IBM N Series Installation Manual page 14

Port LED definitions
8
Each SFP+ port has two built-in LEDs that provide port link, activity, and speed
information. Similarly, the remote management port has two built-in LEDs to
provide information about the port link, activity, and speed.
For the switch ports and remote management port, the Speed LED is on the upper
left side of the port, and the Link/Activity LED is on the upper right side of the
port:
Speed LED
Port Number
SFP+ Port
The following table describes the Speed and Link/Activity LEDs found above
each SFP+ port:
SFP+ port
LED Color
Speed Solid green
Off
Link/Activity Solid green
Blinking
green
Off
Link/Activity
LED Speed LED
3
Description
A valid 10 Gbps link is established on the
port.
No link or a valid 1 Gbps link is established
on the port.
A valid link is established on the port.
The port is transmitting or receiving
packets.
No link is established on the port.
Link/Activity
LED
SPD LNK/
Remote
Management Port
Hardware components