3Com 2250 Physical Features 11

Physical Features 11

Tabl e 5 10BASE-T/100BASE-TX/1000BASE-T Ports (4) Module Active LEDs

The Module Active LEDs show the status of any SFP modules that are installed.(5) Power LEDThe Power LED shows the power status of the Switch.

Flashing Packets are being received or transmit-

ted on the port

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 sup-

plier for further advice.

Status Meaning

Green Link established, operating at 1000

Mbps

Yellow Link established, operating at 10 or 100

Mbps

Flashing Green Packets are being received or transmit-

ted on the port at 1000 Mbps

Flashing Yellow Packets are being received or transmit-

ted on the port at 10 or 100 Mbps

Status Meaning

Flashing Yellow to

Green

Port disabled or link loopback error

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 sup-

plier for further advice.

Status Meaning

Green Fiber SFP is inserted in the slot

Off No fiber SFP is inserted in the slot

Status Meaning

Green The unit is powered on and ready for use

Status Meaning

Contents

Main 3Com Corporation 350 Campus Drive Marlborough MA USA 01752-3064 C A BOUT T HIS G 1 2 3 5 A B C G I R EGULATORY N ABOUT THIS GUIDE Conventions Related Documentation Documentation Comments 1 Overview of the Baseline Switch 2250 Plus Features and Capabilities Autosensing of MDI/MDIX Connections Autonegotiating 10/100 Mbps Ports SFP Ports Traffic Prioritization Forwarding of BPDU Packets Physical Features Front Panel Page Physical Features 11 Rear Panel Package Contents 2 Before You Begin Positioning the Switch Aufstellen des Switch Rack-Mounting or Free-Standing Using the Mounting Kit Montagesatz Anweisungen Placing Units On Top of Each Other Supplying Power to the Switch Checking for Correct Operation Connecting a Network Device Using SFP Transceivers Approved SFP Transceivers Inserting an SFP Transceiver Removing an SFP Transceiver Performing Spot Checks Page 3 Requirements for Accessing the Web Interface Running the Discovery Application Logging On to the Web Interface Navigating the Web Interface Buttons Port Status Accessing the Interface Without Using Discovery DHCP Assigned IP Address Manually Assigned (Static) IP Address Page 4 Configuration Overview Viewing Summary Information Changing the Admin Password Modifying the IP Address Settings Automatic IP Configuration 30 CHAPTER 4: CONFIGURING THE SWITCH Setting the IP Address To set the IP address for the Switch: are listed in Tab le 9. 1Click IP Settings on the menu. The IP Settings screen appears. Configuring Port Settings Basic Port Configuration Advanced Port Configuration Default Port Settings Configuring VLANs Creating a VLAN Deleting VLANs Modifying VLANs Defining VLAN Membership Sample VLAN Configurations Page Configuring Trunking Guidelines for Creating Trunks Creating, Modifying, and Deleting Trunks Defining Trunk Membership Viewing Trunk Information Monitoring Traffic Using the System Tools Restarting the Switch Resetting and Backing Up/Restoring Configuration Upgrading the System Software Configuring the Spanning Tree 802.1p Prioritization Page 5 Resetting to Factory Defaults Forgotten Password Forgotten Static IP Address Solving LED Issues If the Problem Persists Page A Register Your Product Purchase Value-Added Services Troubleshoot Online Access Software Downloads Telephone Technical Support and Repair Contact Us Contact Us 49 . Latin America Telephone Technical Support and Repair 50 APPENDIX A: OBTAINING SUPPORT FOR YOUR PRODUCT B Important Safety Information France and Peru Only Power Cord Set Consignes Importantes de Scurit France et Prou Uniquement Cordon lectrique Wichtige Sicherheitshinweise Informationen Stromkabel Page Page C Related Standards Electrical Environmental The 3Com Baseline Switch 2250 Plus has been designed to the following standards: Page G Page Page Page Page Page I Numbers A B C R S T U V REGULATORY NOTICES VCCI S FCC S INFORMATION TO THE USER CE STATEMENT (EUROPE)