Step 3: Check the SIB LED Status on the Faceplate

Action

To check the SIB LED status, remove the component cover and look on the SIB faceplate at the back of the T320 router and the T640 routing node (see Figure 135).

Table 80 describes the SIB LED states.

Table 80: SIB LEDs

Label	Color	State	Description
OK	Green	On steadily	SIB is functioning normally.
		Blinking	SIB is starting up.
FAIL	Amber	On steadily	SIB has failed.
ACTIVE	Green	On steadily	SIB is in active mode.