1、 International Telecommunication Union ITU-T G.8052/Y.1346TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (08/2013) SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS Packet over Transport aspects Ethernet over Transport aspects SERIES Y: GLOBAL INFORMATION INFRASTRUCTURE, INTERN
2、ET PROTOCOL ASPECTS AND NEXT-GENERATION NETWORKS Internet protocol aspects Transport Protocol-neutral management information model for the Ethernet transport capable network element Recommendation ITU-T G.8052/Y.1346 ITU-T G-SERIES RECOMMENDATIONS TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND
3、NETWORKS INTERNATIONAL TELEPHONE CONNECTIONS AND CIRCUITS G.100G.199 GENERAL CHARACTERISTICS COMMON TO ALL ANALOGUE CARRIER-TRANSMISSION SYSTEMS G.200G.299 INDIVIDUAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE SYSTEMS ON METALLIC LINES G.300G.399 GENERAL CHARACTERISTICS OF INTERNATIONAL CARR
4、IER TELEPHONE SYSTEMS ON RADIO-RELAY OR SATELLITE LINKS AND INTERCONNECTION WITH METALLIC LINES G.400G.449 COORDINATION OF RADIOTELEPHONY AND LINE TELEPHONY G.450G.499 TRANSMISSION MEDIA AND OPTICAL SYSTEMS CHARACTERISTICS G.600G.699 DIGITAL TERMINAL EQUIPMENTS G.700G.799 DIGITAL NETWORKS G.800G.899
5、 DIGITAL SECTIONS AND DIGITAL LINE SYSTEM G.900G.999 MULTIMEDIA QUALITY OF SERVICE AND PERFORMANCE GENERIC AND USER-RELATED ASPECTS G.1000G.1999 TRANSMISSION MEDIA CHARACTERISTICS G.6000G.6999 DATA OVER TRANSPORT GENERIC ASPECTS G.7000G.7999 PACKET OVER TRANSPORT ASPECTS G.8000G.8999 Ethernet over T
6、ransport aspects G.8000G.8099MPLS over Transport aspects G.8100G.8199 Quality and availability targets G.8200G.8299 Service Management G.8600G.8699 ACCESS NETWORKS G.9000G.9999 For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-T G.8052/Y.1346 (08/2013) i Recommendation
7、 ITU-T G.8052/Y.1346 Protocol-neutral management information model for the Ethernet transport capable network element Summary Recommendation ITU-T G.8052/Y.1346 contains the protocol-neutral unified modelling language (UML) model for Ethernet transport capable network element management. This Recomm
8、endation includes an electronic attachment containing the UML model file in the HTML format. History Edition Recommendation Approval Study Group 1.0 ITU-T G.8052/Y.1346 2013-08-29 15 ii Rec. ITU-T G.8052/Y.1346 (08/2013) FOREWORD The International Telecommunication Union (ITU) is the United Nations
9、specialized agency in the field of telecommunications, information and communication technologies (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 t
10、hem with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication 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
11、-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas 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 use
12、d for conciseness to indicate both a telecommunication administration and a recognized operating 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
13、 Recommendation is achieved when all of these mandatory provisions are met. The words “shall“ 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
14、any party. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice 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 Pro
15、perty Rights, whether asserted by ITU members or others outside of the Recommendation development 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, i
16、mplementers are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2014 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior wr
17、itten permission of ITU. Rec. ITU-T G.8052/Y.1346 (08/2013) iii Table of Contents Page 1 Scope 1 2 References. 2 3 Definitions 4 3.1 Terms defined elsewhere 4 3.2 Terms defined in this Recommendation . 4 4 Abbreviations and acronyms 4 5 Conventions 7 5.1 Conventions defined elsewhere 7 5.2 Conventio
18、ns defined in this Recommendation . 10 6 Overview of the model . 11 6.1 ETH sub-layer 13 6.2 Basic configuration structure 16 6.3 Location (topology) of OAM functions . 19 6.4 MI Groupings and mapping 23 7 Modelling of Ethernet functions . 38 7.1 OAM compound functions . 38 7.2 TCS function 56 7.3 P
19、erformance monitoring . 57 7.4 Ethernet multiplexing . 59 7.5 Connection function . 60 7.6 LAG management modelling . 67 7.7 PhysicalSubsystem modelling 69 8 UML model file 70 Appendix I UML modelling guidelines 72 I.1 UML artefact naming conventions . 72 I.2 Modelling conventions . 74 I.3 Model art
20、efact properties 76 Appendix II Mapping of ITU-T G.8021 atomic functions to ITU-T G.8052 model artefacts . 89 Appendix III UML Model Data Dictionary 90 III.1 Object classes . 90 III.2 UML data dictionary pacs . 242 III.3 Data types . 252 III.4 Enumerations 313 III.5 Primitives 326 Bibliography. 328
21、Electronic attachment: contains the UML model file in the HTML format. iv Rec. ITU-T G.8052/Y.1346 (08/2013) Introduction This Recommendation contains the object classes for Ethernet transport network element management. It includes the termination points (TPs), maintenance entity group (MEG) end po
22、int (MEP), MEG intermediate point (MIP), traffic conditioning and shaping (TCS), loss measurement (LM), delay measurement (DM), and the general performance monitoring (PM), current data (CD) and history data (HD). The TP, MEP, MIP, LM, DM, and TCS object classes support the configuration and fault m
23、anagement functions as specified in ITU-T G.8051. The Ethernet TPs are modelled as subclasses of the generic trail and connection termination points defined in ITU-T M.3100. The Ethernet general PM CD and HD object classes are modelled as subclasses of the generic current data and history data defin
24、ed in ITU-T Q.822. The Ethernet general CD and HD object classes support only the quality of service (QoS) directly related PM parameters, i.e., severely errored second (SES) and unavailable second (UAS), for service level agreement (SLA) verification. The additional PM object classes for supporting
25、 loss measurement (LM) and delay measurement (DM) monitoring uses the general CD and HD object classes as superclasses. The object model defined in this Recommendation is protocol-neutral with respect to management protocols. The model could be used as the base for further defining the information m
26、odel for any specific management protocol. The model in this Recommendation has been specified using the “Rational Software Architect“ (RSA) tool from IBM. This tool provides an export in HTML format to allow browsing through the model without installing the RSA tool. The HTML version is contained i
27、n clause 8. Rec. ITU-T G.8052/Y.1346 (08/2013) 1 Recommendation ITU-T G.8052/Y.1346 Protocol-neutral management information model for the Ethernet transport capable network element 1 Scope This Recommendation1provides a management-protocol-neutral information model for managing network elements in t
28、he Ethernet transport network as defined in ITU-T G.8010. It identifies the telecommunications management network (TMN) managed entities required for the management of Ethernet transport network elements. These entities are relevant to information exchanged across standardized interfaces defined in
29、the ITU-T M.3010 TMN architecture. The management-protocol-neutral information model should be used as the base for defining management-protocol-specific information models, for example, the XML (web service or Netconf/Yang) information model, common object request broker architecture (CORBA) interf
30、ace definition language (IDL) model and simple network management protocol (SNMP) management information base (MIB). The specific mapping of the management-protocol-neutral model into management-protocol-specific model is the decision of the management-protocol-specific solution design. For example,
31、 an object class defined in this Recommendation may be mapped into multiple tables in an SNMP MIB. Protocol-specific solutions and their mapping from the protocol-neutral model will be described in other Recommendations and is out of the scope of this Recommendation. This Recommendation applies to E
32、thernet transport network elements and those systems in the TMN that manage such network elements. Functional capabilities of Ethernet transport equipment are defined in ITU-T G.8021, and requirements of the management of Ethernet transport equipment are provided in ITU-T G.7710 and ITU-T G.8051. Th
33、e information model specified in this Recommendation applies to the element management system network element (EMS-NE) interface, as shown in Figure 1-1, specifically for managing the Ethernet functional capabilities of the network element. G.8052-Y.1346(13)_F1-1NMSEMSNEServerServerLCTITU-T G.8052in
34、terfaceInterfaceGUIGUIClientClientFigure 1-1 Scope of ITU-T G.8052 interface _ 1This Recommendation includes an electronic attachment containing the UML model file in the HTML format. 2 Rec. ITU-T G.8052/Y.1346 (08/2013) There are several different perspectives from which management information may
35、be defined for management purposes. The network element viewpoint is concerned with the information that is required to manage a network element. This refers to information required to manage the network element function and the physical aspects of the network element. This Recommendation addresses
36、only the network element view of Ethernet transport network management. The management-protocol-neutral information model specified in this Recommendation consists of a set of transport-technology-specific managed object classes, i.e., Ethernet-specific managed object classes. These Ethernet-specifi
37、c managed object classes are inherited from the generic managed object classes defined in other Recommendations such as ITU-T M.3160, including managed element, termination point and its subclasses, subnetwork and subnetwork connection2. Because of object class inheritance, the Ethernet management i
38、nformation model also inherits generic object management capabilities, such as object creation/deletion, notification of object creation/deletion, attribute value retrieval/modification, notification of attribute/state value change, scoped and filtered retrieval of object instances, and abortion of
39、outstanding operations. The description of these generic object management capabilities is provided in other ITU-T Recommendations, such as the ITU-T M.3700 series of Recommendations, and therefore it is outside the scope of this Recommendation. The object classes defined in this Recommendation cove
40、r the areas of fault management, configuration management and performance management. 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 editions
41、 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 IT
42、U-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 G.806 Recommendation ITU-T G.806 (2012), Characteristics of transport equipment Description methodology and generic fu
43、nctionality. ITU-T G.7710 Recommendation ITU-T G.7710/Y.1701 (2012), Common equipment management function requirements. ITU-T G.8001 Recommendation ITU-T G.8001/Y.1354 (2013), Terms and definitions for Ethernet frames over transport. ITU-T G.8010 Recommendation ITU-T G.8010/Y.1306 (2004), Architectu
44、re of Ethernet layer networks. ITU-T G.8013 Recommendation ITU-T G.8013/Y.1731 (2011), OAM functions and mechanisms for Ethernet based networks. ITU-T G.8021 Recommendation ITU-T G.8021/Y.1341 (2012), Characteristics of Ethernet transport network equipment functional blocks. ITU-T G.8021.1 Recommend
45、ation ITU-T G.8021.1/Y.1341.1 (2012), Types and characteristics of Ethernet transport network equipment. ITU-T G.8031 Recommendation ITU-T G.8031/Y.1342 (2011), Ethernet linear protection switching. _ 2The linkage of the Ethernet-specific object classes to the generic object classes is specified in
46、details in Appendix I of this Recommendation. Rec. ITU-T G.8052/Y.1346 (08/2013) 3 ITU-T G.8032 Recommendation ITU-T G.8032/Y.1344 (2012), Ethernet ring protection switching. ITU-T G.8051 Recommendation ITU-T G.8051/Y.1345 (2013), Management aspects of the Ethernet Transport (ET) capable network ele
47、ment. ITU-T M.3100 Recommendation ITU-T M.3100 (2005), Generic network information model. ITU-T M.3160 Recommendation ITU-T M.3160 (2008), Generic, protocol-neutral management information model. ITU-T Q.822 Recommendation ITU-T Q.822 (1994), Stage 1, stage 2 and stage 3 Description for the Q3 interf
48、ace Performance management. IEEE 802.1AX IEEE 802.1AX-2008 IEEE Standard for Local and metropolitan area networks Link Aggregation. IEEE 802.1Q IEEE 802.1Q-2011 IEEE Standard for Local and metropolitan area networks Media Access Control (MAC) Bridges and Virtual Bridged Local Area Networks. IEEE 802
49、.3 IEEE 802.3 (2008), IEEE Standard for Information technology Telecommunications and information exchange between systems Local and metropolitan area networks Specific requirements Part 3: Carrier sense multiple access with Collision Detection (CSMA/CD) Access Method and Physical Layer Specifications. G.8052-Y.1346(13)_F2-1Terminology ITU-T G.8001/Y.1354: Terms and definitions for Ethernet frames over transportITU-T G.8010/Y.130
