ACMIB :: activeStratum

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsACMIBactiveStratum

activeStratum

Module: ACMIB

OID (symbolic): ACMIB::activeStratum

OID (numeric): 1.3.6.1.4.1.1751.2.18.17.12

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: Current status of the backup stratum card.

What is activeStratum?

This read-only OID identifies which stratum card is currently providing the master clock for the device (primary or backup). You monitor this to confirm automatic failover worked correctly when the primary failed, or to manually track which card is active. For example, a value of 1 means the primary stratum is active, while 2 means the backup has taken over.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1751.2.18.17.12
snmpwalk -v2c -c public <target> ACMIB::activeStratum

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.1751.2.18.17.12.1
snmpget -v2c -c public <target> ACMIB::activeStratum.1

Start monitoring Lucent/Nortel Access Concentrator (legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the ACMIB::activeStratum 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
1.3.6.1.4.1.1751.2.18.17stratumConfigACMIB
1.3.6.1.4.1.1751.2.18.17.12activeStratumACMIB