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1 Blink No light
received Bad fiber
connections Clean RX
fiber on
both ends
Broken fiber Check and fix
RX fiber link
Bad port on
other end Try another
port or
replace unit
2
Blinks Jabber Jabbering
controller Follow
vendor’s
instructions
Noisy AUI
cable Replace AUI
cable
3
Blinks Partition Bad port on
other end Try another
port or
replace unit
Table 6. Troubleshooting Using the
Status LEDs
LED
Status Indicates Possible
Problem Possible
Solution