Link Access Procedure (LAP) protocols are data link layer protocols for framing and transmitting data across point-to-point links. LAP was originally derived from HDLC (High-Level Data Link Control), but was later updated and renamed LAPB (LAP Balanced).
LAPB is the data link protocol for X.25. Other related LAP protocols are:
- MLP (Multilink Procedure)
- LAPD (Link Access Prodecure D-channel)1
- LAPM (Link Access Procedure for Modems)
- LAPF (Link Access Procedure for Frame Relay)2
References
References
- "Other Link Control Protocol, LAPB, LAPD, LLC/MAC". Ebrary. Retrieved 2025-12-16.
- "Other Link Control Protocol, LAPB, LAPD, LLC/MAC". Ebrary. Retrieved 2025-12-16.