NBS-EFM-MIB :: nbsEfmOamLoopbackControlRx

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsNBS-EFM-MIBnbsEfmOamLoopbackControlRx

nbsEfmOamLoopbackControlRx

Module: NBS-EFM-MIB

OID (symbolic): NBS-EFM-MIB::nbsEfmOamLoopbackControlRx

OID (numeric): 1.3.6.1.4.1.629.300.1.3.1.1.21

Node type: OBJECT-TYPE

Type: Counter32

Access: read-only

Description: A count of OAMPDUs received that contain the Loopback Control code specified in Table 57-4. This counter is incremented on reception of a valid frame, with (1) destinationField equal to the reserved multicast address for Slow_Protocols specified in CROSS REF Table 43B-1, (2) lengthOrType field value equal to the reserved Type for Slow_Protocols as specified in CROSS REF Table 43B-2, (3) a Slow_Protocols subtype value equal to the subtype reserved for OAM as specified in Table 43B-3, (4) the OAM code equals the Loopback Control code and is supported by the device.

What is nbsEfmOamLoopbackControlRx?

This OID counts received OAMPDUs carrying the Loopback Control code (Table 57-4) that this device supports. An admin checks this to confirm the local device is receiving loopback control requests from its peer, e.g. during a remote-initiated loopback test.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.629.300.1.3.1.1.21
snmpwalk -v2c -c public <target> NBS-EFM-MIB::nbsEfmOamLoopbackControlRx

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.629.300.1.3.1.1.21.1
snmpget -v2c -c public <target> NBS-EFM-MIB::nbsEfmOamLoopbackControlRx.1

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OID Breakdown

Upper-level ancestors (12 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
1.3.6.1.4.1.629nbaseGSWITCH-MIB
1.3.6.1.4.1.629.300mrvEfmMibMRV-EFM-MIB
1.3.6.1.4.1.629.300.1mrvEfmObjectsMRV-EFM-MIB
1.3.6.1.4.1.629.300.1.3mrvEfmOamGrpMRV-EFM-MIB
1.3.6.1.4.1.629.300.1.3.1mrvEfmOamTableMRV-EFM-MIB
1.3.6.1.4.1.629.300.1.3.1.1mrvEfmOamEntryMRV-EFM-MIB
Numeric OIDNameModule
1.3.6.1.4.1.629.300.1.3.1.1.21nbsEfmOamLoopbackControlRxNBS-EFM-MIB