All MIBs › IEEE8021-SPANNING-TREE-MIB › ieee8021SpanningTreePortDesignatedRoot
ieee8021SpanningTreePortDesignatedRoot
Module: IEEE8021-SPANNING-TREE-MIB
OID (symbolic): IEEE8021-SPANNING-TREE-MIB::ieee8021SpanningTreePortDesignatedRoot
OID (numeric): 1.3.111.2.802.1.1.3.1.2.1.7
Node type: OBJECT-TYPE
Type: BridgeId
Access: read-only
Description: The unique Bridge Identifier of the Bridge recorded as the Root in the Configuration BPDUs transmitted by the Designated Bridge for the segment to which the port is attached.
What is ieee8021SpanningTreePortDesignatedRoot?
The bridge ID recorded as root in the Configuration BPDUs seen on this port's segment — used to verify this port agrees with the rest of the network about which bridge is root.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.111.2.802.1.1.3.1.2.1.7 snmpwalk -v2c -c public <target> IEEE8021-SPANNING-TREE-MIB::ieee8021SpanningTreePortDesignatedRoot
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.111.2.802.1.1.3.1.2.1.7.1 snmpget -v2c -c public <target> IEEE8021-SPANNING-TREE-MIB::ieee8021SpanningTreePortDesignatedRoot.1
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::ieee8021SpanningTreePortDesignatedRoot 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 |
| 1.3.111.2.802.1.1.3.1 | ieee8021SpanningTreeObjects | IEEE8021-SPANNING-TREE-MIB |
| 1.3.111.2.802.1.1.3.1.2 | ieee8021SpanningTreePortTable | IEEE8021-SPANNING-TREE-MIB |
| 1.3.111.2.802.1.1.3.1.2.1 | ieee8021SpanningTreePortEntry | IEEE8021-SPANNING-TREE-MIB |
| 1.3.111.2.802.1.1.3.1.2.1.7 | ieee8021SpanningTreePortDesignatedRoot | IEEE8021-SPANNING-TREE-MIB |