ISO/IEC 16500-2:1999

INTERNATIONAL ISO/IEC
STANDARD 16500-2
First edition
1999-12-15
Information technology — Generic digital
audio-visual systems —
Part 2:
System dynamics, scenarios and protocol
requirements
Technologies de l'information — Systèmes audiovisuels numériques
génériques —
Partie 2: Dynamique, scénarios et exigences de protocole des systèmes
Reference number
©
ISO/IEC 1999
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ii © ISO/IEC 1999 – All rights reserved

Contents Page
Foreword . v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Definitions . 1
4 Acronyms and abbreviations. 1
5 Conventions. 2
6 Requirements for DAVIC Systems. 2
7 Implementation Procedure. 2
8 Instance Development Tool . 2
9 DAVIC System Dynamic Modeling (DSDM) and Required Protocols. 3
9.1 General.3
9.1.1 DAVIC System Dynamic Modeling.3
9.1.2 Protocols Required for System Operation .4
9.2 DSDM for VoD .4
9.2.1 Functional Entities Used in Dynamic Modeling for VoD .4
9.2.2 Alternative DAVIC Physical Scenarios for the VoD Control Functional Entities .5
9.2.3 System Dynamic Flows for VoD.7
9.2.4 Functional Entity Actions for VoD.16
9.2.5 DAVIC Dynamic Flow Parameters for VoD.22
9.2.6 Specification of the Usage of DAVIC Protocol Tools for VoD .45
9.2.7 Protocol Network Architectures for DAVIC VoD .45
9.2.8 Rationale for the Physical Scenarios for VoD .46
9.2.9 Notes on Download Protocols for VoD.46
9.2.10 Cross-Reference to DAVIC Tool Definitions for VoD .51
9.2.11 Association Between Interfaces and Network Resources for VoD.52
9.2.12 Rationale behind the selection of the DAVIC VoD dynamic systems behavior.55
9.3 DSDM for SVB (Switched Video Broadcast).57
9.3.1 Overview .57
9.3.2 Functional Entities Used in Dynamic Modeling for SVB .57
9.3.3 System Dynamic Flows for SVB.59
9.3.4 Functional Entity Actions for DAVIC SVB .62
9.3.5 Dynamic Flow Parameters for SVB .63
9.4 DSDM for Interactive Broadcast (PSTN/ISDN Return Channel).69
9.4.1 Overview and Description of System Behavior.69
9.4.2 Protocol Network Architecture for Interactive Broadcast .72
9.4.3 DAVIC System Dynamic Flows for Interactive Broadcast .75
9.4.4 Functional Entity Actions for Interactive Broadcast.76
© ISO/IEC – All rights reserved                                   DAVIC 1.3.1a Part 12 (1999) iii

9.5 DAVIC Architecture and DSDM for Internet Access.78
9.5.1 Overview .78
9.5.2 Direct Internet Scenario 1a .89
9.5.3 Direct Internet Scenario 1b .93
9.5.4 Direct Internet Scenario 2a .102
9.5.5 Direct Internet Scenario 2b .111
9.5.6 Internet Access Scenarios 3a and 3b.113
9.5.7 Internet Access Scenario 4.121
9.5.8 Specification of the DAVIC Protocol Tools for Internet Access.131
9.5.9 PPP Access with Broadband Broadcast and S3 Capability.133
9.5.10 Authentication and Configuration Methods for Internet Access.140
9.5.11 DAVIC server DHCP Relay Operation for Internet Access .142
9.5.12 DHCP Options for Internet Access.153
9.5.13 DAVIC Defined Resource Descriptors for Internet Access.159
10 Configuration. 160
10.1 General . 160
10.2 STU Configuration (Boot). 161
10.3 Service Provider System Configuration.162
10.4 Download .163
10.4.1 General.163
10.4.2 The Download service: .164
10.4.3 Download System Dynamic Flows.164
10.4.4 Download initiated at session setup:.164
10.4.5 Download initiated during active session: .166
iv DAVIC 1.3.1a Part 12 (1999) © ISO/IEC – All rights reserved

Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission)
form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC
participate in the development of International Standards through technical committees established by the
respective organization to deal with particular fields of technical activity. ISO and IEC technical committees
collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in
liaison with ISO and IEC, also take part in the work.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.
In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.
Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this part of ISO/IEC 16500 may be the subject of
patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.
International Standard ISO/IEC 16500-2 was prepared by DAVIC (Digital Audio-Visual Council) and was adopted,
under the PAS procedure, by Joint Technical Committee ISO/IEC JTC 1, Information technology, in parallel with its
approval by national bodies of ISO and IEC.
ISO/IEC 16500 consists of the following parts, under the general title Information technology — Generic digital
audio-visual systems:
� Part 1: System reference models and scenarios
� Part 2: System dynamics, scenarios and protocol requirements
� Part 3: Contours: Technology domain
� Part 4: Lower-layer protocols and physical interfaces
� Part 5: High and mid-layer protocols
� Part 6: Information representation
� Part 7: Basic security tools
� Part 8: Management architecture and protocols
� Part 9: Usage information protocols
© ISO/IEC – All rights reserved                                   DAVIC 1.3.1a Part 12 (1999) v

Introduction
ISO/IEC 16500 defines the minimum tools and dynamic behavior required by digital audio-visual systems for
end-to-end interoperability across countries, applications and services. To achieve this interoperability, it defines
the technologies and information flows to be used within and between the major components of generic digital
audio-visual systems. Interoperability between these components and between individual sub-systems is assured
through specification of tools and specification of dynamic systems behavior at defined reference points. A
reference point can comprise one or more logical (non-physical) information-transfer interfaces, and one or more
physical signal-transfer interfaces. A logical interface is defined by a set of information flows and associated
protocol stacks. A physical interface is an external interface and is fully defined by its physical and electrical
characteristics. Accessible reference points are used to determine and demonstrate compliance of a digital audio-
visual subsystem with this international standard.
A summary of each part follows.
ISO/IEC 16500-1 (DAVIC 1.3.1a Part 2) defines the normative digital audio-visual systems technical framework.
It provides a vocabulary and a Systems Reference Model, which identifies specific functional blocks and
information flows, interfaces and reference points.
ISO/IEC 16500-2 (DAVIC 1.3.1a Part 12) defines system dynamic behavior and physical scenarios. It details the
locations of the control functional entities along with the normative protocols needed to support the systems
behavior. It is structured as a set of protocol walk-throughs, or “Application Notes”, that rehearse both the steady
state and dynamic operation of the system at relevant reference points using specified protocols. Detailed
dynamics are given for the following scenarios: video on demand, switched video broadcast, interactive broadcast,
and internet access
...