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Compaq OSI/FTAM D43, OSI/APLMGR D43 manual

Models: OSI/FTAM D43 OSI/APLMGR D43

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Introduction to the Compaq FTAM Responder

The Responder and Underlying Subsystems

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Compaq application, presentation, and session service provider (TAPS) processes perform the services of the Association Control Service Element (ACSE) in the Application Layer, plus the services of the Presentation Layer and the Session Layer. TAPS processes are provided by the OSI/AS subsystem.

Transport service provider (TSP) processes perform the services of the Transport Layer. These processes are provided by the OSI/TS subsystem.

•Network service provider (NSP) processes perform the services of the Network Layer and/or the Data Link Layer. These processes are provided by the X25AM and TLAM (or PAM for G06 and above releases) and TCP/IP subsystems.

The figure also shows the hardware used to implement Data Link Layer and Physical Layer OSI communications through TLAM (or PAM) or X25AM.

OSI/FTAM Responder Manual—425199-001

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Compaq OSI/FTAM D43, OSI/APLMGR D43 manual

Contents

Product Version AbstractSupported Releases Part NumberOrdering Information Document HistoryDocument Disclaimer Export StatementOSI/FTAM Responder Manual 1. Introduction to the Compaq FTAM Responder2. Conformance and Interoperatility 3. Compaq FTAM Responder Operation 4. Compaq FTAM Responder Support of ISO FTAM Functions5. Suggestions for Development of Remote Applications 6. Responder Manager A. Compaq FTAM Responder Diagnostic MessagesGlossary IndexTables continued Manual Information What’s New in This ManualNew and Changed Information AbstractWhat’s New in This Manual New and Changed InformationOSI/FTAM Responder Manual-425199-001 About This Manual Supported Standards Related Manuals Operator Messages Manual Your Comments InvitedGeneral Syntax Notation Notation Conventionserror error = NEXTFILENAME file-nameerror = COMPRESSEDIT filenum error = FILENAMECOMPARE filename1lengthNotation for Messages Notation for Management Programming Interfaces Functional Overview Introduction to the Compaq FTAM ResponderFTAM Applications Compaq FTAM ServicesFigure 1-1. An FTAM Service Using Four Primitives Initiating ProcessResponding Process Architectural Overview Management InterfacesThe Responder and Underlying Subsystems Compaq application, presentation, and session service provider TAPS processes perform the services of the Association Control Service Element ACSE in the Application Layer, plus the services of the Presentation Layer and the Session Layer. TAPS processes are provided by the OSI/AS subsystem CDT 204.CDD Figure 1-2. Compaq FTAM Responder Architectural OverviewThe Responder and the File System Introduction to the Compaq FTAM Responder The Responder and the File SystemOSI/FTAM Responder Manual-425199-001 2 Conformance and Interoperatility ConformanceInteroperability Service Classes Supported Basic Characteristics of FTAM ImplementationsUnderlying Services Roles of Initiator and ResponderFTAM Parameters AttributesLimitations on Value of Future-Filesize Attribute Document Types and Related ParametersMaximum-String-Length Parameter Mapping of Contents-Type ParametersString-Significance Parameter Universal-Class ParameterHandling of Escape Sequences Limits on Small String-Length Values With Large PDUsUse of Format Effectors Character SetsPresentation Encoding of FTAM PDUs and Data Writing of FTAM-2 FilesWhen receiving PDUs, Compaq FTAM supports all three options listed above. When sending PDUs, Compaq FTAM follows these rules Conformance and Interoperatility Presentation Encoding of FTAM PDUs and DataOSI/FTAM Responder Manual-425199-001 Responder Structure Compaq FTAM Responder OperationFigure 3-1. Compaq FTAM Responder Process Responder Data Flow2. The FTAM initiator follows the OSI protocol established on the initiating system to send the outgoing FTAM protocol data unit PDU over the network to the Compaq responding system, where it is received as an indication Compaq FTAM Responder Operation Responder Data FlowOSI/FTAM Responder Manual-425199-001 Table 4-1. Service Classes Supported by the Compaq FTAM Responder Service ClassesCompaq FTAM Responder Support of ISO FTAM Functions Supported FunctionsAttribute Support Attribute GroupsTable 4-2. Functional Units Supported by the Compaq FTAM Responder Table 4-3. Attribute Groups Supported by the Compaq FTAM ResponderAttribute Table 4-4. Attributes Supported by the Compaq FTAM ResponderFile Attribute Level of SupportDocument Types Create Mappings Mapping Between FTAM Contents Types and Compaq File Structuresfall within the range supported by the Compaq responder for that document type and string-significance value, as follows Select-Open Mappings Contents TypeCompaq File Structure Page Default Parameter Values Contents TypeCompaq File Structure DescriptionWrite Operations Maximum-String-Length Checking of Data ValuesRead Operations Limits on Small String-Length Values With Large PDUsKernel Group File Attributes File-Attribute MappingsFilename Attribute Contents-Type AttributePermitted-Actions Attribute Table 4-8. Actions Permitted for FTAM Document TypeNBS-9 Documents Table 4-10. Bit String for NBS-9 File Attributes $volume.subvol.DIRLISStorage Group File Attributes Table 4-11 summarizes the Compaq support for the storage attributes Security Group File Attributes Access-Control Attributewhich access to a file is allowed. ISO 8571-2 provides a complete description of the ISO FTAM access-control attribute Table 4-13. Mapping From FTAM Action List to Guardian Security If action list is set to…Guardian security is modified to… For delete-values Legal-Qualifications Attribute Supported and Unsupported Optional ParametersPrivate Group File Attributes Table 4-14. Mapping From Guardian Security to FTAM Action ListFile-Access and Security Considerations Guardian File Access Table 4-17. Guardian Access Required to Perform FTAM ActionsExclusion Mode FTAM VFS Actionactions are open for EXCLUSIVE access only one user at a time can open a file for writing. Where a combination of VFS actions are performed on a file, that file’s exclusion mode is EXCLUSIVE if any one of the actions qualify the file’s exclusion mode as EXCLUSIVE. If a file access is attempted on a file already opened for EXCLUSIVE access, the responder returns a diagnostic message to the remote application in the F-OPEN confirm Suggestions for Development of Remote Applications Error HandlingDesign and Programming InteroperabilityTroubleshooting The Compaq problem solver can use SCF commands to display configuration, status, and statistics information about the responder and APLMGR processes on the Compaq system. This information can sometimes provide clues to the cause of a problem, especially if an association is not yet established or if there are problems with system capacity or performance. In addition the STATUS SU command, which provides information about an FTAM association once it is established, can be especially useful in troubleshooting Suggestions for Development of Remote TroubleshootingApplications OSI/FTAM Responder Manual-425199-0016 Responder Manager Notes on ConfigurationOSI Address of Responder OSI address of responderInitiator-Identity and Filestore-Password Parameters Fault ToleranceProtocol-Error Counter Increasing Responder CapacityEvent Messages Failure to establish an association with a Compaq responder due to an invalid initiator ID or password Table A-1. Diagnostic Message Types Compaq FTAM Responder Diagnostic MessagesGeneral FTAM Diagnostic Messages Table A-2. Sources and Observers of ErrorsTable A-3. General FTAM Diagnostic Messages Recovery. No action is necessary Protocol and Supporting Service-Related Diagnostic Messages 1002 10011007 Unspecific FTAM protocol error1011 10091015 1016Association-Related Diagnostic Messages Table A-5. Association-Related Diagnostic Messages1017 2003 20022013 20142016 20152018 2020Selection-Related Diagnostic Messages 2021A-10 Table A-6. Selection-Related Diagnostic Messages 30003002 3005 30043006 A-123012 30073013 30163020 30183021 30223028 30273029 3030Table A-7. File-Management-Related Diagnostic Message File-Management-Related Diagnostic Messages4001 40024003 Access-Related Diagnostic Messages4005 40065000 Table A-8. Access-Related Diagnostic Messages5003 50015004 Bad FADU - size error5008 50055011 50125022 50155023 50245026 Table A-9. Access Contexts by Document Typ5027 A-225030 50285032 A-235036 Contents type inconsistentA-24 Table A-11. Recovery-Related Diagnostic Messages Recovery-Related Diagnostic Messages5040 6010Recovery-Related Diagnostic Messages Compaq FTAM Responder Diagnostic MessagesOSI/FTAM Responder Manual-425199-001 A-26Glossary Abstract Syntax Notation-1. See ASN.1APDU application protocol data unit. See PDU Application Manager. See APLMGR application service element. See ASEAssociation Control Service Element. See ACSE Compaq OSI/AS. See OSI/AS Compaq OSI/FTAM. See Compaq FTAM Compaq OSI/TS. See OSI/TSGlossary-4 connection endpoint identifier. See CEPI Data Definition Language. See DDLGlossary-5 Distributed Systems Management. See DSM end-of-file marker. See EOFGlossary-6 Event Management Service. See EMS external process name. See Guardian process name file-access data unit. See FADUfile-attribute group. See attribute group Glossary-8File Transfer, Access and Management. See FTAM File Utility Program. See FUPGlossary-9 Glossary-10 FTAM API. See APIThe file-access structure is an ordered tree Glossary-12 intermediate state. See state transitionInternational Standard. See IS International Organization for Standardization. See ISOISO646String. See VisibleString Management Information Base. See MIBmodule file management procedures. See MFM procedures National Institute of Science and Technology. See NISTGlossary-14 NonStop process pair. See process pair Open Systems Interconnection. See OSI object state. See state object state transition. See state transitionSPDU session PDU information exchanged between Session Layer entities PPDU presentation PDU. See PDU Glossary-19 protocol data unit. See PDUEstablishing the file-open regime root node. The first-level node in a hierarchical file. See root FADU Glossary-22 session selector. See SSEL session service access point. See SSAP session address. See SSAPSPDU session protocol data unit. See PDU structured query language. See SQL Subsystem Control Facility. See SCF Subsystem Control Point. See SCP Tandem Advanced Command Language. See TACLSubsystem Programmatic Interface. See SPI summary-state transition. See state transitionTransaction Application Language. See TAL TPDU transport protocol data unit. See PDUtransition state. See state transition. transport address. See TSAP transport selector. See TSELGlossary-27 virtual filestore. See VFSGlossary-28 Index Page Page Index-4 Page Page Page Index-8