Juniper QFX5220, Hardware Manual, Page: 41 / 247

The 10-Gbps SFP+ ports have separate bi-colored LEDs; the left LED indicates link and activity and the
right LED indicates a fault condition. See Figure 7 on page 43 .
Figure 7: Link/Activity and Status LEDs on QFX5220-128C
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1 32 3 34
1
1
2
2
—
1
—
SFP+ :LEDs that indicate link/activity and status QSFP28 LEDs that indicate link/activity,status, and
channelization
Table 9 on page 43 describe the various states of the LEDs for the QSFP28 ports and Table 10 on page 44
describe the LED states for the SFP+ ports.
Table 9: Network Port LEDs on QSFP28 Ports on a QFX5220-128C Switch
Channelized Non-Channelized State Color
A module is not present, all sub-channels
are disabled, or there is no link.
The port is administratively disabled, there
is no power, the link is down, no module is
present, or the interface is disabled.
Off Unlit
All sub-channels are up. A link is established, but there is no link
activity.
On steadily Green
The interface is up with activity. A link is established, and there is link activity. Flashing
The beacon is enabled on the port. The beacon is enabled on the port. Blipping
43