| OID | 1.3.111.2.802.1.1.26.1.8.1.4 |
| Module | IEEE8021-SPB-MIB (Alcatel) |
| Nom | ieee8021SpbmTopNodeEntrySPsourceID |
| Acces | readonly |
| Status | current |
| Description | The Shortest Path Source Identifier. It is the high order 3 bytes for Group Address DA from this bridge. Note that only the 20 bits not including the top 4 bits are the SPSourceID. |
| Syntaxe | IEEE8021SpbmSPsourceId (IEEE8021-SPB-MIB) |