Each Ethernet port has a green LED that indicates network activity and link speed.

Table 10. LED State/Device Status
LED State Device Status
On Ethernet link
Blinking, fast (12 blinks/s) Ethernet activity. Connected at 1,000 Mbit/s.
Blinking, moderate (6 blinks/s) Ethernet activity. Connected at 100 Mbit/s.
Blinking, slow (3 blinks/s) Ethernet activity. Connected at 10 Mbit/s.
Off No Ethernet connection