HH3C-EFM-COMMON-MIB :: hh3cDot3OamLoopbackControlTx

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsHH3C-EFM-COMMON-MIBhh3cDot3OamLoopbackControlTx

hh3cDot3OamLoopbackControlTx

Module: HH3C-EFM-COMMON-MIB

OID (symbolic): HH3C-EFM-COMMON-MIB::hh3cDot3OamLoopbackControlTx

OID (numeric): 1.3.6.1.4.1.25506.2.42.3.1.4.1.7

Node type: OBJECT-TYPE

Type: Counter32

Access: read-only

Description: A count of the number of Loopback Control OAMPDUs transmitted on this interface.

An Loopback Conrol OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) a Slow Protocols subtype equal to that of the subtype reserved for OAM, and (4) an OAMPDU code equals the OAM Loopback Control code.

Discontinuities of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of the ifCounterDiscontinuityTime.

What is hh3cDot3OamLoopbackControlTx?

A running count of Loopback Control OAMPDUs transmitted on this interface — the frames used to start or stop remote loopback via hh3cDot3OamLoopbackCommand. Admins can check this counter to confirm a loopback command was actually sent onto the wire.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.25506.2.42.3.1.4.1.7
snmpwalk -v2c -c public <target> HH3C-EFM-COMMON-MIB::hh3cDot3OamLoopbackControlTx

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.25506.2.42.3.1.4.1.7.1
snmpget -v2c -c public <target> HH3C-EFM-COMMON-MIB::hh3cDot3OamLoopbackControlTx.1

SNMPv3 example:

snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> hh3cDot3OamLoopbackControlTx.1

Start monitoring H3C Ethernet access switches with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the HH3C-EFM-COMMON-MIB::hh3cDot3OamLoopbackControlTx OID value, configure state conditions and alerts, and monitor any H3C Ethernet access switches 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
1.3.6.1.4.1.25506hh3cHH3C-OID-MIB
1.3.6.1.4.1.25506.2hh3cCommonHH3C-OID-MIB
1.3.6.1.4.1.25506.2.42hh3cEponHH3C-OID-MIB
Numeric OIDNameModule
1.3.6.1.4.1.25506.2.42.3hh3cEfmOamMIBHH3C-EFM-COMMON-MIB
1.3.6.1.4.1.25506.2.42.3.1hh3cDot3OamMIBHH3C-EFM-COMMON-MIB
1.3.6.1.4.1.25506.2.42.3.1.4hh3cDot3OamStatsTableHH3C-EFM-COMMON-MIB
1.3.6.1.4.1.25506.2.42.3.1.4.1hh3cDot3OamStatsEntryHH3C-EFM-COMMON-MIB
1.3.6.1.4.1.25506.2.42.3.1.4.1.7hh3cDot3OamLoopbackControlTxHH3C-EFM-COMMON-MIB