Canton 3C16476CS manual 10/100/1000BASE-T/SFP Ports, Link/Activity LEDs, StatusMeaning

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10CHAPTER 1: INTRODUCING THE BASELINE SWITCH

(half-duplex or full-duplex) are automatically determined by the capabilities of the connected device.

Each port also supports automatic MDI/MDI-X detection and can be connected to either a 10BASE-T, or a 100BASE-TX device.

CAUTION: The Switch supports full-duplex autonegotiation. If the connected device does not support autonegotiation, the Switch will operate in half-duplex mode (even if the attached device is operating in full-duplex mode).

In such a configuration, you may notice some degradation of network performance. 3Com recommends that you use devices that are capable of autonegotiation (and that you ensure that autonegotiation is enabled, if it is a configurable option). (see “Troubleshooting” on page 59).

(2) 10/100/1000BASE-T/SFP Ports

Ports 49 and 50 are combination Gigabit RJ-45 ports with shared Small Form Factor Pluggable (SFP) trans- ceiver slots. If an SFP transceiver (purchased sepa- rately) is installed in a slot and is active, the associated RJ-45 port of the same number is disabled.

The 1000BASE-T RJ-45 ports support automatic MDI/MDI-X operation, so you can use straight-through or crossover cables for all network connections to workstations or servers, or to other switches or hubs.

The two SFP ports support fiber Gigabit Ethernet short-wave (SX) and long-wave (LX) SFP transceivers in any combination. This offers you the flexibility of using SFP transceivers to provide connectivity between the Switch and remote 1000 Mbps workgroups or to create a high-capacity aggregated link backbone connection.

SFP ports are numbered 49 and 50 on the Switch. When an SFP port is active, it has priority over the 10/100/1000 port of the same number. The corresponding 10/100/1000 port is disabled when an SFP transceiver is plugged in.

(3) Link/Activity LEDs

The following tables describe the LEDs visible on the front of the Switch, and how to read their status according to color.

Table 4 10BASE-T/100BASE-TX Ports

StatusMeaning

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

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Contents Baseline Switch 2250 Plus 3C16476CSRegulated Materials Statement End of Life StatementEnvironmental Statement about the Documentation Contents Safety Information Icon Description ConventionsConvention Description Related Documentation Documentation CommentsAutosensing of MDI/MDIX Connections Overview of the Baseline Switch 2250 PlusFeatures and Capabilities Autonegotiating 10/100 Mbps PortsForwarding of Bpdu Packets SFP PortsTraffic Prioritization Priority LevelFront Panel Physical Features48 RJ-45 Ports Link/Activity LEDs 10/100/1000BASE-T/SFP PortsStatusMeaning Module Active LEDs Status MeaningPackage Contents Positioning the Switch Before You BeginUsing the Mounting Kit Aufstellen des SwitchRack-Mounting or Free-Standing Montagesatz Anweisungen Inserting the ScrewsChecking for Correct Operation Supplying Power to the SwitchPlacing Units On Top of Each Other Color StateConnecting a Network Device Connecting Devices to the SwitchApproved SFP Transceivers Using SFP TransceiversInserting an SFP Transceiver Removing an SFP Transceiver Performing Spot ChecksVerify That Installing the Switch Requirements for Accessing the Web Interface Running the Discovery ApplicationWelcome screen of Discovery appears Navigating the Web Interface Logging On to the Web InterfaceMenu Lists the available items on the menu Menu Item DescriptionButtons Navigating the Web InterfaceDhcp Assigned IP Address Accessing the Interface Without Using DiscoveryManually Assigned Static IP Address Device Summary Information Configuration OverviewDevice View Polling Interval Color KeyModifying the IP Address Settings Administration SettingsAutomatic IP Configuration Backup Configuration IP SetupRestore Configuration Firmware Upgrade InitializeSystem Access RebootUser Summary Modify User Create UserRemove User Summary SetupSystem Time Snmp AddConfiguring VLANs Snmp RemoveVlan Modify VlanModify Port Modify Vlan ScreenRename RemovePort Detail Forwarding Tagged/Untagged FramesVlan Detail Setting Up Two VLANs on the Same Switch Sample Vlan ConfigurationsSetting Up Vlan Across Two Switches Tagged Vlan Configuration Spanning TreeIgmp Snooping Igmp QueryAdministration Configuring Port SettingsBroadcast Storm Port Administration Summary Screen DetailSpeed/Duplex for 1000 Mbps Connections Link AggregationGuidelines for Creating Trunks CreateSpanning Tree per Port ModifySpanning Tree Summary Screen Port Mirroring Spanning Tree Detail ScreenQoS VoIP Traffic Settings Port Mirroring ScreenPort Setup QoS VoIP Setup ScreenOUI Summary OUI ModifySecurity ConfigureRadius Client 802.1X Settings Radius Client Configure Screen802.1X Setup Screen Monitoring Cable DiagnosticsAddress Table Diagnostics Cable Diagnostic ScreenConfiguring the Switch Resetting to Factory Defaults Forgotten PasswordFiber cable is connected, but the Module Active LED is off Solving LED IssuesForgotten Static IP Address Link/Activity LED is on, but network perfor- mance is poorIf the Problem Persists All ports appear to show continual activityTroubleshooting Troubleshoot Online Access Software Downloads Purchase Value-Added ServicesRegister Your Product Telephone Technical Support and Repair Contact UsCountry Telephone Number CountryUS and Canada Telephone Technical Support and Repair Safety Information Important Safety InformationAppendix B Safety Information Physical Related StandardsEnvironmental ElectricalAppendix C Technical Information Bandwidth 1000BASE-TAutonegotiation Category 3 cableClient Category 5e cablesCategory 6 cable EthernetIP Address Ieee 802.1pIeee 802.3ad LayerPing SwitchNetwork ProtocolTraffic monitoring TrunkingGlossary Index Index Regulatory Notices