All MIBs › IB-IF-MIB › ibIfPortStatNeighMTUDiscards
ibIfPortStatNeighMTUDiscards
Module: IB-IF-MIB
OID (symbolic): IB-IF-MIB::ibIfPortStatNeighMTUDiscards
OID (numeric): 1.3.6.1.3.117.2.1.1.1.10
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: Total number of outbound packets discarded by the port because packet length exceeded the neighbor MTU.
What is ibIfPortStatNeighMTUDiscards?
This counter tracks outbound packets discarded because their length exceeded the MTU configured on the neighboring port. A climbing count signals an MTU mismatch between adjacent InfiniBand devices, which an admin would need to correct to stop packet loss. An admin seeing this counter increase would check and align the MTU settings between this port and its directly connected neighbor.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.3.117.2.1.1.1.10 snmpwalk -v2c -c public <target> IB-IF-MIB::ibIfPortStatNeighMTUDiscards
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.3.117.2.1.1.1.10.1 snmpget -v2c -c public <target> IB-IF-MIB::ibIfPortStatNeighMTUDiscards.1
Start monitoring Server/storage/switch with InfiniBand/IPoIB interfaces (vendor-neutral IETF standard) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the IB-IF-MIB::ibIfPortStatNeighMTUDiscards OID value, configure state conditions and alerts, and monitor any Server/storage/switch with InfiniBand/IPoIB interfaces (vendor-neutral IETF standard) 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 |
|---|---|---|
| 1.3.6.1.3.117.2 | ibIfMIB | IB-IF-MIB |
| 1.3.6.1.3.117.2.1 | ibIfObjects | IB-IF-MIB |
| 1.3.6.1.3.117.2.1.1 | ibIfPortStatTable | IB-IF-MIB |
| 1.3.6.1.3.117.2.1.1.1 | ibIfPortStatEntry | IB-IF-MIB |
| 1.3.6.1.3.117.2.1.1.1.10 | ibIfPortStatNeighMTUDiscards | IB-IF-MIB |