Technical Committee on Open Systems
Preface
Foreword
Introduction
Technical Corrigendum 1
1 Scope
2 Normative References
3 Definitions
3.1 Global OSI Definitions
3.2 Association Control Service Element Definitions
3.3 Virtual Terminal Service Definitions
4 Abbreviations
4.1 General
4.2 Modes of Operation
4.3 VTE Model Components
4.4 Access-Rules
5 Conventions
6 General Features
6.1 Introduction
6.2 Features of the Virtual Terminal Basic Class
Services
6.3 VT Environment (VTE) and VTE-Parameters
6.4 Virtual Terminal Environment Profiles
6.5 Dialogue Control
7 Communication Facilities
7.1 Establishment Facility
7.2 Termination Facility
7.3 Negotiation Facility
7.4 Data Transfer Facility
7.5 Delivery Control Facility
7.6 Dialogue Management Facility
7.7 Interrupt Facilities
8 Modes of Operation
8.1 S-Mode
8.2 A-Mode
9 Access-Rules
10 VT Functional Units
10.1 Negotiation Functional Units
10.2 Negotiated Release Functional Unit
10.3 Urgent Data Functional Unit
10.4 Break Functional Unit
10.5 Enhanced Access-Rules Functional Unit
10.6 Structured Control Objects Functional Unit
10.7 Blocks Functional Unit
10.8 Fields Functional Unit
10.9 Reference Information Objects Functional Unit
11 VT Environment Profiles (VTE-Profiles)
12 The VTE Model
13 Display Objects
13.1 Structure
13.2 Attributes
14 Control Objects
14.1 CO Structure Facilities and Related
Restrictions
14.2 Standard Control Objects for Fields and
Controlled Data Entry
14.3 Standard Control Object for Dynamic Termination
Conditions
14.4 Standard Control Object for Notifying
Termination
14.5 Standard Control Object for Echo Control
15 Reference Information Objects
15.1 Structure
15.2 Generation and Use of RIOs
16 Device Objects
17 VTE Parameters and Directed Graph
17.1 Directed Graph of VTE-Parameters
17.2 VTE Consistency Rules
18 Display Object VTE-Parameters
18.1 Primary VTE-Parameters
18.2 Secondary VTE-Parameters
18.3 Tertiary VTE-Parameter
19 Operations on Display Objects
19.1 Addressing Operations
19.2 Update Operations
19.3 Access Control Over Display Object
20 Control Object VTE-Parameters
20.1 Usage and Effects of Control Object
VTE-Parameters
20.2 Usage and Effects of Data Element
VTE-Parameters
20.3 Standard Control Objects
21 Reference Information Object VTE-Parameters
21.1 Availability
21.2 VTE-Parameters for RIOs
22 Operations on Reference Information Objects
22.1 Availability
22.2 Identification of RIO and RIO Records
22.3 RIO Update Operations
22.4 RIO Reference Operations
23 Device Object VTE-Parameters
23.1 Default Control Object VTE-Parameters
23.2 Minimum Length VTE-Parameters
23.3 Device Object VTE-Parameters for Attributes
23.4 Termination VTE-Parameters
23.5 Interaction Between Use of TCCO or FDCO and
Device Object VTE-Parameters
24 Delivery Control, Synchronisation and Net-Effecting
24.1 No Delivery-Control
24.2 Simple Delivery-Control
24.3 Quarantine Delivery-Control
24.4 Implicit Delivery
24.5 Update Queues and Priority Handling
25 Communication Model
26 VT Services
27 VT Service Sequences
27.1 Phases
27.2 Phase Transitions
27.3 Ownership of the WAVAR Access-Right
27.4 Availability and Usage Conditions of VT
Services
27.5 Service Collisions in A-Mode
28 Establishment Facility
28.1 VT-ASSOCIATE Service
29 Termination Facility
29.1 Services
29.2 VT-RELEASE Service
29.3 VT-U-ABORT Service
29.4 VT-P-ABORT Service
30 Negotiation Facilities
30.1 Switch Profile Negotiation
30.2 Multiple Interaction Negotiation
30.3 Sequence Control for Multiple Interaction
Negotiation
31 Data Transfer Facility
31.1 VT-DATA Service
32 Delivery Control Facility
32.1 VT-DELIVER Service
32.2 VT-ACK-RECEIPT Service
33 Access-Right Management Facility
33.1 VT-GIVE-TOKENS Service
33.2 VT-REQUEST-TOKENS Service
34 Destructive Break Facility
34.1 VT-BREAK Service
Annexes
A - Default VTE-Profiles
B - Explanatory Notes
C - ASN.1 OBJECT IDENTIFIER values
D - Size of Urgent Control Objects