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Documentation
Copyright © 2018, Juniper Networks, Inc.
Table 38: M120 Control Board LEDs
Label
Color
Green
OK
Yellow
FAIL
Blue
MSTR
M120 Control Board (CB) Description on page 47
Maintaining the M120 Host Subsystem on page 266
Replacing an M120 CB on page 202
Chapter 5: Host Subsystem Components and Descriptions
State
Description
On steadily
Control board is functioning normally.
On steadily
Control board has failed.
On steadily
Control board is master.
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