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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 94
“Twisted Pair Port Link LED is Off” on page 95
“SFP or XFP LED is Off” on page 96
“Transceiver is Installed but the Status is “Not Present”” on page 97
“System Fault LED is Blinking” on page 98
“System Fault LED is Steadily On” on page 99
“Cannot Establish a Local (Out-of-Band) Management Session” on
page 100
“Switch Functions Intermittently” on page 101
“Issues with Virtual Stacking Chassis Configuration” on page 102
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 16 for
contact information.