System Diagnostics; Port Diagnostic Tests; Power And Cooling Problems; Installation - SMC Networks 6608M INT User Manual

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ROUBLESHOOTING

Port Diagnostic Tests

Port Diagnostic Tests, the second diagnostic test phase, check
each port. The following table details port failures, which are
indicated in the column of the LED array corresponding to the
malfunctioning port:
Test Failure
Output Queue RAM Test
Input Queue RAM Test
Routing Table Test
Port IC Test

System Diagnostics

Power and Cooling Problems

If the Power LED does not turn on when the power cord is
plugged in, you may have a problem with the power outlet,
power cord or internal power supply as explained in the
previous section. However, if the unit powers off after running
for a while, check for loose power connections, power losses or
surges at the power outlet, and verify that the fan on back of
the unit is unobstructed and running prior to shutdown. If you
still cannot isolate the problem, then the internal power supply
may be defective. In this case, contact SMC Technical Support
for assistance.

Installation

Verify that all system components have been properly installed.
If one or more components appear to be malfunctioning (e.g.,
the power cord or network cabling), test them in an alternate
environment where you are sure that all the other components
are functioning properly.
A-4
Port Failures
LED Array Row
Tx/Rx
100Mbps
Full-Duplex
Select/Link