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BS ISO 8802-2:1989

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

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Superseded date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

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

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

Committee
IST/6
DocumentType
Standard
Pages
124
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
ISO 8802-2:1989 Identical
ISO/IEC 8802-2:1998 Identical

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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