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 M.1400 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (04/2015) SERIES M: TELECOMMUNICATION MANAGEMENT, INCLUDING TMN AND NETWORK MAINTENANCE Designations and information exchange Designations for interconnections among op
2、erators networks Recommendation ITU-T M.1400 ITU-T M-SERIES RECOMMENDATIONS TELECOMMUNICATION MANAGEMENT, INCLUDING TMN AND NETWORK MAINTENANCE Introduction and general principles of maintenance and maintenance organization M.10M.299 International transmission systems M.300M.559 International teleph
3、one circuits M.560M.759 Common channel signalling systems M.760M.799 International telegraph systems and phototelegraph transmission M.800M.899 International leased group and supergroup links M.900M.999 International leased circuits M.1000M.1099 Mobile telecommunication systems and services M.1100M.
4、1199 International public telephone network M.1200M.1299 International data transmission systems M.1300M.1399 Designations and information exchange M.1400M.1999 International transport network M.2000M.2999 Telecommunications management network M.3000M.3599 Integrated services digital networks M.3600
5、M.3999 Common channel signalling systems M.4000M.4999 For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-T M.1400 (04/2015) i Recommendation ITU-T M.1400 Designations for interconnections among operators networks Summary Recommendation ITU-T M.1400 covers the designatio
6、ns of interconnections among operators networks of circuits, groups, group and line links, digital blocks, digital paths, data transmission systems, digital blocks created between digital circuit multiplication equipment (DCME), virtual containers and multiplex sections. The designation information
7、is in two layers: Layer 1: The unique information; the designation; Layer 2: Additional information; the related information. Guidance for the user is provided in a series of examples. History Edition Recommendation Approval Study Group Unique ID* 1.0 ITU-T M.14 1960-12-16 11.1002/1000/7407 2.0 ITU-
8、T M.14 1964-06-26 11.1002/1000/7406 3.0 ITU-T M.14 1968-10-25 11.1002/1000/7405 4.0 ITU-T M.14 1972-12-15 11.1002/1000/7404 5.0 ITU-T M.140 1976-10-08 11.1002/1000/7403 6.0 ITU-T M.140 1980-11-21 11.1002/1000/7402 7.0 ITU-T M.140 1984-10-19 11.1002/1000/5748 8.0 ITU-T M.140 1988-11-25 11.1002/1000/1
9、488 9.0 ITU-T M.1400 1992-10-05 11.1002/1000/1489 10.0 ITU-T M.1400 1997-04-19 4 11.1002/1000/4033 10.1 ITU-T M.1400 (1997) Amd. 1 1998-06-26 4 11.1002/1000/4421 11.0 ITU-T M.1400 2000-02-04 4 11.1002/1000/4861 12.0 ITU-T M.1400 2001-10-14 4 11.1002/1000/5554 12.1 ITU-T M.1400 (2001) Amd. 1 2002-05-
10、29 4 11.1002/1000/6037 13.0 ITU-T M.1400 2004-01-10 4 11.1002/1000/7092 14.0 ITU-T M.1400 2006-07-14 4 11.1002/1000/8853 15.0 ITU-T M.1400 2013-03-16 2 11.1002/1000/11903 16.0 ITU-T M.1400 2015-04-29 2 11.1002/1000/12467 _ * To access the Recommendation, type the URL http:/handle.itu.int/ in the add
11、ress 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 M.1400 (04/2015) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, inf
12、ormation 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 view to standardizing telecommunications on a w
13、orldwide 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 Recommendations is covered by the procedure laid down i
14、n 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 conciseness to indicate both a telecommunication adm
15、inistration 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 Recommendation is achieved when all of these mandatory pr
16、ovisions 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. INTELLECTUAL PROPERTY RIGHTSITU draws attention
17、 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, whether asserted by ITU members or others out
18、side 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 are cautioned that this may not represent the l
19、atest 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 permission of ITU. Rec. ITU-T M.1400 (04/2015) iii Ta
20、ble of Contents Page 1 Scope . 1 2 References . 2 3 Definitions 5 4 Abbreviations and acronyms 7 5 Conventions 8 6 Framework 9 6.1 Layer 1 9 6.2 Layer 2 11 6.3 Implementation . 11 6.4 Operator information 11 7 Designations of public switched circuit interconnections 12 7.1 General . 12 7.2 Telephone
21、-type circuits 13 7.3 Circuit used for switched telex and telegraph services 14 7.4 Interconnecting circuits in the public switched data network 14 7.5 Related information 14 8 Related information for public switched circuit interconnections 15 8.1 Urgency for restoration item 1 . 15 8.2 Terminal co
22、untries item 2 15 8.3 Names of network operators/service providers item 3 15 8.4 Control station (sub-control station(s) item 4 . 16 8.5 Fault report points item 5 . 16 8.6 Routing item 6 . 16 8.7 Association item 7 . 17 8.8 Equipment information item 8 . 17 8.9 Use item 9 18 8.10 Transmission mediu
23、m information item 10 . 18 8.11 Composition of the transmission item 11 19 8.12 Bandwidth or bit rate item 12 19 8.13 Signalling type item 13 19 9 Designations of fixed (non-switched) circuit interconnections between operators 20 9.1 General . 20 9.2 Leased circuit interconnections 21 9.3 Fixed (non
24、-switched) public circuits 26 9.4 Related information 29 10 Related information for fixed circuit interconnections . 29 10.1 Urgency for restoration item 1 . 29 iv Rec. ITU-T M.1400 (04/2015) Page 10.2 Terminal countries item 2 30 10.3 Names of network operators/service providers item 3 30 10.4 Cont
25、rol station (sub-control station(s) item 4 . 30 10.5 Fault report points item 5 . 31 10.6 Routing item 6 . 31 10.7 Association item 7 . 32 10.8 Equipment information item 8 . 33 10.9 Use item 9 33 10.10 Transmission medium information item 10 . 33 10.11 Composition of the transmission item 11 34 10.
26、12 Bandwidth or bit rate item 12 34 10.13 Signalling type item 13 35 10.14 Applicable ITU-T Recommendations item 14 . 35 11 Designations of group, supergroup, etc. (bidirectional and unidirectional) interconnections 35 11.1 General . 35 11.2 Bidirectional groups, etc. 36 11.3 Unidirectional groups a
27、nd supergroups 38 11.4 Related information 39 12 Designations of group link, supergroup link and line link interconnections 39 12.1 Group and supergroup links . 39 12.2 Line links 40 12.3 Related information 41 13 Related information for group, group link and line link interconnections . 41 13.1 Urg
28、ency for restoration item 1 . 42 13.2 Terminal countries item 2 42 13.3 Names of network operators/service providers item 3 42 13.4 Control station sub-control station(s) item 4 . 43 13.5 Fault report points item 5 . 43 13.6 Routing item 6 . 44 13.7 Association item 7 . 45 13.8 Equipment information
29、 item 8 . 45 13.9 Use item 9 46 13.10 Transmission medium information item 10 . 46 13.11 End-to-end information or operational agreement item 11 . 46 13.12 Bandwidth item 12 . 47 13.13 Occupancy (for groups/supergroups, etc., and for line links) item 13 . 47 14 Designations of digital block (bidirec
30、tional and unidirectional) interconnections . 48 14.1 General . 48 Rec. ITU-T M.1400 (04/2015) v Page 14.2 Bidirectional digital blocks . 50 14.3 Restoration digital blocks . 50 14.4 Multiple destination unidirectional digital blocks 50 14.5 Single destination unidirectional digital blocks . 51 14.6
31、 Related information 51 15 Designation of digital path interconnections 51 15.1 Conventional digital paths not connected to their terminal equipment 51 15.2 Restoration digital paths . 52 15.3 Digital line sections and digital radio sections . 52 15.4 Related information 52 16 Designations of routes
32、 in the mixed analogue/digital transmission network . 52 16.1 Transmission routes with one analogue-to-digital conversion . 53 16.2 Transmission routes with two analogue-to-digital conversions . 54 16.3 Transmission routes with more than two analogue-to-digital conversions 56 16.4 Related informatio
33、n 56 17 Designation of data transmission systems 56 17.1 General . 56 17.2 Data transmission links . 59 17.3 Related information 60 18 Designations of digital block interconnections created by the interconnection of digital circuit multiplication equipments (DCMEs) . 60 18.1 General . 60 18.2 Multi-
34、clique configuration of DCMEs . 61 18.3 Low-rate encoding equipment 62 18.4 Related information 62 19 Synchronous digital hierarchy (SDH) 63 19.1 Designation of multiplex sections of the synchronous digital hierarchy (SDH) . 63 19.2 Designations of virtual container interconnections 64 19.3 Concaten
35、ated virtual containers . 66 19.4 Leased circuits based on SDH 67 20 Related information for digital block, path, data transmission system, block interconnections created by the interconnection of DCMEs, SDH multiplex sections and virtual containers 68 20.1 Urgency for restoration item 1 . 68 20.2 T
36、erminal countries item 2 69 20.3 Names of network operators/service providers item 3 69 20.4 Control station sub-control station(s) item 4 . 70 20.5 Fault report points item 5 . 70 20.6 Routing item 6 . 71 vi Rec. ITU-T M.1400 (04/2015) Page 20.7 Association item 7 . 72 20.8 Equipment information it
37、em 8 . 73 20.9 Use item 9 74 20.10 Transmission medium information item 10 . 75 20.11 End-to-end information or composition of transmission or operational agreement item 11 75 20.12 Bit rate (for blocks, paths and SDH multiplex sections) item 12 76 20.13 Occupancy (except for paths) item 13 . 76 20.
38、14 Actual number of channels and access point identifier item 14 79 20.15 Clocking information (for blocks only) item 15 80 20.16 Direction of transmission (for unidirectional blocks) item 16 . 80 21 Designation of connections for the asynchronous transfer mode (ATM) 81 21.1 General . 81 21.2 Transp
39、ort links 81 21.3 Virtual path . 82 21.4 Virtual channels (VCAs) 83 21.5 ATM Layer 2 83 22 Related information for the asynchronous transfer mode (ATM) 84 22.1 Urgency for restoration item 1 . 84 22.2 Terminal countries item 2 84 22.3 Names of network operators/service providers item 3 84 22.4 Contr
40、ol and sub-control station(s) item 4 84 22.5 Fault report points item 5 . 84 22.6 Routing item 6 . 84 22.7 Association item 7 . 84 22.8 Equipment information item 8 . 84 22.9 Use item 9 85 22.10 Transmission medium information item 10 . 85 22.11 Operational agreement item 11 85 22.12 Unassigned item
41、 item 12 85 22.13 Occupancy item 13 85 22.14 Direction of transmission (for unidirectional transit network services only) item 14 85 22.15 ATM transfer capability item 15 . 85 22.16 Source traffic descriptor item 16 . 86 22.17 Cell delay variation tolerance item 17 . 86 22.18 Quality of service item
42、 18 86 23 Transit network services . 87 23.1 General . 87 23.2 Transit digital transmission service 88 Rec. ITU-T M.1400 (04/2015) vii Page 23.3 Transit dark fibre service 89 23.4 Related information 89 24 Related information on transit network service 90 24.1 Urgency for restoration item 1 . 90 24.
43、2 Terminal countries item 2 90 24.3 Names of network operators/service providers item 3 90 24.4 Control station sub-control station(s) item 4 . 90 24.5 Fault report points item 5 . 90 24.6 Routing item 6 . 90 24.7 Association item 7 . 90 24.8 Equipment information item 8 . 90 24.9 Use item 9 90 24.1
44、0 Transmission medium information item 10 . 90 24.11 SLA item 11 . 91 24.12 Bit rate item 12 91 24.13 Commercial identifier item 13 . 91 24.14 Unassigned item item 14 91 24.15 Clocking information item 15 91 24.16 Direction of transmission (for unidirectional transit network services only) item 16 9
45、1 25 Designations for wavelength division multiplexing (simple and dense) 91 25.1 General . 91 25.2 The equipment 92 25.3 Configurations for the newly created transmission systems 93 25.4 General format for the optical transmission systems . 96 25.5 Related information 99 26 Related information on D
46、WDM . 99 27 Designation of connections for the digital subscriber line (DSL) 101 27.1 General . 101 27.2 Related information for the ADSL connections . 104 27.3 Related information for the SDSL connection . 105 27.4 Examples 106 28 Exceptional designations 107 28.1 Exceptional designations with inte
47、lligence in the serial number . 107 29 Designation of optical transport networks 107 29.1 General . 107 29.2 Data transmission links . 109 29.3 Related information 109 Annex A Full examples for designation information 111 viii Rec. ITU-T M.1400 (04/2015) Page A.1 Full example for the designation inf
48、ormation of a public switched telephone circuit . 111 A.2 Full example for the designation information of a leased analogue circuit . 111 A.3 Full examples for the designation information of a group and a group link interconnection . 112 A.4 Full examples for the designation information of a digital block, digital path, data transmission system, blocks created between DCMEs, virtual containers and SDH multiplex section interconnections 114 Annex B KLM addressing and its relationship to time slot numbering for virtual containers 123 B.1 KLM addressing relati
