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DELL N3000 User Manual

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Hardware Overview
Table 3-16 shows the 100/1000/10000Base-T port LED definitions.
Module Bay LEDs
The following tables describe the purpose of each of the module bay LEDs 
when SFP+ and 10GBaseT modules are used.
Table 3-7. 100/1000/10000Base-T Port Definitions
LED
Color Definition
Link/SPD LED Off
There is no link.
Solid yellow
The port is operating at 10/100 Mbps.
Solid green
The port is operating at 1000 Mbps.
Activity LED 
(on non-PoE 
switches)
Off
There is no current transmit/receive activity.
Blinking green
The port is actively transmitting/receiving.
Activity/PoE 
LED (on PoE 
switches)
Off
There is no current transmit/receive activity 
and PoE power is off.
Blinking green
The port is actively transmitting/receiving and 
PoE power is off.
Blinking yellow
The port is actively transmitting/receiving and 
PoE power is on.
Solid yellow
There is no current transmit/receive activity 
and PoE power is on.
Table 3-8. SFP+ Module LED Definitions
LED
Color Definition
Link/SPD LED Off
There is no link.
Solid green
The port is operating at 10 Gbps.
Solid amber
The port is operating at 1000 Mbps.
Activity LED
Off
There is no current transmit/receive activity.
Blinking green
The port is actively transmitting/receiving.