Unisphere-Data-ETHERNET-MIB :: usdEthernetIfDuplexMode

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › Unisphere-Data-ETHERNET-MIB › usdEthernetIfDuplexMode

usdEthernetIfDuplexMode

Module: Unisphere-Data-ETHERNET-MIB

OID (symbolic): Unisphere-Data-ETHERNET-MIB::usdEthernetIfDuplexMode

OID (numeric): 1.3.6.1.4.1.4874.2.2.34.1.1.1.1.2

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-write

Description: The configured duplex setting for this ethernet interface. The operational value is reported in this table entry's corresponding usdEthernetIfOperDuplexMode object.

NOTE, configuration dependency:

Setting this object to values other than 'autoDuplex' takes effect only when the corresponding usdEthernetIfSpeed object is simultaneously set to other than 'autoNegotiate'.

Otherwise (i.e. this object is set to 'autoDuplex', AND/OR corresponding usdEthernetIfSpeed object is set to 'autoNegotiate'), duplex mode is negotiated.

What is usdEthernetIfDuplexMode?

This read-write object holds the configured duplex mode for an Ethernet interface, chosen from autoDuplex, halfDuplex, or fullDuplex, while the interface's actual negotiated duplex state is reported separately in usdEthernetIfOperDuplexMode. A non-autoDuplex setting only takes effect if the paired usdEthernetIfSpeed object for the same interface is also set to a fixed speed rather than autoNegotiate. An admin managing link mismatches would set both objects together to force a specific duplex/speed combination, since leaving either one on auto causes the pair to be negotiated instead.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4874.2.2.34.1.1.1.1.2
snmpwalk -v2c -c public <target> Unisphere-Data-ETHERNET-MIB::usdEthernetIfDuplexMode

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.4874.2.2.34.1.1.1.1.2.1
snmpget -v2c -c public <target> Unisphere-Data-ETHERNET-MIB::usdEthernetIfDuplexMode.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.4874.2.2.34.1.1.1.1.2.1 i <value>

Start monitoring Unisphere Networks / Juniper ERX edge routers (Ethernet duplex/speed/MTU config status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the Unisphere-Data-ETHERNET-MIB::usdEthernetIfDuplexMode OID value, configure state conditions and alerts, and monitor any Unisphere Networks / Juniper ERX edge routers (Ethernet duplex/speed/MTU config status) from a single console.

OID Breakdown

Upper-level ancestors (14 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
1.3.6.1.4.1.4874juniperUniJuniper-UNI-SMI
1.3.6.1.4.1.4874.2juniperUniMibsJuniper-UNI-SMI
1.3.6.1.4.1.4874.2.2juniMibsJuniper-MIBs
1.3.6.1.4.1.4874.2.2.34juniEthernetMIBJuniper-ETHERNET-MIB
1.3.6.1.4.1.4874.2.2.34.1juniEthernetObjectsJuniper-ETHERNET-MIB
1.3.6.1.4.1.4874.2.2.34.1.1juniEthernetIfLayerJuniper-ETHERNET-MIB
1.3.6.1.4.1.4874.2.2.34.1.1.1juniEthernetIfTableJuniper-ETHERNET-MIB
1.3.6.1.4.1.4874.2.2.34.1.1.1.1juniEthernetIfEntryJuniper-ETHERNET-MIB
Numeric OIDNameModule
1.3.6.1.4.1.4874.2.2.34.1.1.1.1.2usdEthernetIfDuplexModeUnisphere-Data-ETHERNET-MIB