Juniper EX9253 Hardware Manual page 186

Table 38: Chassis Component Alarm Conditions on EX9253 Switches
Chassis Alarm Condition
Component
The temperature has exceeded
the defined threshold for the
Fire Shutdown
the output of
temperature-thresholds
command.
The temperature sensor has
failed.
Backup Routing Engine Alarms
For switches with primary and backup Routing Engines, a primary Routing Engine can generate alarms
for events that occur on a backup Routing Engine.
for events that occur on a backup Routing Engine.
NOTE: Because the failure occurs on the backup Routing Engine, alarm severity for some events
(such as Ethernet interface failures) is yellow instead of red.
NOTE: For information about configuring redundant Routing Engines, see the
Availability Library for Routing
Alarm
Severity
Major (red)
condition listed in
show chassis
Major (red)
Table 39 on page 178
Devices.
(Continued)
Remedy
•
Check room temperature.
•
Check air filter and replace it, if
required.
•
Check airflow.
•
Check fans.
Open a support case using the Case
Manager link at https:/ /www.juniper.net/
support/ or call 1-888-314-5822 (toll free,
US & Canada) or 1-408-745-9500 (from
outside the United States).
lists chassis alarms generated
Junos OS High
177