All MIBs › IB-SMA-MIB › ibSmaPortNeighborMtu
ibSmaPortNeighborMtu
Module: IB-SMA-MIB
OID (symbolic): IB-SMA-MIB::ibSmaPortNeighborMtu
OID (numeric): 1.3.6.1.3.117.3.1.5.1.1.12
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-only
Description: Active maximum MTU enabled on this port for transmit: 1: 256 bytes 2: 512 bytes 3: 1024 bytes 4: 2048 bytes 5: 4096 bytes 0, 6 - 15: reserved
What is ibSmaPortNeighborMtu?
The active maximum transmit MTU this port is using toward its link neighbor (256, 512, 1024, 2048, or 4096 bytes). A mismatch between neighboring ports' negotiated MTU is a common cause of unexpectedly fragmented or dropped large transfers.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.3.117.3.1.5.1.1.12 snmpwalk -v2c -c public <target> IB-SMA-MIB::ibSmaPortNeighborMtu
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.3.117.3.1.5.1.1.12.1 snmpget -v2c -c public <target> IB-SMA-MIB::ibSmaPortNeighborMtu.1
Start monitoring InfiniBand switch/host channel adapter (HCA), Subnet Management Agent with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the IB-SMA-MIB::ibSmaPortNeighborMtu OID value, configure state conditions and alerts, and monitor any InfiniBand switch/host channel adapter (HCA), Subnet Management Agent 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 |
| 1.3.6.1.3 | experimental | APERTUS-NPG-MIB |
| 1.3.6.1.3.117 | pm | IB-PM-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.3.117.3 | ibSmaMIB | IB-SMA-MIB |
| 1.3.6.1.3.117.3.1 | ibSmaObjects | IB-SMA-MIB |
| 1.3.6.1.3.117.3.1.5 | ibSmaDataPortInfo | IB-SMA-MIB |
| 1.3.6.1.3.117.3.1.5.1 | ibSmaPortInfoTable | IB-SMA-MIB |
| 1.3.6.1.3.117.3.1.5.1.1 | ibSmaPortInfoEntry | IB-SMA-MIB |
| 1.3.6.1.3.117.3.1.5.1.1.12 | ibSmaPortNeighborMtu | IB-SMA-MIB |