ISO/IEC 29341-18-11:2011

ISO/IEC 29341-18-11
Edition 1.0 2011-08
INTERNATIONAL
STANDARD
colour
inside
Information technology – UPnP device architecture –
Part 18-11: Remote Access Device Control Protocol – Remote Access Discovery
Agent Service
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ISO/IEC 29341-18-11
Edition 1.0 2011-08
INTERNATIONAL
STANDARD
colour
inside
Information technology – UPnP device architecture –
Part 18-11: Remote Access Device Control Protocol – Remote Access Discovery
Agent Service
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
F
ICS 35.200 ISBN 978-2-88912-643-9

29341-18-11 © ISO/IEC:2011(E)
CONTENTS
1  Overview and Scope . 3
1.1  Introduction . 3
1.2  Vendor-defined Extensions . 4
1.3  References . 4
1.3.1  Normative References . 4
1.3.2  Informative References . 4
2  Service Modeling Definitions . 4
2.1  Service Type . 4
2.2  Terms and Abbreviations . 5
2.2.1  Abbrevia tions . 5
2.2.2  Terms . 5
2.3  RADAConfig Service Architecture . 6
2.4  State Vari ables . 6
2.4.1  State Variable Overview . 6
2.4.2  SystemInfo . 6
2.4.3  SystemInfoUpdateID . 6
2.4.4  A_ARG_TYPE_FilterList . 7
2.4.5  A_ARG_TYPE_UUID . 7
2.5  Eventing and Moderation . 7
2.5.1  Relationships Between State Variables . 7
2.6  Actions . 7
2.6.1  GetSystemInfo() . 7
2.6.2  EditFilter() . 8
2.6.3  Relationships Between Actions . 9
2.6.4  Error Code Summary . 9
2.7  Theory of Operation . 10
2.7.1  Getting Partial SystemInfo . 10
2.7.2  Filter Editing . 10
3  XML Service Description . 11
4  Test . . 12
Annex A RemoteAccessDiscoveryAgent Structures (Normative) . 13
A.1  FilterList Te mplate . 13

Figure 1-1 — SSDP Aggregati on. . 3

Table 2-1 — Abbreviati ons . 5
Table 2-2 — State Variables . 6
Table 2-3 — Eventing and Moderation . 7
Table 2-4 — Actions . 7
Table 2-5 — Arguments for GetSystemInfo() . 8
Table 2-6 — Error Codes for GetSystemInfo() . 8
Table 2-7 — Arguments for EditFilter() . 8
Table 2-8 — Error Codes for EditFilter() . 9

XXX: © IEC:2010 2 29341-18-11 © ISO/IEC:2011(E)
Table 2-9 — Error Code Summary . 10

29341-18-11 © ISO/IEC:2011(E)
INFORMATION TECHNOLOGY –
UPNP DEVICE ARCHITECTURE –
Part 18-11: Remote Access Device Control Protocol –
Remote Access Discovery Agent Service
FOREWORD
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International Standard ISO/IEC 29341-18-11 was prepared by UPnP Forum Steering
committee , was adopted, under the fast track procedure, by subcommittee 25:
Interconnection of information technology equipment, of ISO/IEC joint technical committee 1:
Information technology.
The list of all currently available parts of the ISO/IEC 29341 series, under the general title
Information technology – UPnP device architecture, can be found on the IEC web site.
This International Standard has been approved by vote of the member bodies, and the voting
results may be obtained from the address given on the second title page.

—————————
rd
UPnP Forum Steering committee, UPnP Forum, 3855 SW 153 Drive, Beaverton, Oregon 97006 USA. See also
“Introduction”.
29341-18-11 © ISO/IEC:2011(E)
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 publication using a colour printer.

29341-18-11 XXX: © IEC:2010 © ISO/IEC:2011(E) 3
1 Overview and Scope
This service definition is compliant with the UPnP Device Architecture version 1.0. It defines
a service type referred to herein as RADAConfig service. This service type enables
configuration of the in-band synchronization mechanism between Remote Access Clients and
Remote Access Server.
1.1 Introduction
A Remote Access Discovery Agent aggregates information about UPnP devices and services
from two primary sources, depending if the devices are located in the local network or they
are located in a remote device. For aggregating the devices and services available in the
local network, the Remote Access Discovery Agent is constantly monitoring the SSDP traffic,
which enables the RADA to have an up-to-date image of the UPnP network. The RADA finds
information about remote UPnP devices and services by synchronizing with remote RADAs.

Figure 1-1 — SSDP Aggregation.
The main purpose in maintaining this aggregate view of available devices, is to alleviate the
timing dependencies inherent in the UPnP Discovery mechanism. When a UPnP Control
Point issues a search request, the request packet contains a parameter that specifies the
maximum number of seconds a device can wait before sending the response. In remote
scenarios, it is possible that this value will be exceeded with normal network traffic delay.
This aggregate view also serves to minimize the amount of SSDP traffic that needs to flow
across the remote transport, as some remote scenarios may be cost-sensitive in regards to
the amount of data that is transferred, since SSDP is often described as a “chatty” protocol.
The aggregate view could be used to restrict the visibility of local UPnP devices and services
from remote devices and of UPnP devices and services hosted by remote devices to your
local network.
This service does not address the actual transport protocol used to facilitate Remote Access.
The RADAConfig service is a UPnP service that provides control points with the following
functionality:
• Customize which local devices are visible in remote networks
• Customize which remote devices are visible in the local network
...