Monitoring critical, major, and minor alarm status – Cisco XR 12410 User Manual
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Chapter 4 Troubleshooting the Installation
Troubleshooting the Processor Subsystem
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Cisco XR 12410 and Cisco XR 12810 Router Installation Guide
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Monitoring Critical, Major, and Minor Alarm Status
The alarms can warn of an overtemperature condition:
•
On a component in the card cage
•
A fan failure in a blower module
•
An overcurrent condition in a power supply
•
An out-of-tolerance voltage on one of the cards
The alarm LEDs are controlled by MBus software, which sets the threshold levels
for triggering the different stages of alarms.
The RP continuously polls the system for temperature, voltage, current, and fan
speed values. If a threshold value is exceeded, the RP sets the appropriate alarm
severity level on the alarm card which lights the corresponding LED, and
energizes the appropriate alarm display relays to activate any external audible or
visual alarms wired to the alarm display. The RP also logs a message about the
threshold violation on the system console.
Note
If one or more of the alarm LEDs is on, check the system console for messages
describing the alarm.