All MIBs › DES1228ME-L2MGMT-MIB › swL2DevAlarmTopologyChange
swL2DevAlarmTopologyChange
Module: DES1228ME-L2MGMT-MIB
OID (symbolic): DES1228ME-L2MGMT-MIB::swL2DevAlarmTopologyChange
OID (numeric): 1.3.6.1.4.1.171.11.116.1.2.1.3.2
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 Topology Change trap is sent by the device when any of its configured ports transition 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 in another state.
What is swL2DevAlarmTopologyChange?
Decides whether a Topology Change trap is sent when a port moves from Learning to Forwarding or from Forwarding to Blocking; set to enabled(3) to send, disabled(2) or other to stay silent. Useful for detecting links flapping or devices being added or removed from a spanning-tree network.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.171.11.116.1.2.1.3.2 snmpwalk -v2c -c public <target> DES1228ME-L2MGMT-MIB::swL2DevAlarmTopologyChange
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.171.11.116.1.2.1.3.2.1 snmpget -v2c -c public <target> DES1228ME-L2MGMT-MIB::swL2DevAlarmTopologyChange.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.171.11.116.1.2.1.3.2.1 i <value>
Start monitoring D-Link DES-1228ME managed switch with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the DES1228ME-L2MGMT-MIB::swL2DevAlarmTopologyChange OID value, configure state conditions and alerts, and monitor any D-Link DES-1228ME 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 |
| 1.3.6.1.4.1.171.11.116 | des1228MESeriesProd | SWPRIMGMT-DES1228ME-MIB |
| 1.3.6.1.4.1.171.11.116.1 | des1228ME | SWPRIMGMT-DES1228ME-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.171.11.116.1.2 | swL2MgmtMIB | DES1228ME-L2MGMT-MIB |
| 1.3.6.1.4.1.171.11.116.1.2.1 | swL2DevMgmt | DES1228ME-L2MGMT-MIB |
| 1.3.6.1.4.1.171.11.116.1.2.1.3 | swL2DevAlarm | DES1228ME-L2MGMT-MIB |
| 1.3.6.1.4.1.171.11.116.1.2.1.3.2 | swL2DevAlarmTopologyChange | DES1228ME-L2MGMT-MIB |