28
Ports and LEDs
Figure 24 LSEM1QGS16SF0/LSEM3QGS16SF0 front panel
(1) 40GBASE-R-QSFP+ fiber ports
(2) RUN/ALM LED
(3) 40GBASE-R-QSFP fiber port LEDs
Table 27 LED description
LED
Status
Description
QSFP28 port LED
Flashing
The QSFP28 port is sending or receiving data.
On
A link is present on the QSFP28 port.
Off
No link is present on the QSFP28 port.
RUN/ALM LED
Flashing green (once per
two seconds)
The interface module is operating correctly.
Flashing green (four
times per second)
The interface module is loading software.
Steady green
The interface module is starting up.
Steady red
The interface module is faulty, or a high severity
alarm has occurred on the interface module.
Flashing red (once per
four seconds)
The temperature of the interface module has
exceeded the upper warning threshold or fell below
the lower warning threshold.
Off
The interface module is faulty or not present.
NOTE:
You can determine whether a QSFP28 port supports 100GE downspeed to 40GE by observing the
color of its LED. If the LED is yellow, the QSFP28 port supports 100GE downspeed to 40GE. If the
LED is green, the QSFP28 port does not support 100GE downspeed to 40GE.
LSEM1QGS36SF0/LSEM3QGS36SF0
View
Figure 25 LSEM1QGS36SF0/LSEM3QGS36SF0 interface module view (LSEM1QGS36SF0 as
an example)