
173
Using the BayStack 420 10/100/1000 Switch
Chapter 4
Troubleshooting
This chapter describes how to isolate and diagnose problems with your BayStack
420 Switch and covers the following topics:
•
“Interpreting the LEDs
,” next
•
“Diagnosing and correcting problems” on page 175
— Normal power-up sequence
— Port connection problems
The chapter topics lead you through a logical process for troubleshooting the
BayStack 420 Switch. For example, because LEDs provide visual indications
of certain problems, see
“Interpreting the LEDs” on page 173
to understand the
various states (
Table 42
) that your switch LEDs can exhibit during normal
operation.
For more help in determining the problem,
“Diagnosing and correcting problems”
on page 175
describes symptoms and corrective actions (
Table 43
) you can
perform to resolve specific problems. Subsequent sections give step-by-step
procedures to correct the problems.
Interpreting the LEDs
Figure 78
shows the BayStack 420 Switch LED display panel.
Table 42
describes
the LEDs.
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