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Front-Panel LEDs in EX3200 Switches

The front panel of an EX3200 switch has three LEDs on the far right side of the panel, next to the LCD panel (see Figure 1).

Figure 1: Front-Panel LEDs in an EX3200 Switch

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Table 1 describes the LEDs in an EX3200 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 show chassis lcd.

Table 1: Front-Panel LEDs in an EX3200 Switch

LED Label

Color

State and Description

ALM (Alarm)

Unlit

There is no alarm.

Red

There is a major alarm.

Amber

There is a minor alarm.

SYS (System)

Green

  • On steadily—JUNOS Software for EX Series switches has been loaded on the switch.
  • Blinking—The switch is booting.

MST (Master)

Green

This LED is always on and is meaningful only on EX4200 switches.

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.


Published: 2009-08-04

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