1 Introduction
II Summary of revisions
III Revision definitions
1 Overview
     1.1 Scope
     1.2 References
     1.3 Definition
     1.4 Abbreviation
     1.5 Conformance
     1.6 Recommendations
     1.7 MAC-specific bridging methods
2 Support of the MAC Service
     2.1 Support of the MAC Service
     2.2 Preservation of the MAC Service
     2.3 Quality of service maintenance
     2.4 Internal Sublayer Service provided within
           the MAC Bridge
     2.5 Support of the internal sublayer service by
           specific MAC procedures
3 Principles of operation
     3.1 Bridge operation
     3.2 Bridge architecture
     3.3 Model of operation
     3.4 Port states, Active Ports and the Active Topology
     3.5 Frame reception
     3.6 Frame transmission
     3.7 Frame forwarding
     3.8 The learning process
     3.9 The filtering database
     3.10 Bridge protocol entity
     3.11 Bridge management
     3.12 Addressing
4 The spanning tree algorithm and protocol
     4.1 Requirements to be met by the algorithm
     4.2 Requirements of the MAC bridges
     4.3 Overview
     4.4 Port states
     4.5 Protocol parameters and timers
     4.6 Elements of procedure
     4.7 Operation of the protocol
     4.8 Management of the bridge protocol entity
     4.9 Procedural model
     4.10 Performance
5 Encoding of bridge protocol data units
     5.1 Structure
     5.2 Encoding of parameter types
     5.3 BPDU Formats and parameters
6 Bridge management
     6.1 Management functions
     6.2 Managed objects
     6.3 Data types
     6.4 Bridge management entity
     6.5 Media access control entities
     6.6 Forwarding process
     6.7 Filtering database
     6.8 Bridge protocol entity
7 Management protocol
8 Bridge performance
     8.1 Guaranteed port filtering rate
     8.2 Guaranteed bridge relaying rate
Annex APICS Proforma
           A.1 Introduction
           A.2 Abbreviations and special symbols
           A.3 Instructions for completing the PICS proforma
           A.4 PICS proforma - 802.1D - identification
           A.5 Major capabilities and options
           A.6 Relay and Filtering of Frames
           A.7 Maintenance of Filtering Information
           A.8 Addressing
           A.9 Spanning Tree Algorithm
           A.10 Bridge Management
           A.11 Performance
Annex B Calculating spanning tree parameters
           B.1 Overview
           B.2 Abbreviations and special symbols
           B.3 Calculation
           B.4 Selection of parameter ranges
Annex C 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 DPICS 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