Table of Contents

1 Overview
   1.1 Introduction
   1.2 Scope
2 References
3 Definitions
   3.1 Bridged Local Area Network
   3.2 Expedited traffic
   3.3 Group
   3.4 IEEE 802 Local Area Network (LAN)
4 Abbreviations
5 Conformance
   5.1 Required capabilities
   5.2 Optional capabilities
   5.3 Protocol Implementation Conformance Statement
   5.4 Recommendations
   5.5 MAC-specific bridging methods
6 Support of the MAC Service
   6.1 Support of the MAC Service
   6.2 Preservation of the MAC Service
   6.3 Quality of Service maintenance
   6.4 Internal Sublayer Service provided within the MAC Bridge
   6.5 Support of the Internal Sublayer Service by specific MAC
        procedures
   6.6 Filtering services in Bridged Local Area Networks
7 Principles of Bridge operation.
   7.1 Bridge operation.
   7.2 Bridge architecture
   7.3 Model of operation.
   7.4 Port States and the active topology
   7.5 Frame reception
   7.6 Frame transmission
   7.7 The Forwarding Process
   7.8 The Learning Process
   7.9 The Filtering Database
   7.10 Spanning Tree Protocol Entity and GARP Entities
   7.11 Bridge management
   7.12 Addressing
8 Spanning tree algorithm and protocol
9 Encoding of bridge protocol data units
   9.1 Structure
   9.2 Encoding of parameter types
   9.3 BPDU formats and parameters
10 GARP Multicast Registration Protocol (GMRP)
   10.1 Purpose
   10.2 Model of operation
   10.3 Definition of the GMRP Application
   10.4 Conformance to GMRP
11 Example 'C' code implementation of GMRP
12 Generic Attribute Registration Protocol (GARP)
   12.1 GARP overview
   12.2 GARP architecture
   12.3 Requirements to be met by GARP
   12.4 Requirements for interoperability between GARP
         Participants
   12.5 Conformance to GARP Applications
   12.6 Protocol Operation
   12.7 State machine descriptions
   12.8 Administrative controls
   12.9 Procedures
   12.10 Structure and encoding of GARP Protocol Data Units
   12.11 Timer values, granularity and relationships
   12.12 Interoperability considerations
13 Example 'C' code implementation of GARP
14 Bridge management
   14.1 Management functions
   14.2 Managed objects
   14.3 Data types
   14.4 Bridge Management Entity
   14.5 MAC Entities
   14.6 Forwarding Process
   14.7 Filtering Database
   14.8 Spanning Tree Protocol Entity
   14.9 GARP Entities
   14.10 GMRP entities
15 Management protocol
16 Bridge performance
   16.1 Guaranteed Port Filtering Rate
   16.2 Guaranteed Bridge Relaying Rate
17 Rapid Spanning Tree Protocol (RSTP)
   17.1 Protocol design requirements
   17.2 Protocol support requirements
   17.3 RSTP overview
   17.4 STP compatibility
   17.5 Spanning tree priority vectors
   17.6 Priority vector calculations
   17.7 Port Role assignments
   17.8 Communicating spanning tree information
   17.9 Changing spanning tree information
   17.10 Changing Port States
   17.11 Updating learned station location information
   17.12 RSTP and point-to-point links
   17.13 RSTP performance parameters
   17.14 Performance parameter management
   17.15 Rapid Spanning Tree state machines
   17.16 Notational conventions used in state diagrams
   17.17 State machine timers
   17.18 Per-Bridge variables
   17.19 Per-Port variables
   17.20 State machine conditions and parameters
   17.21 State machine procedures
   17.22 Port Timers state machine
   17.23 Port Receive state machine
   17.24 Port Protocol Migration state machine
   17.25 Bridge Detection state machine
   17.26 Port Transmit state machine
   17.27 Port Information state machine
   17.28 Port Role Selection state machine
   17.29 Port Role Transitions state machine
   17.30 Port State Transition state machine
   17.31 Topology Change state machine
   17.32 RSTP performance requirements
18 Bridge Detection state machine
Annex A (normative) PICS Proforma
      A.1 Introduction
      A.2 Abbreviations and special symbols
      A.3 Instructions for completing the PICS proforma
      A.4 PICS proforma for IEEE Std 802.1D
      A.5 Major Capabilities
      A.6 Media Access Control Methods
      A.7 Relay and filtering of frames
      A.8 Basic Filtering Services
      A.9 Addressing
      A.10 Rapid Spanning Tree Protocol
      A.11 BPDU Encoding
      A.12 Implementation Parameters
      A.13 Performance
      A.14 Bridge management
      A.15 Remote Management
      A.16 Expedited Traffic Classes
      A.17 Extended Filtering Services
      A.18 GMRP
      A.19 GARP
Annex B (informative) Calculating spanning tree parameters
Annex C (normative) Source-routing transparent bridge operation
      C.1 Overview
      C.2 Support of the MAC Service
      C.3 Principles of operation
      C.4 Bridge management
      C.5 Management protocol
Annex D (normative) PICS Proforma for source-routing transparent
        bridge operation
      D.1 Introduction
      D.2 Relay and filtering of frames
      D.3 Bridge numbers and LAN IDs
      D.4 Bridge management
Annex E (informative) Allocation of Object Identifier values
Annex F (informative) Preserving the integrity of FCS fields in
        MAC Bridges
      F.1 Background
      F.2 Basic mathematical ideas behind CRC and FCS
      F.3 Detection Lossless Circuit approach
      F.4 Algorithmic modification of an FCS
      F.5 Conclusions
Annex G (informative) User priorities and traffic classes
      G.1 Traffic types
      G.2 What are we managing?
      G.3 Traffic type to traffic class mapping
Annex H (informative) Generic Attribute Registration Protocol
        Design
      H.1 Use of an unconfirmed protocol
      H.2 Design of the Applicant state machine
      H.3 Design of the Registrar state machine
      H.4 Analysis of GARP State Machine Operation
Annex I (informative) Introduction of GARP, GMRP, and Extended
        Filtering Services
      I.1 Migration considerations
      I.2 Interoperability with higher-layer multicast protocols
          and related issues
Annex J (informative) RSTP Migration
      J.1 Overview of protocol changes
      J.2 BPDU formats
Annex K (informative) Frame duplication and misordering
      K.1 Background
      K.2 Frame duplication
      K.3 Frame misordering
      K.4 Other considerations

Abstract

The present standard positions the bridging function within an architectural description of the MAC Sublayer. It also defines the principles of operation of the MAC Bridge in terms of the support and preservation of the MAC Service, and the maintenance of QoS and specifies the MAC Internal Sublayer Service provided by individual LANs to the Media Access Method Independent Functions that provide frame relay in the Bridge.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Institute of Electrical & Electronics Engineers
Pages
ISBN
Supersedes	IEEE DRAFT 802.1P : D8 OCT 97 IEEE DRAFT 802.1D : D15 NOV 97 IEEE 802.1J : 1996 IEEE DRAFT 802.12E : D1 APR 97 IEEE 802.1T : 2001 IEEE 802.6K : 1992 IEEE 802.1W : 2001