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302401-D Rev 00
4-1
Chapter 4
Troubleshooting
This chapter describes how to isolate and diagnose problems with your
BayStack 450 switch.
This chapter covers the following topics:
• Interpreting the LEDs
• Diagnosing and correcting the problem
-- Normal power-up sequence
-- Port connection problems
The chapter topics lead you through a logical process for troubleshooting the
BayStack 450 switch. For example, because LEDs provide visual indications of
certain problems, see “
Interpreting the LEDs” on page 4-2 to understand the
various states (see Table 4-1
) that your switch LEDs can exhibit during normal
operation.
For more help in determining the problem, “
Diagnosing and Correcting the
Problem” on page 4-5 describes symptoms and corrective actions (see Table 4-2)
you can perform to resolve specific problems. Subsequent sections give
step-by-step procedures to correct the problems.
Note:
The LED Display panel configuration for your switch may be different
than shown in this section, depending on the date of manufacturing (see the
note in “10BASE-T/100BASE-TX Ports” on page 1-3).
kombk.book Page 1 Tuesday, June 29, 1999 3:25 PM