Technologies de l'information — Télécommunications et échange d'information entre systèmes — Applications du protocole au service de liaison de données OSI

Specifies general principles for the mappings between the OSI Data Link service, both connection-mode (CO-DLS) and connectionless-mode (CL-DLS), and standard Data Link protocols. Specifies the detailed mappings M1, M2, M5 and M6; also specifies the main features of the mappings M3 and M4. Does not specify individual implementations or products, nor does it constrain the implementation of Data Link entities and interfaces within an information processing system.