Determining Hardware Status
5-4 SmartEdge 100 Router Hardware Guide
Table 5-1 lists the system equipment LEDs, which indicate current status of the system and the
compact-flash (CF) card.
The change in state of the SWAP LED is as follows:
• When a CF card is installed and you open the door, the SWAP LED state changes from “Off” to
“Blinking” until the unmounting process is complete. It then changes state to “On” to indicate that you
can safely remove the card.
• If the system cannot unmount the file system on the card, the SWAP LED changes back to “Off” (while
the door is still open) and the system displays an error message on the console.
• If you close the door without inserting a CF card in the slot, the LED remains “On”.
• If you insert a formatted CF card in the slot and close the door, the LED changes from “On” to
“Blinking” until the mounting process is complete. It then changes state to “Off”.
• If the system is unable to mount the file system on the CF card (for example, because it is unformatted
or the file system is damaged), the LED changes from “On” to “Blinking” and then, because the CF
card cannot be mounted, changes to “On” and the system displays an error message on the console.
Table 5-1 System Equipment LEDs
Label Activity Color Description
ALRM On Red A critical or major system alarm is active.
On Yellow A minor system alarm is active.
Off None No alarm is active.
STAT On Red Power-on diagnostics have failed since the last system initialization.
On Green Power-on diagnostics have passed.
Blinking Green System is initializing.
Off None Power is off or not present.
SWAP On Blue • The slot is empty, and it is safe to insert a CF card.
• The file system on the installed CF card is not mounted, and it is safe to remove
the CF card.
Blinking Blue A CF card is installed in the slot and the SmartEdge OS is mounting or
unmounting the file system.
Off None A CF card is installed, the file system is mounted, and the SmartEdge OS might
be transferring data to or from the CF card.
Caution Risk of data loss. You can lose data if you remove a CF card while the SWAP LED is blinking
or is off. To reduce the risk, remove a CF card from its slot only when the SWAP LED is on.
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