Dell PowerConnect J-EX4200 Hardware Manual page 33

Table 8: Chassis Status LEDs in a J-EX4200 Switch
LED Label Color
ALM (Alarm) Unlit
Red
Amber
SYS Green
(System)
MST Green
(Master)
Figure 6: Chassis Status LEDs in a J-EX4200 Switch
Table 8 on page 17 describes the chassis status LEDs in a J-EX4200 switch, their colors
and states, and the status they indicate. You can view the colors of the three LEDs
remotely through the CLI by issuing the operational mode command
State and Description
There is no alarm.
There is a major alarm.
NOTE: When you connect power to the switch, the Alarm (ALM) LED lights red to indicate that
the network link is disconnected. This behavior is normal. Plugging an active Ethernet cable into
the management (MGMT) port on the switch completes the network link and turns off the ALM
LED. (See "Connecting a J-EX Series Switch to a Network for Out-of-Band Management" on
page 120.)
Connecting the switch to a dedicated management console instead of a network does not affect
the ALM LED. The LED remains red until the switch is connected to a network.
There is a minor alarm.
NOTE: The Alarm (ALM) LED lights amber if you commit a configuration to make it active on the
switch and do not also create a rescue configuration to back it up. To save the most recently
committed configuration as the rescue configuration, enter the operational mode command
request system configuration rescue save
Ethernet Switch Complete Software Guide for Junos OS at
http://www.support.dell.com/manuals
On steadily—Junos OS for J-EX Series switches has been loaded on the switch.
Blinking—The switch is booting.
On steadily—The switch is the master in the Virtual Chassis configuration.
Blinking—The switch is the backup in the Virtual Chassis configuration.
Off—The switch is a linecard member in the Virtual Chassis configuration.
A major alarm (red) indicates a critical error condition that requires immediate action.
A minor alarm (amber) indicates a noncritical condition that requires monitoring or
maintenance. A minor alarm that is left unchecked might cause interruption in service or
performance degradation.
NOTE: The amber glow of the Alarm LED that indicates a minor alarm closely
resembles the red glow that indicates a major alarm.
Chapter 2: Component Descriptions
. For more information, see the Dell PowerConnect J-Series
.
.
show chassis lcd
17