All MIBs › DES3528-L2MGMT-MIB › swL2DevAlarmTopologyChange
swL2DevAlarmTopologyChange
Module: DES3528-L2MGMT-MIB
OID (symbolic): DES3528-L2MGMT-MIB::swL2DevAlarmTopologyChange
OID (numeric): 1.3.6.1.4.1.171.11.105.1.2.1.3.2
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?
Controls whether the switch sends a topologyChange trap whenever one of its ports transitions between STP states (Learning to Forwarding, or Forwarding to Blocking). Enabling it gives admins visibility into network instability caused by repeated STP recalculations, such as a flapping link.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.171.11.105.1.2.1.3.2 snmpwalk -v2c -c public <target> DES3528-L2MGMT-MIB::swL2DevAlarmTopologyChange
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.171.11.105.1.2.1.3.2.1 snmpget -v2c -c public <target> DES3528-L2MGMT-MIB::swL2DevAlarmTopologyChange.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.171.11.105.1.2.1.3.2.1 i <value>
Start monitoring D-Link DES-3528 managed switch with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the DES3528-L2MGMT-MIB::swL2DevAlarmTopologyChange OID value, configure state conditions and alerts, and monitor any D-Link DES-3528 managed switch from a single console.
OID Breakdown
Upper-level ancestors (10 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 |
| 1.3.6.1.4.1.171.11.105 | dlink_Des3528Series | SW3528PRIMGMT-MIB |
| 1.3.6.1.4.1.171.11.105.1 | des3528 | SW3528PRIMGMT-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.171.11.105.1.2 | swL2MgmtMIB | DES3528-L2MGMT-MIB |
| 1.3.6.1.4.1.171.11.105.1.2.1 | swL2DevMgmt | DES3528-L2MGMT-MIB |
| 1.3.6.1.4.1.171.11.105.1.2.1.3 | swL2DevAlarm | DES3528-L2MGMT-MIB |
| 1.3.6.1.4.1.171.11.105.1.2.1.3.2 | swL2DevAlarmTopologyChange | DES3528-L2MGMT-MIB |