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Chapter 4
Troubleshooting the Installation
PRP Alphanumeric Message Displays
Note
OL-13832-01
The alphanumeric message displays are organized in two rows of four LED
characters each
(Figure
Figure 4-5
Alphanumeric Message Displays—Partial Front Panel
The alphanumeric message displays show router status messages during the boot
process, and after the boot process is complete.
During the boot process, the message displays are controlled directly by the
•
MBus module.
After the boot process, the message displays are controlled by Cisco IOS XR
•
software (through the MBus).
The alphanumeric message displays also provide information about different
levels of system operation, including the status of the PRP, router error messages,
and user-defined status and error messages
A list of all system and error messages appears in the Cisco IOS XR System Error
Messages publication.
Troubleshooting the Processor Subsystem
4-5).
Upper alphanumeric
LED display (four digits)
Lower alphanumeric
LED display (four digits)
Cisco XR 12410 Router Installation Guide
4-19
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Table of Contents
Troubleshooting
