TN-MGMT-MIB :: tnEthInterfaceDuplex

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsTN-MGMT-MIBtnEthInterfaceDuplex

tnEthInterfaceDuplex

Module: TN-MGMT-MIB

OID (symbolic): TN-MGMT-MIB::tnEthInterfaceDuplex

OID (numeric): 1.3.6.1.4.1.868.2.5.3.1.2.1.1.2

Node type: OBJECT-TYPE

Type: TNEthernetDuplex

Access: read-write

Description: When autonegotiation is disabled, this can be used to set the interface duplex. Refer the MAU-MIB is used for autonegotiation configuration.

What is tnEthInterfaceDuplex?

This OID controls whether a network port runs in half-duplex mode (take-turns sending) or full-duplex mode (simultaneous send and receive). You can manually set this when automatic negotiation is disabled. An operator would change this to fix link problems when the port fails to auto-detect the correct duplex mode.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.868.2.5.3.1.2.1.1.2
snmpwalk -v2c -c public <target> TN-MGMT-MIB::tnEthInterfaceDuplex

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.868.2.5.3.1.2.1.1.2.1
snmpget -v2c -c public <target> TN-MGMT-MIB::tnEthInterfaceDuplex.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.868.2.5.3.1.2.1.1.2.1 s <value>

Start monitoring Transition Networks media conversion/networking products, entire product line (device naming/uptime/reset status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the TN-MGMT-MIB::tnEthInterfaceDuplex OID value, configure state conditions and alerts, and monitor any Transition Networks media conversion/networking products, entire product line (device naming/uptime/reset 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
1.3.6.1.4.1.868transitionTRANSITION-SMI
1.3.6.1.4.1.868.2productsTRANSITION-SMI
1.3.6.1.4.1.868.2.5tnProductsTRANSITION-SMI
Numeric OIDNameModule
1.3.6.1.4.1.868.2.5.3tnMgmtMIBTN-MGMT-MIB
1.3.6.1.4.1.868.2.5.3.1tnMgmtObjectsTN-MGMT-MIB
1.3.6.1.4.1.868.2.5.3.1.2tnInterfaceMgmtTN-MGMT-MIB
1.3.6.1.4.1.868.2.5.3.1.2.1tnEthInterfaceTableTN-MGMT-MIB
1.3.6.1.4.1.868.2.5.3.1.2.1.1tnEthInterfaceEntryTN-MGMT-MIB
1.3.6.1.4.1.868.2.5.3.1.2.1.1.2tnEthInterfaceDuplexTN-MGMT-MIB