Use nagios to flag major and minor alarms in Juniper equipment. These are events that will illuminate the red and yellow alarm leds on the front of Juniper equipment

Insert the following into your /etc/nagios/commands.cfg file

define command {
        command_name                    check_juniper_major
        command_line                    $USER1$/check_snmp -H $HOSTADDRESS$ -C $ARG1$ -o 1.3.6.1.4.1.2636.3.4.2.3.1.0 -c 2.5
        register                        1
}       

define command {
        command_name                    check_juniper_minor
        command_line                    $USER1$/check_snmp -H $HOSTADDRESS$ -C $ARG1$ -o 1.3.6.1.4.1.2636.3.4.2.2.1.0 -c 2.5
        register                        1
}       

$ARG1$ is the snmp community string.

Reference:

https://www.juniper.net/documentation/software/topics/concept/mib-jnx-chassis-alarm.txt

    jnxYellowAlarms 	  OBJECT IDENTIFIER ::= { jnxCraftAlarms 2 }

    jnxYellowAlarmState OBJECT-TYPE
	SYNTAX		INTEGER {
			other(1),	-- alarm state is unknown
			off(2),		-- alarm is off
			on(3)		-- alarm is on
	}
	MAX-ACCESS	read-only
	STATUS		current
	DESCRIPTION
		"The yellow alarm state on the craft interface 
		panel.

		The yellow alarm is on when there is some 
		system warning such as maintenance alert or 
		significant temperature increase.

		This yellow alarm state could be turned off 
		by the ACO/LT (Alarm Cut Off / Lamp Test) button
		on the front panel module."


	::= { jnxYellowAlarms 1 }

   jnxRedAlarms 	  OBJECT IDENTIFIER ::= { jnxCraftAlarms 3 }

    jnxRedAlarmState OBJECT-TYPE
	SYNTAX		INTEGER {
			other(1),	-- alarm state is unknown
			off(2),		-- alarm is off
			on(3)		-- alarm is on
	}
	MAX-ACCESS	read-only
	STATUS		current
	DESCRIPTION
		"The red alarm indication on the craft interface 
		panel.

		The red alarm is on when there is some system 
		failure or power supply failure or the system 
		is experiencing a hardware malfunction or some 
		threshold is being exceeded.

		This red alarm state could be turned off by the
		ACO/LT (Alarm Cut Off / Lamp Test) button on the
		front panel module."


	::= { jnxRedAlarms 1 }