IBM-LAN-EMULATION-EXTENSION-MIB :: ibmVlanTopologyChange

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › IBM-LAN-EMULATION-EXTENSION-MIB › ibmVlanTopologyChange

ibmVlanTopologyChange

Module: IBM-LAN-EMULATION-EXTENSION-MIB

OID (symbolic): IBM-LAN-EMULATION-EXTENSION-MIB::ibmVlanTopologyChange

OID (numeric): 1.3.6.1.4.1.2.5.8.4.3.1.1.2

Node type: OBJECT-TYPE

Type: TimeStamp

Access: read-only

Description: This is the time stamp at which time the last VLAN Topology Change occurred. This object can be used to monitor the change status of the VLANs controlled by this agent.

A change is defined whenever a VLAN has been added, deleted or changes configuration.

A change is also defined when a port is discovered or is aged out.

What is ibmVlanTopologyChange?

The sysUpTime-style timestamp of the last VLAN topology change on this agent, where a change means a VLAN was added, deleted, reconfigured, or a port was discovered or aged out; useful for detecting VLAN membership churn without polling every VLAN table.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.2.5.8.4.3.1.1.2
snmpwalk -v2c -c public <target> IBM-LAN-EMULATION-EXTENSION-MIB::ibmVlanTopologyChange

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.2.5.8.4.3.1.1.2.1
snmpget -v2c -c public <target> IBM-LAN-EMULATION-EXTENSION-MIB::ibmVlanTopologyChange.1

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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
1.3.6.1.4.1.2ibmATM-ADAPTER-MIB
1.3.6.1.4.1.2.5ibmArchitectureIBM-FEATURE-ACTIVATION-MIB
Numeric OIDNameModule
1.3.6.1.4.1.2.5.8lanEmulationIBM-LAN-EMULATION-EXTENSION-MIB
1.3.6.1.4.1.2.5.8.4ibmLeClientXIBM-LAN-EMULATION-EXTENSION-MIB
1.3.6.1.4.1.2.5.8.4.3ibmVlanIBM-LAN-EMULATION-EXTENSION-MIB
1.3.6.1.4.1.2.5.8.4.3.1ibmVlanGGroupIBM-LAN-EMULATION-EXTENSION-MIB
1.3.6.1.4.1.2.5.8.4.3.1.1ibmVlanGOGroupIBM-LAN-EMULATION-EXTENSION-MIB
1.3.6.1.4.1.2.5.8.4.3.1.1.2ibmVlanTopologyChangeIBM-LAN-EMULATION-EXTENSION-MIB