All MIBs › IEEE8021-SPANNING-TREE-MIB › ieee8021SpanningTreeNewRoot
ieee8021SpanningTreeNewRoot
Module: IEEE8021-SPANNING-TREE-MIB
OID (symbolic): IEEE8021-SPANNING-TREE-MIB::ieee8021SpanningTreeNewRoot
OID (numeric): 1.3.111.2.802.1.1.3.0.1
Node type: NOTIFICATION-TYPE
Description: The ieee8021SpanningTreeNewRoot notification indicates that the sending agent has become the new root of the Spanning Tree; the notification is sent by a Bridge soon after its election as the new root, e.g., upon expiration of the Topology Change Timer, immediately subsequent to its election.
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::ieee8021SpanningTreeNewRoot snmptrap -v2c -c public <manager> '' 1.3.111.2.802.1.1.3.0.1
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]:55881->[192.168.30.10]:162]: DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (420873289) 48 days, 17:05:32.89 SNMPv2-MIB::snmpTrapOID.0 = OID: IEEE8021-SPANNING-TREE-MIB::ieee8021SpanningTreeNewRoot
Start monitoring Vendor-neutral IEEE 802.1D/Q standard (Ethernet bridge or switch running STP) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the IEEE8021-SPANNING-TREE-MIB::ieee8021SpanningTreeNewRoot OID value, configure state conditions and alerts, and monitor any Vendor-neutral IEEE 802.1D/Q standard (Ethernet bridge or switch running STP) from a single console.
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 |
| 1.3.111.2.802.1.1.3.0.1 | ieee8021SpanningTreeNewRoot | IEEE8021-SPANNING-TREE-MIB |