Figure 8: Led Display In Idle Mode; Figure 9: Led Display In Alarm Mode - Juniper M320 Hardware Manual

Copyright © 2015, Juniper Networks, Inc.
During normal operation, the LED display operates in idle mode and reports current status
information, as shown in Figure 8 on page

Figure 8: LED Display in Idle Mode

The lines in the display report the following information:
First line—Router name.
Second line—Length of time the router has been running, reported in the following
form:
Up days + hours:minutes
Third and fourth lines—Status messages, which rotate at 2-second intervals. Some
conditions, such as removal or insertion of a system component, can interrupt the
messages.
To add a message that alternates every 2 seconds with the default status messages,
use the
set chassis display message
When a red or yellow alarm occurs, the LED display switches to alarm mode and reports
about the alarm condition, as shown in

Figure 9: LED Display in Alarm Mode

The lines in the display report the following information:
First line—Router name.
Second line—Number of active alarms.
Third and fourth lines—Individual alarm messages, with the most severe condition
shown first. The prefix on each line indicates whether the alarm is a red (
alarm.
For a list of alarm messages that can appear on the LED display, see
Interface Alarm Messages" on page
Chapter 3: Chassis Components and Descriptions
17.
command. For more information, see the
Figure 9 on page 17.
285.
.
CLI Explorer
) or yellow ( )
R Y
"M320 Chassis and
17