LKC - Copper –Link/Activity
On - Copper link is up.
Off - Copper link is down.
Blinking (quickly) - Copper link is up and is sending or receiving data.
100/1000
Green - The Ethernet speed on the management module is detected at 1000 Mbps (Gigabit).
Yellow - The Ethernet speed on the management module is detected at 100 Mbps.
Off - The Ethernet speed on the management module is detected at 10 Mbps