Chapter A
| Troubleshooting
Power and Cooling Problems
– 55 –
Power and Cooling Problems
If a power indicator does not turn on when the power cord is plugged in, you may
have a problem with the power outlet, power cord, or PSU. However, if the switch
powers off after running for a while, check for loose power connections, power
losses or surges at the power outlet. If you still cannot isolate the problem, the PSU
may be defective.
Installation
Verify that all system components have been properly installed. If one or more
components appear to be malfunctioning (such as the power cord or network
cabling), test them in an alternate environment where you are sure that all the
other components are functioning properly.
In-Band Access
You can access the management agent in the switch through a connection to any
port using Telnet, a web browser, or other network management software tools.
However, you must first configure the switch with a valid IP address, subnet mask,
and default gateway. If you have trouble establishing a link to the management
agent, check to see if you have a valid network connection. Then verify that you
entered the correct IP address. Also, be sure the switch port has not been disabled.
If it has not been disabled, then check the network cabling that runs between your
remote location and the switch.
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