Interfaces and LED behavior




1 PSU1 status LED 7 40G QSFP+ ports (49–54)
2 PSU2 status LED 8 QSFP+ port activity LEDs
3 Fan status LED 9 Serial management port
4 System status LED 10 Ethernet management port
5 1/10G SFP+ ports (1–48) 11 USB port
6 SFP+ port activity LEDs




1 PSU1 5 Hot-swappable fan module
2 PSU2 6 Fan module screw
3 AC power connector 7 Fan status LED
4 PSU status LED


LED function LED state Description
PSU1/PSU2 status LED Off Power is not supplied to the device
Green PSU is operating normally
Orange Signal issues:
- PSU is present, but no current is supplied
- Fan Lock
- OTP: Over Temperature Protection
- OCP: Over Current Protection
- OVP: Over Voltage Protection
- UVP: Under Voltage Protection
Fan status LED Green Fan operating normally
Orange Fan fault: check rear of unit to see which fan is faulty
System status LED Green System operating normally
Orange System warning
SFP+ port LED Off No link
Green 10G link
Blinking green 10G activity
Yellow 1G link
Blinking yellow 1G activity
QSFP+ port LED Off No link
Green 40G link
Blinking green 40G activity







1 PSU1 status LED 7 40/100G QSFP28 ports (49–54)
2 PSU2 status LED 8 QSFP28 port activity LEDs
3 Fan status LED 9 Serial management port
4 System status LED 10 Ethernet management port
5 1/10/25G SFP28 ports (1–48) 11 USB port
6 SFP28 port activity LEDs




1 PSU1 5 Hot-swappable fan module
2 PSU2 6 Fan module screw
3 AC power connector 7 Fan status LED
4 PSU status LED


LED function LED state Description
PSU1/PSU2 status LED Off Power is not supplied to the device
Green PSU is operating normally
Orange Signal issues:
- PSU is present, but no current is supplied
- Fan Lock
- OTP: Over Temperature Protection
- OCP: Over Current Protection
- OVP: Over Voltage Protection
- UVP: Under Voltage Protection
Fan status LED Green Fan operating normally
Orange Fan fault: check rear of unit to see which fan is faulty
System status LED Green System operating normally
Orange System warning
SFP28 port LED Off No link
Green 25G link
Blinking green 25G activity
Yellow 10G link
Blinking yellow 10G activity
QSFP28 port LED Off No link
Green 100G link
Blinking green 100G activity
Yellow 40G link
Blinking yellow 40G activity







1 System status LED 7 SFP28 port activity LEDs
2 Fan status LED 8 40/100G QSFP28 ports (49–54)
3 PSU0 status LED 9 QSFP28 port activity LEDs
4 PSU1 status LED 10 Ethernet management port
5 ID LED 11 USB port
6 1/10/25G SFP28 ports (1–48) 12 Serial management port




1 PSU0 5 Hot-swappable fan module
2 PSU1 6 Fan module LED
3 AC power connector 7 Fan module screw
4 PSU module LED


LED function LED state Description
PS0/PS1 status LED Off Power is not supplied to the device
Green PSU is operating normally
Amber PSU fault
PSU module LED Off No power input
Green Output ON and OK
Blinking green (1/s) PSU standby state input power present / Only +5VSB on.
Blinking green (2/s) Power supply firmware updating (bootloader mode).
Red Power supply critical event causing a shutdown, failure, over current, short circuit, over voltage, fan failure, and/or over temperature.
Blinking red DC power cord unplugged or DC power lost with a second power supply in parallel still with DC input power. Power supply DC present, 5VSB and 12V off via on/off control from system.
Blinking green+red Power supply warning events where the power supply continues to operate; high temp, high power, high current, and/or slow fan.
Fan status LED Green Fan operating normally
Amber Fan fault: check rear of unit to see which fan is faulty
Fan module LED Off No input power
Green Fan operating normally
Amber Fan fault
System status LED Green System operating normally
Amber Power is up but host CPU boot failed
SFP28 port LED Off No link
Green 25G link
Blinking green 25G activity
Amber 10G link
Blinking amber 10G activity
QSFP28 port LED Off No link
Green 100G link
Blinking green 100G activity
Yellow 40G link
Blinking yellow 40G activity







1 PSU1 status LED 7 40/100G QSFP28 ports (49–64)
2 PSU2 status LED 8 QSFP28 port activity LEDs
3 Fan status LED 9 Serial management port
4 System status LED 10 Ethernet management port
5 1/10/25G SFP28 ports (1–48) 11 USB port
6 SFP28 port activity LEDs




1 PSU1 5 Hot-swappable fan module
2 PSU2 6 Fan module screw
3 AC power connector 7 Fan status LED
4 PSU status LED


LED function LED state Description
PSU1/PSU2 status LED Off Power is not supplied to the device
Green PSU is operating normally
Orange Signal issues:
- PSU is present, but no current is supplied
- Fan Lock
- OTP: Over Temperature Protection
- OCP: Over Current Protection
- OVP: Over Voltage Protection
- UVP: Under Voltage Protection
Fan status LED Green Fan operating normally
Orange Fan fault: check rear of unit to see which fan is faulty
System status LED Green System operating normally
Orange System warning
SFP28 port LED Off No link
Green 25G link
Blinking green 25G activity
Yellow 1/10G link
Blinking yellow 1/10G activity
QSFP28 port LED Off No link
Green 100G link
Blinking green 100G activity
Yellow 40G link
Blinking yellow 40G activity







1 PSU1 status LED 6 QSFP28 port activity LEDs
2 PSU2 status LED 7 Serial management port
3 Fan status LED 8 Ethernet management port
4 System status LED 9 USB port
5 40/100G QSFP28 ports (1–32)




1 PSU1 5 Hot-swappable fan module
2 PSU2 6 Fan module screw
3 AC power connector 7 Fan status LED
4 PSU status LED


LED function LED state Description
PSU1/PSU2 status LED Off Power is not supplied to the device
Green PSU is operating normally
Orange Signal issues:
- PSU is present, but no current is supplied
- Fan Lock
- OTP: Over Temperature Protection
- OCP: Over Current Protection
- OVP: Over Voltage Protection
- UVP: Under Voltage Protection
Fan status LED Green Fan operating normally
Orange Fan fault: check rear of unit to see which fan is faulty
System status LED Green System operating normally
Orange System warning
QSFP28 port LED Off No link
Green 100G link
Blinking green 100G activity
Yellow 40G link
Blinking yellow 40G activity
  • Last modified: December 3, 2024