Juniper QFX5120 Series, Hardware Manual

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ports and the other three denote the channelized ports. See Table 9 on page 40 to know about the different
link activity LEDs on QSFP28 Network ports.
Table 9: Status LED on QSFP28 Ports
Description State Color Position
The port is administratively disabled,
there is no power, the link is down, or
there is a fault.
Off Unlit 1–4
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.
On steadily Green 1
Blinking
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.
On steadily Green 2-4
Blinking
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.
Blinking Amber All
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
State and Description Color LED
•
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.
Green Link activity
Table 11 on page 41 describes the status LED on SFP28 and SFP+ ports.
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