Canton 3C16476CS manual Module Active LEDs, Status Meaning

Page 11

Status	Meaning

Flashing Yellow	Packets are being received or
	transmitted on the port at 10 Mbps
Off	Link not established, either nothing is
	connected to the port, or there is a
	problem.
	■	Verify that the attached device is
		powered on
	■	Verify that the cable or fiber is the
		correct type and is not faulty
	■	For fiber connections, ensure that the
		receive (RX) and transmit (TX) cable
		connectors are not swapped

If these checks do not identify the cause of the problem, it may be that the unit or the device connected to the port is faulty. Contact your 3Com network supplier for further advice.

Table 5 10BASE-T/100BASE-TX/1000BASE-T Ports

StatusMeaning

Green	Link established, operating at 1000
	Mbps
Yellow	Link established, operating at 10 or 100
	Mbps
Flashing Green	Packets are being received or
	transmitted on the port at 1000 Mbps
Flashing Yellow	Packets are being received or
	transmitted on the port at 10 or 100
	Mbps

Physical Features

11

Status	Meaning

Flashing Yellow to	Port disabled or link loopback error
Green
Off	Link not established, either nothing is
	connected to the port, or there is a
	problem.
	■	Verify that the attached device is
		powered on
	■	Verify that the cable or fiber is the
		correct type and is not faulty
	■	For fiber connections, ensure that the
		receive (RX) and transmit (TX) cable
		connectors are not swapped

If these checks do not identify the cause of the problem, it may be that the unit or the device connected to the port is faulty. Contact your 3Com network supplier for further advice.

(4) Module Active LEDs

The Module Active LEDs show the status of any SFP modules that are installed.

Table 6 Module Active LEDs

StatusMeaning

Green	Fiber SFP is inserted in the slot
Off	No fiber SFP is inserted in the slot

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Contents 3C16476CS Baseline Switch 2250 PlusEnvironmental Statement about the Documentation End of Life StatementRegulated Materials Statement Contents Safety Information Convention Description ConventionsIcon Description Documentation Comments Related DocumentationAutonegotiating 10/100 Mbps Ports Overview of the Baseline Switch 2250 PlusFeatures and Capabilities Autosensing of MDI/MDIX ConnectionsPriority Level SFP PortsTraffic Prioritization Forwarding of Bpdu Packets48 RJ-45 Ports Physical FeaturesFront Panel StatusMeaning 10/100/1000BASE-T/SFP PortsLink/Activity LEDs Status Meaning Module Active LEDsPackage Contents Before You Begin Positioning the SwitchRack-Mounting or Free-Standing Aufstellen des SwitchUsing the Mounting Kit Inserting the Screws Montagesatz AnweisungenColor State Supplying Power to the SwitchPlacing Units On Top of Each Other Checking for Correct OperationConnecting Devices to the Switch Connecting a Network DeviceInserting an SFP Transceiver Using SFP TransceiversApproved SFP Transceivers Verify That Performing Spot ChecksRemoving an SFP Transceiver Installing the Switch Running the Discovery Application Requirements for Accessing the Web InterfaceWelcome screen of Discovery appears Menu Logging On to the Web InterfaceNavigating the Web Interface Menu Item Description Lists the available items on the menuNavigating the Web Interface ButtonsManually Assigned Static IP Address Accessing the Interface Without Using DiscoveryDhcp Assigned IP Address Device View Configuration OverviewDevice Summary Information Color Key Polling IntervalAutomatic IP Configuration Administration SettingsModifying the IP Address Settings Restore Configuration IP SetupBackup Configuration Initialize Firmware UpgradeUser Summary RebootSystem Access Remove User Create UserModify User Snmp Add SetupSystem Time SummarySnmp Remove Configuring VLANsModify Vlan VlanModify Vlan Screen Modify PortRemove RenameVlan Detail Forwarding Tagged/Untagged FramesPort Detail Setting Up Vlan Across Two Switches Sample Vlan ConfigurationsSetting Up Two VLANs on the Same Switch Spanning Tree Tagged Vlan ConfigurationIgmp Query Igmp SnoopingBroadcast Storm Configuring Port SettingsAdministration 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 SummaryRadius Client ConfigureSecurity Radius Client Configure Screen 802.1X Settings802.1X Setup Screen Address Table Cable DiagnosticsMonitoring Cable Diagnostic Screen DiagnosticsConfiguring the Switch Forgotten Password Resetting to Factory DefaultsLink/Activity LED is on, but network perfor- mance is poor Solving LED IssuesForgotten Static IP Address Fiber cable is connected, but the Module Active LED is offAll ports appear to show continual activity If the Problem PersistsTroubleshooting Register Your Product Purchase Value-Added ServicesTroubleshoot Online Access Software Downloads 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 Electrical Related StandardsEnvironmental PhysicalAppendix C Technical Information Category 3 cable 1000BASE-TAutonegotiation BandwidthEthernet Category 5e cablesCategory 6 cable ClientLayer Ieee 802.1pIeee 802.3ad IP AddressProtocol SwitchNetwork PingTrunking Traffic monitoringGlossary Index Index Regulatory Notices