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.8101/Y.1355 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (11/2016) 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 Terms and definitions for MPLS transport profile Recommendation ITU-T G.8101/Y.1355 ITU-T G-SERIES RECOMMENDATIONS TRANSMISSION SYSTEMS AND MEDIA, DIGIT
3、AL 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 INT
4、ERNATIONAL 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 NETW
5、ORKS 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.8101/
7、Y.1355 (11/2016) i Recommendation ITU-T G.8101/Y.1355 Terms and definitions for MPLS transport profile Summary Recommendation ITU-T G.8101/Y.1355 is a compilation of terms and abbreviations used in Recommendations associated with multiprotocol label switching transport profile (MPLS-TP). History Edi
8、tion Recommendation Approval Study Group Unique ID* 1.0 ITU-T G.8101/Y.1355 2006-12-14 15 11.1002/1000/9004 2.0 ITU-T G.8101/Y.1355 2010-07-29 15 11.1002/1000/10905 3.0 ITU-T G.8101/Y.1355 2012-10-29 15 11.1002/1000/11775 4.0 ITU-T G.8101/Y.1355 2013-09-13 15 11.1002/1000/12022 5.0 ITU-T G.8101/Y.13
9、55 2015-01-13 15 11.1002/1000/12384 Keywords Abbreviation, acronym, definition, MPLS-TP, terminology. _ * 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.int/11.1002/10
10、00/11830-en. ii Rec. ITU-T G.8101/Y.1355 (11/2016) 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 Standardization Sector (ITU-T) is a pe
11、rmanent 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 meets every four years, estab
12、lishes 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 purview, the necessary sta
13、ndards 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 voluntary. However, the Re
14、commendation 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“ and the negative equivalent
15、s 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 involve the use of a claimed
16、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 Recommendation, ITU had not r
17、eceived 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 at http:/www.itu.int/ITU-T
18、/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.8101/Y.1355 (11/2016) iii Table of Contents Page 1 Scope . 1 2 References . 1 3 Definitions 2 3.1 Terms defined elsewhere 2 3.2 Terms
19、 defined in this Recommendation . 9 4 Abbreviations and acronyms 10 Appendix I List of source Recommendations . 20 Appendix II Terms and definitions for MPLS transport profile defined by the IETF 21 II.1 Definitions 21 II.2 Abbreviations . 23 Bibliography. 24 Rec. ITU-T G.8101/Y.1355 (11/2016) 1 Rec
20、ommendation ITU-T G.8101/Y.1355 Terms and definitions for MPLS transport profile 1 Scope This Recommendation contains a complete listing of the definitions and abbreviations used in the Recommendations associated with multiprotocol label switching transport profile (MPLS-TP) listed in Appendix I. Th
21、is Recommendation provides a representation of the MPLS-TP technology using the methodologies that have been used for other transport technologies, e.g., synchronous digital hierarchy (SDH), optical transport network (OTN) and Ethernet1. 2 References The following ITU-T Recommendations and other ref
22、erences 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; users of this Recommendation are therefore encouraged to in
23、vestigate 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-alone document, the
24、status of a Recommendation. ITU-T G.704 Recommendation ITU-T G.704 (1998), Synchronous frame structures used at 1544, 6312, 2048, 8448 and 44 736 kbit/s hierarchical levels. ITU-T G.705 Recommendation ITU-T G.705 (2000), Characteristics of plesiochronous digital hierarchy (PDH) equipment functional
25、blocks. ITU-T G.780 Recommendation ITU-T G.780/Y.1351 (2010), Terms and definitions for synchronous digital hierarchy (SDH) networks. 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 o
26、f transport equipment Description methodology and generic functionality. ITU-T G.808 Recommendation ITU-T G.808 (2016), Terms and definitions for network protection and restoration. ITU-T G.832 Recommendation ITU-T G.832 (1998), Transport of SDH elements on PDH networks Frame and multiplexing struct
27、ures. 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 network. ITU-T G.8001 Recommendation ITU-T G.8001/Y.1354 (2016), Terms and def
28、initions for Ethernet frames over transport. _ 1 This ITU-T Recommendation is intended to be aligned with the IETF MPLS RFCs normatively referenced by this Recommendation. 2 Rec. ITU-T G.8101/Y.1355 (11/2016) ITU-T G.8112 Recommendation ITU-T G.8112/Y.1371 (2015), Interfaces for the MPLS transport p
29、rofile layer network. ITU-T G.8131 Recommendation ITU-T G.8131/Y.1382 (2014), Linear protection switching for MPLS transport profile. 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), Consideratio
30、ns 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 Interconnection (OSI) for CCITT applications. ITU-T X.701 Recommendation ITU-T X.70
31、1 (1997), Information technology Open Systems Interconnection Systems management overview. ITU-T X.731 Recommendation ITU-T X.731 (1992) ISO/IEC 10164-2:1993, Information technology Open Systems Interconnection Systems management: State management function. IETF RFC 3031 IETF RFC 3031 (2001), Multip
32、rotocol Label Switching Architecture. IETF RFC 3032 IETF RFC 3032 (2001), MPLS Label Stack Encoding. IETF RFC 3270 IETF RFC 3270 (2002), Multi-Protocol Label Switching (MPLS) Support of Differentiated Services. IETF RFC 5462 IETF RFC 5462 (2009), Multiprotocol Label Switching (MPLS) Label Stack Entr
33、y: “EXP“ Field Renamed to “Traffic Class“ Field. IETF RFC 5586 IETF RFC 5586 (2009), MPLS Generic Associated Channel. IETF RFC 5921 IETF RFC 5921 (2010), A Framework for MPLS in Transport Networks. 3 Definitions 3.1 Terms defined elsewhere This Recommendation uses the following terms defined elsewhe
34、re: 3.1.1 1+1 (protection) architecture: ITU-T G.808 NOTE 1+1 protection architecture is referred to in ITU-T G.8131. 3.1.2 1:n (protection) architecture: ITU-T G.808 NOTE 1:n protection architecture is referred to in ITU-T G.8131. 3.1.3 1-phase (APS protocol): ITU-T G.808 NOTE 1-phase is referred t
35、o in ITU-T G.8131. 3.1.4 2-phase (APS protocol): ITU-T G.808 NOTE 2-phase is referred to in ITU-T G.8131. 3.1.5 3-phase (APS protocol): ITU-T G.808 NOTE 3-phase is referred to in ITU-T G.8131. 3.1.6 active transport entity: ITU-T G.808 NOTE active transport entity is referred to in ITU-T G.8131. Rec
36、. ITU-T G.8101/Y.1355 (11/2016) 3 3.1.7 access point: ITU-T G.805 NOTE Access point is referred to in b-ITU-T G.8110.1, b-ITU-T G.8121, b-ITU-T G.8121.1 and b-ITU-T G.8121.2. 3.1.8 adapted information: ITU-T G.805 NOTE Adapted information is referred to in b-ITU-T G.8110.1, b-ITU-T G.8121, b-ITU-T G
37、.8121.1 and b-ITU-T G.8121.2. 3.1.9 administrative domain: ITU-T G.805 NOTE Administrative domain is referred to in b-ITU-T G.8110.1. 3.1.10 agent: ITU-T X.701 NOTE Agent is referred to in b-ITU-T G.8151. 3.1.11 administrative state: ITU-T X.731 NOTE Administrative state is referred to in b-ITU-T G.
38、8110.1. 3.1.12 alarm reporting: ITU-T M.3013 NOTE Alarm reporting is referred to in b-ITU-T G.8151. 3.1.13 alarm reporting control (ARC): ITU-T M.3013 NOTE Alarm reporting control (ARC) is referred to in b-ITU-T G.8151. 3.1.14 APS protocol: ITU-T G.808 NOTE APS protocol is referred to in ITU-T G.813
39、1. 3.1.15 architecture: ITU-T G.808 NOTE architecture is referred to in ITU-T G.8131. 3.1.16 associated channel header: IETF RFC 5586 NOTE Associated channel header is referred to in b-ITU-T G.8110.1, b-ITU-T G.8121, b-ITU-T G.8121.1 and b-ITU-T G.8121.2. 3.1.17 atomic function (AF): ITU-T G.806 NOT
40、E Atomic function (AF) is referred to in b-ITU-T G.8151. 3.1.18 bidirectional protection switching: ITU-T G.780 NOTE Bidirectional protection switching is referred to in ITU-T G.8131. 3.1.19 bridge: ITU-T G.808 NOTE bridge is referred to in ITU-T G.8131. 3.1.20 bottom of stack: IETF RFC 3032 NOTE Bo
41、ttom of stack is referred to in b-ITU-T G.8110.1, b-ITU-T G.8121, b-ITU-T G.8121.1 and b-ITU-T G.8121.2. 3.1.21 characteristic information: ITU-T G.805 NOTE Characteristics information is referred to in b-ITU-T G.8110.1, b-ITU-T G.8121, b-ITU-T G.8121.1 and b-ITU-T G.8121.2. 3.1.22 client/server rel
42、ationship: ITU-T G.805 NOTE Client/server relationship is referred to in b-ITU-T G.8110.1, b-ITU-T G.8121, b-ITU-T G.8121.1 and b-ITU-T G.8121.2. 4 Rec. ITU-T G.8101/Y.1355 (11/2016) 3.1.23 connection: ITU-T G.805 NOTE Connection is referred to in b-ITU-T G.8110.1, b-ITU-T G.8121, b-ITU-T G.8121.1 a
43、nd b-ITU-T G.8121.2. 3.1.24 connection point: ITU-T G.805 NOTE Connection point is referred to in b-ITU-T G.8110.1, b-ITU-T G.8121, b-ITU-T G.8121.1 and b-ITU-T G.8121.2. 3.1.25 connection supervision: ITU-T G.805 NOTE Connection supervision is referred to in b-ITU-T G.8110.1. 3.1.26 customer edge (
44、CE): IETF RFC 5921 NOTE CE is referred to in ITU-T G.8112. 3.1.27 data communication network (DCN): ITU-T G.7712 NOTE Data communication network (DCN) is referred to in b-ITU-T G.8151. 3.1.28 defect: ITU-T G.806 NOTE Defect is referred to in b-ITU-T G.8113.1, b-ITU-T G.8113.2 and ITU-T G.8131. 3.1.2
45、9 dual-ended: ITU-T G.8001 NOTE Dual-ended is referred to in b-ITU-T G.8152. 3.1.30 explicitly TC-encoded-PSC LSP: IETF RFC 5462 NOTE Explicitly TC-encoded-PSC LSP is referred to in b-ITU-T G.8110.1, b-ITU-T G.8121, b-ITU-T G.8121.1 and b-ITU-T G.8121.2. 3.1.31 failure: ITU-T G.806 NOTE Failure is r
46、eferred to in b-ITU-T G.8113.1, b-ITU-T G.8113.2 and ITU-T G.8131. 3.1.32 forced switch: ITU-T G.808 NOTE forced switch is referred to in ITU-T G.8131. 3.1.33 G-ACh label: IETF RFC 5586 NOTE G-ACh Label is referred to in b-ITU-T G.8121, b-ITU-T G.8121.1 and b-ITU-T G.8121.2. 3.1.34 G-ACh packet: IET
47、F RFC 5586 NOTE G-ACh packet is referred to in b-ITU-T G.8110.1. 3.1.35 G-ACh packet payload: IETF RFC 5586 NOTE G-ACh packet payload is referred to in b-ITU-T G.8110.1. 3.1.36 generic associated channel: IETF RFC 5586 NOTE Generic associated channel is referred to in b-ITU-T G.8110.1, b-ITU-T G.812
48、1, b-ITU-T G.8121.1 and b-ITU-T G.8121.2. 3.1.37 hold-off time: ITU-T G.808 NOTE hold-off time is referred to in ITU-T G.8131. 3.1.38 label: IETF RFC 3031 NOTE Label is referred to in b-ITU-T G.8110.1, b-ITU-T G.8121, b-ITU-T G.8121.1 and b-ITU-T G.8121.2. 3.1.39 label inferred PHB scheduling class LSP: IETF RFC 3270 NOTE Label inferred PHB scheduling class LSP is referred to in b-ITU-T G.8110.1, b-ITU-T G.8121, b-ITU-T G.8121.1 and b-
