QSFP28 Port LEDs

Each QSFP28 port has four green LEDs. The following table describes the states for the LEDs.

Table 1.
Port Configuration	LEDs	State	Description
100 Gb or 40 Gb	1st LED	Off	No link.
		On	Link is active, but there is no activity.
		Blinking	Link is active and there is activity.
		All LEDs blinking (on 1 second, off 1 second)	Switch is beaconing.
50 Gb	1st and 3rd LEDs	Off	No link.
		On	Link is active, but there is no activity.
		Blinking	Link is active and there is activity.
		All LEDs blinking (on 1 second, off 1 second)	Switch is beaconing.
25 Gb or 10 Gb	All LEDs	Off	No link.
		On	Link is active, but there is no activity.
		Blinking	Link is active and there is activity.
		All LEDs blinking (on 1 second, off 1 second)	Switch is beaconing.