legend

| Legend
### System-Level LEDs
LED | Description
SYSTEM | The SYSTEM LED shows the status of the switch (system).
|  | Solid green | The switch is healthy.
|  | Blinking green | The switch is running power-on self-test (POST).
|  | Solid amber | The switch is faulty, is rebooting, or is in recovery.
ALARM | The ALARM LED shows the presence of a switch power problem.
|  | Off (dark) | Power to the switch is off or the power alarm is off.
|  | Solid green | The power alarm is on.
|  | Blinking red | The switch has detected a major alarm condition.
|  | Solid Red | The switch has detected a minor alarm condition.
SETUP | The configuration mode in which the switch is operating. The SETUP button on the Front Panel view is not active.
|  | Off (dark) | The switch is configured as a managed switch or switch is operating as an unmanaged switch.
|  | Solid green | The switch is in initial setup.
|  | Blinking red | The switch is in initial setup or in recovery, or initial setup is incomplete.
|  | Solid Red | The switch failed to start initial setup or recovery, because there is no available switch port to which to connect the management station.
PWR A and PWR B | The PWR LEDs show the DC power status.
|  | Off (dark) | Power to the switch is off or is not properly connected.
|  | Solid green | Power is present.
|  | Solid red | Power to the switch is not present and and the power supply alarm is on.
Back to the top ### Port-Level LED States
LED Mode | Description
Status | By default, the port LEDs show port status. To display the port duplex mode, the port speed, and the Smartports status from the port LEDs, you must use the View list.
|  | Off (dark) | No link.
|  | Solid green | Link is up, but there is no activity on the link.
|  | Blinking green | Link has activity. During direct managed mode, the port with the blinking green LED is the selected management port to which to connect the management station.
|  | Solid brown | Port is administratively disabled.
|  | Yellow | Port is error-disabled.
|  | Blinking green and amber | Link is faulty.
|  | Blinking amber | Port has a Smartports configuration mismatch.
|  | Solid amber | Port is faulty, is disabled due to an error condition, or is in an STP-blocked state.
Duplex | In this mode, the port LEDs show the duplex mode (full duplex or half duplex) of the ports. Note: The 10/100/1000 ports operate only in full-duplex mode.
|  | Off (dark) | No link.
|  | Solid light blue | Port is in half-duplex mode.
|  | Solid green | Port is in full-duplex mode.
Speed | In this mode, the port LEDs show the operating speed (10, 100, or 1000 Mb/s) of the ports.
|  | Off (dark) | No link.
|  | Solid light blue | 10 Mb/s.
|  | Solid green | 100 Mb/s.
|  | Blinking green | 1000 Mb/s.
Smartports | In this mode, each port image shows the applied port role. For information about Smartports, see Smartports.
Back to the top ### Port Types
| RJ-45 port
| Small form-factor pluggable (SFP) module slot (empty)
| Fiber-optic SFP module ports
| 1000BASE-T SFP module port
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