Check the M320 Router Routing Engine LEDs

Figure 49 shows the host module LEDs on the M320 router craft interface.

Figure 49: M320 Router Redundant Host Module LEDs

Each host subsystem has three LEDs, located in the middle of the craft interface, that indicate status. The LEDs labeled RE0 show the status of the Routing Engine in slot RE0 and the Control Board in slot CB0. The LEDs labeled RE1 show the status of the Routing Engine in slot RE1 and the Control Board in slot CB1. Table 40 describes the functions of the host subsystem LEDs.

Table 40: M320 Router Host Subsystem LEDs

Label	Color	State	Description
FAIL	Red	On steadily	Host module is offline.
OK	Green	On steadily	Host module is online and functioning normally.
MASTER	Green	On steadily	Host module is functioning as master.