1、 I n t e r n a t i o n a l T e l e c o m m u n i c a t i o n U n i o n ITU-T G.8051/Y.1345 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (08/2015) SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS Packet over Transport aspects Ethernet over Transport aspects SERIES Y: GLOBAL I
2、NFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT-GENERATION NETWORKS Internet protocol aspects Transport Management aspects of the Ethernet transport (ET) capable network element Recommendation ITU-T G.8051/Y.1345 ITU-T G-SERIES RECOMMENDATIONS TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SY
3、STEMS AND 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 INTERNAT
4、IONAL CARRIER 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
5、G.800G.899 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 Ether
6、net over Transport aspects G.8000G.8099 MPLS over Transport aspects G.8100G.8199 Synchronization, 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.8051/Y.134
7、5 (08/2015) i Recommendation ITU-T G.8051/Y.1345 Management aspects of the Ethernet transport (ET) capable network element Summary Recommendation ITU-T G.8051/Y.1345 addresses management aspects of the Ethernet transport network element containing transport functions of one or more of the layer netw
8、orks of the Ethernet transport network. The management of the Ethernet layer networks is separable from that of its client layer networks so that the same means of management can be used regardless of the client. The management functions for fault management, configuration management, performance mo
9、nitoring, and security management are specified. The 2009 revision of this Recommendation added the management of additional transport functions that were introduced in the 2009 revision of Recommendation ITU-T G.8021/Y.1341. The 2013 revision of this Recommendation added the management of additiona
10、l functions, including: client signal fail (CSF); proactive loss measurement using loss measurement message (LMM)/loss measurement reply (LMR); proactive delay measurement using delay measurement message (DMM)/delay measurement reply (DMR) and one-way delay measurement (1DM); synthetic loss measurem
11、ent using synthetic loss message (SLM)/synthetic loss reply (SLR) and one-way synthetic loss measurement (1SL) (proactive and on-demand); performance management (PM) requirements on protocol data unit (PDU) generation type, message period, measurement interval, repetition period, start time, stop ti
12、me and session duration; and PM data collection requirements. The 2015 Revision of this Recommendation has updated the management information (MI) signals for the ETHx_FT function in clause 8.5, the MI signals for the ETHx/MCC function in clause 8.6, the one-way synthetic loss measurement (1SL) MI s
13、ignal for the ETHDe_FT_Sk function in clause 8.8, and the on-demand and proactive loss measurement requirements in clause 10.2. History Edition Recommendation Approval Study Group Unique ID* 1.0 ITU-T G.8051/Y.1345 2007-10-22 15 11.1002/1000/9186 2.0 ITU-T G.8051/Y.1345 2009-11-13 15 11.1002/1000/10
14、430 2.1 ITU-T G.8051/Y.1345 (2009) Amd. 1 2011-06-06 15 11.1002/1000/11139 3.0 ITU-T G.8051/Y.1345 2013-08-29 15 11.1002/1000/12024 3.1 ITU-T G.8051/Y.1345 (2013) Amd. 1 2014-05-14 15 11.1002/1000/12186 4.0 ITU-T G.8051/Y.1345 2015-08-13 15 11.1002/1000/12549 _ * To access the Recommendation, type t
15、he URL http:/handle.itu.int/ in the address field of your web browser, followed by the Recommendations unique ID. For example, http:/handle.itu.int/11.1002/1000/11830-en. ii Rec. ITU-T G.8051/Y.1345 (08/2015) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized
16、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 them with a v
17、iew 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-T Recommend
18、ations 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 used for concis
19、eness 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 Recommendat
20、ion 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 any party. I
21、NTELLECTUAL PROPERTY RIGHTSITU 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 Property Rights,
22、 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, implementers a
23、re 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 2015 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permiss
24、ion of ITU. Rec. ITU-T G.8051/Y.1345 (08/2015) iii Table of Contents Page 1 Scope . 1 2 References . 2 3 Definitions 3 3.1 Terms defined elsewhere 3 3.2 Terms defined in this Recommendation . 4 4 Abbreviations and acronyms 4 5 Conventions 7 6 ET management architecture 7 6.1 ET network management ar
25、chitecture 7 6.2 ET equipment management function architecture 10 6.3 Information flows over management points . 11 7 Fault (maintenance) management . 12 7.1 Fault management applications 12 7.2 Fault management functions . 14 8 Configuration management 22 8.1 Hardware 22 8.2 Software 22 8.3 Protect
26、ion switching . 22 8.4 Trail termination . 22 8.5 Flow termination 23 8.6 Adaptation 28 8.7 Connection 38 8.8 Diagnostic . 40 8.9 Traffic conditioning and shaping 42 8.10 XXX_Reported . 43 8.11 Alarm severity 43 8.12 Alarm reporting control 43 8.13 PM thresholds . 43 8.14 TCM activations . 43 8.15 D
27、ate and time 44 9 Accounting management 44 10 Performance management 44 10.1 Performance management applications 45 10.2 Performance monitoring functions . 45 11 Security management 54 Appendix I MI signals/parameters for PM tools in ITU-T G.8021 55 Rec. ITU-T G.8051/Y.1345 (08/2015) 1 Recommendatio
28、n ITU-T G.8051/Y.1345 Management aspects of the Ethernet transport (ET) capable network element 1 Scope This Recommendation addresses management aspects of the Ethernet transport (ET) capable network element containing transport functions of one or more of the layer networks of the Ethernet transpor
29、t network. The management of the Ethernet layer networks is separable from that of its client layer networks so that the same means of management can be used regardless of the client. In this version of this Recommendation, fault management, configuration management, performance management (PM), and
30、 security management are specified. Accounting management is for further study. Furthermore, only the management information (MI) of the following ET equipment functions is addressed: Ethernet MAC layer (ETH) flow forwarding, flow termination, connection, diagnostic, and traffic conditioning/shaping
31、 functions; ETH server to ETH client adaptation functions (including ETH/ETH-m and ETHG/ETH); ETH link aggregation functions; Ethernet PHY layer (ETYn) trail termination functions; ETYn server to ETH client adaptation functions; GFP-F-based mapping of Ethernet into SDH; GFP-T-based mapping of Gigabi
32、t Ethernet code words into VC-4-Xv; PDH server to ETH client adaptation functions; and OTN server to ETH client adaptation functions. The management of the adaptation of other clients and servers with respect to ET is for further study. This Recommendation also describes the management network organ
33、izational model for communication between an element management layer (EML) operations system and the ET equipment management function (EMF) within an ET network element. The architecture described in this Recommendation for the management of Ethernet transport networks is based upon the following c
34、onsiderations: the management view of network element functional elements should be uniform whether these elements form part of an inter-domain interface or part of an intra-domain interface. The properties necessary to form such a uniform management view are to be included in this Recommendation; E
35、thernet layer network entities (ELNEs) refer to trail termination, adaptation and connection functions as described in ITU-T G.8010; a network element may only contain Ethernet layer network entities; a network element may contain both ELNEs and client layer network entities (CLNEs); client layer en
36、tities are managed as part of their own logical domain; CLNEs and ELNEs may or may not share a common message communication function (MCF) and management application function (MAF) depending on application; and CLNEs and ELNEs may or may not share the same agent; server layer network entities (SLNEs
37、) and ELNEs may or may not share the same agent. 2 Rec. ITU-T G.8051/Y.1345 (08/2015) 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
38、 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
39、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.707 Recommendation ITU-T G.707/Y.1322 (2007), Network node interface for the synchronous digital hierarchy (SDH). IT
40、U-T G.709 Recommendation ITU-T G.709/Y.1331 (2012), Interfaces for the optical transport network. ITU-T G.805 Recommendation ITU-T G.805 (2000), Generic functional architecture of transport networks. ITU-T G.806 Recommendation ITU-T G.806 (2012), Characteristics of transport equipment Description me
41、thodology and generic functionality. ITU-T G.832 Recommendation ITU-T G.832 (1998), Transport of SDH elements on PDH networks Frame and multiplexing structures. ITU-T G.7041 Recommendation ITU-T G.7041/Y.1303 (2011), Generic framing procedure. ITU-T G.7710 Recommendation ITU-T G.7710/Y.1701 (2012),
42、Common equipment management function requirements. ITU-T G.7712 Recommendation ITU-T G.7712/Y.1703 (2010), Architecture and specification of data communication network. ITU-T G.8001 Recommendation ITU-T G.8001/Y.1354 (2013), Terms and definitions for Ethernet frames over transport. ITU-T G.8010 Reco
43、mmendation ITU-T G.8010/Y.1306 (2004), Architecture of Ethernet layer networks. ITU-T G.8012 Recommendation ITU-T G.8012/Y.1308 (2004), Ethernet UNI and Ethernet NNI. ITU-T G.8013 Recommendation ITU-T G.8013/Y.1731 (2015), OAM functions and mechanisms for Ethernet- based networks. ITU-T G.8021 Recom
44、mendation ITU-T G.8021/Y.1341 (2015), Characteristics of Ethernet transport network equipment functional blocks. ITU-T M.20 Recommendation ITU-T M.20 (1992), Maintenance philosophy for telecommunication networks. ITU-T M.3010 Recommendation ITU-T M.3010 (2000), Principles for a telecommunications ma
45、nagement network. ITU-T M.3013 Recommendation ITU-T M.3013 (2000), Considerations for a telecommunications management network. ITU-T M.3100 Recommendation ITU-T M.3100 (2005), Generic network information model. ITU-T X.700 Recommendation ITU-T X.700 (1992), Management framework for Open Systems Inte
46、rconnection (OSI) for CCITT applications. ITU-T X.701 Recommendation ITU-T X.701 (1997) | ISO/IEC 10040:1998, Information technology Open Systems Interconnection Systems management overview. Rec. ITU-T G.8051/Y.1345 (08/2015) 3 ITU-T X.733 Recommendation ITU-T X.733 (1992) | ISO/IEC 10164-4:1992, In
47、formation technology Open Systems Interconnection Systems Management: Alarm reporting function. ITU-T X.735 Recommendation ITU-T X.735 (1992) | ISO/IEC 10164-6:1993, Information technology Open Systems Interconnection Systems Management: Log control function. ITU-T Y.1563 Recommendation ITU-T Y.1563
48、 (2009), Ethernet frame transfer and availability performance. IEEE 802.3 IEEE 802.3 (2002), IEEE Standard for Information technology Local and metropolitan area networks Specific requirements Part 3: Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Access Method and Physical Layer S
49、pecifications. 3 Definitions 3.1 Terms defined elsewhere This Recommendation uses the following terms defined elsewhere: 3.1.1 Terms defined in ITU-T G.806: Atomic function (AF); Management point (MP). 3.1.2 Terms defined in ITU-T G.7710: Local craft terminal; Management application function (MAF). 3.1.3 Term defined in ITU-T G.7712: Data communication network (DCN). 3.1.4 Terms defined in ITU-T G
