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.8151/Y.1374 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (01/2015) SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS Packet over Transport aspects MPLS over Transport aspects SERIES Y: GLOBAL INFOR
2、MATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT-GENERATION NETWORKS Internet protocol aspects Transport Management aspects of the MPLS-TP network element Recommendation ITU-T G.8151/Y.1374 ITU-T G-SERIES RECOMMENDATIONS TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS INTERNATI
3、ONAL 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 CARRIER TELEPHONE SYST
4、EMS 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 DIGITAL SECTIONS
5、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 Transport aspects G
6、.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.8151/Y.1374 (01/2015) i Recommendation
7、 ITU-T G.8151/Y.1374 Management aspects of the MPLS-TP network element Summary Recommendation ITU-T G.8151/Y.1374 addresses management aspects of the multi-protocol label switching (MPLS) transport profile (MPLS-TP) capable network element containing transport functions of one or more of the layer n
8、etworks of the MPLS-TP network. The management of the MPLS-TP 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 monitoring
9、and security management are specified. The 2012 edition of this Recommendation aligns with the MPLS-TP architecture and requirements jointly developed by IETF and ITU-T and provides the specification for managing MPLS-TP network elements (NEs) that support the operation, administration and maintenan
10、ce (OAM) protocol neutral equipment functionality as defined in Recommendation ITU-T G.8121/Y.1381. History Edition Recommendation Approval Study Group Unique ID* 1.0 ITU-T G.8151/Y.1374 2007-10-22 15 11.1002/1000/9188 2.0 ITU-T G.8151/Y.1374 2012-07-22 15 11.1002/1000/11518 2.1 ITU-T G.8151/Y.1374
11、(2012) Amd. 1 2012-10-29 15 11.1002/1000/11811 2.2 ITU-T G.8151/Y.1374 (2012) Amd. 2 2013-10-07 15 11.1002/1000/12017 3.0 ITU-T G.8151/Y.1374 2015-01-13 15 11.1002/1000/12386 _ * To access the Recommendation, type the URL http:/handle.itu.int/ in the address field of your web browser, followed by th
12、e Recommendations unique ID. For example, http:/handle.itu.int/11.1002/1000/11830-en ii Rec. ITU-T G.8151/Y.1374 (01/2015) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technologies
13、(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 Telecommunicat
14、ion 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 of in
15、formation 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 operating a
16、gency. 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“ or s
17、ome 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 RIGHTSITU draws attention to the possibility that the practice or
18、 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 development p
19、rocess. 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 therefore stro
20、ngly 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 permission of ITU. Rec. ITU-T G.8151/Y.1374 (01/2015) iii Table of Contents Page 1 Scope . 1
21、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 MPLS-TP management architecture. 7 6.1 MPLS-TP network management architecture 7 6.2 MPLS-TP equipment management architecture 10 6.3 Informati
22、on 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 20 8.1 Hardware 20 8.2 Software 20 8.3 Protection switching . 20 8.4 Trail termination . 20 8.5 Adaptation 24 8.6 Diagnostic
23、. 37 8.7 Connection 42 8.8 DEG thresholds 43 8.9 XXX_Reported . 43 8.10 Alarm severity 43 8.11 Alarm reporting control 43 8.12 PM thresholds . 43 8.13 TCM activation . 43 8.14 Date and time 43 9 Accounting management 44 10 Performance management 44 10.1 Performance management applications 44 10.2 Pe
24、rformance monitoring functions . 44 11 Security management 48 Bibliography. 49 Rec. ITU-T G.8151/Y.1374 (01/2015) 1 Recommendation ITU-T G.8151/Y.1374 Management aspects of the MPLS-TP network element 1 Scope This Recommendation addresses management aspects of the multi-protocol label switching (MPL
25、S) transport profile (MPLS-TP) capable network element containing transport functions of one or more of the layer networks of the MPLS-TP network. The management of the MPLS-TP layer networks is separable from that of its client layer networks so that the same means of management can be used regardl
26、ess of the client. In this edition of the Recommendation, fault management, configuration management, performance management and security management are specified. Accounting management is for further study. The generic requirements for managing transport network elements (NEs) are specified in ITU-
27、T G.7710 and the requirements for the management of equipment used in networks supporting an MPLS-TP are specified in b-IETF RFC 5951. This Recommendation specifies the requirements for managing the following MPLS-TP specific equipment functional blocks, which are defined in ITU-T G.8121: MPLS-TP la
28、yer connection function; MPLS-TP layer trail termination functions; MPLS-TP server to MPLS-TP client adaptation functions; MPLS-TP server to Ethernet client adaptation functions; Synchronous digital hierarchy (SDH) server to MPLS-TP client adaptation functions; Plesiochronous digital hierarchy (PDH)
29、 server to MPLS-TP client adaptation functions; Optical transport network (OTN) sever to MPLS-TP client adaptation functions; Ethernet MAC layer (ETH) sever to MPLS-TP client adaptation functions. The management of the adaptation of other clients and servers with respect to MPLS-TP is for further st
30、udy. This Recommendation also describes the management network organizational model for communication between an element management layer (EML) operations system and the MPLS-TP equipment management function within an MPLS-TP network element. The architecture described in this Recommendation for the
31、 management of MPLS-TP transport networks is based on the following considerations: The management view of network element functional elements should be uniform whether those elements form part of an inter-domain interface or part of an intra-domain interface. Those properties necessary to form such
32、 a uniform management view are to be included in this Recommendation; MPLS-TP layer network entities (MTLNEs) refer to trail termination, adaptation and connection functions as described in ITU-T G.8110.1; A network element may only contain MPLS-TP layer network entities; A network element may conta
33、in both MTLNEs and client layer network entities (CLNEs); Client layer entities are managed as part of their own logical domain (e.g., Ethernet management network); CLNEs and MTLNEs may or may not share a common message communication function (MCF) and management application function (MAF) depending
34、 on the application; CLNE and MTLNE may or may not share the same agent; 2 Rec. ITU-T G.8151/Y.1374 (01/2015) Server layer network entities (SLNEs) and MTLNEs may or may not share the same agent. This Recommendation provides a representation of the MPLS-TP technology using the methodologies that hav
35、e been used for other transport technologies (e.g., SDH, OTN and Ethernet). 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 indicated
36、 were valid. All Recommendations and other references are subject to revision; all 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 ITU-T Re
37、commendations 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). ITU-T G.
38、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 methodol
39、ogy and generic functionality. ITU-T G.7041 Recommendation ITU-T G.7041/Y.1303 (2011), Generic framing procedure. ITU-T G.7044 Recommendation ITU-T G.7044/Y.1347 (2011), Hitless adjustment of ODUflex(GFP). ITU-T G.7710 Recommendation ITU-T G.7710/Y.1701 (2012), Common equipment management function r
40、equirements. ITU-T G.7712 Recommendation ITU-T G.7712/Y.1703 (2010), Architecture and specification of data communication network. ITU-T G.8013 Recommendation ITU-T G.8013/Y.1731 (2013), OAM functions and mechanisms for Ethernet based networks. ITU-T G.8051 Recommendation ITU-T G.8051/Y.1345 (2013),
41、 Management aspects of the Ethernet Transport (ET) capable network element. ITU-T G.8110.1 Recommendation ITU-T G.8110.1/Y.1370.1 (2011), Architecture of Multi-Protocol Label Switching transport profile layer network. ITU-T G.8113.1 Recommendation ITU-T G.8113.1/Y.1372.1 (2011), Operations, administ
42、ration and maintenance mechanism for MPLS-TP in packet transport networks. ITU-T G.8113.2 Recommendation ITU-T G.8113.2/Y.1372.2 (2012), Operations, administration and maintenance mechanisms for MPLS-TP networks using the tools defined for MPLS. ITU-T G.8121 Recommendation ITU-T G.8121/Y.1381 (2013)
43、, Characteristics of MPLS-TP equipment functional blocks. ITU-T G.8121.1 Recommendation ITU-T G.8121.1/Y.1381.1 (2013), Characteristics of MPLS-TP equipment functional blocks supporting ITU-T G.8113.1/Y.1372.1OAM mechanisms. Rec. ITU-T G.8151/Y.1374 (01/2015) 3 ITU-T G.8121.2 Recommendation ITU-T G.
44、8121.2/Y.1381.2 (2013), Characteristics of MPLS-TP equipment functional blocks supporting ITU-T G.8113.2/Y.1372.2 OAM mechanisms. 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) and Amendments, Princi
45、ples for a telecommunications management 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
46、 framework for Open Systems Interconnection (OSI) For CCITT applications. ITU-T X.701 Recommendation ITU-T X.701 (1997), Information technology Open Systems Interconnection Systems management overview. ITU-T X.733 Recommendation ITU-T X.733 (1992) and Amendments, Information technology Open Systems
47、Interconnection Systems Management: Alarm reporting function. ITU-T X.735 Recommendation ITU-T X.735 (1992) and Amendments, Information technology Open Systems Interconnection Systems Management: Log control function. ITU-T Y.1563 Recommendation ITU-T Y.1563 (2009), Ethernet frame transfer and avail
48、ability performance. 3 Definitions 3.1 Terms defined elsewhere This Recommendation uses the following terms defined elsewhere: 3.1.1 agent: ITU-T X.701 3.1.2 alarm reporting: ITU-T M.3100 3.1.3 alarm reporting control (ARC): ITU-T M.3100 3.1.4 atomic function: ITU-T G.806 3.1.5 data communication ne
49、twork (DCN): ITU-T G.7712 3.1.6 local craft terminal (LCT): ITU-T G.7710 3.1.7 managed entity: ITU-T M.3100 3.1.8 managed object (MO): ITU-T X.700 3.1.9 managed object class (MOC): ITU-T X.701 3.1.10 management application function (MAF): ITU-T G.7710 3.1.11 management interface: ITU-T M.3100 3.1.12 management point (MP): ITU-T G.806 3.1.13 manager: ITU-T X.701 3.1.14 message communication fun
