Summit X650 Series Switch LEDs

The following sections describe the meanings of the LEDs on the Summit X650 series switches.

Table 1. Front Panel LEDs
Label or Type	Color/State	Meaning
MGMT	Blinking green	Normal operation
	Blinking amber	Power-on self test (POST) failed; diagnostic test in progress.
	Off	No external power is attached.
FAN	Steady green	Normal operation
	Blinking amber	Failure
	Off	No power
PSU-1	Steady green	Normal operation
	Blinking amber	Failure
	Off	No power
PSU-2	Steady green	Normal operation
	Blinking amber	Failure
	Off	No power
Stack 1 – 4	Steady green	Link OK on the indicated stacking port.
Stack 1 – 4	Blinking green	Activity on the indicated stacking port.

Table 2. 2-digit Stack number Indicator
Label or Type	Color/State	Meaning
Left digit (1)		Reserved for future use.
Right digit (1 – 8)		Indicates the position of this switch in the SummitStack configuration.
	Upper half blinking	This switch is the stack master node.
	Lower half blinking	This switch is the stack backup node.
	Lit steadily	This switch is a standby node in the stack.
Ethernet Ports 1 – 24	Steady green	Link OK
Ethernet Ports 1 – 24	Blinking green	Activity
Management Port	Steady green	Link OK
Management Port	Blinking green	Activity

Table 3. Back Panel
Label or Type	Color/State	Meaning
Stacking Port LED (on installed VIM1 module)	Steady green	Link OK
Stacking Port LED (on installed VIM1 module)	Blinking green	Activity
SFP/SFP+ port LED (on installed VIM1 module)	Steady green	Link OK
SFP/SFP+ port LED (on installed VIM1 module)	Blinking green	Activity