M7i FIC LEDs
Two large alarm LEDs are located on the right of the FIC (see FIC with Fast Ethernet Ports and FIC with Gigabit Ethernet Port). The circular red LED lights to indicate a critical condition that can result in a system shutdown. The triangular yellow LED lights to indicate a less severe condition that requires monitoring or maintenance. Both LEDs can be lit simultaneously.
To deactivate red and yellow alarms, you must clear the condition that caused the alarm.
Table 1 describes the alarm LEDs in more detail.
Table 1: Alarm LEDs
Shape | Color | State | Description |
| Red | On steadily | Critical alarm LED—Indicates a critical condition that can cause the router to stop functioning, such as component removal, failure, or overheating. |
| Yellow | On steadily | Warning alarm LED—Indicates a serious but nonfatal error condition, such as a maintenance alert or a significant increase in component temperature. |
Table 2 describes the FIC interface LEDs in more detail.
Table 2: FIC Interface LEDs
Label | Color | State | Description |
LINK | Green | On steadily | The port is online. |
ACTIVITY | Green | Blinking | The port is receiving data. |
Off | The port might be on, but is not receiving data. |
