TPLINK-SPANNING-TREE-MIB :: tpStpRootBridgeDefendEnable

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsTPLINK-SPANNING-TREE-MIBtpStpRootBridgeDefendEnable

tpStpRootBridgeDefendEnable

Module: TPLINK-SPANNING-TREE-MIB

OID (symbolic): TPLINK-SPANNING-TREE-MIB::tpStpRootBridgeDefendEnable

OID (numeric): 1.3.6.1.4.1.11863.6.21.1.4.1.1.3

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-write

Description: Root defend is to prevent wrong network topology change caused by the role change of the current legal root bridge. 0. Disable 1. Enable

What is tpStpRootBridgeDefendEnable?

Enables or disables root guard on this port, which blocks an unexpected topology change that would happen if a device on this port tried to take over as the network's root bridge.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.11863.6.21.1.4.1.1.3
snmpwalk -v2c -c public <target> TPLINK-SPANNING-TREE-MIB::tpStpRootBridgeDefendEnable

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.11863.6.21.1.4.1.1.3.1
snmpget -v2c -c public <target> TPLINK-SPANNING-TREE-MIB::tpStpRootBridgeDefendEnable.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.11863.6.21.1.4.1.1.3.1 i <value>

Start monitoring TP-Link managed switch (STP/RSTP/MSTP port role/state status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the TPLINK-SPANNING-TREE-MIB::tpStpRootBridgeDefendEnable OID value, configure state conditions and alerts, and monitor any TP-Link managed switch (STP/RSTP/MSTP port role/state status) from a single console.

OID Breakdown

Upper-level ancestors (8 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.11863tplinkTPLINK-MIB
1.3.6.1.4.1.11863.6tplinkMgmtTPLINK-MIB
Numeric OIDNameModule
1.3.6.1.4.1.11863.6.21tplinkSpanningTreeMIBTPLINK-SPANNING-TREE-MIB
1.3.6.1.4.1.11863.6.21.1tplinkSpanningTreeMIBObjectsTPLINK-SPANNING-TREE-MIB
1.3.6.1.4.1.11863.6.21.1.4tpStpSecurityCfgTPLINK-SPANNING-TREE-MIB
1.3.6.1.4.1.11863.6.21.1.4.1tpStpPortDefendTableTPLINK-SPANNING-TREE-MIB
1.3.6.1.4.1.11863.6.21.1.4.1.1tpStpPortDefendEntryTPLINK-SPANNING-TREE-MIB
1.3.6.1.4.1.11863.6.21.1.4.1.1.3tpStpRootBridgeDefendEnableTPLINK-SPANNING-TREE-MIB