Juniper EX9253 Hardware Manual page 182

Table 38: Chassis Component Alarm Conditions on EX9253 Switches
Chassis Alarm Condition
Component
Alternative The switch boots from an
media alternate boot device, the
secondary SSD. The primary SSD
(SSD0) is typically the primary
boot device. The Routing Engine
boots from the secondary SSD
(SSD1) when the primary boot
device fails.
Line Cards A line card is offline.
A line card has failed.
A line card has been removed.
Fan trays A fan tray has been removed
from the chassis.
One fan in the chassis is not
spinning or is spinning below
required speed.
Hot swapping Too many hot-swap interrupts
are occurring. This message
generally indicates that a
hardware component that plugs
into the switch's backplane from
the front (generally, an FPC) is
broken.
Power supplies A power supply has been
removed from the chassis.
Alarm Remedy
Severity
Minor Open a support case using the Case
(yellow) Manager link at
support/ or call 1-888-314-5822 (toll free,
US & Canada) or 1-408-745-9500 (from
outside the United States).
Minor Check the line card. Remove and reinstall
(yellow) the line card. If this fails, replace the failed
card.
Major (red) Replace the failed line card.
Major (red) Install a line card in the empty slot.
Major (red) Install the missing fan tray.
Major (red) Replace the fan tray.
Major (red) Replace the failed components.
Minor Install a power supply in the empty slot.
(yellow)
https:/ /www.juniper.net/
173