1 Scope
2 Normative references
    2.1 Identical Recommendations/International
          Standards
3 Definitions
    3.1 OSI Reference Model definitions
    3.2 Service Conventions definitions
    3.3 Data Link Service definitions
4 Abbreviations
5 Conventions
    5.1 General conventions
    5.2 Parameters
6 Overview of the Data Link Service
7 Classes and types of Data Link Service
8 Features of the connection-mode Data Link Service
9 Model of the connection-mode Data Link Service
    9.1 DLC Endpoint connection Identification
    9.2 Model of a Data-link-connection
10 Quality of connection-mode Data Link Service
    10.1 Determination of QOS for Connection-mode Service
    10.2 Definition of connection-mode QOS parameters
11 Sequence of primitives
    11.1 Concepts used to define the connection-mode
          Data Link service
    11.2 Constraints of Sequence of Primitives
12 Connection establishment phase
    12.1 Function
    12.2 Types of primitives and parameters
    12.3 Sequence of primitives
13 Connection release phase
    13.1 Function
    13.2 Types of primitive and parameters
    13.3 Sequence of primitives when releasing an
          established DLC
    13.4 Sequence of primitives in a DLS user rejection
          of DLC establishment attempt
    13.5 Sequence of primitives in a DLS provider rejection
          of a DLC establishment attempt
    13.6 Sequence of primitives in a DLS user abort of a DLC
          establishment attempt
14 Data transfer phase
    14.1 Data transfer
    14.2 Reset service
15 Features of the Connectionless-mode Data Link Service
16 Model of a data-link-connectionless-mode data
    transmission
17 Quality of Connectionless-mode service
    17.1 Determination of QOS for connectionless-mode data
          transmission
    17.2 Definition of connectionless-mode data transmission
18 Sequence of connectionless-mode primitives at one DLSAP
19 Data transfer
    19.1 Function
    19.2 Types of primitives and parameters
    19.3 Sequence of primitives