CISCO-STP-EXTENSIONS-MIB :: stpxSMSTInstanceCISTRegionalRoot

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCISCO-STP-EXTENSIONS-MIBstpxSMSTInstanceCISTRegionalRoot

stpxSMSTInstanceCISTRegionalRoot

Module: CISCO-STP-EXTENSIONS-MIB

OID (symbolic): CISCO-STP-EXTENSIONS-MIB::stpxSMSTInstanceCISTRegionalRoot

OID (numeric): 1.3.6.1.4.1.9.9.82.1.14.5.1.5

Node type: OBJECT-TYPE

Type: OCTET STRING

Access: read-only

Description: Indicates the Bridge Identifier (refer to BridgeId defined in BRIDGE-MIB) of CIST (Common and Internal Spanning Tree) Regional Root for the MST region.

This object is only instantiated when the object value of stpxSpanningTreeType is mst(4) and stpxSMSTInstanceIndex is 0.

What is stpxSMSTInstanceCISTRegionalRoot?

A read-only field reporting the Bridge Identifier of the Common and Internal Spanning Tree (CIST) Regional Root bridge for the MST region.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.9.82.1.14.5.1.5
snmpwalk -v2c -c public <target> CISCO-STP-EXTENSIONS-MIB::stpxSMSTInstanceCISTRegionalRoot

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.9.9.82.1.14.5.1.5.1
snmpget -v2c -c public <target> CISCO-STP-EXTENSIONS-MIB::stpxSMSTInstanceCISTRegionalRoot.1

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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
1.3.6.1.4.1.9ciscoCAT2600-MIB
1.3.6.1.4.1.9.9ciscoMgmtCISCO-SMI
Numeric OIDNameModule
1.3.6.1.4.1.9.9.82ciscoStpExtensionsMIBCISCO-STP-EXTENSIONS-MIB
1.3.6.1.4.1.9.9.82.1stpxObjectsCISCO-STP-EXTENSIONS-MIB
1.3.6.1.4.1.9.9.82.1.14stpxSMSTObjectsCISCO-STP-EXTENSIONS-MIB
1.3.6.1.4.1.9.9.82.1.14.5stpxSMSTInstanceTableCISCO-STP-EXTENSIONS-MIB
1.3.6.1.4.1.9.9.82.1.14.5.1stpxSMSTInstanceEntryCISCO-STP-EXTENSIONS-MIB
1.3.6.1.4.1.9.9.82.1.14.5.1.5stpxSMSTInstanceCISTRegionalRootCISCO-STP-EXTENSIONS-MIB