Rec. ITU-T I.364 (03/1993) … SUPPORT OF BROADBAND CONNECTIONLESS DATA SERVICE ON B-ISDN
FOREWORD
CONTENTS
1 Scope
2 Framework for the provision of connectionless data service on B-ISDN
    2.1 Definition of a broadband connectionless data service on B-ISDN
    2.2 Functional architecture
    2.3 Interfaces
    2.4 Connections
    2.5 Protocols
    2.6 Numbering and addressing
    2.7 Traffic aspects
    2.8 Operations and maintenance
    2.9 Network charging capabilities
    2.10 Interworking with non-B-ISDN connectionless data protocols
    2.11 Interworking with connection oriented data services
3 Protocol for the support of connectionless data service on B-ISDN at the UNI
    3.1 Protocol architecture
    3.2 Service provided by the connectionless service layer
        3.2.1 Description of primitives
        3.2.2 Definition of parameters
    3.3 Service expected from the AAL
    3.4 Connectionless service layer functions
        3.4.1 Preservation of CLNAP-SDUs
        3.4.2 Addressing
        3.4.3 Carrier selection
        3.4.4 QOS selection
    3.5 CLNAP protocol data unit (PDU) structure and encoding
        3.5.1 Destination-address
        3.5.2 Source-address
        3.5.3 Higher-layer-protocol-identifier (HLPI)
        3.5.4 PAD-length
        3.5.5 Quality of service (QOS)
        3.5.6 CRC indication bit (CIB)
        3.5.7 Header extension length (HEL)
        3.5.8 Reserved
        3.5.9 Header extension
        3.5.10 User-information
        3.5.11 PAD
        3.5.12 CRC
    3.6 Procedures
4 Protocol for the support of connectionless data service on B-ISDN at the NNI
Annex A … Encodings
Appendix I … CRC32 generation and checking