A3COM-SWITCHING-SYSTEMS-MIB :: a3ComSysBridgePortTransmitBlockedDiscards

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsA3COM-SWITCHING-SYSTEMS-MIBa3ComSysBridgePortTransmitBlockedDiscards

a3ComSysBridgePortTransmitBlockedDiscards

Module: A3COM-SWITCHING-SYSTEMS-MIB

OID (symbolic): A3COM-SWITCHING-SYSTEMS-MIB::a3ComSysBridgePortTransmitBlockedDiscards

OID (numeric): 1.3.6.1.4.1.43.29.4.10.3.1.15

Node type: OBJECT-TYPE

Type: Counter

Access: read-only

Description: The number of frames discarded by the bridge port identified by this entry because the transmitting bridge port was not in the 'forwarding' state.

What is a3ComSysBridgePortTransmitBlockedDiscards?

Frames dropped at transmit because the egress port was not forwarding (Counter). This indicates STP blocking or port shutdown during transmission attempts. A value of 1500 means 1500 frames were blocked from leaving.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.43.29.4.10.3.1.15
snmpwalk -v2c -c public <target> A3COM-SWITCHING-SYSTEMS-MIB::a3ComSysBridgePortTransmitBlockedDiscards

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.43.29.4.10.3.1.15.1
snmpget -v2c -c public <target> A3COM-SWITCHING-SYSTEMS-MIB::a3ComSysBridgePortTransmitBlockedDiscards.1

Start monitoring 3Com SuperStack switches (legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the A3COM-SWITCHING-SYSTEMS-MIB::a3ComSysBridgePortTransmitBlockedDiscards OID value, configure state conditions and alerts, and monitor any 3Com SuperStack switches (legacy) from a single console.

OID Breakdown

Upper-level ancestors (12 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
1.3.6.1.4.1.43a3ComA3COM-BRIDGE-R3-MIB
1.3.6.1.4.1.43.29switchingSystemsMibsA3COM-SWITCHING-SYSTEMS-BRIDGE-MIB
1.3.6.1.4.1.43.29.4a3ComSwitchingSystemsMibA3COM-SWITCHING-SYSTEMS-BRIDGE-MIB
1.3.6.1.4.1.43.29.4.10a3ComSysBridgeA3COM-SWITCHING-SYSTEMS-BRIDGE-MIB
1.3.6.1.4.1.43.29.4.10.3a3ComSysBridgePortTableA3COM-SWITCHING-SYSTEMS-BRIDGE-MIB
1.3.6.1.4.1.43.29.4.10.3.1a3ComSysBridgePortEntryA3COM-SWITCHING-SYSTEMS-BRIDGE-MIB
Numeric OIDNameModule
1.3.6.1.4.1.43.29.4.10.3.1.15a3ComSysBridgePortTransmitBlockedDiscardsA3COM-SWITCHING-SYSTEMS-MIB