| OID | 1.3.6.1.2.1.26.4.21 |
| Module | MAU-MIB (CISCO) |
| Nom | dot3MauType1000BaseXHD |
| Status | current |
| Description | PCS/PMA, unknown PMD, half duplex mode |
| Module | IANA-MAU-MIB (CISCO) |
| Nom | dot3MauType1000BaseXHD |
| Status | current |
| Description | PCS/PMA, unknown PMD, half duplex mode |
| Module | MAU-MIB (DELL) |
| Nom | dot3MauType1000BaseXHD |
| Status | current |
| Description | PCS/PMA, unknown PMD, half duplex mode |
| Module | IANA-MAU-MIB (iana) |
| Nom | dot3MauType1000BaseXHD |
| Status | current |
| Description | PCS/PMA, unknown PMD, half duplex mode |
| Module | MAU-MIB (Alcatel) |
| Nom | dot3MauType1000BaseXHD |
| Status | current |
| Description | PCS/PMA (per 802.3 section 36), unknown PMD,
half duplex mode |