3Com 3C16491 manual Overview of the Baseline Switch, Features and Capabilities

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1	INTRODUCING THE BASELINE SWITCH

This chapter provides an overview of the features and capabilities of the 3Com Baseline Switch 2426 PWR Plus. It also identifies the contents of the Switch package and helps you get to know the physical features of the device.

Overview of the Baseline Switch

The 3Com® Baseline Switch 2426 PWR Plus is a versatile, easy-to-use configurable Power-over-Ethernet (PoE) Switch. It is ideal for users who want the high-speed performance of 10/100 switching with the added functionality of Gigabit fiber links, but do not need sophisticated management capabilities. The Switch is shipped ready for use. No configuration is necessary.

Features and Capabilities

The Switch has 24 shielded RJ-45, 10/100 Mbps auto-negotiating ports and 2 Gigabit combo ports (which comprised of a RJ-45 port and a Small Form Factor Pluggable (SFP) transceiver slot) on the front panel for easy, flexible connection to fiber-based Gigabit media.

Autosensing of MDI/MDIX Connections

All ports on the Switch can autosense both medium dependent interface (MDI) and medium dependent interface crossover (MDIX) connections. This allows you to connect network devices to each port using either a normal straight-through TP (twisted pair) cable or a ‘crossover’ TP cable.

Any port can therefore be used to connect to another switch port, server, or workstation without additional configuration.

Autonegotiating 10/100 Mbps Ports

Each 10/100 Mbps port automatically determines the speed and duplex mode of the connected equipment and provides a suitable switched connection. The 10/100 Mbps ports can operate in either half-duplex or full-duplex mode.

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Contents 3C16491 Baseline Switch PWR Plus3Com Corporation 350 Campus Drive Marlborough MA USA Contents Snmp Regulatory Notices Glossary Index Page Conventions About this GuideProduct Registration Documentation CommentsFeatures and Capabilities Overview of the Baseline SwitchAutosensing of MDI/MDIX Connections Autonegotiating 10/100 Mbps PortsPower-over-Ethernet Capability Physical FeaturesGigabit Combo Ports RJ-45/SFP Front PanelGigabit Combo Ports RJ-45/SFP Link/Activity Status LEDs Rear Panel Power LEDPackage Contents Before You Begin Positioning the SwitchRack-Mounting or Free-Standing Using the Mounting KitPlacing Units On Top of Each Other Montagesatz AnweisungenChecking for Correct Operation Supplying Power to the SwitchUsing SFP Tranceivers Approved SFP TransceiversInserting an SFP Transceiver Inserting an SFP Transceiver Removing an SFP TransceiverPerforming Spot Checks Installing the Switch Running the Discovery Application Requirements for Accessing the Web InterfaceWelcome screen of Discovery appears Discovered Devices Screen Logging On to the Web InterfaceMenu Navigating the Web InterfaceLists the available items on the menu Menu Item Port Status ButtonsAccessing the Interface Without Using Discovery Dhcp Assigned IP AddressManually Assigned Static IP Address Device Summary Information Configuration OverviewPolling Interval Device ViewModifying the IP Address Settings Administration SettingsAutomatic IP Configuration Color KeyTo set the IP address for the Switch IP SetupRestore Configuration Backup ConfigurationUpgrade Screen Firmware UpgradeInitialize RebootUser Summary System AccessModify User Create UserRemove User System TimeSetup SummarySnmp Add Snmp Remove Configuring VLANsVlan Modify Port Modify VlanModify Port Screen RenameRemove Port DetailVlan Detail Forwarding Tagged/Untagged Frames Sample Vlan ConfigurationsSetting Up Vlan Across Two Switches Setting Up Two VLANs on the Same SwitchSpanning Tree Tagged Vlan ConfigurationSpanning Tree Screen Igmp Snooping Igmp QueryBroadcast Storm PoE Broadcast Storm Setup ScreenAdministration Configuring Port SettingsDetail Port Administration Summary ScreenSpeed/Duplex for 1000 Mbps Connections Port Administration Setup ScreenGuidelines for Creating Trunks Link AggregationLink Aggregation Summary Screen CreateLink Aggregation Modify Screen ModifySpanning Tree per Port Spanning Tree Summary Screen Port Mirroring Spanning Tree Setup ScreenStatistics Port Mirroring Setup ScreenQoS VoIP Summary Screen QoS VoIP Traffic SettingsQoS VoIP Setup Screen Port SetupOUI Add OUI SummaryRadius Client SecurityRadius Client Detail Screen Configure802.1X Summary Screen 802.1X Settings802.1X Detail Screen Address Table MonitoringAddress Table Screen Cable DiagnosticsCable Diagnostic Screen DiagnosticsResetting to Factory Defaults TroubleshootingForgotten Password Solving LED IssuesForgotten Static IP Address Link/Activity LED is on, but network performance is poor Fiber cable is connected, but the Module Active LED is offAll ports appear to show continual activity If the Problem PersistsPurchase Value-Added Services Troubleshoot Online Access Software DownloadsRegister Your Product Contact Us Telephone Technical Support and RepairCountry Telephone Number Latsupportanc@3com.com Environmental Related StandardsPhysical ElectricalAppendix B Technical Information Important Safety Information Safety InformationAppendix C Safety Information Regulatory Notices Page 1000BASE-T Auto-negotiationBandwidth Category 5 Cables Category 3 CablesCategory 5e Cables Category 6 CablesHalf Duplex Full DuplexIeee 802.1D Ieee 802.1QLink Aggregation LayerMAC Address NetworkServer SwitchSubnet Address Subnet MaskVlan Numbers IndexIndex