Link access procedure

Last updated

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:


  1. "Other Link Control Protocol, LAPB, LAPD, LLC/MAC". Ebrary. Retrieved 2025-12-16.
  2. "Other Link Control Protocol, LAPB, LAPD, LLC/MAC". Ebrary. Retrieved 2025-12-16.