Juniper EX2300-C Hardware Manual page 39

Table 6: Chassis Status LEDs in an EX2300 Switch (continued)
LED Label Color
Red
ALM
Yellow
Unlit
Green
MST
Copyright © 2017, Juniper Networks, Inc.
State and Description
There is a major alarm.
NOTE:
the alarm LED (
is normal. Plugging an active Ethernet cable
into the management port (
switch completes the network link and turns
off the
to a Network for Out-of-Band Management"
on page
Connecting the switch to a dedicated
management console instead of a network
does not affect the
red until the switch is connected to a network.
There is a minor alarm.
NOTE:
commit a configuration to make it active on
the switch without creating a rescue
configuration to back it up. To save the most
recently committed configuration as the rescue
configuration, enter the operational mode
command
save
There is no alarm or the switch is halted.
In a standalone EX2300 switch:
On steadily—The switch is functioning
normally as the master.
Off—The switch is powered off or is halted.
In a Virtual Chassis configuration:
On steadily—The switch is functioning
normally and is the master in the Virtual
Chassis configuration.
Blinking—The switch is functioning normally
and is the backup in the Virtual Chassis
configuration.
Off—The switch is a linecard member in the
Virtual Chassis configuration or is halted.
A major alarm (red) indicates a critical error condition that requires immediate action.
A minor alarm (yellow) indicates a noncritical condition that requires monitoring or
maintenance. A minor alarm that is left unchecked might cause interruption in service or
performance degradation.
All three LEDs can be lit simultaneously.
Chapter 2: Chassis Components and Descriptions
When you connect power to the switch,
) glows red. This behavior
ALM
MGMT
LED. (See "Connecting a Device
ALM
167.)
ALM LED. The LED remains
The ALM LED glows yellow if you
request system configuration rescue
.
) on the
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