Summit X670 Series Switch LEDs

The following sections describe the meanings of the LEDs on the Summit X670 and X670V series switches.

Table 1. Front Panel LEDs
Label or Type	Color/State	Meaning
MGT (Management)	Fast blinking green (2 Hz)	Power-on self test (POST) in progress.
	Steady green	POST passed. System is booting image.
	Slow blinking green (1 Hz)	Normal operation
	Blinking amber	Switch diagnostics are running. or System is disabled. Post failed or system overheated.
	Off	No external power is attached.
FAN 1, 2, 3	Steady green	Normal operation.
	Blinking amber	Failure.
	Off	No power.
P1, P2 (Power Supply)	Steady green	Normal operation.
	Steady amber	Power is attached, but no power is on.
	Blinking amber	Power failure.
	Off	No power is attached.
Stack 1 – 4	Steady green	Link OK on the indicated stacking port.
Stack 1 – 4	Blinking green	Activity on the indicated stacking port.
MD	Steady green	The motion detector feature is enabled. This LED stays lit if the motion detector feature shuts down the other LEDs on the switch.
	Blinking green (other switch LEDs are also lit)	Motion has been detected. The green blinking continues for a few seconds, and then the MD LED lights steady green.
	Blinking amber (other switch LEDs are off)	Motion has been detected. The motion detector feature turns on the other switch LEDs. The amber blinking continues for a few seconds, and then the MD LED lights steady green.
	Off	The motion detector feature is disabled.

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 – 48	Steady green	Link OK
	Blinking green	Activity
	Off	No link or port disabled.
Management Port	Steady green	Link OK
Management Port	Blinking green	Activity

Table 3. Back Panel
Label or Type	Color/State	Meaning
QSFP+ port LED (on installed VIM3 module)	Steady green	Link OK
QSFP+ port LED (on installed VIM3 module)	Blinking green	Activity