Management Port LEDs on a QFX5100 Device

The management ports (labeled C0 for 10/100/1000 Base-T and C1 for 10/100/1000 Base-T and SFP 1000 Base-X connections) on a QFX5100 switch have two LEDs that indicate link status and link activity (see Figure 1). The left LED indicates status; the right LED indicates link/activity.

Figure 1: Management Port LEDs on a QFX5100 Switch

1 — Status LEDs	4 — em0–RJ-45 (10/100/1000 Base-T) management Ethernet port (C0)
2 — em1–SFP management Ethernet port (C1) Cage (socket for either 10/100/1000 Base-T RJ45 SFP or 1GbE fiber SFP)	5 — RJ-45 console port (CON)
3 — Reset button, see caution statement below	6 — USB port

CAUTION:

Do not use the Reset button to restart the power sequence unless under the direction of Juniper Networks Technical Assistance Center (JTAC).

Table 1 describes the management port LEDs.

Table 1: Management Port LEDs on a QFX5100 Switch
LED	Color	State	Description
Link/Activity	Unlit	Off	No link is established, there is a fault, or the link is down.
	Green	On steadily	A link is established, but there is no link activity.
	Green	Blinking or flickering	A link is established, and there is link activity.
Status	Unlit	Off	Either the port speed is 10 M or the link is down.
	Green	On steadily	The port speed is 1000 M.
	Amber	On steadily	The port speed is 100 M.