All MIBs › ACMIB › ethernetDuplexMode
ethernetDuplexMode
Module: ACMIB
OID (symbolic): ACMIB::ethernetDuplexMode
OID (numeric): 1.3.6.1.4.1.1751.2.18.2.13.1.5
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: Set the port to either be in full or half duplex. You can also set the port to auto detect the mode it is connected to.
What is ethernetDuplexMode?
Controls whether the ethernet port operates in full-duplex (simultaneous send/receive), half-duplex (alternating send/receive), or auto-detect mode. Correct duplex configuration prevents performance problems and collisions, with most modern networks using full-duplex auto-negotiation. Example: If connecting to an old hub instead of a switch, set this to "half-duplex" to prevent frame collisions, while modern switches use "auto" for automatic negotiation.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1751.2.18.2.13.1.5 snmpwalk -v2c -c public <target> ACMIB::ethernetDuplexMode
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.1751.2.18.2.13.1.5.1 snmpget -v2c -c public <target> ACMIB::ethernetDuplexMode.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.1751.2.18.2.13.1.5.1 i <value>
Start monitoring Lucent/Nortel Access Concentrator (legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the ACMIB::ethernetDuplexMode OID value, configure state conditions and alerts, and monitor any Lucent/Nortel Access Concentrator (legacy) from a single console.
OID Breakdown
Upper-level ancestors (6 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.1751 | lucent | ACMIB |
| 1.3.6.1.4.1.1751.2 | mibs | ACMIB |
| 1.3.6.1.4.1.1751.2.18 | acMIB | ACMIB |
| 1.3.6.1.4.1.1751.2.18.2 | equipConfig | ACMIB |
| 1.3.6.1.4.1.1751.2.18.2.13 | ethernetPortConfigTable | ACMIB |
| 1.3.6.1.4.1.1751.2.18.2.13.1 | ethernetPortConfigEntry | ACMIB |
| 1.3.6.1.4.1.1751.2.18.2.13.1.5 | ethernetDuplexMode | ACMIB |