Chassis Status Leds In Ex4200 Switches; Figure 10: Chassis Status Leds In An Ex4200 Switch; Table 6: Chassis Status Leds In An Ex4200 Switch - Juniper EX3200 Series Complete Hardware Manual

Complete Hardware Guide for EX3200 and EX4200 Ethernet Switches

Chassis Status LEDs in EX4200 Switches

Table 6: Chassis Status LEDs in an EX4200 Switch

LED Label
ALM (Alarm)
SYS (System)
MST (Master)
Related Topics
20
The front panel of an EX4200 switch has three LEDs on the far right side of the panel,
next to the LCD panel (see Figure 10 on page 20).

Figure 10: Chassis Status LEDs in an EX4200 Switch

Table 6 on page 20 describes the chassis status LEDs in an 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
Color
Unlit
Red
Amber
Green
Green
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.
All three LEDs can be lit simultaneously.
Front Panel of an EX4200 Switch on page 9
State and Description
There is no alarm.
There is a major alarm.
There is a minor alarm.
On steadily—Junos OS for 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.
Copyright © 2010, Juniper Networks, Inc.
.
show chassis lcd