IEC-62439-3-MIB :: lreCntDuplicateA

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › IEC-62439-3-MIB › lreCntDuplicateA

lreCntDuplicateA

Module: IEC-62439-3-MIB

OID (symbolic): IEC-62439-3-MIB::lreCntDuplicateA

OID (numeric): 1.0.62439.2.21.1.1.0.1.1.19

Node type: OBJECT-TYPE

Type: Counter32

Access: read-only

Description: number of entries in the duplicate detection mechanism on port A for which one single duplicate was received. Initial value 0.

What is lreCntDuplicateA?

This Counter32 counts entries in the duplicate-detection mechanism on port A for which exactly one duplicate frame was received, the expected behavior in healthy PRP/HSR operation. Admins expect this to be the dominant count relative to lreCntUniqueA and lreCntMultiA when both redundant networks are functioning normally.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.0.62439.2.21.1.1.0.1.1.19
snmpwalk -v2c -c public <target> IEC-62439-3-MIB::lreCntDuplicateA

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.0.62439.2.21.1.1.0.1.1.19.1
snmpget -v2c -c public <target> IEC-62439-3-MIB::lreCntDuplicateA.1

Start monitoring Vendor-neutral industrial Ethernet switches with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the IEC-62439-3-MIB::lreCntDuplicateA OID value, configure state conditions and alerts, and monitor any Vendor-neutral industrial Ethernet switches from a single console.

OID Breakdown

Upper-level ancestors (2 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.0stdSTART-MIB
Numeric OIDNameModule
1.0.62439iec62439IEC-62439-3-MIB
1.0.62439.2prpIEC-62439-3-MIB
1.0.62439.2.21linkRedundancyEntityObjectsIEC-62439-3-MIB
1.0.62439.2.21.1lreStatisticsIEC-62439-3-MIB
1.0.62439.2.21.1.1lreStatisticsInterfaceGroupIEC-62439-3-MIB
1.0.62439.2.21.1.1.0lreStatisticsInterfacesIEC-62439-3-MIB
1.0.62439.2.21.1.1.0.1lreInterfaceStatsTableIEC-62439-3-MIB
1.0.62439.2.21.1.1.0.1.1lreInterfaceStatsEntryIEC-62439-3-MIB
1.0.62439.2.21.1.1.0.1.1.19lreCntDuplicateAIEC-62439-3-MIB