All MIBs › IEEE8021-Q-BRIDGE-MIB › ieee8021QBridgePortIngressFiltering
ieee8021QBridgePortIngressFiltering
Module: IEEE8021-Q-BRIDGE-MIB
OID (symbolic): IEEE8021-Q-BRIDGE-MIB::ieee8021QBridgePortIngressFiltering
OID (numeric): 1.3.111.2.802.1.1.4.1.4.5.1.3
Node type: OBJECT-TYPE
Type: TruthValue
Access: read-write
Description: When this is true(1), the device will discard incoming frames for VLANs that do not include this Port in its Member set. When false(2), the port will accept all incoming frames.
This control does not affect VLAN-independent BPDU frames, such as MVRP and STP. It does affect VLAN- dependent BPDU frames, such as MMRP.
The value of this object MUST be retained across reinitializations of the management system.
What is ieee8021QBridgePortIngressFiltering?
When enabled, this setting causes the bridge port to discard incoming frames whose VLAN membership does not include this port, enforcing strict VLAN isolation. When disabled, the port accepts all frames regardless of VLAN membership rules. Operators configure this to control whether untagged or unknown-VLAN frames are allowed, affecting broadcast and flooding behavior on the bridge.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.111.2.802.1.1.4.1.4.5.1.3 snmpwalk -v2c -c public <target> IEEE8021-Q-BRIDGE-MIB::ieee8021QBridgePortIngressFiltering
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.111.2.802.1.1.4.1.4.5.1.3.1 snmpget -v2c -c public <target> IEEE8021-Q-BRIDGE-MIB::ieee8021QBridgePortIngressFiltering.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.111.2.802.1.1.4.1.4.5.1.3.1 s <value>
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OID Breakdown
Upper-level ancestors (3 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.111.2.802.1.1 | ieee802dot1mibs | IEEE8021-TC-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.111.2.802.1.1.4 | ieee8021QBridgeMib | IEEE8021-Q-BRIDGE-MIB |
| 1.3.111.2.802.1.1.4.1 | ieee8021QBridgeMibObjects | IEEE8021-Q-BRIDGE-MIB |
| 1.3.111.2.802.1.1.4.1.4 | ieee8021QBridgeVlan | IEEE8021-Q-BRIDGE-MIB |
| 1.3.111.2.802.1.1.4.1.4.5 | ieee8021QBridgePortVlanTable | IEEE8021-Q-BRIDGE-MIB |
| 1.3.111.2.802.1.1.4.1.4.5.1 | ieee8021QBridgePortVlanEntry | IEEE8021-Q-BRIDGE-MIB |
| 1.3.111.2.802.1.1.4.1.4.5.1.3 | ieee8021QBridgePortIngressFiltering | IEEE8021-Q-BRIDGE-MIB |