BS ISO/IEC 9314-8:1998
Current
The latest, up-to-date edition.
Information processing systems. Fibre Distributed Data Interface (FDDI) Media access control-2 (MAC-2)
Hardcopy , PDF
English
15-12-1998
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Definitions
4 Conventions and abbreviations
4.1 Conventions
4.1.1 Addressing
4.1.2 Timing values and timers
4.2 Abbreviations
5 General description
6 Services
6.1 MAC-to-LLC services
6.2 MAC-to-PHY services
6.3 MAC-to-H-MUX services
6.4 MAC-to-SMT services
7 Facilities
7.1 Symbol set
7.1.1 Line state symbols
7.1.2 Control symbols
7.1.3 Data Quartets (O-F)
7.1.4 Violation symbol (V)
7.2 Protocol Data Units
7.2.1 Token
7.2.2 Frame
7.3 Fields
7.3.1 Preamble (PA)
7.3.2 Starting Delimiter (SD)
7.3.3 Frame Control (FC)
7.3.4 Destination and source addresses
7.3.5 Routing Information (RI) field
7.3.6 Information (NFO) field
7.3.7 Frame Check Sequence (FCS)
7.3.8 Ending Delimiter (ED)
7.3.9 Frame Status (FS)
7.4 Timers
7.4.1 Token-Holding Timer (THT)
7.4.2 Valid-Transmission Timer (TVX)
7.4.3 Token-rotation Timer (TVX)
7.4.4 Late Counter (Late_ct)
7.4.5 Token Counter (Token_ct)
7.5 Frame counts
7.5.1 Frame_ct
7.5.2 Error_ct
7.5.3 Lost_ct
7.5.4 Copied_ct
7.5.5 Transmit_ct
7.5.6 Not_Copied_ct
8 Operation
8.1 Overview
8.1.1 Frame transmission
8.1.2 Token transmission
8.1.3 Frame stripping
8.1.4 Ring scheduling
8.1.5 Ring monitoring
8.2 Structure
8.3 Receiver
8.3.1 Token and frame validity criteria
8.3.2 State R0: LISTEN
8.3.3 State R1: AWAIT_SD (Await Starting
Delimiter)
8.3.4 State R2: RC_FR_CTRL (Receive Frame
Control Field)
8.3.5 State R3: RC_FR_BODY (Receive Frame Body)
8.3.6 State R4: RC_FR_STATUS (Receive Frame
Status)
8.3.7 State R5: CHECK_TK Check Token)
8.4 Transmitter
8.4.1 State T0: TX_IDLE (Transmitter Idle)
8.4.2 State T1: REPEAT (Repeat)
8.4.3 State T2: TX_DATA (Transmit data)
8.4.4 State T3: ISSUE_TK (Issue Token)
8.4.5 State T4: CLAIM_TK (Claim Token)
8.4.6 State T5: TX_BEACON (Transmit Beacon)
Annex A (informative) Addressing
A.1 General structure
A.2 Administration of addresses
A.2.1 Locally administered addresses
A.2.2 Universally administered addresses
A.3 Transmission order
A.3.1 Representation of addresses
A.4 Group addresses
A.4.1 Broadcast address
A.4.2 Assignment of group addresses for use in
standards
A.4.3 Group addresses assigned for use in FDDI
A.5 Source routing addressing
A.6 References
Annex B (informative) Frame Check Sequence
B.1 Description
B.2 Generation of the FCS
B.3 Checking the FCS
B.4 Implementation
B.5 Related standards
Annex C (informative) Bridging
C.1 Bridge architectures
C.2 Destination address recognition
C.3 Indicator setting
C.4 Stripping
Annex D (informative) Elements of timer calculation
Annex E (informative) Bibliography
Tables
1 Interpretation of FC field
Figures
1 FDDI structure
2 Token ring logical configuration example
3 MAC Receiver state diagram
4 MAC Transmitter state diagram
B.1 FCS implementation example
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