ANSI INCITS TR 20 : 1998

1 Introduction and scope
2 Normative references
  2.1 Approved references
  2.2 References under development
  2.3 Other references
3 Definitions and conventions
  3.1 Definitions
  3.2 Editorial conventions
      3.2.1 Binary notation
      3.2.2 Hexadecimal notation
  3.3 Abbreviations, acronyms, and symbols
      3.3.1 Acronyms and abbreviations
  3.4 Applicability and use of this document
4 Structure and concepts
  4.1 Summary of Private Loop versus Public Loop behaviors
  4.2 Private Loop and Public Loop addressing
  4.3 FL_Port and Fabric operation
      4.3.1 Collection of frames
      4.3.2 Delivery of frames
      4.3.3 Open and close behavior
      4.3.4 Services provided by the Fabric
      4.3.5 Loop Fabric Address
      4.3.6 Broadcast and multicast
  4.4 NL_Port operation
  4.5 N_Port operation with NL_Ports
  4.6 Document structure
  4.7 Compliance levels
5 NL_Port common feature sets
  5.1 FLOGI request parameters for NL_Ports
  5.2 PLOGI features and parameters for NL_Ports
      5.2.1 PLOGI Common Service Parameters for NL_Ports
      5.2.2 PLOGI Class 2 Service Parameters
      5.2.3 PLOGI Class 3 Service Parameters
  5.3 Other NL_Port FC-PH Features
  5.4 P_RJT and F_BSY/P_BSY frames
  5.5 FC-AL features
  5.6 NL_Port initialization features
  5.7 Extended Link Services
  5.8 Well-known address usage by NL_Ports
6 Fabric and FL_Port feature sets
  6.1 FLOGI ACC features and parameters to NL_Ports
  6.2 Well-known addresses
      6.2.1 Features for N_Ports at well-known addresses
      6.2.2 PLOGI Common Service Parameters for N_Ports
            at well-known addresses
      6.2.3 PLOGI Class 2 Service Parameters for N_Ports
            at well-known addresses
      6.2.4 PLOGI Class 3 Service Parameters for N_Ports
            at well-known addresses
      6.2.5 Other FC-PH Features for N_Ports at well-known
            addresses
      6.2.6 Extended Link Services for N_Ports at well-known
            addresses
  6.3 Other Fabric features
  6.4 Fabric_Port_Reject (F_RJT) frames
      6.4.1 F_RJT frame delimiters
      6.4.2 Generation of F_RJT frames
  6.5 FC-AL features for FL_Ports
  6.6 FL_Port initialization features
7 N_Port feature sets
  7.1 PLOGI features and parameters for N_Ports
      7.1.1 PLOGI Common Service Parameters for N_Ports
      7.1.2 PLOGI Class 2 Service Parameters
      7.1.3 PLOGI Class 3 Service Parameters
  7.2 Other N_Port FC-PH features
  7.3 P_RJT and F_BSY/P_BSY frames
  7.4 N_Port initialization features
  7.5 Extended Link Services
  7.6 Well-known address usage by N_Ports
8 Timers on a Public Loop
  8.1 Loop Initialization Sequence Hold Time
      (LIS_HOLD_TIME)
  8.2 Error Detect Timeout (E_D_TOV)
  8.3 Resource Allocation Timeout (R_A_TOV)
  8.4 Resource Recovery Timer (RR_TOV)
  8.5 ULP Timer (ULP_TOV)
Annex A
A.1 Extended Link Services
    A.1.1 Fabric Address Notification (FAN)
    A.1.2 Loop Initialize (LINIT)
    A.1.3 Loop Port Control (LPC)
    A.1.4 Loop Status (LSTS)
    A.1.5 Registered State Change Notification (RSCN)
    A.1.6 State Change Registration (SCR)
Annex B
B.1 Introduction
B.2 SCSI-FCP as an FC-FLA ULP
    B.2.1 How FC-FLA Supersedes FC-PLDA
    B.2.2 Summary of Additional Features for FC-FLA
          SCSI Operation
B.3 IP as an FC-FLA ULP
Annex C
C.1 Introduction
C.2 Use of Registered State Change Notification to Assist
    I/O Probing in Switched Mass Storage Topologies
    C.2.1 Background Information
    C.2.2 Specific Requirements for a Solution
    C.2.3 Additional Tools Required by System Components
    C.2.4 Example Usage of RSCN and SCR ELS
C.3 Name Service Usage
    C.3.1 Initial Condition of Name Service Following First
          Loop Initialization
    C.3.2 Implicit Registration of N_Ports and NL_Ports from
          FLOGI Parameters
    C.3.3 Explicit Registration of FC-4 Types
    C.3.4 Querying the Name Service
    C.3.5 Name Service Request Sequences
C.4 FC-FLA Loop Initialization Examples
    C.4.1 Power-up Initialization Example
    C.4.2 Changed NL_Port Example
Annex D
D.1 Introduction
D.2 OPN and CLS latencies
Annex E
E.1 Introduction
E.2 Frame Collection Methods
E.3 Frame Collection Delivery Triggers
Figures
Tables

Specifies Fibre Channel options between FL-Ports and Public NL-Ports, between Public NL-Ports and other Public Ports (whether on the same or different loops), and between Public NL-Ports and N-Ports. Also provides some direction for SCSI and IP options for communication across a fabric between NL-Ports and N-Ports. To serve as an implementation guide, primary objective to maximize the likelihood of interoperability between conforming implementations. Prohibits or requires features that are optional and prohibits use of some non-optional features in the referenced ANSI standards. Second objective is to simplify implementations and associated documentation, testing and support requirements. Internal characteristics of conformant implementations are not defined in this Technical Report.