3com 2250-SFP User Manual

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ROUBLESHOOTING
This chapter lists some issues that you may encounter 
while installing, using, and managing the Switch, with 
suggested courses of corrective action to take. 
If you encounter an issue that is not listed here and you 
cannot solve it, check the 3Com Knowledgebase at 
http://knowledgebase.3com.com
 before 
contacting your local technical support representative.
For more information on how to obtain support for 
your Switch, refer to 
Resetting to Factory Defaults
If the Switch does not operate normally or if the firm-
ware becomes corrupted, you can reset the Switch to 
factory defaults.
Connect to the console interface, as detailed elsewhere 
in this user guide.
During the power up sequence after the Power On Self 
Test has completed, the following message will be dis-
played:
Press Ctrl+C within 5 seconds to get into 
FailSafe mode
Do as instructed and wait for the remainder of the 
switch initialization to complete.
You will then be presented with 4 options:
Initialize
Password
Reboot
Upgrade
Selecting Initialize will delete all the stored configura-
tion information, including IP address modes and pass-
words.
Selecting Password will delete all stored passwords. The 
default user name will now be admin with no pass-
word.
Selecting Reboot will restart the Switch without making 
any changes
Selecting Upgrade will initiate a firmware download via 
TFTP. Follow the instructions provided with your TFTP 
server to upgrade the firmware using this interface.
CAUTION: Resetting the Switch to factory defaults 
erases all your settings. You will need to reconfigure the 
Switch after you reset it.