USR-FR-EXT-MIB :: usrfrExtErrLMIInvControlField

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › USR-FR-EXT-MIB › usrfrExtErrLMIInvControlField

usrfrExtErrLMIInvControlField

Module: USR-FR-EXT-MIB

OID (symbolic): USR-FR-EXT-MIB::usrfrExtErrLMIInvControlField

OID (numeric): 1.3.6.1.4.1.429.4.64.6.1.21

Node type: OBJECT-TYPE

Type: Counter32

Access: read-only

Description: Number of LMI frames with invalid Control Field received on this DLL.

What is usrfrExtErrLMIInvControlField?

Counts LMI frames received on this interface with an invalid Control field, another indicator of malformed LMI signaling.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.429.4.64.6.1.21
snmpwalk -v2c -c public <target> USR-FR-EXT-MIB::usrfrExtErrLMIInvControlField

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.429.4.64.6.1.21.1
snmpget -v2c -c public <target> USR-FR-EXT-MIB::usrfrExtErrLMIInvControlField.1

Start monitoring CommWorks/3Com Frame Relay access/DTE equipment (PTMP group-membership config status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the USR-FR-EXT-MIB::usrfrExtErrLMIInvControlField OID value, configure state conditions and alerts, and monitor any CommWorks/3Com Frame Relay access/DTE equipment (PTMP group-membership config status) from a single console.

OID Breakdown

Upper-level ancestors (9 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
1.3.6.1.4.1.429usrANIC-MIB
1.3.6.1.4.1.429.4commonHDR2-MIB
1.3.6.1.4.1.429.4.64usrFRExtUSR-DEFINITIONS-MIB
Numeric OIDNameModule
1.3.6.1.4.1.429.4.64.6usrfrExtErrTableUSR-FR-EXT-MIB
1.3.6.1.4.1.429.4.64.6.1usrfrExtErrEntryUSR-FR-EXT-MIB
1.3.6.1.4.1.429.4.64.6.1.21usrfrExtErrLMIInvControlFieldUSR-FR-EXT-MIB