All MIBs › DGS-3700-12-L2MGMT-MIB › swL2DevAlarmTopologyChange
swL2DevAlarmTopologyChange
Module: DGS-3700-12-L2MGMT-MIB
OID (symbolic): DGS-3700-12-L2MGMT-MIB::swL2DevAlarmTopologyChange
OID (numeric): 1.3.6.1.4.1.171.11.102.1.1.2.1.3.2
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: 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.
What is swL2DevAlarmTopologyChange?
When set to enabled(3), the switch sends a topologyChange trap whenever one of its ports transitions between STP forwarding, learning, and blocking states, giving early warning of a Layer 2 topology shift; disabled or other suppresses the trap.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.171.11.102.1.1.2.1.3.2 snmpwalk -v2c -c public <target> DGS-3700-12-L2MGMT-MIB::swL2DevAlarmTopologyChange
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.171.11.102.1.1.2.1.3.2.1 snmpget -v2c -c public <target> DGS-3700-12-L2MGMT-MIB::swL2DevAlarmTopologyChange.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.171.11.102.1.1.2.1.3.2.1 i <value>
Start monitoring D-Link DGS-3700-12 switch with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the DGS-3700-12-L2MGMT-MIB::swL2DevAlarmTopologyChange OID value, configure state conditions and alerts, and monitor any D-Link DGS-3700-12 switch from a single console.
OID Breakdown
Upper-level ancestors (11 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.171 | d_link | DE1500-MIB |
| 1.3.6.1.4.1.171.11 | dlink_mgmt | DES2218-MIB |
| 1.3.6.1.4.1.171.11.102 | dlink_Dgs3700Series | SW3700PRIMGMT-MIB |
| 1.3.6.1.4.1.171.11.102.1 | dgs3700 | SW3700PRIMGMT-MIB |
| 1.3.6.1.4.1.171.11.102.1.1 | dgs3712 | SW3700PRIMGMT-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.171.11.102.1.1.2 | swL2MgmtMIB | DGS-3700-12-L2MGMT-MIB |
| 1.3.6.1.4.1.171.11.102.1.1.2.1 | swL2DevMgmt | DGS-3700-12-L2MGMT-MIB |
| 1.3.6.1.4.1.171.11.102.1.1.2.1.3 | swL2DevAlarm | DGS-3700-12-L2MGMT-MIB |
| 1.3.6.1.4.1.171.11.102.1.1.2.1.3.2 | swL2DevAlarmTopologyChange | DGS-3700-12-L2MGMT-MIB |