IEC 62481-8:2017

Digital living network alliance (DLNA) home networked device interoperability guidelines - Part 8: Diagnostics

IEC 62481-8:2017(E) specifies guidelines for Diagnostics. The DLNA Diagnostics guidelines focus mostly on the collection of data through test actions and queries. The procedures for troubleshooting and remedies are outside the scope of the DLNA guidelines. The user can be an operator accessing the Diagnostics Application through a TR-069 (an application layer protocol for remote management of end-user devices) management interface, or a technician or end-user accessing it through a browser or screen interface as shown in Figure 1.

General Information

• Status: Published
• Publication Date: 26-Jul-2017
• ICS: 33.160 - Audio, video and audiovisual engineering
• ICS: 35.100.05 - Multilayer applications
• ICS: 35.110 - Networking
• Technical Committee: TA 18 - Multimedia home systems and applications for end-user networks
• Current Stage: PPUB - Publication issued
• Start Date: 04-Aug-2017
• Completion Date: 27-Jul-2017

Standards Content (Sample)

IEC 62481-8 ®
Edition 1.0 2017-07
INTERNATIONAL
STANDARD
colour
inside
Digital living network alliance (DLNA) home networked device interoperability
guidelines –
Part 8: Diagnostics
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

IEC Central Office Tel.: [phone]
3, rue de Varembé Fax: [phone]
CH-1211 Geneva 20 [e-mail]
Switzerland www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 20 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 65 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and

CISPR.
IEC Just Published - webstore.iec.ch/justpublished

Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc
details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: [e-mail].
IEC 62481-8 ®
Edition 1.0 2017-07
INTERNATIONAL
STANDARD
colour
inside
Digital living network alliance (DLNA) home networked device interoperability

guidelines –
Part 8: Diagnostics
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.160; 35.100.05; 35.110 ISBN 978-2-8322-4550-7

– 2 – IEC 62481-8:2017 © IEC 2017
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and definitions . 6
3.1 Definition of terms . 6
3.2 Conventions . 7
4 Networking architecture and guideline conventions . 7
4.1 DLNA home networking architecture . 7
4.2 Document conventions . 7
4.3 Guideline structure and layout . 7
5 DLNA Device Model. 7
5.1 General . 7
5.2 Diagnostic Device Functions . 7
5.3 Device Capabilities . 8
5.4 System usages . 8
6 Diagnostics guidelines . 10
6.1 General . 10
6.2 Device Discovery & Control . 10
6.3 UPnP BasicManagement. 11
6.4 UPnP ConfigurationManagement . 13
6.5 1905 Topology Discovery and Link Metrics . 17
6.6 Diagnostics Application . 18
6.7 UPnP BasicManagement Control Point . 19
6.8 UPnP ConfigurationManagement Control Point . 20
Annex A (informative) Diagnostics usage examples . 22
A.1 Overview. 22
A.2 Using a TR-069 service provider interface. 22
A.3 Providing an end user interface . 23
A.3.1 General . 23
A.3.2 Potential troubles . 23
A.3.3 User interface diagnostics functions . 23
A.3.4 Example guided troubleshooting flow . 23

Figure 1 – Diagnostics system usage . 9
Figure 2 – Examples of diagnostics usage in the context of DLNA 2-box Pull and 3-

box usage models . 10
Figure A.1 – End-to-end infrastructure . 22
Figure A.2 – Guided troubleshooting flow chart . 25

Table A.1 – Trouble scenarios . 23

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
DIGITAL LIVING NETWORK ALLIANCE (DLNA) HOME
NETWORKED DEVICE INTEROPERABILITY GUIDELINES –

Part 8: Diagnostics
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62481-8 has been prepared under technical area 8: Multimedia
home systems and applications for end-user network, of IEC technical committee 100: Audio,
video and multimedia systems and equipment.
The text of this International Standard is based on the following documents:
CDV Report on voting
100/2746/CDV 100/2890/RVC
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 4 – IEC 62481-8:2017 © IEC 2017
A list of all parts of IEC 62481 series, published under the general title Digital Living Network
Alliance (DLNA) home networked device interoperability guidelines, can be found on the IEC
website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
INTRODUCTION
Consumers are acquiring, viewing, and managing an increasing amount of digital media
(photos, music, and video) on devices in the consumer electronics (CE), mobile, and personal
computer (PC) domains. As such, they want to conveniently enjoy the content, regardless of
the source, across different devices and locations in the home. The digital home vision
integrates the internet, mobile, and broadcast networks through a seamless, interoperable
network, which will provide a unique opportunity for manufacturers and consumers alike. In
order to deliver on this vision, a common set of industry design guidelines is needed that
allows vendors to participate in a growing marketplace, leading to more innovation, simplicity,
and value for consumers. This document serves that purpose and provides vendors with the
information needed to build interoperable networked platforms and devices for the digital
home.
– 6 – IEC 62481-8:2017 © IEC 2017
DIGITAL LIVING NETWORK ALLIANCE (DLNA) HOME
NETWORKED DEVICE INTEROPERABILITY GUIDELINES –

Part 8: Diagnostics
1 Scope
This part of IEC 62481 specifies guidelines for Diagnostics. The DLNA Diagnostics guidelines
focus mostly on the collection of data through test actions and queries. The procedures for
troubleshooting and remedies are outside the scope of the DLNA guidelines. The user can be
an operator accessing the Diagnostics Application through a TR-069 (an application layer
protocol for remote management of end-user devices) management interface, or a technician
or end-user accessing it through a browser or screen interface as shown in Figure 1.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their
content constitutes requirements of this document. For dated references, only the edition
cited applies. For undated references, the latest edition of the referenced document (including
any amendments) applies.
IEC 62481-1-1:2017, Digital living network alliance (DLNA) home networked device
interoperability guidelines – Part 1-1: Architecture and protocols
IEEE 1905, IEEE Standard for a Convergent Digital Home Network for Heterogeneous
Technologies, Institute of Electrical and Electronics Engineers
http://standards.ieee.org/about/get/
UPnP BasicManagement:2, UPnP Forum
http://upnp.org/specs/dm/UPnP-dm-BasicManagement-v2-Service.pdf
UPnP ConfigurationManagement:2, UPnP Forum
http://upnp.org/specs/dm/UPnP-dm-ConfigurationManagement-v2-Service.pdf
3 Terms, definitions and definitions
For the purposes of this document, the terms and definitions given in IEC 62481-1-1 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1 Definition of terms
3.1.1
Diagnostics Controller
DLNA Device Capability that invokes diagnostics actions on a Diagnostics Device

3.1.2
Diagnostics Endpoint
DLNA Device Capability that accepts diagnostics actions from a Diagnostics Controller
3.1.3
BMS
BasicManagement Service
UPnP service that provides access to basic diagnostics functionality through action requests
Note 1 to entry: The BasicManagement Service specification is a standard UPnP DCP.
3.1.4
CfgMS
ConfigurationManagement Service
UPnP service that makes available device information through action requests
Note 1 to entry: The ConfigurationManagement Service specification is a standard UPnP DCP.
3.2 Conventions
In IEC 62481-1-1:2017 and this document, a number of terms, conditions, mechanisms,
sequences, parameters, events, states, or similar terms are printed with the first letter of each
word in uppercase and the rest lowercase (e.g. Move). Any lowercase uses of these words
have the normal technical English meanings.
4 Networking architecture and guideline conventions
4.1 DLNA home networking architecture
This document extends the DLNA home networking architecture that is defined in Clause 4,
IEC 62481-1-1:2017.
4.2 Document conventions
See Clause 6 of IEC 62481-1-1:2017 for a description of the DLNA document conventions.
4.3 Guideline structure and layout
See 7.1 of IEC 62481-1-1:2017 for guideline and attribute table layout descriptions.
5 DLNA Device Model
5.1 General
Refer to Clause 5 of IEC 62481-1-1:2017 for detailed descriptions of the existing DLNA
Device Model. This document extends the existing DLNA devices and system usages.
5.2 Diagnostic Device Functions
For the Diagnostics guidelines, the following Device Functions are defined.
• UPnP BasicManagement Service: a UPnP BasicManagement Service makes available
diagnostics features and functions and services diagnostics action requests.
• UPnP ConfigurationManagement Service: a UPnP ConfigurationManagement Service
makes available device information through action requests.
• UPnP BasicManagement Control Point: a UPnP BasicManagement Control Point issues
action requests to UPnP BasicManagement Service to implement diagnostics features and
functions.
– 8 – IEC 62481-8:2017 © IEC 2017
• UPnP ConfigurationManagement Control Point: a UPnP ConfigurationManagement Control
Point issues action requests to ConfigurationManagement Services to get device
information.
• Diagnostics Application: a Diagnostics Application interfaces with a UPnP
BasicManagement Control Point, UPnP ConfigurationManagement Service, 1905
Management Primitives, and other not-specified-by-DLNA diagnostics Device Functions to
provide meaningful and actionable information regarding DLNA devices. It provides input
to a user or management system interface to enable a user to control and see results from
diagnostics features and functions.
• 1905 Management Primitives: a function that provides a 1905 signaling capability on a
physical interface. It can also receive requests and report 1905 data to a co-resident
Diagnostics Application.
5.3 Device Capabilities
For the Diagnostics guidelines, the following Device Capabilities are defined:
• a Diagnostics Endpoint (+DIAGE+) with the role of offering diagnostics services and
responding to diagnostics action requests;
• a Diagnostics Controller (+DIAGC+) with the role of providing a Diagnostics Application
and a control point for issuing action requests to a Diagnostics Endpoint.
5.4 System usages
The diagnostics system usage has a Diagnostics Controller capability to instruct a Diagnostics
Endpoint capability to execute specific diagnostics actions.
+DIAGE+
+DIAGC+
Specified
②
UPnP BM Basic
Control Management
Unspecified service
Point UPnP ③
(Layer 4 diags)
②
UPnP CM
Configuration
Control
Management
Point
UPnP ③
service
②
MPs
(Layer 2 diags) MPs
③
1905/
Layer2
Diagnostics
Application
①
④
Internet
④
①
Web UI or ①
④
TR-069 direct UI
Web UI
Eg: internal display
Eg: web
Eg: ACS or HDMI to a TV
browser
monitor
service provider service provider service provider
or or or
home owner home owner home owner

IEC
Figure 1 illustrates this device interaction model. The following steps are performed in this
system usage:
1. User or management system interacts with Diagnostics Application (unspecified in DLNA).
2. Diagnostics Application invokes UPnP actions or 1905 messages to request diagnostics
functions.
3. Transport diagnostics information via UPnP action or 1905 messages.
4. Present diagnostics information to user or management system (unspecified in DLNA).
NOTE The Diagnostics Controller (+DIAGC+) capability and the Diagnostics Endpoint (+DIAGE+) capability
functionality can be incorporated in any valid DLNA Device Class. Thus both capabilities inherit other Device
Functions (e.g. IP Connectivity) at other layers in the DLNA Device Architecture, for the purpose of DLNA
certification. Implementing these capabilities external to an existing DLNA Device Class (e.g., as a stand-alone
device) is not prohibited, but such usages will not be included in DLNA’s certification procedures.
+DIAGE+
+DIAGC+
Specified
②
Basic
UPnP BM
Management
Control
Unspecified
Point UPnP ③ service
(Layer 4 diags)
②
UPnP CM
Configuration
Control
Management
Point
UPnP ③
service
②
MPs
(Layer 2 diags) MPs
③
1905/
Layer2
Diagnostics
Application
①
④
Internet
④
①
Web UI or
①
④
TR-069 direct UI
Web UI
Eg: internal display
Eg: web
Eg: ACS or HDMI to a TV
browser
monitor
service provider
service provider service provider
or or or
home owner home owner home owner

IEC
Figure 1 – Diagnostics system usage
Figure 2 provides some examples of how the new capabilities can exist within some of the
existing DLNA Devices Classes, and potential usages in the context of 2-box pull and 3-box
scenarios.
– 10 – IEC 62481-8:2017 © IEC 2017
DMS XDMR
③
+DIAGE+
+DIAGC+
②
④
Web
Web UI
Browser
RUI Client
①
RUI Server
(e.g., HTML-5)
(e.g., HTML-5)
The Diagnostics Controller requests diagnostics
③
① User’s XDMR web browser UI presents the
information Diagnostics Endpoints on the XDMR
option of viewing the remote UI of the
Diagnostics Application resident on the DMS.
DMS Diagnostics Application remote UI presents
④
User requests that Diagnostics tests be run. the user with the results of the Diagnostics tests.
②
XDMR
①
+DIAGE+
DMC
+DIAGC+
DMS
Local UI
+DIAGE+
①
User accesses local Diagnostics Application by using the UI on the DMC and requests diagnostics testing.
①
Diagnostics Controller gets diagnostics information from all Diagnostics Endpoints and presents the user
with the results.
IEC
Figure 2 – Examples of diagnostics usage in the context of
DLNA 2-box Pull and 3-box usage models
6 Diagnostics guidelines
6.1 General
Clause 6 contains guidelines for Device Functions that are elements of DLNA Diagnostics
Endpoint and Controller capabilities.
6.2 Device Discovery & Control
6.2.1
UIDELINE] A Diagnostics Endpoint capability shall be allowed to be deployed in conjunction
[G
with any DLNA Device Class.
[ATTRIBUTES]
M +DIAGE+ n/a n/a IEC 62481-1- AUJYC
1:2017
[COMMENT] These capabilities can also exist externally to DLNA Device Classes. However,
such existence is outside the scope of these guidelines. By existing within a DLNA Device
Class, these capabilities inherit all the networking and connectivity functionality of the
underlying DLNA Device Class.
6.2.2
[GUIDELINE] A Diagnostics Controller capability shall be allowed to be deployed in
conjunction with any DLNA Device Class.
[ATTRIBUTES]
M +DIAGC+ n/a n/a IEC 62481-1- K5GU7
1:2017
[COMMENT] These capabilities can also exist external to DLNA Device Classes. However, such
existence is outside the scope of these guidelines. By existing within a DLNA Device Class,
these capabilities inherit all of the networking and connectivity functionality of the underlying
DLNA Device Class.
6.2.3
[GUIDELINE] A Diagnostics Endpoint shall conform to all guidelines in Clause 9 of IEC 62481-
1-1:2017 pertaining to UPnP devices and UPnP endpoints.
[ATTRIBUTES]
M +DIAGE+ n/a n/a IEC 62481-1- QN85V
1:2017
6.2.4
[GUIDELINE] A Diagnostics Controller shall conform to all guidelines in Clause 9 of
IEC 62481-1-1:2017 pertaining to UPnP control points and UPnP endpoints.
[ATTRIBUTES]
M +DIAGC+ n/a n/a IEC 62481-1- 3MTLJ
1:2017
6.2.5
[GUIDELINE] A Diagnostics Endpoint capability shall use the value of "+DIAGE+" for the dlna-
dev-capability field.
TTRIBUTES]
[A
M A +DIAGE+ n/a n/a IEC 62481-1- PU6TJ
1:2017
6.3 UPnP BasicManagement
6.3.1
[GUIDELINE] If a DLNA Device Class contains the Diagnostics Endpoint capability then it shall
implement a UPnP BasicManagement Service Device Function.
[ATTRIBUTES]
M A +DIAGE+ n/a n/a n/a SYRX9
– 12 – IEC 62481-8:2017 © IEC 2017

6.3.2
[GUIDELINE] A UPnP BasicManagement Service shall implement the required actions and
state variables defined in UPnP BasicManagement:2.
[ATTRIBUTES]
M R +DIAGE+ n/a n/a UPnP S3K4Q
BasicManagem
ent:2
[COMMENT] BMS:GetDeviceStatus is the only required action and BMS.DeviceStatus is the
only required state variable.
6.3.3
[GUIDELINE] A UPnP BasicManagement Service shall implement the diagnostics feature as
specified in UP
...