Table 2. System LED Displays
System LED
LED Color/Display
Description
Power
Green
Power is being supplied to the
switch.
Off
The switch does not have power.
Status
Blue
The switch is operating normally as
a standalone switch or as a stack
master.
Off
The switch is not the stack master.
Amber
A fault has occurred or the switch
is booting.
NOTE: The front-end ports also contain LEDs that provide information about the link status and
traffic activity on a port.
NOTE: When the ingress air temperature exceeds 60°C, the Status LED turns amber and a major
alarm triggers.
Table 3. SFP+ Port LEDs
Port LED
LED Color/Display
Description
Link LED
Off
The port is down.
Solid green
The port is up and can transmit
traffic at maximum speed. An SFP
+ port can transmit at 10G.
Solid amber
The port is up and is transmitting
traffic at lower than maximum
speed. An SFP+ port is
transmitting at 1G.
Activity LED
Off
No traffic is being transmitted or
received on the port.
Blinking green
Traffic is being transmitted or
received on the port.
Hardware Overview
7