ANSI INCITS 349 : 2001

Foreword
Introduction
1 Scope
2 Normative References
   2.1 General Information Concerning References
   2.2 Approved References
   2.3 References Under Development
3 Definitions and Conventions
   3.1 Definitions
   3.2 Keywords
   3.3 Conventions
4 Structure and Concepts
   4.1 Introduction
   4.2 FC-4 General Description
   4.3 SB-2 Overview
   4.4 Channel-Path Elements
   4.5 Channel-Path Configurations
   4.6 Information Transfer
   4.7 Protocols
5 FC-PH Link Control
   5.1 FC-PH Link Control Overview
   5.2 Class of Service
   5.3 Buffer-to-Buffer Credit Reclamation
   5.4 SB-2 Sequences and Exchanges
   5.5 FC-PH Frame Header Fields
   5.6 Other FC-PH Mechanisms
6 Link-Level Functions
   6.1 Link-Level Function Overview
   6.2 FC-PH Basic-Link-Services
   6.3 FC-PH Extended Link Services
   6.4 SB-2 Link-Control Functions
7 N_Port Link Initialization
   7.1 N_Port Link Initialization Overview
   7.2 Link-Initialization Procedure
   7.3 Initialization Process for a Channel
   7.4 Initialization Process for a Control Unit
8 SB-2 Information Units
   8.1 SB-2 Information Unit Overview
   8.2 Rules for Sending SB-2 IUs
   8.3 SB-2 IU Structure
   8.4 SB-2 Header
   8.5 IU Header
   8.6 Device Information Block (DIB) Structure
   8.7 Command DIB Structure
   8.8 Command-Data DIB Structure
   8.9 Data DIB Structure
   8.10 Status DIB
   8.11 Control DIB Structure
   8.12 Link-Control DIB Structure
9 Device-Level Functions and Protocols
   9.1 Device-Level Operations
   9.2 Device-Level Controls
   9.3 Error Handling at the Device Level
   9.4 Resetting Event
   9.5 Special Functions
10 Link Error Detection
   10.1 Link Error Detection Overview
   10.2 SB-2 Timeouts
   10.3 SB-2 Link Failure
   10.4 Logical Path Timeout Error
   10.5 SB-2 Exchange Error
   10.6 Logical-Path-Not-Established Error
   10.7 Test Initialization Result Error
11 Error Recovery Actions
   11.1 Error Recovery Action Overview
   11.2 Link-Level Recovery
   11.3 Device-Level Recovery
Annexes
A Fabric Address Assignment
B Correlation of Exchanges of an Exchange Pair
C LRC Calculation
D Status/Chaining Summary
E Bibliography

Specifies a communication interface between a channel and I/O control units that utilize the Single-Byte Command Code Sets (SBCCS) as implemented in a wide range of data processing systems.