BRIDGE-MIB :: dot1dTpAgingTime

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsBRIDGE-MIBdot1dTpAgingTime

dot1dTpAgingTime

Module: BRIDGE-MIB

OID (symbolic): BRIDGE-MIB::dot1dTpAgingTime

OID (numeric): 1.3.6.1.2.1.17.4.2

Node type: OBJECT-TYPE

Type: Integer32

Access: read-write

Description: Aging time.

What is dot1dTpAgingTime?

Shows or sets the number of seconds after which an inactive dynamically-learned MAC address entry is removed from the forwarding database. The IEEE 802.1D standard recommends a default of 300 seconds to balance memory use against the accuracy of the forwarding table.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.2.1.17.4.2
snmpwalk -v2c -c public <target> BRIDGE-MIB::dot1dTpAgingTime

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.2.1.17.4.2.1
snmpget -v2c -c public <target> BRIDGE-MIB::dot1dTpAgingTime.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.2.1.17.4.2.1 i <value>

Start monitoring IEEE 802.1D-compliant Ethernet switches/bridges with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the BRIDGE-MIB::dot1dTpAgingTime OID value, configure state conditions and alerts, and monitor any IEEE 802.1D-compliant Ethernet switches/bridges from a single console.

OID Breakdown

Upper-level ancestors (6 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
Numeric OIDNameModule
1.3.6.1.2.1.17dot1dBridgeBRIDGE-MIB
1.3.6.1.2.1.17.4dot1dTpBRIDGE-MIB
1.3.6.1.2.1.17.4.2dot1dTpAgingTimeBRIDGE-MIB