All MIBs › IEEE8021-SPANNING-TREE-MIB › ieee8021SpanningTreeTopologyChange
ieee8021SpanningTreeTopologyChange
Module: IEEE8021-SPANNING-TREE-MIB
OID (symbolic): IEEE8021-SPANNING-TREE-MIB::ieee8021SpanningTreeTopologyChange
OID (numeric): 1.3.111.2.802.1.1.3.0.2
Node type: NOTIFICATION-TYPE
Description: A ieee8021SpanningTreeTopologyChange notification is sent by a Bridge when any of its configured ports transitions from the Learning state to the Forwarding state, or from the Forwarding state to the Blocking state. The notification is not sent if a ieee8021SpanningTreeNewRoot notification is sent for the same transition.
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> '' IEEE8021-SPANNING-TREE-MIB::ieee8021SpanningTreeTopologyChange snmptrap -v2c -c public <manager> '' 1.3.111.2.802.1.1.3.0.2
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]:52211->[192.168.30.10]:162]: DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (464027123) 53 days, 16:57:51.23 SNMPv2-MIB::snmpTrapOID.0 = OID: IEEE8021-SPANNING-TREE-MIB::ieee8021SpanningTreeTopologyChange
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OID Breakdown
Upper-level ancestors (3 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.111.2.802.1.1 | ieee802dot1mibs | IEEE8021-TC-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.111.2.802.1.1.3 | ieee8021SpanningTreeMib | IEEE8021-SPANNING-TREE-MIB |
| 1.3.111.2.802.1.1.3.0 | ieee8021SpanningTreeNotifications | IEEE8021-SPANNING-TREE-MIB |
| 1.3.111.2.802.1.1.3.0.2 | ieee8021SpanningTreeTopologyChange | IEEE8021-SPANNING-TREE-MIB |