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Chapter 5
Troubleshooting
This chapter contains information about how to troubleshoot a switch in
the event a problem occurs. Sections in the chapter include:
“Power LED is Off” on page 92
“Twisted Pair Port Link LED is Off” on page 93
“SFP or XFP LED is Off” on page 94
“Transceiver is Installed but the Status is “Not Present”” on page 95
“System Fault LED is Blinking” on page 96
“System Fault LED is Steadily On” on page 97
“Cannot Establish a Local (Out-of-Band) Management Session” on
page 98
“Switch Functions Intermittently” on page 99
“Issues with Virtual Stacking Chassis Configuration” on page 100
Note
If you are unable to resolve the problem after following the
instructions in this chapter, contact Allied Telesis Technical Support
for assistance. Refer to “Contacting Allied Telesis” on page 18 for
contact information.