ITU-T X 782-2012 Guidelines for defining web services for managed objects and management interfaces (Study Group 2)《管理对象和管理接口用定义网络业务的指南 2号研究组》.pdf

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1、 International Telecommunication Union ITU-T X.782TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (05/2012) SERIES X: DATA NETWORKS, OPEN SYSTEM COMMUNICATIONS AND SECURITY OSI management Management functions and ODMA functions Guidelines for defining web services for managed objects and management

2、interfaces Recommendation ITU-T X.782 ITU-T X-SERIES RECOMMENDATIONS DATA NETWORKS, OPEN SYSTEM COMMUNICATIONS AND SECURITY PUBLIC DATA NETWORKS Services and facilities X.1X.19 Interfaces X.20X.49 Transmission, signalling and switching X.50X.89 Network aspects X.90X.149 Maintenance X.150X.179 Admini

3、strative arrangements X.180X.199 OPEN SYSTEMS INTERCONNECTION Model and notation X.200X.209 Service definitions X.210X.219 Connection-mode protocol specifications X.220X.229 Connectionless-mode protocol specifications X.230X.239 PICS proformas X.240X.259 Protocol Identification X.260X.269 Security P

4、rotocols X.270X.279 Layer Managed Objects X.280X.289 Conformance testing X.290X.299 INTERWORKING BETWEEN NETWORKS General X.300X.349 Satellite data transmission systems X.350X.369 IP-based networks X.370X.379 MESSAGE HANDLING SYSTEMS X.400X.499 DIRECTORY X.500X.599 OSI NETWORKING AND SYSTEM ASPECTS

5、Networking X.600X.629 Efficiency X.630X.639 Quality of service X.640X.649 Naming, Addressing and Registration X.650X.679 Abstract Syntax Notation One (ASN.1) X.680X.699 OSI MANAGEMENT Systems management framework and architecture X.700X.709 Management communication service and protocol X.710X.719 St

6、ructure of management information X.720X.729 Management functions and ODMA functions X.730X.799SECURITY X.800X.849 OSI APPLICATIONS Commitment, concurrency and recovery X.850X.859 Transaction processing X.860X.879 Remote operations X.880X.889 Generic applications of ASN.1 X.890X.899 OPEN DISTRIBUTED

7、 PROCESSING X.900X.999 INFORMATION AND NETWORK SECURITY X.1000X.1099 SECURE APPLICATIONS AND SERVICES X.1100X.1199 CYBERSPACE SECURITY X.1200X.1299 SECURE APPLICATIONS AND SERVICES X.1300X.1399 CYBERSECURITY INFORMATION EXCHANGE X.1500X.1599 For further details, please refer to the list of ITU-T Rec

8、ommendations. Rec. ITU-T X.782 (05/2012) i Recommendation ITU-T X.782 Guidelines for defining web services for managed objects and management interfaces Summary Recommendation ITU-T X.782 defines a set of guidelines for managed object modelling and a management interface for web services-based netwo

9、rk management. It composes a framework for web services-based network management interfaces along with Recommendation ITU-T Q.818. It specifies how service-oriented web service interfaces should be defined. It covers the suitable application scenario of web services in network management interfaces,

10、 generic accessing methods of XML-based managed objects, information modelling in web service WSDL and XML schema. Some WSDL definitions and XML schema are provided for defining some basic data types: generic managed object (MO) and generic MO accessing methods. This Recommendation and Recommendatio

11、n ITU-T Q.818 together compose a framework for web services-based network management interfaces with a wide range of applications. History Edition Recommendation Approval Study Group 1.0 ITU-T X.782 2012-05-14 2 Keywords Distributed processing, extensible markup language (XML), managed objects, netw

12、ork management interfaces, web service (WS), web services description language (WSDL), XML schema. ii Rec. ITU-T X.782 (05/2012) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technol

13、ogies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecomm

14、unication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas

15、 of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized opera

16、ting agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure, e.g., interoperability or applicability) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. The words “shall

17、“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the prac

18、tice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation develo

19、pment process. As of the date of approval of this Recommendation, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementers are cautioned that this may not represent the latest information and are therefo

20、re strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2012 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T X.782 (05/2012) iii Table of Contents Page 1 Scope 1 2 R

21、eferences. 1 3 Definitions 2 3.1 Terms defined elsewhere 2 3.2 Terms defined in this Recommendation . 2 4 Abbreviations and acronyms 2 5 Conventions 3 6 Overview of a web services-based management framework . 4 7 Principles for service-oriented WSDL-based interface design . 4 8 Definition of a gener

22、ic managed object using XML schema . 5 8.1 Web-service role in management interfaces . 5 8.2 Definition of managed objects using XML schema . 6 9 Accessing methods for managed objects 9 10 Inheritance of managed objects and interface operations . 11 10.1 Attributes inheritance of managed objects . 1

23、1 10.2 Considerations for the inheritance of interface operation 12 11 Information modelling guidelines for web services-based interfaces 12 11.1 namespace . 12 11.2 complexType 12 11.3 attribute . 12 11.4 request . 12 11.5 response 13 11.6 notification 13 11.7 Name conventions for MOCs, packages, a

24、ttributes and data types . 13 12 Style idioms for XML schema specifications . 14 12.1 Data model using XML schema . 14 12.2 XML schema design considerations . 14 12.3 Recommendations for schema developers . 16 12.4 Guidelines for schema extensions 18 13 Compliance and conformance 18 13.1 Standards d

25、ocument compliance 19 13.2 System conformance 19 13.3 Conformance statement guidelines . 19 Annex A Common WSDL and XML schema definitions 20 A.1 XML schema definitions for common data types and a generic managed object 20 iv Rec. ITU-T X.782 (05/2012) Page A.2 WSDL and XML schema definition for com

26、mon object accessing methods . 28 Appendix I Overview of web service technology and application scenarios in network management interfaces . 34 I.1 Characteristics of web service technology . 34 I.2 Suitable and unsuitable application scenarios of web services in network management 35 Bibliography.

27、37 Rec. ITU-T X.782 (05/2012) 1 Recommendation ITU-T X.782 Guidelines for defining web services for managed objects and management interfaces 1 Scope The network management architecture defined in ITU-T M.3010 introduces the use of multiple management protocols. So far, the GDMO/CMIP and CORBA GIOP/

28、IIOP are possible choices at the application layer. Based on the management interface specification methodology defined in ITU-T M.3020, more technology-based paradigms can be introduced into network management interfaces and web service/XML is now an additional paradigm for network management. This

29、 Recommendation, together with ITU-T Q.818 sets out to define a framework for defining how interfaces supported by management systems and network elements should be modelled using web service/XML schema. It is within the scope of this Recommendation to provide the following guidelines or instruction

30、s: service-oriented WSDL-based interface design approach; suitable and unsuitable application scenarios for web services in network management interfaces; generic accessing methods for managed objects; inheritance of managed objects and interfaces; information modelling guidelines for web services-b

31、ased interfaces; style conventions for web service WSDL and XML schema specifications. 2 References The following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitute provisions of this Recommendation. At the time of publication, the edition

32、s indicated were valid. All Recommendations and other references are subject to revision; users of this Recommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the Recommendations and other references listed below. A list of the currently valid I

33、TU-T Recommendations is regularly published. The reference to a document within this Recommendation does not give it, as a stand-alone document, the status of a Recommendation. ITU-T E.164 Recommendation ITU-T E.164 (2010), The international public telecommunication numbering plan. ITU-T M.3010 Reco

34、mmendation ITU-T M.3010 (2000), Principles for a telecommunications management network. ITU-T M.3020 Recommendation ITU-T M.3020 (2011), Management interface specification methodology. ITU-T M.3701 Recommendation ITU-T M.3701 (2010), Common management services State management Protocol neutral requi

35、rements and analysis. ITU-T Q.818 Recommendation ITU-T Q.818 (2012), Web service-based management services. ITU-T X.701 Recommendation ITU-T X.701 (1997), Information technology Open Systems Interconnection Systems management overview. ITU-T X.703 Recommendation ITU-T X.703 (1997), Information techn

36、ology Open Distributed Management Architecture. 2 Rec. ITU-T X.782 (05/2012) ATIS-I-000002 ATIS Specification ATIS-I-000002 (2011), ATIS XML Schema Development Guidelines. OASIS WSN OASIS Specification (2006), Web Services Base Notification v1.3. OASIS UDDI OASIS Specification (2004), Universal Desc

37、ription, Discovery and Integration (UDDI) v3.0.2. W3C Primer W3C Recommendation (2004), XML Schema Part 0: Primer Second Edition. W3C SOAP W3C Recommendation (2007), SOAP Version 1.2 Part 1: Messaging Framework (Second Edition). W3C WSDL W3C Recommendation (2001), Web Services Description Language (

38、WSDL) 1.1. W3C XML W3C Recommendation (2000), Extensible Markup Language (XML) 1.0 Second Edition. W3C XS-P1 W3C Recommendation (2004), XML Schema Part 1: Structures Second Edition. W3C XS-P2 W3C Recommendation (2004), XML Schema Part 2: Datatypes Second Edition. 3 Definitions 3.1 Terms defined else

39、where This Recommendation uses the following terms defined elsewhere: 3.1.1 agent ITU-T M.3020 3.1.2 managed object class ITU-T X.701 3.1.3 manager ITU-T M.3020 3.1.4 notification ITU-T X.703 3.2 Terms defined in this Recommendation This Recommendation does not define any new terms. 4 Abbreviations

40、and acronyms This Recommendation uses the following abbreviations and acronyms: B2B Business to Business BPEL Business Process Execution Language C2B Customer to Business CMIP Common Management Information Protocol CORBA Common Object Request and Broker Architecture DCOM Distribute Component Object

41、Model DN Distinguished Name DTD Document Type Definition EMS Element Management System GDMO Guidelines for the Definition of Managed Objects Rec. ITU-T X.782 (05/2012) 3 GIOP General Inter-ORB Protocol IDL Interface Definition Language IIOP Internet Inter-ORB Protocol IT Information Technology LAN L

42、ocal Area Network MO Managed Object MOC Managed Object Class MOO Multiple Object Operation NMS Network Management System OOAD Object-Oriented Analysis and Design OS Operating System RDN Relative Distinguished Name SOA Service-Oriented Architecture SOAP Simple Object Access Protocol TMN Telecommunica

43、tions Management Network UDDI Universal Description Discovery and Integration WS Web Services WSDL Web Services Description Language WSN Web Services Notification XML extensible Markup Language XSD XML Schema Definition 5 Conventions A few conventions are followed in this Recommendation to make the

44、reader aware of the purpose of the text. While most of the Recommendation is normative, paragraphs succinctly stating mandatory requirements to be met by a management system (managing and/or managed) are preceded by a boldface “R“ enclosed in parentheses, followed by a short name indicating the subj

45、ect of the requirement, and a number. For example: (R) EXAMPLE-1 An example mandatory requirement. Requirements that may be optionally implemented by a management system are preceded by an “O“ instead of an “R“. For example: (O) EXAMPLE-2 An example optional requirement. The requirement statements a

46、re used to create compliance and conformance profiles. Examples of WSDL and XML are included in this Recommendation and normative WSDL and XML specifying the data types, base classes and other service-oriented modelling constructs of the framework are included in Annex A. The WSDL and XML are writte

47、n in a 10 point courier typeface: 4 Rec. ITU-T X.782 (05/2012) 6 Overview of a web services-based management framework Web services have been widely used in the IT industry. Appendix I provides more information on the features of web services technology. Web services similar to CORBA technology, can

48、 be used in network management interfaces. This Recommendation together with ITU-T Q.818 sets up a framework for defining how interfaces supported by management systems and network elements should be modelled using WSDL and XML schema. The web services-based management framework includes the followi

49、ng aspects. 1) Managed object and interface definition guidelines: principles for the service-oriented WSDL-based interface design; definition of managed objects using XML schema; accessing methods for MOs; inheritance of MOs and interface operations; information modelling guidelines for web services-based interface operations; style idioms for WSDL and XML schema specifications. 2) Web services supporting services for network management: def