Juniper MX150 - Network Port and Uplink Port Leds on MX150; Figure 5: Leds on the Network Port; Table 4: Chassis Status Leds in an MX150

Table 4: Chassis Status LEDs in an MX150
State and DescriptionColorLED Label
There is no alarm or the device is halted.UnlitALM (Alarm)
There is a major alarm.Red
There is a minor alarm.Amber
•
On steadily—Junos OS has been loaded on the device.
•
Blinking—The device is booting.
•
Off—The device is powered off or is halted.
GreenSYS (System)
•
On steadily—The device is functioning normally.
•
Off—The device is powered off or is halted.
GreenMST (Master)
This LED is not used. So, the status of this LED is off.UnlitPH
A major alarm (red) indicates a critical error condition that requires immediate action.
A minor alarm (amber) indicates a noncritical condition that requires monitoring or
maintenance. A minor alarm left unchecked might cause interruption in service or
performance degradation.
All three LEDs can be lit simultaneously.
Related
Documentation
Front Panel of an MX150 on page 5•
Network Port and Uplink Port LEDs on MX150
Each network port and uplink port on the front panel of an MX150 has two LEDs that
indicate link activity and port status (see Figure 5 on page 8).
Figure 5: LEDs on the Network Port
g041128
Link/
Activity
Status
Table 5 on page 9 describes the link activity of the LED.
Copyright © 2017, Juniper Networks, Inc.8
MX150 3D Universal Edge Router Hardware Guide