legend

| Legend
System-Level LEDs
LED | Description
EN | The Enable LED shows that the module has passed its self-test and is available to the router.
|  | Off (dark) | Switch is not yet operational.
| Solid green | Switch is operational.
| Solid amber | An error has occurred.
Back to Top Port-Level LED States
LED Mode | Description
Status | In this mode, the port LEDs show port status, port duplex mode, port speed, and PoE status. By default, the port LEDs show port status. To display the port duplex mode and the port speed from the port LEDs, you must use the View list from the device manager.
|  | 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.
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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