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 Amendment 1 (04/2016) SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS Packet over Transport aspects MPLS over Transport aspects SERIES Y:
2、GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT-GENERATION NETWORKS, INTERNET OF THINGS AND SMART CITIES Internet protocol aspects Transport Management aspects of the MPLS-TP network element Amendment 1 Recommendation ITU-T G.8151/Y.1374 (2015) Amendment 1 ITU-T G-SERIES RECOMM
3、ENDATIONS TRANSMISSION SYSTEMS AND MEDIA, DIGITAL 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
4、LINES G.300G.399 GENERAL CHARACTERISTICS OF INTERNATIONAL 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 DIGI
5、TAL TERMINAL EQUIPMENTS G.700G.799 DIGITAL NETWORKS 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.7
6、999 PACKET OVER TRANSPORT ASPECTS G.8000G.8999 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 li
7、st of ITU-T Recommendations. Rec. ITU-T G.8151/Y.1374 (2015)/Amd.1 (04/2016) i Recommendation ITU-T G.8151/Y.1374 Management aspects of the MPLS-TP network element Amendment 1 Summary Recommendation ITU-T G.8151/Y.1374 addresses management aspects of the multi-protocol label switching (MPLS) transpo
8、rt 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 regardless of the
9、 client. The management functions for fault management, configuration management, performance monitoring 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 specifica
10、tion for managing MPLS-TP network elements (NEs) that support the operation, administration and maintenance (OAM) protocol neutral equipment functionality as defined in Recommendation ITU-T G.8121/Y.1381. This Amendment 1 to the 2015 edition: Adds cFOP related MI signals for Fault Cause Persistency
11、function in Table 7-1, Alarm Reporting Control function in Table 7-2, Operational State function in Table 7-3 to align with ITU-T G.8121/Y.1381. Adds the APS related MI signals for provisioning and reporting for connection functions in Table 8-4 to align with ITU-T G.8121/Y.1381. Removes APS related
12、 MI signals for provisioning and reporting for adaptation functions Table 8-2 to align with ITU-T G.8121/Y.1381. Adds new MI signals of intermediate request for LMo, DMo, SLo, and 1DMo to Table 8-3 to align with ITU-T G.8121/Y.1381. Adds new MI signals for proactive measurements to Table 8-1, to ali
13、gn with ITU-T G.8121/Y.1381, as: Adds MT_TT_ So/Sk_1SLp Adds MT_TT_ So/Sk_MI_1LMp_Enable (Also Removed MT_TT_ So/Sk_LMC_Enable from Table 8-1.1) Adds 1M to MT_TT_ So/Sk_LMp/DMp/1DMp/1SLp_OAM_Tool Renames ODCV to CV in Table 8-3.2 to align with ITU-T G.8121.2/Y.1381.2. History Edition Recommendation
14、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 (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.8
15、151/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 _ * 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 example, http:/handle.itu.i
16、nt/11.1002/1000/11830-en. ii Rec. ITU-T G.8151/Y.1374 (2015)/Amd.1 (04/2016) 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 Standardizat
17、ion 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), which mee
18、ts 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 within ITU-Ts
19、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 Recommendation is
20、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 as “must“ a
21、nd 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 implementation of this Recommendation may inv
22、olve 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 approval of this Rec
23、ommendation, 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 patent database
24、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 (2015)/Amd.1 (04/2016) iii Table of Contents Page 1 Scope . 1 2 References . 2 3 Definitions 3
25、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 .
26、 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 . 36 8.7 Connection 44 8.8 DEG th
27、resholds 45 8.9 XXX_Reported . 45 8.10 Alarm severity 45 8.11 Alarm reporting control 45 8.12 PM thresholds . 45 8.13 TCM activation . 45 8.14 Date and time 45 9 Accounting management 46 10 Performance management 46 10.1 Performance management applications 46 10.2 Performance monitoring functions .
28、46 11 Security management 50 Bibliography. 51 Rec. ITU-T G.8151/Y.1374 (2015)/Amd.1 (04/2016) 1 Recommendation ITU-T G.8151/Y.1374 Management aspects of the MPLS-TP network element Amendment 1 Editorial note: This is a complete-text publication. Modifications introduced by this amendment are shown i
29、n revision marks relative to Recommendation ITU-T G.8151 (2015). 1 Scope This Recommendation 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 networks of the MPLS-T
30、P 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. In this edition of the Recommendation, fault management, configuration management, performance management and securit
31、y 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 requirements for the management of equipment used in networks supporting an MPLS-TP are specified in b-IETF RFC 5951. T
32、his 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 function; MPLS-TP layer trail termination functions; MPLS-TP server to MPLS-TP client adaptation functions; MPLS-TP serve
33、r to Ethernet client adaptation functions; Synchronous digital hierarchy (SDH) server to MPLS-TP client adaptation functions; Plesiochronous digital hierarchy (PDH) server to MPLS-TP client adaptation functions; Optical transport network (OTN) sever to MPLS-TP client adaptation functions; Ethernet M
34、AC 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 Recommendation also describes the management network organizational model for communication between an element management laye
35、r (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-TP transport networks is based on the following considerations: The management view of network element functional el
36、ements 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 management view are to be included in this Recommendation; MPLS-TP layer network entities (MTLNEs) refer to trail termination
37、, 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 client layer network entities (CLNEs); 2 Rec. ITU-T G.8151/Y.1374 (2015)/Amd.1 (04/2016) Client layer entities are ma
38、naged 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 on the application; CLNE and MTLNE may or may not share the same agent; Server layer
39、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 transport technologies (e.g., SDH, OTN and Ethernet). 2 References The following ITU-T Recommendation
40、s 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 Recommendations and other references are subject to revision; all users of this Recommendation are therefo
41、re 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 published. The reference to a document within this Recommendation does not give it, as a stand-a
42、lone 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.709/Y.1331 (2012), Interfaces for the optical transport network. ITU-T G.805 Recommendation ITU-
43、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 functionality. ITU-T G.7041 Recommendation ITU-T G.7041/Y.1303 (2011), Generic framing procedure. ITU-T G.7
44、044 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 G.7712 Recommendation ITU-T G.7712/Y.1703 (2010), Architecture and specification of data communication n
45、etwork. ITU-T G.8013 Recommendation ITU-T G.8013/Y.1731 (20132015), OAM functions and mechanisms for Ethernet based networks. 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.
46、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 (20161), Operations, administration and maintenance mechanism for MPLS-TP in packet transport networks. ITU-T G.8113.2 Recommendation ITU-T G.8113.
47、2/Y.1372.2 (20152), Operations, administration and maintenance mechanisms for MPLS-TP networks using the tools defined for MPLS. Rec. ITU-T G.8151/Y.1374 (2015)/Amd.1 (04/2016) 3 ITU-T G.8121 Recommendation ITU-T G.8121/Y.1381 (20163), Characteristics of MPLS-TP equipment functional blocks. ITU-T G.
48、8121.1 Recommendation ITU-T G.8121.1/Y.1381.1 (20163), Characteristics of MPLS-TP equipment functional blocks supporting ITU-T G.8113.1/Y.1372.1OAM mechanisms. ITU-T G.8121.2 Recommendation ITU-T G.8121.2/Y.1381.2 (20163), Characteristics of MPLS-TP equipment functional blocks supporting ITU-T G.811
49、3.2/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, Principles 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), Gene
