At the upper right corner of the craft interface (see Figure 11) are two sets of LEDs that indicate host module status: the set labeled HOST0 reports the status of the Routing Engine in slot RE 0 and MCS in slot MCS 0, and the set labeled HOST1 reports the status of the Routing Engine in slot RE 1 and the MCS in slot MCS 1. Each set includes three LEDs—a green one labeled MASTER, another green one labeled ONLINE, and a red one labeled OFFLINE. Table 10 describes the LED states.
Table 10: States for Host Module LEDs