LAPD - D Channel Signalling for ISDN Basic Rate Access

 
Note: This is not intended to be a comprehensive description of all aspects of LAPD. Rather, the intention is to highlight key aspects of the protocol which are not always fully explained in text books on the subject.

 

1. An Introduction to LAPD

2. Glossary of Common Terms used and Models employed

3. LAPD Frames

3.1 Introduction to Layer Two Frames

3.2 Detailed Description of the Frames

3.3 A Note on Primitives

4. Modes of Service Supported by LAPD

4.1 Unacknowledged Service

4.2 Acknowledged Service

5. Connection Types

5.1 Broadcast Connections

5.2 Point to Point Connections

6. A Note on Logical Links

6.1 General

6.2 Linking the Application to LAPD

6.3 Relating LAPD to the Support of Layer Three

7. The Representation of Point to Point Connections by State Diagrams

7.1 General

7.2 Representation of Communication between Layer Three Peers

7.3 Representation by means of a State Transition