Table 137. Link Access Procedure, Channel D (LAPD) (lapd)
| Field | Field Name | Type | Description |
|---|
| lapd.address | Address Field | Unsigned 16-bit integer | Address |
| lapd.control | Control Field | Unsigned 16-bit integer | Control field |
| lapd.cr | C/R | Unsigned 16-bit integer | Command/Response bit |
| lapd.ea1 | EA1 | Unsigned 16-bit integer | First Address Extension bit |
| lapd.ea2 | EA2 | Unsigned 16-bit integer | Second Address Extension bit |
| lapd.sapi | SAPI | Unsigned 16-bit integer | Service Access Point Identifier |
| lapd.tei | TEI | Unsigned 16-bit integer | Terminal Endpoint Identifier |