Juniper EX4300 Series

Chassis Component Alarm Condions on EX4300 Switches
This topic describes the chassis component alarm condions on EX4300 switches.
Table 90 on page 322 lists the alarms that the chassis components can generate on EX4300 switches,
their severity levels, and the acons you can take to respond to them.
Table 90: Chassis Component Alarm Condions on EX4300 Switches
Chassis Component Alarm Condion Alarm Severity Remedy
Power supplies A power supply has
been removed from
the chassis.
Minor (yellow
or amber)
Install a power supply in the empty slot.
A power supply
output has failed.
Major (red) Check power supply output connecon.
A power supply has
failed.
Major (red) Replace the failed power supply.
An unknown power
supply is installed.
Major (red) Install a power supply recommended by Juniper
Networks.
Mix of power
supplies with
dierent airow
direcons.
Major (red) Do not mix power supplies with dierent
direcons for the airow in the same chassis.
Mix of fan modules
and power supplies
with dierent
airow direcons.
Major (red) Do not mix fan modules and power supplies
with dierent direcons for the airow in the
same chassis.
Fan modules Fan module is not
installed.
Major (red) Install the fan module.
A fan module has
failed.
Major (red) Replace the fan module.
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