JUNOS Internet Software Network Operations Guide: Hardware
364 ! Checking the MCS Status
Table 87 describes the functions of the host module LEDs.
Table 87: Host Module LEDs
Step 3: Check the MCS LEDs
Action To check the MCS status, look at the LEDs on the MCS faceplate.
Table 88 describes the functions of these LEDs.
Table 88: MCS LEDs
When the MCS is functioning normally, the green OK LED remains on steadily. If the
amber
FAIL LED is on, check for MCS alarms.
Label Shape Color State Description
MASTER Green On steadily Host module (Routing Engine and MCS)
is functioning as master.
ONLINE Green On steadily Host module is present and operational.
Blinking Host module is starting up.
OFFLINE Red On steadily Host module is not present, or is
present
but not operational.
Color Label State Description
Blue MASTER On steadily MCS is master.
Green
OK On steadily MCS is operating normally.
Blinking MCS is starting up.
Amber
FAIL On steadily MCS has failed.
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