MULTIBRIDGE-MIB :: mBrdgBasePortMtuExceededDiscards

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsMULTIBRIDGE-MIBmBrdgBasePortMtuExceededDiscards

mBrdgBasePortMtuExceededDiscards

Module: MULTIBRIDGE-MIB

OID (symbolic): MULTIBRIDGE-MIB::mBrdgBasePortMtuExceededDiscards

OID (numeric): 1.3.6.1.4.1.123.3.43.1.2.1.5

Node type: OBJECT-TYPE

Type: Counter32

Access: read-only

Description: The number of frames discarded by this port due to an excessive size. It is incremented by both transparent and source route bridges.

What is mBrdgBasePortMtuExceededDiscards?

This counter tracks how many frames this port discarded because they exceeded the maximum allowed frame size, incremented by both transparent and source-route bridging. An admin checks this to catch an MTU mismatch between segments connected through this bridge port.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.123.3.43.1.2.1.5
snmpwalk -v2c -c public <target> MULTIBRIDGE-MIB::mBrdgBasePortMtuExceededDiscards

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.123.3.43.1.2.1.5.1
snmpget -v2c -c public <target> MULTIBRIDGE-MIB::mBrdgBasePortMtuExceededDiscards.1

Start monitoring Newbridge Networks multiservice switching platforms with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the MULTIBRIDGE-MIB::mBrdgBasePortMtuExceededDiscards OID value, configure state conditions and alerts, and monitor any Newbridge Networks multiservice switching platforms from a single console.

OID Breakdown

Upper-level ancestors (8 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
1.3.6.1.4.1.123newbridgeNNCGNI0001-SMI
1.3.6.1.4.1.123.3nncExtensionsNNCGNI0001-SMI
Numeric OIDNameModule
1.3.6.1.4.1.123.3.43nncExtMultiBridgeMULTIBRIDGE-MIB
1.3.6.1.4.1.123.3.43.1mBrdgBaseMULTIBRIDGE-MIB
1.3.6.1.4.1.123.3.43.1.2mBrdgBasePortTableMULTIBRIDGE-MIB
1.3.6.1.4.1.123.3.43.1.2.1mBrdgBasePortEntryMULTIBRIDGE-MIB
1.3.6.1.4.1.123.3.43.1.2.1.5mBrdgBasePortMtuExceededDiscardsMULTIBRIDGE-MIB