All MIBs › CTIF-EXT-MIB › ctIfDuplex
ctIfDuplex
Module: CTIF-EXT-MIB
OID (symbolic): CTIF-EXT-MIB::ctIfDuplex
OID (numeric): 1.3.6.1.4.1.52.4.3.3.2.1.1.5
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: Defines the duplex mode that the interface is set to operate in.
For devices that do not support this capability:
- a read will return standard(2).
- any write attempt will return BADVALUE.
- fast ethernet devices will report other(1).
What is ctIfDuplex?
This read-write enumerated value sets the duplex mode (other, standard, or full) an interface operates in; unsupported devices always read standard(2), and fast Ethernet devices report other(1). An admin adjusts it to resolve performance problems caused by a duplex mismatch. For example, an admin sets ctIfDuplex to full(3) on an interface after noticing high collision counts caused by a duplex mismatch with the connected switch.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.52.4.3.3.2.1.1.5 snmpwalk -v2c -c public <target> CTIF-EXT-MIB::ctIfDuplex
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.52.4.3.3.2.1.1.5.1 snmpget -v2c -c public <target> CTIF-EXT-MIB::ctIfDuplex.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.52.4.3.3.2.1.1.5.1 i <value>
Start monitoring Cabletron/Enterasys switch/hub (legacy, per-port IF-MIB extension) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CTIF-EXT-MIB::ctIfDuplex OID value, configure state conditions and alerts, and monitor any Cabletron/Enterasys switch/hub (legacy, per-port IF-MIB extension) from a single console.
OID Breakdown
Upper-level ancestors (10 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 |
| 1.3.6.1.4.1.52 | cabletron | Cabletron-MIB |
| 1.3.6.1.4.1.52.4 | mibs | CTRON-AP3000-MIB |
| 1.3.6.1.4.1.52.4.3 | ctronExtn | CTRON-MIB-NAMES |
| 1.3.6.1.4.1.52.4.3.3 | ctronMib2 | CTRON-MIB-NAMES |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.52.4.3.3.2 | ctIf | CTIF-EXT-MIB |
| 1.3.6.1.4.1.52.4.3.3.2.1 | ctIfTable | CTIF-EXT-MIB |
| 1.3.6.1.4.1.52.4.3.3.2.1.1 | ctIfEntry | CTIF-EXT-MIB |
| 1.3.6.1.4.1.52.4.3.3.2.1.1.5 | ctIfDuplex | CTIF-EXT-MIB |