---
oid: "1.3.6.1.4.1.2.6.148.3.1.3.2.1.1.2"
short-description: "swLbStpProtocolSpecification OBJECT-TYPE"
last-modified: "2026-09-11"
parent-oid: "1.3.6.1.4.1.2.6.148.3.1.3.2.1.1"
---

## OID: `1.3.6.1.4.1.2.6.148.3.1.3.2.1.1.2`

```asn1
{iso(1) identified-organization(3) dod(6) internet(1) private(4) enterprise(1) 2 ibmProd(6) ibm8275(148) enetSwitchMgmt(3) sw(1) swLBridgeCfg(3) swLbStp(2) swLbStpTable(1) swLbStpTblEntry(1) swLbStpProtocolSpecification(2)}
```

### Description

```asn1
swLbStpProtocolSpecification OBJECT-TYPE
SYNTAX INTEGER {unknown(1), decLb100(2), ieee8021d(3)}
ACCESS read-only
STATUS mandatory
DESCRIPTION
"An indication of what version of the Spanning
Tree Protocol is being run. The value
'decLb100(2)' indicates the DEC LANbridge 100
Spanning Tree protocol. IEEE 802.1d
implementations will return 'ieee8021d(3)'. If
future versions of the IEEE Spanning Tree Protocol
are released that are incompatible with the
current version a new value will be defined."
```

**Classification:** MIB object for network management

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