BRIDGE-MIB :: dot1dStpDesignatedRoot

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsBRIDGE-MIBdot1dStpDesignatedRoot

dot1dStpDesignatedRoot

Module: BRIDGE-MIB

OID (symbolic): BRIDGE-MIB::dot1dStpDesignatedRoot

OID (numeric): 1.3.6.1.2.1.17.2.5

Node type: OBJECT-TYPE

Type: BridgeId

Access: read-only

Description: Designated root.

What is dot1dStpDesignatedRoot?

Shows the Bridge ID of the root bridge as determined by the Spanning Tree Protocol from this bridge's perspective. This value is included in all Configuration Bridge PDUs sent by this node and identifies the current STP root.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.2.1.17.2.5
snmpwalk -v2c -c public <target> BRIDGE-MIB::dot1dStpDesignatedRoot

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.2.1.17.2.5.1
snmpget -v2c -c public <target> BRIDGE-MIB::dot1dStpDesignatedRoot.1

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OID Breakdown

Upper-level ancestors (6 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.2mgmtAXON-MIB
1.3.6.1.2.1mib_2AXON-MIB
Numeric OIDNameModule
1.3.6.1.2.1.17dot1dBridgeBRIDGE-MIB
1.3.6.1.2.1.17.2dot1dStpBRIDGE-MIB
1.3.6.1.2.1.17.2.5dot1dStpDesignatedRootBRIDGE-MIB