| OID | Object | Syntax | Max Access | Description | Implemented Specifications | 
|---|---|---|---|---|---|
| 1.3.6.1.4.1.2011.5.25.42.4.1.5 | hwMstpMasterBridgeID | OCTET STRING{(8,8)} | read-only | The Bridge Identifier of the current Master Bridge. It is the root Bridge Identifier of the instance 0 in the region. | This object is implemented as defined in the corresponding MIB files. |