1 General
2
Concepts and terminology
3
Overview description of LAPD functions and procedures
3.1 General
3.2 Unacknowledged operation
3.3 Acknowledged operation
3.4 Establishment of information transfer modes
4
Service characteristics
4.1 General
4.2 Services provided to layer 3
4.3 Services provided to layer management
4.4 Administrative services
4.5 Model of the data link service
4.6 Services required from the physical layer
5
Data link layer - Management structure
5.1 Data link procedure
5.2 Multiplex procedure
5.3 Structure of the data link procedure
5.4 Overall data link layer functional diagram
References