• BS ISO 8802-2:1989

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    Information technology. Telecommunications and information exchange between systems. Local and metropolitan area networks. Specific requirements Logical link control

    Available format(s):  Hardcopy, PDF

    Superseded date:  15-07-1995

    Language(s):  English

    Published date:  28-02-1991

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Section
    1 Introduction
    1.1 Scope and purpose
    1.2 Standards compatibility
    1.3 References
    1.4 Acronyms and definitions
    1.4.1 Acronyms
    1.4.2 Definitions
    2 LLC sublayer service specifications
    2.1 Network layer/LLC sublayer interface service
           specifications
    2.1.1 Overview of interactions
    2.1.2 Detailed service specifications
    2.2 LLC sublayer/MAC sublayer interface service
           specifications
    2.2.1 Overview of interactions
    2.2.2 Detailed service specifications
    2.3 LLC sublayer/LLC sublayer management function
           interface service specification
    3 LLC PDU structure
    3.1 General
    3.2 LLC PDU format
    3.3 Elements of the LLC PDU
    3.3.1 Address fields
    3.3.2 Control field
    3.3.3 Information field
    3.3.4 Bit order
    3.3.5 Invalid LLC PDU
    4 LLC types and classes of procedure
    4.1 General
    4.2 Classes of LLC
    4.2.1 Class I LLC
    4.2.2 Class II LLC
    5 LLC elements of procedure
    5.1 General
    5.2 Control field formats
    5.2.1 Information transfer format-I
    5.2.2 Supervisory format-S
    5.2.3 Unnumbered format-U
    5.3 Control field parameters
    5.3.1 Type 1 operation parameters
    5.3.2 Type 2 operation parameters
    5.4 Commands and responses
    5.4.1 Type 1 operation commands and responses
    5.4.2 Type 2 operation commands and responses
    6 LLC description of the type 1 procedures
    6.1 Modes of operation
    6.2 Procedure for addressing
    6.3 Procedure for the use of P/F bit
    6.4 Procedures for logical data link set-up and
           disconnection
    6.5 Procedures for information transfer
    6.5.1 Sending UI PDUs
    6.5.2 Receiving UI PDUs
    6.6 Uses of the XID command PDU and response PDU
    6.7 Uses of the TEST command PDU and response PDU
    6.8 List of logical data link parameters
    6.8.1 Maximum number of octets in a UI PDU
    6.8.2 Minimum number of octets in a PDU
    6.9 Precise description of the type 1 procedures
    6.9.1 LLC precise specification
    6.9.2 Station component overview
    6.9.3 Service access point (SAP) component overview
    7 LLC description of the type 2 procedures
    7.1 Modes
    7.1.1 Operational mode
    7.1.2 Non-operational mode
    7.2 Procedure for addressing
    7.3 Procedures for the use of the P/F bit
    7.4 Procedures for data link set-up and disconnection
    7.4.1 Data link connection phase
    7.4.2 Information transfer phase
    7.4.3 Data link disconnection phase
    7.4.4 Data link disconnected phase
    7.4.5 Contention of unnumbered mode setting command
           PDUs
    7.5 Procedures for information transfer
    7.5.1 Sending I PDUs
    7.5.2 Receiving and I PDU
    7.5.3 Reception of incorrect PDUs
    7.5.4 Reception of out-of-sequence PDUs
    7.5.5 Receiving acknowledgement
    7.5.6 Receiving a REJ PDU
    7.5.7 Receiving and RNR PDU
    7.5.8 LLC busy condition
    7.5.9 Waiting acknowledgement
    7.6 Procedures for resetting
    7.7 FRMR exception condition
    7.8 List of data link connection parameters
    7.8.1 Timer functions
    7.8.2 Maximum number of transmissions N2
    7.8.3 Maximum number of octets in an I PDU N1
    7.8.4 Maximum number of outstanding I PDUs k
    7.8.5 Minimum number of octets in a PDU
    7.9 Precise description of the type 2 procedures
    7.9.1 General
    7.9.2 Connection service component overview
    Figures
    1-1 Relationship to LAN reference model
    2-1 Service primitives
    2-2 Time-sequence diagrams
    3-1 LLC PDU format
    3-2a DSAP and SSAP address field formats
    3-2b Global DSAP address field format
    4-1 Balanced data link connection configuration
    4-2 Classes of LLC
    5-1 LLC PDU control field formats
    5-2 Type 1 operation command control field bit
           assignments
    5-3 XID information field basic format
    5-4 Type 1 operation response control field bit
           assignments
    5-5 Information transfer format control field bits
    5-6 Supervisory format control field bits
    5-7a Unnumbered format control field bits
    5-7b Unnumbered command and response control field bit
           assignments
    5-8 FRMR information field format
    6-1 Component relationships
    6-2 Station component state diagram
    6-3 Service access point component state diagram
    7-1 Connection component state diagram
    Tables
    6-1a Station component state transitions
    6-1b Station component options
    6-2 Service access point component state transitions
    7-1 Connection component state transitions

    Abstract - (Show below) - (Hide below)

    Specifies the functions, features, protocol, and services of the logical link control (LLC) sublayer in the ISO 8802 local area network protocol.

    General Product Information - (Show below) - (Hide below)

    Committee IST/6
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS EN 60870-6-2:1996 Telecontrol equipment and systems. Telecontrol protocols compatible with ISO standards and ITU-T recommendations Use of basic standards (OSI layers 1-4)
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