Juniper Networks 5000 SERIES manual Interpreting Status LEDs for the Management Modules

MODULE LED DESCRIPTIONS

This section provides descriptions of the LEDs on NetScreen-5000 Series modules. Two types of LEDs exist on the modules:

•Status LEDs. These LEDs reflect certain conditions that exist on the system at large and do not explicitly refer to a given port.

•Port LEDs. These LEDs reflect basic conditions (for example, a link connection status) that exist for a specific port.

STATUS LED STATES

This section describes Status LED states on all modules.

Interpreting Status LEDs for the Management Modules

The Status LEDs indicate whether the management module is operating properly. The following table describes the status possibilities for each.

LED	LED Color	Meaning of the LED
CPU	green	Consists of an array of five LEDs that indicate the current level of
Utilization		CPU utilization. Utilization is defined as the amount of traffic
		detected on the device at any given time. The CPU utilization LEDs
		represent the following percentages of possible utilization: 5%, 10%,
		25%, 50%, and 90%.
	off	When all are off, indicates less than 5 percent CPU use.
POWER	green	Indicates the system is receiving power.
	off	Indicates the system is not receiving power.
	red	Indicates the power has a problem.
STATUS	blinking	Indicates the system is operational.
	green
	blinking	Indicates the system is booting up.
	amber
	off	Indicates the module is not operational.
HA	green	Indicates the module is a master in a redundancy cluster.
	red	Indicates the module is ineligible to be a backup.
	amber	Indicates the module is a backup in a redundancy cluster.
	off	Indicates that no HA activity has been defined.
ALARM	red	Indicates an alarm which could mean a system failure.
	blinking red	Indicates a self-test failure during the bootup process.

NetScreen-5000 Series 47