All MIBs › EtherWAN-ewnSwitchM › ewnTrapsRringCPTopologyChange
ewnTrapsRringCPTopologyChange
Module: EtherWAN-ewnSwitchM
OID (symbolic): EtherWAN-ewnSwitchM::ewnTrapsRringCPTopologyChange
OID (numeric): 1.3.6.1.4.1.2736.1.1.1.15.12
Node type: NOTIFICATION-TYPE
Description: A topologyChange trap is sent by a bridge when any of coupling ports transitions from the Blocking state to the Forwarding state, and from the Forwarding state to the Blocking state.
Examples
Send this trap to an SNMP manager — replace <manager> with the IP or hostname of your monitoring server (SNMPv2c):
snmptrap -v2c -c public <manager> '' EtherWAN-ewnSwitchM::ewnTrapsRringCPTopologyChange snmptrap -v2c -c public <manager> '' 1.3.6.1.4.1.2736.1.1.1.15.12
Listen for incoming traps on the manager host (-f keeps it in the foreground, -Lo prints to stdout — useful for testing):
snmptrapd -f -Lo -c /dev/null authCommunity log public
Example snmptrapd log entry:
zoo11-linux.zoo [UDP: [192.168.30.111]:63889->[192.168.30.10]:162]: DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (366315409) 42 days, 9:32:34.09 SNMPv2-MIB::snmpTrapOID.0 = OID: EtherWAN-ewnSwitchM::ewnTrapsRringCPTopologyChange
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OID Breakdown
Upper-level ancestors (6 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 |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.2736 | etherwan | EtherWAN-ewnSwitchM |
| 1.3.6.1.4.1.2736.1 | lanSwitch | EtherWAN-ewnSwitchM |
| 1.3.6.1.4.1.2736.1.1 | ewnSwitchM | EtherWAN-ewnSwitchM |
| 1.3.6.1.4.1.2736.1.1.1 | ewnSystem | EtherWAN-ewnSwitchM |
| 1.3.6.1.4.1.2736.1.1.1.15 | ewnSystemTraps | EtherWAN-ewnSwitchM |
| 1.3.6.1.4.1.2736.1.1.1.15.12 | ewnTrapsRringCPTopologyChange | EtherWAN-ewnSwitchM |