Units On Top of Each Other Supplying Power to the SwitchMontagesatz Anweisungen Checking for Correct Operation Status MeaningInserting an SFP Transceiver Using SFP TranceiversApproved SFP Transceivers Performing Spot Checks Removing an SFP TransceiverRefer to Troubleshooting on Requirements for Accessing the Web Interface Using the Console Command Line Interface CLICLI Summary with Default IP Address Logging On to the Web Interface CLI Summary with Assigned IP AddressNavigating the Web Interface MenuMenu Item Description Snmp Buttons Port StatusRunning the 3Com Switch Detect Application 3Com Switch Detect Welcome Screen3Com Switch Detect Search Screen Connecting to the WEB Interface Configuration Overview Device Summary InformationDevice View Polling IntervalAutomatic IP Configuration Administration SettingsModifying the IP Address Settings Color KeyIP Setup Backup ConfigurationRestore Configuration Firmware UpgradeReboot ResetSystem Access Initialize, keep IP settingUser Summary Create UserModify User Remove UserSystem Time SetupSystem Name Snmp Remove Configuring VLANsSnmp Add Vlan Setup Screen Modify VlanModify Port RenameRemove Port DetailVlan Detail Sample Vlan ConfigurationsForwarding Tagged/Untagged Frames Setting Up Two VLANs on the Same Switch Setting Up Vlan Across Two SwitchesTagged Vlan Configuration Spanning TreeSummary Spanning Tree Summary ScreenPort Setup Spanning Tree Setup ScreenSpanning Tree Port Setup Screen Igmp Snooping & QueryBroadcast Storm Broadcast Storm Summary ScreenQoS VoIP Traffic Settings ModifyQoS VoIP Setup Screen OUI Summary OUI AddPoE 3CBLSF26-PWR only QoS OUI Modify ScreenConfiguring Port Settings AdministrationPort Administration Summary Screen DetailPort Administration Setup Screen Speed/Duplex for 1000 Mbps ConnectionsLink Aggregation Guidelines for Creating TrunksCreate Link Aggregation Summary ScreenUse the Remove tab to delete a link aggregation group Radius Client SecurityStatistics 802.1X Settings Configure802.1X Summary Screen Monitoring Address TablePort Mirroring Port SummaryUse the Setup tab to create a port mirror session Cable Diagnostics Cable Diagnostic Summary ScreenDiagnostics Cable Diagnostic ScreenConfiguring the Switch from the WEB Interface Troubleshooting Resetting to Factory DefaultsFiber cable is connected, but the Module Active LED is off Solving LED IssuesForgotten Static IP Address All ports appear to show continual activity If the Problem PersistsLink/Activity LED is on, but network performance is poor Troubleshooting Register Your Product Purchase Value-Added ServicesTroubleshoot Online Access Software Downloads Telephone Technical Support and Repair Contact UsCountry Telephone Number Latsupportanc@3com.com Physical 3CBLSF26 Related StandardsEnvironmental Electrical3CBLSF26PWR Related Standards Physical 3CBLSF50 Related StandardsEnvironmental ElectricalAppendix B Technical Information PIN-OUTS Console CableModem Cable Null Modem CablePC-AT Serial Cable Ethernet Port RJ-45 Pin Assignments Pin Number 10/100 1000Appendix C PIN-OUTS Logging on to the CLI Getting Started with the Command Line InterfaceConsole Port Concurrent CLI Sessions CLI CommandsAutomatic Logout Syntax Default Configuration Ping ParametersIpSetup 255.255.255.0Upgrade Following example resets the Switch to factory defaults InitializePassword LogoutRegulatory Notices 100 Bandwidth 1000BASE-TAuto-negotiation Category 5e Cables Category 3 CablesCategory 5 Cables Category 6 CablesIeee 802.1D Full DuplexHalf Duplex Ieee 802.1QLink Aggregation Power over EthernetLayer MAC AddressSubnet Address SwitchServer Subnet MaskVlan Index NumbersIndex