Q-BRIDGE-MIB :: dot1qConstraintSetDefault

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsQ-BRIDGE-MIBdot1qConstraintSetDefault

dot1qConstraintSetDefault

Module: Q-BRIDGE-MIB

OID (symbolic): Q-BRIDGE-MIB::dot1qConstraintSetDefault

OID (numeric): 1.3.6.1.2.1.17.7.1.4.9

Node type: OBJECT-TYPE

Type: Integer32

Access: read-write

Description: The identity of the constraint set to which a VLAN belongs, if there is not an explicit entry for that VLAN in dot1qLearningConstraintsTable.

The value of this object MUST be retained across reinitializations of the management system.

What is dot1qConstraintSetDefault?

This number (0-65535) specifies which MAC learning constraint group VLANs belong to by default. Network engineers set this to group similar VLANs for efficient MAC address table management. For example, assigning guest VLANs to constraint set 2 applies consistent learning rules across them.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.2.1.17.7.1.4.9
snmpwalk -v2c -c public <target> Q-BRIDGE-MIB::dot1qConstraintSetDefault

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.2.1.17.7.1.4.9.1
snmpget -v2c -c public <target> Q-BRIDGE-MIB::dot1qConstraintSetDefault.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.2.1.17.7.1.4.9.1 i <value>

Start monitoring IEEE 802.1Q Ethernet switches and bridges with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the Q-BRIDGE-MIB::dot1qConstraintSetDefault OID value, configure state conditions and alerts, and monitor any IEEE 802.1Q Ethernet switches and bridges from a single console.

OID Breakdown

Upper-level ancestors (7 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.2mgmtAXON-MIB
1.3.6.1.2.1mib_2AXON-MIB
1.3.6.1.2.1.17dot1dBridgeBRIDGE-MIB
Numeric OIDNameModule
1.3.6.1.2.1.17.7qBridgeMIBQ-BRIDGE-MIB
1.3.6.1.2.1.17.7.1qBridgeMIBObjectsQ-BRIDGE-MIB
1.3.6.1.2.1.17.7.1.4dot1qVlanQ-BRIDGE-MIB
1.3.6.1.2.1.17.7.1.4.9dot1qConstraintSetDefaultQ-BRIDGE-MIB