Juniper MX2010, Hardware Manual

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Troubleshooting the MX2010 Host Subsystems
Problem
Description: The following alarms and LEDs indicate a problem with a host subsystem Control Board and
Routing Engine (CB-RE):
•
A red alarm indicates that the host subsystem has been removed.
•
The red host subsystem OFFLINE LED on the craft interface is lit.
•
The green host subsystem ONLINE LED on the craft interface is not lit.
Solution
To troubleshooting the host subsystems:
1. Check the LEDs on the faceplate of each CB-RE.
2. Check the LEDs on the craft interface.
3. Use the CLI to check the alarms.
•
Issue the show chassis alarms command to view the alarms.
RELATED DOCUMENTATION
MX2000 Host Subsystem CB-RE Description | 51
MX2010 Craft Interface Description | 29
Troubleshooting the MX2000 Router Power System
Problem
Description: The following alarms, LEDs, and other conditions indicate a problem with the AC or DC power
system:
•
If all AC or DC power supply modules (PSMs) have failed, the system temperature might have exceeded
the threshold, causing the system to shut down. See Step 9 for instructions on how to restart a
high-capacity AC or DC PSM after a shut down due to an over-temperature situation.
•
The yellow PWR OK LED blinks when an AC or a DC PSM is out of the power limit or is in an overcurrent
condition.
•
The red FAULT LED lights when the PSM is not receiving enough airflow to maintain the proper
temperature.
•
The red FAULT LED lights when the AC or DC output voltages are not within range.
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