1、INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMM U N CATION STANDARDIZATION SECTOR OF ITU X.281 (06/99) SERIES X: DATA NETWORKS AND OPEN SYSTEM COM MU NI CAT I ON S Open Systems Interconnection - Layer Managed Objects Information technology - Elements of management information related to the OS1
2、 Physical Layer TU-T ReCQmmendatiQtI X.281 (Previously CCITT Recommendation) ITU-T X-SERIES RECOMMENDATIONS DATA NETWORKS AND OPEN SYSTEM COMMUNICATIONS UBLIC DATA NETWORKS Services and facilities Interfaces Transmission, signalling and switching Network aspects Maintenance Administrative arrangemen
3、ts 3PEN SYSTEMS INTERCONNECTION Model and notation Service definitions Connection-mode protocol specifications Connectionless-mode protocol specifications PICS proformas Protocol Identification x.1-x.19 X.20-X.49 x.50-X.89 X.90-X.149 X.150-X.179 x. 1 80-x. 199 X.200-X.209 X.2 1 0-X.2 19 X.220-X.229
4、X.230-X.239 X.240-X.259 X.260-X.269 Securitv Protocols X.27-X.279 Conformance testing General Satellite data transmission systems MESSAGE HANDLING SYSTEMS DIRECTORY OS1 NETWORKING AND SYSTEM ASPECTS INTERWORKING BETWEEN NETWORKS Networking Efficiency Quality of service Naming, Addressing and Registr
5、ation Abstract Syntax Notation One (ASN. 1) Systems Management framework and architecture Management Communication Service and Protocol Structure of Management Information Management functions and ODMA functions OS1 MANAGEMENT SECURITY OS1 APPLICATIONS Commitment, Concurrency and Recovery Transactio
6、n processing Remote operations OPEN DISTRIBUTED PROCESSING X.290-X.299 X.300-X.349 X.350-X.399 X.400-X.499 X.500-X.599 X.600-X. 629 X.630-X.639 X. 640-X. 649 X.650-X.679 X.680-X.699 X.700-X.709 X.710-X.719 X.720-X.729 x.730-x.799 X.800-X.849 X. 850-X. 859 X.860-X.879 X.880-X.899 x.900-x.999 For furt
7、her details, please refer to ITU-T List of Recommendations. STDmITU-T RECMN X-ZBL-ENGL 1977 I 4Bb2591 Obb4309 385 E INTERNATIONAL STANDARD 13642 ITU-T RECOMMENDATION X.281 INFORMATION TECHNOLOGY - ELEMENTS OF MANAGEMENT INFORMATION RELATED TO THE QSI PHYSICAL LAYER Summary This revised Recommendatio
8、n I International Standard provides the specificaiton of management information related to the Physical Layer. This includes the managed objects class definition of Physical Layer managed objects, the relationship of the managed objects and attributes to both the operation of the layer and to other
9、objects and attributes of the layer, and the allowable actions on the attributes of Physical Layer managed objects. Source The ITU-T Recommendation X.281 was approved on the 18th of June 1999. The identical text is also published as ISO/IEC International Standard 13642. ITU-T Rec. X.281(1999 E) 1 -
10、FOWWORD ITU (International Telecommunication Union) is the United Nations Specialized Agency in the field of telecommuni- cations. The ITU Telecommunication Standardization Sector (IT-T) is a permanent organ of the ITU. The ITU-T is responsible for studying technical, operating and tariff questions
11、and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Conference (WTSC), which meets every four years, establishes the topics for study by the ITU-T Study Groups which, in their turn, produce Recommendati
12、ons on these topics. The approval of Recommendations by the Members of the ITU-T is covered by the procedure laid down in WTSC Resolution No. 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with IS0 and IEC. N
13、OTE In this Recommendation the term recognized operating agency (ROA) includes any individual, company, corporation or governmental organization that operates a public correspondence service. The terms Administration, ROA and public correspondence are defined in the Constitution of the JTU (Geneva,
14、1992). INTELLECTUAL PROPERTY RIGHTS The ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. The ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual
15、 Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. AS of the date of approval of this Recommendation, the ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. Ho
16、wever, implementors are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database. O ITU 1999 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic OK mechanical, i
17、ncluding photocopying and microfilm, without permission in writing from the ITU. 11 ITU-T Rec. X.281(1999 E) - - - STD-ITU-T RECMN X.2BL-ENGL L999 4662593 06643LI, T33 I CONTENTS Page 1 Scope 1 2 Normative references 1 2.1 Identical Recommendations I International Standards . 1 2.2 Paired Recommenda
18、tions I International Standards equivalent in technical content . 2 3 Definitions 2 3.1 Basic Reference Model definitions . 2 3.2 Management framework definitions 2 3.3 Systems management overview definitions 3 3.4 Common management information service definitions . 3 3.5 Management information mode
19、l definitions . 3 3.6 GDMO definitions . 3 4 Symbols and abbreviations . 3 5 Elements of Physical Layer Management Information. 5.1 Managed Object Hierarchy . Common Physical Layer GDMO definitions 5.2 5.3 5.4 5.5 5.6 Data-circuit Managed Object 5.7 Physical Connection Managed Object . 6 ASN.1 Modul
20、e 6.1 Object identifier definitions . 6.2 Other definitions The Physical Layer Subsystem Managed Object Physical Entity Managed Object . Physical Service Access Point Managed Object . 4 4 5 6 7 7 a 11 12 12 12 7 Conformance 13 13 14 15 17 7.1 Conformance requirements to this Recommendation I Interna
21、tional Standard . Annex A - Allocation of Object Identifiers . Annex B - Shorthand description of Managed Objects . Annex C -Example of the use of relationship attributes ITU-T Rec. X.281(1999 E) . 111 INTERNATIONAL STANDARD ITU-T RECOMMENDATION INFORMATION TECHNOLOGY - ELEMENTS OF MANAGEMENT INFORM
22、ATION RELATED TO THE OS1 PHYSICAL LAYER 1 Scope This Recommendation I International Standard provides the specification of management information within an Open System related to those operations of the OS1 Physical Layer specified by the specifications in this Recommendation I International Standar
23、d. Specifics on how Physical Layer management is accomplished is beyond the scope of this Recommendation I International Standard. Physical Layer management is defined by specifying: - the managed object class definition of Physical Layer Managed Objects following guidelines put forth by the Structu
24、re of Management Information (see ITU-T Recs. X.720 I ISOIEC 10165-1 to X.723 I the relationship of the Managed Objects and attributes to both the operation of the layer and to other objects and attributes of the layer; and the action type operations on the attributes of Physical Layer Managed Objec
25、ts that are available to OS1 Systems Management. ISOIEC 10165-5; - - 2 Normative references The following Recommendations and International Standards contain provisions which, through reference in this text, constitute provisions of this Recommendation I International Standard. At the time of public
26、ation, the editions indicated were valid. All Recommendations and Standards are subject to revision, and parties to agreements based on this Recommendation I International Standard are encouraged to investigate the possibility of applying the most recent edition of the Recommendations and Standards
27、listed below. Members of IEC and IS0 maintain registers of currently valid International standards. The Telecommunication Standardization Bureau of the ITU maintains a list of currently valid ITU-T Recommendations. 2.1 Identical Recommendations I International Standards ITU-T Recommendation X.200 (1
28、994) I ISOAEC 7498-1: 1994, Information technology - Open Systems Interconnection - Basic Reference Model: The Basic Model. ITU-T Recommendation X.211 (1995) I ISO/IEC 10022:1996, Informution technology - Open Systems Interconnection - Physical service definition. ITU-T Recommendation X.701 (1997) I
29、 ISO/IEC 10040:1998, Information technology - Open Systems Interconnection - Systems management overview. ITU-T Recommendation X.710 (1997) I ISOAEC 9595:1998, Information technology - Open Systems Interconnection - Common management information service definition. ITU-T Recommendation X.711 (1997)
30、I ISOOEC 9596-1:1998, Information technology - Open Systems Interconnection - Common management information protocol: Specification. CCITT Recommendation X.720 (1992) I ISOIEC 10165-1:1993, Information technology - Open Systems Interconnection - Structure of management information: Management inform
31、ation model. CCITT Recommendation X.721 (1992) I ISODEC 10165-2: 1992, Information technology - Open Systems Interconnection - Structure of management information: Definition of management information. CCITT Recommendation X.722 (1992) I ISQAEC 10165-4: 1992, Information technology - Open Systems In
32、terconnection - Structure of management information: Guidelines for the definition of managed objects. ITU-T RecX.281(1999 E) 1 ISO/iEC 13642 : 1999 (E) - ITU-T Recommendation X.723 (1993) I ISOIEC 10165-5:1994, Information technology - Open Systems Interconnection - Structure of management informat
33、ion: Generic management information. - CCITT Recommendation X.730 (1992) I ISO/IEC 10164-1 :1993, Information technology - Open Systems Interconnection - Systems management: Object management function. - CCITT Recommendation X.73 1 (1992) I ISOAEC 10164-2:1993, Information technology - Open Systems
34、Interconnection - Systems management: State managementfunction. - CCITT Recommendation X.732 (1992) I ISOIIEC 10164-3:1993, Information technology - Open Systems Interconnection - Systems management: Attributes for representing relationships. - CCITT Recommendation X.733 (1992) I ISO/IEC 10164-4:199
35、2, Information technology - Open Systems Interconnection - Systems management: Alarm reporting function. - CCIIT Recommendation X.734 (1992) I ISOIIEC 10164-51993, Information technology - Open Systems Interconnection - Systems management: Event report management function. - CCITT Recommendation X.7
36、35 (1992) 1 ISOflEC 10164-6: 1993, Information technology - Open Systems Interconnection - Systems management: Log control function. 2.2 Paired Recommendations I International Standards equivalent in technical content - CCITT Recommendation X.208 (1988), Specification of Abstract Syntax Notation One
37、 (ASN.). ISOIEC 8824: 1990, Information technology - Open Systems Interconnection - Specjcation of Abstract Syntax Notation One (ASN.1). - CCITT Recommendation X.700 (1992), Management framework for Open Systems Interconnections (OSI) for CCIirir applications. ISOIEC 7498-4: 1989, Information proces
38、sing systems - Open Systems Interconnection - Basic Reference Model - Part 4: Management framework. 3 Definitions For the purposes of this Recommendation I International Standar, the following definitions apply. 3.1 Basic Reference Model definitions This Recommendation I International Standard is ba
39、sed on the concept in the Basic Reference Model for Open Systems Interconnection and makes use of the following terms defined in ITU-T Rec. X.200 I ISOIEC 7498-1: a) data-circuit; (N)-connection; (N)-entity ; (N)-layer; (N)-protocol; (N)-service-access-point; open system; Physical Layer; systems man
40、agement. 3.2 Management framework definitions This Recommendation I International Standard makes use of the following term defined in CCITT Rec. X.700 I ISOIIEC 7498-4: - managed object. 2 ITU-T Rec. X.281(1999 E) STD.ITU-T RECMN XOEBL-ENGL 1999 I 4862591 Obb43L4 742 = ISO/IEC 13642 : 1999 (E) j) pa
41、rameter; k) relative distinguished name: 1) subclass; 3.3 Systems management overview definitions This Recommendation I International Standard makes use of the following terms defined in CCITT Rec. X.701 I ISOAEC 10040: a) managed object class; b) management information; c) notification; d) (systems
42、 management) operation. 3.4 This Recommendation I International Standard makes use of the following term defined in ITU-T Rec. X.710 I ISOAEC 9595: Common management information service definitions - attributes. 1. 4 Symbols and abbreviations Within the Managed Object definitions and GDMO templates
43、the following abbreviations are used in the standard-name element of a document-identifier when making references to other documents: DMI CCITT Rec. X.721 (1992) I ISOAEC 10165-2:1992 GMI ITU-T Rec. X.723 (1993) I ISO/IEC 10165-5:1994 This Recommendation i International Standard makes use of the fol
44、lowing symbols and abbreviations: DMI Definition of Management Information GDMO MO . Managed Object(s) Ph Physical PhC Physical Connection Guidelines for the Definition of Managed Objects ITU-T Rec. X.281(1999 E) 3 STD-ITU-T RECMN X-ZBL-ENGL 1999 E 4862591 0664315 689 ISO/IEC 13642 : 1999 (E) PHLM P
45、hysical Layer Management PhSAP Physical Service Access Point QOS Quality of Service SAP Service Access Point 5 Elements of Physical Layer Management Information 5.1 Managed Object Hierarchy 5.1.1 Summary of managed objects The following set of common managed objects are defined in this Recommendatio
46、n I International Standard for the OS1 Physical Layer: a) b) c) d) e) The Physical Subsystem Managed Object (see 5.3) The Physical Entity Managed Object (see 5.4) The Physical SAP Managed Object (see 5.5) The Data-circuit Managed Object (see 5.6) The Physical Connection Managed Object (see 5.7) Thes
47、e Managed Objects represent OS1 Managements view of those elements of an Open System which support the OS1 Physical Service subject to OS1 management operations. Other MOS may be defined under Physical Subsystem using these generic specifications. 5.1.2 Containment hierarchy The containment hierarch
48、y is illustrated in Figure 1. These objects are defined in detail in the following subclauses. The physical subsystem MO is subordinate to the system MO and it represents the whole of the physical layer in an open system. Only one instance of the physical subsystem MO exists in an open system. One o
49、r more physical entity MO and physical SAP MO are contained in the physical subsystem MO. The physical entity MO represents the whole of the management aspect of the entity that executes the functions of the physical layer. The plural instances of the physical entity MO can exist in an open system. The data-circuit MO is generic managed object that represents the management aspect of the entity that executes the transmission of bits. The physical connection MO represents the management view of connections established using relaying functions. Ph-
