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What should I do if the network LED does not light up after a network cable has been plugged in?
Possible root cause:
1. Cable not plugin well in CS or switch.
2. HW problem
Action:
1. Check if the cable has been plugged in correctly.
2. Use another cable/SFP module/host board for cross-validation, and insert it tightly to see if the LED lights up.
3. Replace the faulty component (cable, SFP module, or host board) after confirmation.
Created Date: 06/07/2021