| OID | 1.3.6.1.2.1.10.97.1.1.11.1.33 | 
| Module | VDSL-LINE-MIB (ietf) | 
| Nom | vdslLineConfBandOptUsage | 
| Acces | readwrite | 
| Status | current | 
| Description | Defines the VDSL link use of the optional frequency range [25kHz - 138kHz] (Opt). unused(1) indicates Opt is unused upstream(2) indicates Opt usage is for upstream downstream(3) indicates Opt usage is for downstream. | 
| Syntaxe | Enumeration (1-unused, 2-upstream, 3-downstream) |