Canton 3C16476CS manual If the Problem Persists, All ports appear to show continual activity

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Ensure that the connected device has either:

Autonegotiation enabled, or

The ports are configured for half-duplex operation

All ports appear to show continual activity.

There may be broadcast storms on the network. Remove port connections one at a time, waiting a few seconds between each port. If the LEDs go off after removing a port connection, the device that was connected to that port is introducing an excessive amount of broadcast frames to the network. Some pieces of network equipment operate by sending out broadcast frames regularly.

Refer to the documentation that accompanies the device for information on disabling the broadcast operation.

If the Problem Persists

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If the Problem Persists

If the problem persists and the unit still does not operate successfully, contact your 3Com network supplier with the following information before returning the unit:

Product number and serial number (printed on a label supplied with the unit).

A brief description of the issue

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Contents 3C16476CS Baseline Switch 2250 PlusRegulated Materials Statement End of Life StatementEnvironmental Statement about the Documentation Contents Safety Information Icon Description ConventionsConvention Description Documentation Comments Related DocumentationFeatures and Capabilities Overview of the Baseline Switch 2250 PlusAutosensing of MDI/MDIX Connections Autonegotiating 10/100 Mbps PortsTraffic Prioritization SFP PortsForwarding of Bpdu Packets Priority LevelFront Panel Physical Features48 RJ-45 Ports Link/Activity LEDs 10/100/1000BASE-T/SFP PortsStatusMeaning Status Meaning Module Active LEDsPackage Contents Before You Begin Positioning the SwitchUsing the Mounting Kit Aufstellen des SwitchRack-Mounting or Free-Standing Inserting the Screws Montagesatz AnweisungenPlacing Units On Top of Each Other Supplying Power to the SwitchChecking for Correct Operation Color StateConnecting Devices to the Switch Connecting a Network DeviceApproved SFP Transceivers Using SFP TransceiversInserting an SFP Transceiver Removing an SFP Transceiver Performing Spot ChecksVerify That Installing the Switch Running the Discovery Application Requirements for Accessing the Web InterfaceWelcome screen of Discovery appears Navigating the Web Interface Logging On to the Web InterfaceMenu Menu Item Description Lists the available items on the menuNavigating the Web Interface ButtonsDhcp Assigned IP Address Accessing the Interface Without Using DiscoveryManually Assigned Static IP Address Device Summary Information Configuration OverviewDevice View Color Key Polling IntervalModifying the IP Address Settings Administration SettingsAutomatic IP Configuration Backup Configuration IP SetupRestore Configuration Initialize Firmware UpgradeSystem Access RebootUser Summary Modify User Create UserRemove User System Time SetupSummary Snmp AddSnmp Remove Configuring VLANsModify Vlan VlanModify Vlan Screen Modify PortRemove RenamePort Detail Forwarding Tagged/Untagged FramesVlan Detail Setting Up Two VLANs on the Same Switch Sample Vlan ConfigurationsSetting Up Vlan Across Two Switches Spanning Tree Tagged Vlan ConfigurationIgmp Query Igmp SnoopingAdministration Configuring Port SettingsBroadcast Storm Detail Port Administration Summary ScreenLink Aggregation Speed/Duplex for 1000 Mbps ConnectionsCreate Guidelines for Creating TrunksModify Spanning Tree per PortSpanning Tree Summary Screen Spanning Tree Detail Screen Port MirroringPort Mirroring Screen QoS VoIP Traffic SettingsQoS VoIP Setup Screen Port SetupOUI Modify OUI SummarySecurity ConfigureRadius Client Radius Client Configure Screen 802.1X Settings802.1X Setup Screen Monitoring Cable DiagnosticsAddress Table Cable Diagnostic Screen DiagnosticsConfiguring the Switch Forgotten Password Resetting to Factory DefaultsForgotten Static IP Address Solving LED IssuesFiber cable is connected, but the Module Active LED is off Link/Activity LED is on, but network perfor- mance is poorAll ports appear to show continual activity If the Problem PersistsTroubleshooting Troubleshoot Online Access Software Downloads Purchase Value-Added ServicesRegister Your Product Contact Us Telephone Technical Support and RepairCountry Country Telephone NumberUS and Canada Telephone Technical Support and Repair Important Safety Information Safety InformationAppendix B Safety Information Environmental Related StandardsPhysical ElectricalAppendix C Technical Information Autonegotiation 1000BASE-TBandwidth Category 3 cableCategory 6 cable Category 5e cablesClient EthernetIeee 802.3ad Ieee 802.1pIP Address LayerNetwork SwitchPing ProtocolTrunking Traffic monitoringGlossary Index Index Regulatory Notices