Juniper QFX5100, Hardware Manual

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The LED in Figure 64 on page 217 labeled Link/Activity indicate link activity or a fault. The
LED labeled Status in indicates transceiver presence.
Table 44 on page 218 describes how to interpret the SFP+ port LEDs.
Table 44: Network Port LEDs on SFP+ Ports on a QFX5100 Switch
Description State Color LED
The port is administratively disabled, there is no power, the link
is down, or there is a fault. Off Unlit Link/Activity
A link is established, but there is no link activity. On steadily Green
A link is established, and there is link activity. Blinking
The beacon is enabled on the port. Blinking Amber
The link is down. Off Unlit Status
The beacon function is enabled on the port. Blinking Amber
A 1-Gigabit Ethernet transceiver is installed in the port and the
link is established. Blinking Green
A 10-Gigabit Ethernet transceiver is installed in the port and link
is established. On steadily Green
As shown in Figure 65 on page 217 , there are four bi-color LEDs for each QSFP+ port. The
first LED is used and the remaining LEDs are not used when the interface is configured
for 40-Gigabit Ethernet and connected to a QSFP+ transceiver. All four LEDs are used
when the interface is configured for 10-Gigabit Ethernet and the port is connected using
an optical split cable or a copper DACBO cable.
Table 45 on page 218 describes how to
interpret the QSFP+ LEDs.
Table 45: Network Port LEDs on QSFP+ Ports on a QFX5100 Switch
Description State Color
The port is administratively disabled, there is no power, the link is
down, or there is a fault.
NOTE: When configured for 10-Gigabit Ethernet, the LED remains
unlit only if all four of the 10-Gigabit Ethernet SFP+ breakout links
are down.
Off Unlit
Copyright © 2014, Juniper Networks, Inc. 218
QFX5100 Switch Hardware Guide