Juniper QFX5120 Series Hardware Manual page 38

ports and the other three denote the channelized ports. See
link activity LEDs on QSFP28 Network ports.
Table 9: Status LED on QSFP28 Ports
Position Color
1–4 Unlit
1 Green
2-4 Green
All Amber
Table 10 on page 40 describes the link activity LED on SFP28 and SFP+ Network ports.
Table 10: LED Link/Activity LED on SFP28 and SFP+ Ports
LED Color
Link activity Green
Table 11 on page 41 describes the status LED on SFP28 and SFP+ ports.
State
Off
On steadily
Blinking
On steadily
Blinking
Blinking
State and Description
Blinking—The port and the link are active, and there is link activity.
On steadily—The port and the link are active, but there is no link activity.
Off—The port is not active.
Table 9 on page 40 to know about the different
Description
The port is administratively disabled,
there is no power, the link is down, or
there is a fault.
A link is established (either 100-Gigabit
or 40-Gigabit, non-channelized) but there
is no link activity. When this LED is on,
the LEDs in positions 2 to 4 are off.
A link is established (either 100-Gigabit
or 40-Gigabit, non-channelized) and
there is link activity.
A 25/10 Gigabit link is established in
channelized mode, but there is no link
activity.
A 25/10 Gigabit link is established in
channelized mode, and there is link
activity.
All four LEDs blink to indicate the beacon
function was enabled on the port.
NOTE: Note that the beacon function is
not available for the QFX5120-32C
switch.
40