ACMIB :: alarmSeverityLevelBitmap

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsACMIBalarmSeverityLevelBitmap

alarmSeverityLevelBitmap

Module: ACMIB

OID (symbolic): ACMIB::alarmSeverityLevelBitmap

OID (numeric): 1.3.6.1.4.1.1751.2.18.21.3

Node type: OBJECT-TYPE

Type: OCTET STRING

Access: read-write

Description: Alarm severity level. bit = 0 noAlarm, bit = 1 Alarm present,

LSB 3 bits represent severity levels. bit 0 = Minor Alarm, bit 1 = Major Alarm, bit 2 = Critical Alarm.

What is alarmSeverityLevelBitmap?

This OID holds flags for the current alarm state: bit 0 for Minor, bit 1 for Major, and bit 2 for Critical alarms. Engineers use this to determine the severity level of active alarms and configure automated responses based on criticality. A value of 0x04 indicates a Critical alarm is present, while 0x02 indicates a Major alarm.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1751.2.18.21.3
snmpwalk -v2c -c public <target> ACMIB::alarmSeverityLevelBitmap

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.1751.2.18.21.3.1
snmpget -v2c -c public <target> ACMIB::alarmSeverityLevelBitmap.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.1751.2.18.21.3.1 s <value>

Start monitoring Lucent/Nortel Access Concentrator (legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the ACMIB::alarmSeverityLevelBitmap OID value, configure state conditions and alerts, and monitor any Lucent/Nortel Access Concentrator (legacy) from a single console.

OID Breakdown

Upper-level ancestors (6 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
Numeric OIDNameModule
1.3.6.1.4.1.1751lucentACMIB
1.3.6.1.4.1.1751.2mibsACMIB
1.3.6.1.4.1.1751.2.18acMIBACMIB
1.3.6.1.4.1.1751.2.18.21alarmConfigACMIB
1.3.6.1.4.1.1751.2.18.21.3alarmSeverityLevelBitmapACMIB