IEEE802171-CFM-MIB :: dot1agCfmMepUnexpLtrIn

MIB Reference — IPNetwork Monitor · Updated September 09, 2026

All MIBsIEEE802171-CFM-MIBdot1agCfmMepUnexpLtrIn

dot1agCfmMepUnexpLtrIn

Module: IEEE802171-CFM-MIB

OID (symbolic): IEEE802171-CFM-MIB::dot1agCfmMepUnexpLtrIn

OID (numeric): 1.0.8802.1.1.3.1.6.1.1.30

Node type: OBJECT-TYPE

Type: Counter32

Access: read-only

Description: The total number of unexpected LTRs received (20.39.1).

What is dot1agCfmMepUnexpLtrIn?

Counts Linktrace Replies (LTRs) received by this MEP that were not expected, e.g. arriving after the relevant linktrace transaction had already completed or timed out. A rising count can indicate delayed responses from a congested or slow-to-reply intermediate device.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.0.8802.1.1.3.1.6.1.1.30
snmpwalk -v2c -c public <target> IEEE802171-CFM-MIB::dot1agCfmMepUnexpLtrIn

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.0.8802.1.1.3.1.6.1.1.30.1
snmpget -v2c -c public <target> IEEE802171-CFM-MIB::dot1agCfmMepUnexpLtrIn.1

Start monitoring Vendor-neutral IEEE 802.1ag standard (network device implementing CFM) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the IEEE802171-CFM-MIB::dot1agCfmMepUnexpLtrIn OID value, configure state conditions and alerts, and monitor any Vendor-neutral IEEE 802.1ag standard (network device implementing CFM) from a single console.

OID Breakdown

Upper-level ancestors (7 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.0stdSTART-MIB
1.0.8802iso8802START-MIB
1.0.8802.1ieee802dot1START-MIB
1.0.8802.1.1ieee802dot1mibsSTART-MIB
1.0.8802.1.1.3ieee8021SecyMIBIEEE8021-SECY-MIB
1.0.8802.1.1.3.1secyMIBObjectsIEEE8021-SECY-MIB
Numeric OIDNameModule
1.0.8802.1.1.3.1.6dot1agCfmMepIEEE802171-CFM-MIB
1.0.8802.1.1.3.1.6.1dot1agCfmMepTableIEEE802171-CFM-MIB
1.0.8802.1.1.3.1.6.1.1dot1agCfmMepEntryIEEE802171-CFM-MIB
1.0.8802.1.1.3.1.6.1.1.30dot1agCfmMepUnexpLtrInIEEE802171-CFM-MIB