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Port Statuses

An enumeration of all the LED colors you might see on a switch or router.

Color Status
Solid Green 🟢 Link connected, no traffic
Flickering Green 🟩 Link operational (connected with traffic)
No light Port isn't working or is shut down
Blinking Amber 🟥 Fault has been detected
(duplex mismatch, excessive collisions, redundancy check errors, etc.)
Solid amber 🔴 Port has been blocked by Spanning Tree