SNMP topology_change monitoring

MIBs list

SNMP topology_change monitoring

The objects described here can be monitored with the IPHost Network Monitor. You can start SNMP monitoring using free 30-day trial version of IPHost right now.

OID list for topology change

dot1d Stp Time Since Topology Change
dot1dStpTimeSinceTopologyChange 1.3.6.1.2.1.17.2.3 (defined in BRIDGE-MIB)
The time (in hundredths of a second) since the last time a topology change was detected by the bridge entity.
atm LAN Emulation Client Topology Change
atmLecTopologyChange 1.3.6.1.4.1.800.2.4.8.2.1.11 (defined in XYLAN-ATM-MIB)
C19 Topology Change. Boolean indication that the LE Client is using the Forward Delay Time C18, instead of the Aging Time C17, to age non-local entries in its LE_ARP cache C16. For a client which is not connected to the LES, this object is defined to have the value 'false'.
v Stp Time Since Topology Change
vStpTimeSinceTopologyChange 1.3.6.1.4.1.800.2.2.5.4 (defined in XYLAN-VLAN-MIB)
The time (in hundredths of a second) since the last time a topology change was detected by the VLAN bridge entity.
dot1d Stp Time Since Topology Change
dot1dStpTimeSinceTopologyChange 1.3.6.1.2.1.17.2.3 (defined in rfc1493)
The time (in hundredths of a second) since the last time a topology change was detected by the bridge entity.
BDG Device Time Topology Change
bdgdeviceTimeTopChg 1.3.6.1.4.1.173.7.9.1.1.26 (defined in ctron-bdg-mib)
The time in seconds that has elapsed since the bridge's Topology Change Flag last recorded the value of a topology change.
Cabletron Pvst Last Topology Change
ctPvstLastTopologyChange 1.3.6.1.4.1.52.4.1.2.3.2.2.4 (defined in ctron-bridge-mib)
This summary object contains the value of sysUpTime when any of the rows in ctPvstStpTable last incremented ctPvstStpTopChanges. Poll this object to determine if any of the STP instances had topology changes.
Cabletron Pvst Stp Time Since Topology Change
ctPvstStpTimeSinceTopologyChange 1.3.6.1.4.1.52.4.1.2.3.2.2.5.1.4 (defined in ctron-bridge-mib)
The time (in hundredths of a second) since the last time a topology change was detected by the bridge entity.
sfps RA Topology Agent Port State Change Count
sfpsRATopAgentPortStateChangeCount 1.3.6.1.4.1.52.4.2.4.2.2.3.12.3.2.2.1.9 (defined in ctron-sfps-topology-mib)
PortStateChangeCount of the port
xst Instance Configuration Time Since Topology Change
xstInstanceCfgTimeSinceTopologyChange 1.3.6.1.4.1.52.4.12.30.1.5.6.4.1.3 (defined in v2h124-24-mib)
change detected by the bridge entity in RST.
Enterasys Ietf Bridge Dot1d Stp Topology Change Trap Enable
etsysIetfBridgeDot1dStpTopChangeTrapEnable 1.3.6.1.4.1.5624.1.2.31.1.1.2 (defined in enterasys-ietf-bridge-mib-ext-mib)
The enabled/disabled status of the Spanning Tree topology change notification. When this object is set to enabled(1) topology change notifications SHOULD be generated by the agent. When this object is set to disabled(2) topology change notifications MUST NOT be generated by the agent. When this object is set to edgePortDisabled(3) topology change notifications MUST NOT be generated by the agent for ports that are operating as edge ports, as specified by dot1dStpPortOperEdgePort, and SHOULD be generated for all other applicable ports.
Enterasys Mstp Time Since Topology Change
etsysMstpTimeSinceTopologyChange 1.3.6.1.4.1.5624.1.2.28.1.2.4.1.2 (defined in enterasys-mstp-mib)
The elapsed time, in units of hundredths of a second, since the last time a topology change was detected by the corresponding Spanning Tree instance (specifically, the elapsed time since the tcWhile timer for any port was non-zero).
Enterasys Mstp Topology Change Count
etsysMstpTopologyChangeCount 1.3.6.1.4.1.5624.1.2.28.1.2.4.1.3 (defined in enterasys-mstp-mib)
The total number of topology changes detected by the corresponding Spanning Tree instance since the management entity was last reset or initialized (specifically, the count of times that the tcWhile timer for any port has been non-zero).
Enterasys Mstp Topology Change In Progress
etsysMstpTopologyChangeInProgress 1.3.6.1.4.1.5624.1.2.28.1.2.4.1.4 (defined in enterasys-mstp-mib)
True(1) if the tcWhile timer is non-zero for any port for the corresponding Spanning Tree instance, false(2) otherwise.
Enterasys Spanning Tree Diagnostic Common Spanning Tree Topology Change Notification Bpdu Rx
etsysStpDiagCommonStpTcnBpduRx 1.3.6.1.4.1.5624.1.2.29.1.2.5 (defined in enterasys-spanning-tree-diagnostic-mib)
The total number of 802.1D Topology Change Notification BPDUs received.
Enterasys Spanning Tree Diagnostic Cist Bridge Port Spanning Tree Topology Change Notification Bpdu Rx
etsysStpDiagCistBridgePortStpTcnBpduRx 1.3.6.1.4.1.5624.1.2.29.1.3.2.1.6 (defined in enterasys-spanning-tree-diagnostic-mib)
The total number of 802.1D Topology Change Notification BPDUs received on this port.
ibm SE Time Since Topology Change
ibmSETimeSinceTopologyChange 1.3.6.1.4.1.2.5.8.4.1.4.1.3 (defined in ibm-ibmlanex)
The time (in hundredths of a second) since the last time a topology change was detected by the bridge entity.
ibm Vlan Topology Change
ibmVlanTopologyChange 1.3.6.1.4.1.2.5.8.4.3.1.1.2 (defined in ibm-ibmlanex)
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.
LAN Emulation Client Topology Change
lecTopologyChange 1.3.6.1.4.1.353.5.3.1.1.2.1.9 (defined in ibm-lec)
C19 Topology Change. Boolean indication that the LE Client is using the Forward Delay Time C18, instead of the Aging Time C17, to age non-local entries in its LE_ARP cache C16. For a client which is not connected to the LES, this object is defined to have the value 'false'.
Juniper MI Mst Cist Port Topology Change Sem State
jnxMIMstCistPortTopologyChangeSemState 1.3.6.1.4.1.2636.3.46.1.1.6.1.39 (defined in JUNIPER-MIMSTP-MIB)
Current state of the Topology Change State Machine for this port in this spanning tree context.
Juniper MI Mst Msti Port Topology Change Sem State
jnxMIMstMstiPortTopologyChangeSemState 1.3.6.1.4.1.2636.3.46.1.1.7.1.19 (defined in JUNIPER-MIMSTP-MIB)
Current state of the Topology Change State Machine for this port in this spanning tree context.
Switch L2 Device Alarm Topology Change
swL2DevAlarmTopologyChange 1.3.6.1.4.1.171.11.70.5.2.1.3.2 (defined in DES3528-L2MGMT-MIB)
This object determines whether or not to send a trap message when the switch topology changes. If the object is enabled(3), the topologyChange trap is sent by the device when any of its configured ports transitions from the Learning state to the Forwarding state, or from the Forwarding state to the Blocking state. For the same port transition, the device does not send the trap if this object value is disabled or other.
Switch L2 Device Alarm Topology Change
swL2DevAlarmTopologyChange 1.3.6.1.4.1.171.11.70.5.2.1.3.2 (defined in DES3552-L2MGMT-MIB)
This object determines whether or not to send a trap message when the switch topology changes. If the object is enabled(3), the topologyChange trap is sent by the device when any of its configured ports transitions from the Learning state to the Forwarding state, or from the Forwarding state to the Blocking state. For the same port transition, the device does not send the trap if this object value is disabled or other.
Switch L2 Device Alarm Topology Change
swL2DevAlarmTopologyChange 1.3.6.1.4.1.171.11.70.5.2.1.3.2 (defined in DES6500-SWL2MGMT-MIB)
This object determine to send a trap or not when the switch topology was changed. If the object is enabled(3), the topologyChange trap is sent by the device when any of its configured ports transitions from the Learning state to the Forwarding state, or from the Forwarding state to the Blocking state. For the same port tranition, the device doesn't send the trap if this object value is disabled or other.
Switch L2 Device Alarm Topology Change
swL2DevAlarmTopologyChange 1.3.6.1.4.1.171.11.70.5.2.1.3.2 (defined in DGS3627-L2MGMT-MIB)
This object determine to send a trap or not when the switch topology was changed. If the object is enabled(3), the topologyChange trap is sent by the device when any of its configured ports transitions from the Learning state to the Forwarding state, or from the Forwarding state to the Blocking state. For the same port tranition, the device doesn't send the trap if this object value is disabled or other.
Switch L2 Device Alarm Topology Change
swL2DevAlarmTopologyChange 1.3.6.1.4.1.171.11.70.5.2.1.3.2 (defined in DGS3650-L2MGMT-MIB)
This object determine to send a trap or not when the switch topology was changed. If the object is enabled(3), the topologyChange trap is sent by the device when any of its configured ports transitions from the Learning state to the Forwarding state, or from the Forwarding state to the Blocking state. For the same port tranition, the device doesn't send the trap if this object value is disabled or other.
Switch L2 Device Alarm Topology Change
swL2DevAlarmTopologyChange 1.3.6.1.4.1.171.11.70.5.2.1.3.2 (defined in DGS3200-L2MGMT-MIB)
This object determines whether or not to send a trap message when the switch topology changes. If the object is enabled(3), the topologyChange trap is sent by the device when any of its configured ports transitions from the Learning state to the Forwarding state, or from the Forwarding state to the Blocking state. For the same port transition, the device does not send the trap if this object value is disabled or other.
Switch L2 Device Alarm Topology Change
swL2DevAlarmTopologyChange 1.3.6.1.4.1.171.11.70.5.2.1.3.2 (defined in DHS3224-MIB)
This object determine to send a trap or not when the switch topology was changed. If the object is enabled(3), the topologyChange trap is sent by the device when any of its configured ports transitions from the Learning state to the Forwarding state, or from the Forwarding state to the Blocking state. For the same port tranition, the device doesn't send the trap if this object value is disabled or other.
Switch MSTP Inst Last Topology Change
swMSTPInstLastTopologyChange 1.3.6.1.4.1.171.12.15.2.3.1.21 (defined in MSTP-MIB)
The time (in hundredths of a second) since the last time a topology change was detected by the bridge entity.
Lan Emulation Client Topology Change
lecTopologyChange 1.3.6.1.4.1.353.5.3.1.1.2.1.9 (defined in LAN-EMULATION-CLIENT-MIB)
C19 Topology Change. Boolean indication that the LE Client is using the Forward Delay Time C18, instead of the Aging Time C17, to age non-local entries in its LE_ARP cache C16. For a client which is not connected to the LES, this object is defined to have the value 'false'.
agent Stp Cst Port Topology Change Ack
agentStpCstPortTopologyChangeAck 1.3.6.1.4.1.4526.10.1.2.15.9.1.3 (defined in NETGEAR-SWITCHING-MIB)
The MSTP topology change acknowledge for a specific port in the CIST.
agent Stp Mst Topology Change Count
agentStpMstTopologyChangeCount 1.3.6.1.4.1.4526.10.1.2.15.10.1.8 (defined in NETGEAR-SWITCHING-MIB)
The MSTP count of topology changes in a specific instance.
v Spanning Tree Port Time Since Topology Change
vStpTimeSinceTopologyChange 1.3.6.1.4.1.6486.800.1.2.1.12.1.1.1.1.1.6 (defined in ALCATEL-IND1-VLAN-STP-MIB)
The time (in hundredths of a second) since the last time a topology change was detected by this spanning tree instance.

MIBs list