legend

| Legend
System-Level LEDs
LED | Description
SYSTEM | The SYSTEM LED shows the status of the switch (system).
|  | Off (dark) | Switch is not powered on.
| Solid green | Switch is healthy.
| Blinking green | Switch is running power-on self-test (POST).
| Solid amber | Switch is faulty, is rebooting, or is in recovery.
RPS | The RPS LED shows the status of a connected redundant power system (RPS). This LED is available on switches that support an RPS.
|  | Off (dark) | RPS is off or is not properly connected.
| Solid green | RPS is connected and is ready to provide back-up power.
| Blinking green | RPS is connected but is unavailable because it is providing power to another device.
| Solid amber | RPS is in standby mode or is in a fault condition.
| Blinking amber | Switch internal power supply has failed, and the RPS is providing power to the switch.
MASTER | The MASTER LED shows the stack master status.
|  | Off (dark) | Switch is not the stack master.
| Solid green | Switch is the stack master or a standalone switch.
| Solid amber | An error occurred when the switch was selecting the stack master switch or a stack error.
STATUS | The port LEDs are in port status mode. This is the default mode.
|  | Off (dark) | The port LEDs are not showing port status.
| Solid green | The port LEDs are showing port status.
DUPLEX | The port LEDs are in port duplex mode.
|  | Off (dark) | The port LEDs are not showing the port duplex mode.
| Solid green | The port LEDs are showing the port duplex mode.
SPEED | The port LEDs are in port speed mode.
|  | Off (dark) | The port LEDs are not showing the port speed.
| Solid green | The port LEDs are showing the port speed.
STACK | The port LEDs are in stack mode.
|  | Off (dark) | The port LEDs are not showing stack member status.
| Solid green | The port LEDs are showing stack member status.
PoE | The PoE LED shows the status of PoE being provided to the ports. This LED is available on switches that have PoE ports.
|  | Off (dark) | PoE to the ports is off.
| Solid green | One or more ports is receiving PoE.
| Blinking amber | One or more ports is not receiving PoE because of a fault.
Back to Top Port-Level LED States
LED Mode | Description
Status | In this mode, the port LEDs show port status. This is the default mode. To change the type of information displayed through the port LEDs, you can choose a mode from the View list or click the Mode button. To display the information of another switch in the stack, choose a stack member number from the Stack list.
|  | Off (dark) | No link.
| Solid green | Link is up, but there is no activity on the link.
| Blinking green | Link has activity.
| 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.
Stack | In this mode, the port LEDs show the switch member status.
|  | Off (dark) | No stack member corresponding to that member number.
| Blinking green | Stack member number of the displayed switch.
| Solid green | Member numbers of other stack member switches.
| Solid amber | Stack cable is not connected.
PoE | In this mode, the port LEDs show the status of the Power over Ethernet (PoE) ports. This LED is available on switches that have PoE ports.
|  | Off (dark) | No power is allocated.
| Solid green | Power is allocated.
| Blinking green and amber | Power is denied (to prevent exceeding power capacity).
| Blinking amber | Port is disabled due to a fault condition.
| Solid amber | Port is administratively disabled.
Back to Top Port Types
| RJ-45 port
| Small form-factor pluggable (SFP) module slot (empty)
| Fiber-optic SFP module ports
| 1000BASE-T SFP module port
Back to Top Color Wave Length Representation in CWDM Module Ports Note: The circles in the icon for a coarse wave length-division multiplexer (CWDM) module port can be any of eight colors, each denoting a different wave length in nanometers (nm). This table shows the wave length that is denoted by each color. To see the wave length of a CWDM module port, point to its icon.
Color | Wave Length
| Gray | 1470 nm
| Violet | 1490 nm
| Blue | 1510 nm
| Green | 1530 nm
| Yellow | 1550 nm
| Orange | 1570 nm
| Red | 1590 nm
| Brown | 1610 nm
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