User Guide
Page 4
... 37 Viewing Trunk Information 37 Monitoring Traffic 38 Using the System Tools 39 Restarting the Switch 39 Resetting and Backing Up/Restoring Configuration 39 Upgrading the System Software 40 Configuring the ... 43 Forgotten Password 43 Forgotten Static IP Address 44 Solving LED Issues 44 If the Problem Persists 45 A OBTAINING SUPPORT FOR YOUR PRODUCT Register Your Product 47 Purchase Value-Added ... 47 Troubleshoot Online 47 Access Software Downloads 47 Telephone Technical Support and Repair 48 Contact Us 48 B SAFETY INFORMATION Important Safety Information 51 France and Peru Only 51 Power Cord ...
... 37 Viewing Trunk Information 37 Monitoring Traffic 38 Using the System Tools 39 Restarting the Switch 39 Resetting and Backing Up/Restoring Configuration 39 Upgrading the System Software 40 Configuring the ... 43 Forgotten Password 43 Forgotten Static IP Address 44 Solving LED Issues 44 If the Problem Persists 45 A OBTAINING SUPPORT FOR YOUR PRODUCT Register Your Product 47 Purchase Value-Added ... 47 Troubleshoot Online 47 Access Software Downloads 47 Telephone Technical Support and Repair 48 Contact Us 48 B SAFETY INFORMATION Important Safety Information 51 France and Peru Only 51 Power Cord ...
User Guide
Page 6
... information about the current software release, including new features, modifications, and known problems. Documentation Comments Your suggestions are very important to us : ■ Document title ■ Document part number (on the title page) ■ Page number (if appropriate) Example: ■ 3Com Baseline Switch 2250 Plus User Guide ■ Part number: DUA16476B-SAA01 ■ Page 25 Please note...
... information about the current software release, including new features, modifications, and known problems. Documentation Comments Your suggestions are very important to us : ■ Document title ■ Document part number (on the title page) ■ Page number (if appropriate) Example: ■ 3Com Baseline Switch 2250 Plus User Guide ■ Part number: DUA16476B-SAA01 ■ Page 25 Please note...
User Guide
Page 11
...Module Active LEDs show the status of any SFP modules that are installed. Contact your 3Com network supplier for use Status Green Off Meaning Fiber SFP is inserted in the slot No... 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...transmit (TX) cable connectors are not swapped If these checks do not identify the cause of the Switch. Table 5 10BASE-T/100BASE-TX/1000BASE-T Ports Status Meaning Green Link established, operating at 1000 Mbps...
...Module Active LEDs show the status of any SFP modules that are installed. Contact your 3Com network supplier for use Status Green Off Meaning Fiber SFP is inserted in the slot No... 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...transmit (TX) cable connectors are not swapped If these checks do not identify the cause of the Switch. Table 5 10BASE-T/100BASE-TX/1000BASE-T Ports Status Meaning Green Link established, operating at 1000 Mbps...
User Guide
Page 14
... ist. ■ Es unwahrscheinlich ist das die Betriebstemperatur überschritten wird. 3Com empfiehlt das Sie den Switch in der nähe von elektrischen Störquellen befinden. These are not.... Rack-Mounting or Free-Standing The unit can cause reliability problems in your equipment. Using the Mounting Kit The Switch is supplied with a grounded rack and avoid touching the unit...provide a minimum of different size Baseline or SuperStack® 3 units, the smaller units must be installed above the larger ones. 14 CHAPTER 2: INSTALLING THE SWITCH mends that the unit is installed...
... ist. ■ Es unwahrscheinlich ist das die Betriebstemperatur überschritten wird. 3Com empfiehlt das Sie den Switch in der nähe von elektrischen Störquellen befinden. These are not.... Rack-Mounting or Free-Standing The unit can cause reliability problems in your equipment. Using the Mounting Kit The Switch is supplied with a grounded rack and avoid touching the unit...provide a minimum of different size Baseline or SuperStack® 3 units, the smaller units must be installed above the larger ones. 14 CHAPTER 2: INSTALLING THE SWITCH mends that the unit is installed...
User Guide
Page 16
...The unit is complete, the Power LED turns green. 16 CHAPTER 2: INSTALLING THE SWITCH mixing a variety of Baseline and SuperStack units, the smaller units must use Ensure it automatically performs a power..., power dips and electrical storms. The unit is intended to avoid unforeseen network outages. 3Com recommends that POST failed. Ensure that the power input to your network. Table 6 summarizes... surges to be grounded. CAUTION: The Switch has no ON/OFF switch; Apply the pads to the Switch Power problems can be positioned at each Switch, sticking one on page 11 for the...
...The unit is complete, the Power LED turns green. 16 CHAPTER 2: INSTALLING THE SWITCH mixing a variety of Baseline and SuperStack units, the smaller units must use Ensure it automatically performs a power..., power dips and electrical storms. The unit is intended to avoid unforeseen network outages. 3Com recommends that POST failed. Ensure that the power input to your network. Table 6 summarizes... surges to be grounded. CAUTION: The Switch has no ON/OFF switch; Apply the pads to the Switch Power problems can be positioned at each Switch, sticking one on page 11 for the...
User Guide
Page 19
...operating by listening to the unit. Performing Spot Checks At frequent intervals, you an early warning Performing Spot Checks 19 of the Switch to ensure that the cooling fan is operating correctly. Regular checks can then be attended to when there will be least effect on... users. 3Com recommends periodically checking the items listed in Table 7. If you experience any problems can give you should slide out easily. To remove an SFP transceiver: 1 Disconnect the cable from the...
...operating by listening to the unit. Performing Spot Checks At frequent intervals, you an early warning Performing Spot Checks 19 of the Switch to ensure that the cooling fan is operating correctly. Regular checks can then be attended to when there will be least effect on... users. 3Com recommends periodically checking the items listed in Table 7. If you experience any problems can give you should slide out easily. To remove an SFP transceiver: 1 Disconnect the cable from the...
User Guide
Page 39
...Using the System Tools 39 Any network users that are experiencing problems and you are currently accessing the Internet will be prompted to download and save a file to save the current configurations of the Switch. You will be lost. Resetting and Backing Up/Restoring ...administration items: ■ Restart ■ Configuration ■ Upgrade ■ Spanning Tree ■ 802.1p Prioritization Restarting the Switch Pressing the Restart the Switch button has the same effect as power cycling the unit. No configuration information will have their computers when the restart has ...
...Using the System Tools 39 Any network users that are experiencing problems and you are currently accessing the Internet will be prompted to download and save a file to save the current configurations of the Switch. You will be lost. Resetting and Backing Up/Restoring ...administration items: ■ Restart ■ Configuration ■ Upgrade ■ Spanning Tree ■ 802.1p Prioritization Restarting the Switch Pressing the Restart the Switch button has the same effect as power cycling the unit. No configuration information will have their computers when the restart has ...
User Guide
Page 44
...correctly. ■ The correct category of the Switch. Verify that you assigned to the Switch and you forget the static IP address that : ■ The device being used. Category 5 cable is a problem with this connection. After resetting the Switch, log on to the Web interface using the... This section lists some issues that : ■ The fiber cable is in good condition. ■ The SFP module is correctly inserted. ■ A 3Com SFP module is being connected to the following topics in Chapter 1: ■ (4) Module Active LEDs ■ (4) Module Active LEDs ■ (3) Link/Activity...
...correctly. ■ The correct category of the Switch. Verify that you assigned to the Switch and you forget the static IP address that : ■ The device being used. Category 5 cable is a problem with this connection. After resetting the Switch, log on to the Web interface using the... This section lists some issues that : ■ The fiber cable is in good condition. ■ The SFP module is correctly inserted. ■ A 3Com SFP module is being connected to the following topics in Chapter 1: ■ (4) Module Active LEDs ■ (4) Module Active LEDs ■ (3) Link/Activity...
User Guide
Page 45
... on a label supplied with the following information before returning the unit: If the Problem Persists 45 ■ Product number and serial number (printed on the same link. The Switch supports full-duplex autonegotiation. If the connected device does not support autonegotiation, ensure that...Remove port connections one at a time, waiting a few seconds between each port. If the Problem Persists If the problem persists and the unit still does not operate successfully, contact your 3Com network supplier with the unit). ■ A brief description of network equipment operate by sending ...
... on a label supplied with the following information before returning the unit: If the Problem Persists 45 ■ Product number and serial number (printed on the same link. The Switch supports full-duplex autonegotiation. If the connected device does not support autonegotiation, ensure that...Remove port connections one at a time, waiting a few seconds between each port. If the Problem Persists If the problem persists and the unit still does not operate successfully, contact your 3Com network supplier with the unit). ■ A brief description of network equipment operate by sending ...
User Guide
Page 67
... Class A digital apparatus meets all requirements of the following booklet prepared by the Federal Communications Commission helpful: How to Identify and Resolve Radio-TV Interference Problems This booklet is available from the receiver. ■ Plug the equipment into a different outlet so that equipment and receiver are designed to provide reasonable protection...
... Class A digital apparatus meets all requirements of the following booklet prepared by the Federal Communications Commission helpful: How to Identify and Resolve Radio-TV Interference Problems This booklet is available from the receiver. ■ Plug the equipment into a different outlet so that equipment and receiver are designed to provide reasonable protection...