3Com 2226 PLUS Using SFP Tranceivers, Approved SFP Transceivers, Inserting an SFP Transceiver

Page 19

Off

The unit is not receiving power:

 

■

Verify that the power cord is connected cor-

 

 

rectly, and then try powering on the Switch

 

 

again

 

■

If the Switch still does not operate, contact

 

 

your 3Com network supplier

 

 

 

If POST fails, try the following:

■Power off the Switch, and then power it on again. Check the Power LED and see if POST was successfully completed.

■Reset the Switch. See “Resetting to Factory Defaults” on page 73.

CAUTION: Resetting the Switch to its factory defaults erases all your settings. You will need to reconfigure the Switch after you reset it.

If these do not resolve the issue:

■Check the 3Com Knowledgebase for a solution. To visit the 3Com Knowledgebase Web site, start your Web browser, and then enter http://knowledgebase.3com.com.

■Contact your 3Com network supplier for assistance.

Using SFP Tranceivers

The following sections describe how to insert an SFP transceiver into an SFP slot.

Using SFP Tranceivers

19

SFP transceivers are hot-insertable and hot-swappable. You can remove them from and insert them into any SFP port without having to power down the Switch.

Approved SFP Transceivers

The following list of approved SFP transceivers is correct at the time of publication:

■3CSFP91 SFP (SX)

■3CSFP92 SFP (LX)

To access the latest list of approved SFP transceivers for the Switch on the 3Com Web site, enter this URL into your Internet browser:

http://www.3com.com

3Com recommends using 3Com SFPs on the Switch. If you insert an SFP transceiver that is not supported, the Switch will not recognize it.

Inserting an SFP Transceiver

To be recognized as valid, the SFP transceiver must have the following characteristics:

■1000BASE-SX or 1000BASE-LX media type:

■1000BASE-SX SFP transceiver

Use this transceiver to connect the Switch directly to a multimode fiber-optic cable.

Page 18 Page 20
Image 19
Page 18 Page 20
Contents 3C16475CS Baseline Switch Plus3Com Corporation 350 Campus Drive Marlborough MA USA Contents Snmp Glossary Regulatory Notices Index Page Conventions About this GuideProduct Registration Documentation CommentsAutonegotiating 10/100 Mbps Ports Overview of the Baseline SwitchFeatures and Capabilities Autosensing of MDI/MDIX ConnectionsFront Panel Physical FeaturesGigabit Combo Ports RJ-45/SFP 10/100BASE-TX Ports 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 SwitchApproved SFP Transceivers Using SFP TranceiversInserting 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 Description Port Status ButtonsDhcp Assigned IP Address Accessing the Interface Without Using DiscoveryManually Assigned Static IP Address Device Summary Information Configuration OverviewPolling Interval Device ViewColor Key Administration SettingsModifying the IP Address Settings Automatic IP ConfigurationTo set the IP address for the Switch IP SetupRestore Configuration Backup ConfigurationUpgrade Screen Firmware UpgradeInitialize RebootUser Summary System AccessModify User Create UserRemove User System TimeSummary SetupSnmp Add Snmp Remove Configuring VLANsVlan Modify Port Modify VlanModify Port Screen RenamePort Detail RemoveVlan 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 Query Igmp SnoopingBroadcast Storm Broadcast Storm Setup Screen Administration Configuring Port SettingsDetail Port Administration Detail ScreenSpeed/Duplex for 1000 Mbps Connections Port Administration Setup ScreenGuidelines for Creating Trunks Link AggregationModify CreateLink Aggregation Remove Screen Spanning Tree per PortSpanning Tree Summary Screen Spanning Tree Detail Screen Port Mirroring Port Mirroring Setup ScreenStatistics QoS VoIP Traffic SettingsQoS VoIP Summary Screen Port SetupOUI Summary QoS Port Setup ScreenRadius Client SecurityOUI Modify Radius Client Detail Screen ConfigureRadius Client Configure Screen 802.1X Settings802.1X Summary Screen Security Monitoring Cable DiagnosticsAddress Table Cable Diagnostic Summary Screen DiagnosticsConfiguring the Switch Resetting to Factory Defaults TroubleshootingSolving LED Issues Forgotten PasswordForgotten 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 PersistsTroubleshoot Online Access Software Downloads Purchase Value-Added ServicesRegister Your Product Contact Us Telephone Technical Support and RepairCountry Telephone Number Latsupportanc@3com.com Electrical Related StandardsEnvironmental PhysicalAppendix B Technical Information Important Safety Information Safety InformationAppendix C Safety Information Auto-negotiation 1000BASE-TBandwidth Category 6 Cables Category 3 CablesCategory 5 Cables Category 5e CablesIeee 802.1Q Full DuplexHalf Duplex Ieee 802.1DNetwork LayerLink Aggregation MAC AddressSubnet Mask SwitchServer Subnet AddressVlan Regulatory Notices Page Numbers IndexIndex

2226 PLUS specifications

The 3Com 2226 PLUS is a robust network switch designed to meet the increasing demands of modern networking environments. Its ability to provide reliable connectivity and support for various technologies makes it an ideal choice for small to medium-sized businesses. This switch features 24 10/100 Mbps Ethernet ports, which allow for fast and efficient data transfer, enabling businesses to enhance their network performance significantly.

One of the standout technologies employed in the 3Com 2226 PLUS is its support for auto-negotiation. This feature automatically detects the speed and duplex capabilities of connected devices, ensuring optimal performance and minimizing configuration errors. This capability simplifies network management, allowing IT professionals to focus on other critical tasks rather than troubleshooting connectivity issues.

In addition to its impressive port offerings, the 3Com 2226 PLUS incorporates a range of Layer 2 switching features. These include support for Virtual LANs (VLANs), which enable businesses to segment their networks for improved security and efficiency. By implementing VLANs, organizations can isolate sensitive data traffic from less secure networks, enhancing overall data protection.

The switch also supports Spanning Tree Protocol (STP), which helps prevent loops in network topology. This is crucial in environments with multiple switches, as it maintains a stable network while ensuring redundancy. If a primary link fails, STP allows for a backup path to be automatically activated, ensuring minimal disruption in connectivity.

Power over Ethernet (PoE) capabilities are another significant feature of the 3Com 2226 PLUS. This technology allows the switch to deliver power to connected devices, such as IP cameras and VoIP phones, eliminating the need for additional power supplies and reducing cable clutter.

In terms of management, the 3Com 2226 PLUS supports both simple web-based configuration and SNMP (Simple Network Management Protocol), providing network administrators with flexibility in how they manage their network infrastructure.

Built with reliability in mind, the switch comes equipped with features like store-and-forward switching, error checking, and a sturdy design suitable for deployment in various environments.

Overall, the 3Com 2226 PLUS combines essential features and advanced networking technologies, making it a versatile and dependable solution for businesses looking to upgrade or establish their network infrastructure.
Top Page Image Contents