
Quick Install Guide  | 11  | 
Switch Controller LEDs
The following LEDs will operate if the switch controller is receiving power.
Table 1: LEDs on the 
LED | State | Function | |
  | 
  | 
  | |
Power  | Green  | The switch controller is receiving power  | |
  | 
  | 
  | |
Master  | Amber  | The switch controller is the master controller  | |
  | 
  | 
  | |
  | Off  | The switch controller is the slave controller  | |
  | 
  | 
  | |
Fault  | Red  | The switch controller or management software is  | |
  | 
  | malfunctioning  | |
  | 
  | 
  | |
  | 2 Flashes  | A   | |
  | 
  | 
  | |
  | 3 Flashes  | A PSU or PSU fan is malfunctioning  | |
  | 
  | 
  | |
  | 5 flashes  | The fan tray has been removed for more than 20  | |
  | 
  | seconds  | |
  | 
  | 
  | |
  | 6 Flashes  | The switch’s internal temperature has exceeded  | |
  | 
  | the alarm threshold  | |
  | 
  | 
  | |
  | Slow flashing at  | The SDRAM (DIMM) has not been detected  | |
  | startup  | 
  | |
  | 
  | 
  | |
  | Rapid flashing at  | The SDRAM (DIMM) is not compatible with the  | |
  | startup  | switch  | |
  | 
  | 
  | |
L/A  | Green  | A 100 Mbps management port link is open  | |
(Link/Activity)  | 
  | 
  | |
Amber  | A 10 Mbps management port link is open  | ||
  | |||
  | 
  | 
  | |
  | Flashing green  | 100 Mbps activity is occurring through the  | |
  | 
  | management port  | |
  | 
  | 
  | |
  | Flashing amber  | 10 Mbps activity is occurring through the  | |
  | 
  | management port  | |
  | 
  | 
  | |
D/C  | Green  | The management port is operating at   | |
(Duplex/  | 
  | 
  | |
Amber  | The management port is operating at   | ||
Collision)  | |||
  | 
  | ||
  | Flashing  | Collisions are occurring on the management port  | |
  | 
  | link  | |
  | 
  | 
  | 
The SwitchBlade Hardware Reference has further troubleshooting information, including information on line card and power supply unit LEDs.