Summit X480 Series Switch LEDs

The following sections describe the meanings of the LEDs on Summit X480 switches.

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Front Panel LEDs

Label or Type Color/State Meaning
MGMT Blinking green (slow) Normal operation
Blinking green (rapid) Switch is booting; power-on self test (POST) is in progress.
Blinking amber Power-on self test (POST) failed.
Off (FAN and PSU are also off.) No external power is attached.
Off (FAN and PSU are lit.) Switch is booting.
FAN Steady green Normal operation
Blinking green (rapid) Power-on self test (POST) is in progress.
Blinking amber Failure
Off No power
PSU-1 Steady green Normal operation
Blinking amber Failure
Off No power; no power supply present.
PSU-2 Steady green Normal operation
Blinking amber Failure
Off No power; no power supply present.
Stack Management 1 – 4 Steady green Link OK on the indicated stacking port.
Blinking green Activity on the indicated stacking port.
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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 or 1 – 48

Steady green Link OK
Blinking green Activity
Off No link; port is disabled.
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Management Port

Label or Type Color/State Meaning
Left LED Blinking green Activity
Off No link; 10/100-Mbps link
Right LED Steady green 1-Gbps link
Off No link; 10/100-Mbps link
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Back Panel

Label or Type Color/State Meaning
Stacking Port LED

(on installed VIM)

Steady green Link OK
Blinking green Activity
XFP Port LED

(on installed VIM)

Steady green Link OK
Blinking green Activity
Off Port is disabled.