Link Access Procedure for Modems
(重定向自LAPM)
Link Access Procedure for Modems (LAPM) is part of the V.42 error correction protocol for modems.
LAPM is an error control protocol defined in ITU-T recommendations V.42. Like many data link layer protocols, it is a variant of HDLC. Like the Microcom Networking Protocols that preceded it, LAPM uses cyclic redundancy checking (CRC) and retransmission of corrupted data (ARQ) to ensure data reliability.