Dell Power Supply C8000 Owner's Manual page 21

Figure 1-7. NIC Indicators (BMC management port)
1 link indicator
Indicator Status
Link indicator Blinking amber
Blinking green
Activity Solid green
indicator
Blinking green
Off
2 activity indicator
Indicator Code
Linking at 10 Mbps port speed
Linking at 100 Mbps port speed (maximum)
No activity
Transmit or receive activity
Idle
About the System
21