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 (08/2017) 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, NEXT-GENERATION NETWORKS, INTERNET OF THINGS AND SMART CITIES 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, DIGI
3、TAL SYSTEMS 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 IN
4、TERNATIONAL 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 NET
5、WORKS 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
6、 Ethernet 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.8151
7、/Y.1374 (08/2017) i Recommendation 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 funct
8、ions 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 regardless of the client. The management functions for fault management, configuration m
9、anagement, performance monitoring and security management are specified. The 2012 revision 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 oper
10、ations, administration, maintenance (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 11.1002/10
11、00/11518 2.1 ITU-T G.8151/Y.1374 (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 3.1 ITU-T G.8151/Y.1374 (2015) Amd. 1 2016-04-13 15 11.1002/1000/12825 4.0 ITU-T G.8151/Y.13
12、74 2017-08-13 15 11.1002/1000/13319 Keywords Configuration, equipment management, fault, MPLS-TP, performance monitoring, transport resource. * To access the Recommendation, type the URL http:/handle.itu.int/ in the address field of your web browser, followed by the Recommendations unique ID. For ex
13、ample, http:/handle.itu.int/11.1002/1000/11830-en. ii Rec. ITU-T G.8151/Y.1374 (08/2017) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication
14、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 Telecommunication Standardization Assembly (WTSA
15、), 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 information technology which fall wi
16、thin 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 agency. Compliance with this Recomm
17、endation 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 some other obligatory language such
18、 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 practice or implementation of this Recommend
19、ation 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 process. As of the date of approva
20、l 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 strongly urged to consult the TSB pat
21、ent database at http:/www.itu.int/ITU-T/ipr/. ITU 2017 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 (08/2017) iii Table of Contents Page 1 Scope . 1 2 References . 2 3 Definitions 3
22、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 Information flows over management points .
23、 11 7 Fault (maintenance) management . 12 7.1 Fault management applications 12 7.2 Fault management functions . 14 8 Configuration management 21 8.1 Hardware 21 8.2 Software 21 8.3 Protection switching . 21 8.4 Trail termination . 21 8.5 Adaptation 25 8.6 Diagnostic . 37 8.7 Connection 42 8.8 Degrad
24、ed (DEG) thresholds . 44 8.9 XXX_Reported . 44 8.10 Alarm severity 44 8.11 Alarm reporting control 44 8.12 PM thresholds . 44 8.13 TCM activation . 44 8.14 Date and time 44 9 Accounting management 45 10 Performance management 45 10.1 Performance management applications 45 10.2 Performance monitoring
25、 functions . 45 11 Security management 49 Bibliography. 50 Rec. ITU-T G.8151/Y.1374 (08/2017) 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 (MPLS) transport profile
26、 (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 regardless of the client. I
27、n this version 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-T G.7710 and the req
28、uirements 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 layer connection funct
29、ion; 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) server to MPLS-TP c
30、lient 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 study. This Recommenda
31、tion 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 management of MPLS-
32、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 a uniform managemen
33、t 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 contain both MTLNEs and c
34、lient layer network entities (CLNEs); client layer entities are managed as part of their own logical domain (e.g., Ethernet management network); CLNE and MTLNE may or may not share a common message communication function (MCF) and management application function (MAF) depending on the application; 2
35、 Rec. ITU-T G.8151/Y.1374 (08/2017) CLNE and MTLNE may or may not share the same agent; 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 have been used for other
36、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 were valid. All Recom
37、mendations 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 ITU-T Recommendations is regularly
38、 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.709 Recommendation ITU-T G
39、.709/Y.1331 (2016), 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 methodology and generic functional
40、ity. ITU-T G.7041 Recommendation ITU-T G.7041/Y.1303 (2016), Generic framing procedure (GFP). 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 requirements. ITU-T
41、G.7712 Recommendation ITU-T G.7712/Y.1703 (2010), Architecture and specification of data communication network. ITU-T G.8051 Recommendation ITU-T G.8051/Y.1345 (2013), Management aspects of the Ethernet Transport (ET) capable network element. ITU-T G.8110.1 Recommendation ITU-T G.8110.1/Y.1370.1 (20
42、11), Architecture of MPLS Transport Profile (MPLS-TP) layer network. ITU-T G.8113.1 Recommendation ITU-T G.8113.1/Y.1372.1 (2011), Operations, administration 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,
43、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 (2016), Characteristics of MPLS-TP equipment functional blocks. ITU-T G.8121.1 Recommendation ITU-T G.8121.1/Y.1381.1 (2016), Characteristics of MPLS Trans
44、port Profile (MPLS-TP) equipment functional blocks supporting G.8113.1/Y.1372.1 OAM mechanisms. Rec. ITU-T G.8151/Y.1374 (08/2017) 3 ITU-T G.8121.2 Recommendation ITU-T G.8121.2/Y.1381.2 (2016), Characteristics of MPLS Transport Profile (MPLS-TP) equipment functional blocks supporting G.8113.2/Y.137
45、2.2 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), Principles for a telecommunications management network. ITU-T M.3013 Recommendation ITU-T M.3013 (2000), Considerations for a telec
46、ommunications 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 Interconnection (OSI) For CCITT Applications. ITU-T X.701 Recommendation ITU-T X.701 (1997), Info
47、rmation technology Open Systems Interconnection Systems management overview. ITU-T X.733 Recommendation ITU-T X.733 (1992), Information technology Open Systems Interconnection Systems Management: Alarm reporting function. ITU-T X.735 Recommendation ITU-T X.735 (1992), Information technology Open Sys
48、tems Interconnection Systems management: Log control function. ITU-T Y.1563 Recommendation ITU-T Y.1563 (2009), Ethernet frame transfer and availability 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
49、.2 alarm reporting: ITU-T M.3100 3.1.3 alarm reporting control (ARC): ITU-T M.3100 3.1.4 atomic function (AF): ITU-T G.806 3.1.5 data communication network (DCN): ITU-T G.7712 3.1.6 local craft terminal: 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:
