1、INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU G.774 (02/2001) SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETVVORKS Digital terminal equipments - Operations, administration and maintenance features of transmission equipment Synchronous
2、digital hierarchy (SDH) - Management information model for the network element view ITU-T Recommendation G.774 (Formerly CCIlT Recommendation) ITU-T G-SERTES RECOMMENDATIONS TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS INTERNATIONAL TELEPHONE CONNECTIONS AND CIRCUITS TRANSMISSION SYS
3、TEMS SYSTEMS ON METALLIC LINES GENERAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE METALLIC LINES G.100-G.199 G.200-G.299 GENERAL CHARACTERISTICS COMMON TO ALL ANALOGUE CARRIER- INDIVIDUAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE G.300-G.3 99 G. 400-G. 449 SYSTEMS ON RADIO-RELAY OR
4、SATELLITE LINKS AND INTERCONNECTION WITH COORDINATION OF RADIOTELEPHONY AND LINE TELEPHONY G.450-G.499 TESTING EQUIPMENTS G. 500-G. 599 TRANSMISSION MEDIA CHARACTERISTICS G.600-G.699 DIGITAL TERMINAL EQUIPMENTS G.700-G.799 General G.700-G.709 Coding of analogue signals by pulse code modulation G. 7
5、1 O-G. 7 1 9 Coding of analogue signals by methods other than PCM G.720-G.729 Principal characteristics of primary multiplex equipment G.730-G.73 9 Principal characteristics of second order multiplex equipment G.740-G.749 Principal characteristics of higher order multiplex equipment G.750-G.759 Othe
6、r terminai equipment G. 7 90-G. 79 9 G. 800-G. 89 9 G.900-G.999 DIGITAL NETWORKS DIGITAL SECTIONS AND DIGITAL LINE SYSTEM For further details, please refer to the list of ITU-T Recommendations. ITU-T Recommendation G.774 200 1 Synchronous digital hierarchy (SDH) - Management information model for th
7、e network element view First revision incorporated the changes documented in the G.774 Corrigendum 1 (1996). Summary This Recommendation provides an information model for the synchronous digital hierarchy (SDH). This model describes the managed object classes and their properties that are useful to
8、describe information exchanged across interfaces defined in ITU-T M.3 O 1 O telecommunications management network (TMN) architecture. This Recommendation specialises the generic object classes of ITU-T M.3 100 to provide management information specifically for the SDH. 0911 992 I Document history In
9、itial version of the Recommendation. 7 Issue I Notes I I Source ITU-T Recommendation G.774 was revised by ITU-T Study Group 15 (2001-2004) and approved under the WTSA Resolution 1 procedure on 9 February 2001. ITU-T G.774 (02/2001) i FOREWORD The International Telecommunication Union (ITU) is the Un
10、ited Nations specialized agency in the field of telecommunications. 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 telec
11、ommunications on a worldwide 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 p
12、rocedure laid down in 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 IS0 and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a t
13、elecommunication administration and a recognized operating agency. INTELLECTUAL PROPERTY RIGHTS ITU draws attention 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 evidenc
14、e, 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 received notice of intellectual property, protected by patents, which may
15、be required to implement this Recommendation. However, implementors are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database. O ITU 2002 All rights reserved. No part of this publication may be reproduced or utilized in any f
16、orm or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from ITU. 11 ITU-T G.774 (02/2001) CONTENTS I Scope Page 1 2 3 4 5 5.1 5.2 6 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 6.10 6.11 6.12 6.13 6.14 6.15 6.16 6.17 6.18 6.19 6.20 6.21 6.22 6.23 6.
17、24 6.25 6.26 Re fer enc e s . Terms and Definition . Abbreviations SDH information model Overview . Requirements Object classes . Administrative Unit 4 Object Classes Administrative Unit Group Object Classes . Electrical SPI trail termination point object classes Multiplex Section Connection Termina
18、tion Point Object Classes . Multiplex Section Data Communications Channel Object Classes . Multiplex Section Ordenvire Object Classes Optical SDH Physical Interface Trail Termination Point Object Classes Regenerator Section Connection Termination Point Object Classes . Regenerator Section Data Commu
19、nications Channel Object Classes Regenerator Section Trail Termination Point Object Classes . Regenerator Section User Channel Object Classes . SDH Network Element Object Class . Tributary Unit 11 Object Classes Tributary Unit 12 Object Classes . Tributary Unit 2 Object Classes Administrative Unit 3
20、 Object Classes . Indirect Adaptor Object Classes Multiplex Section Trail Termination Point Object Classes . Regenerator Section Orderwire Object Classes . . . Tributary Unit 3 Object Classes Tributary Unit Group 2 Object Classes Tributary Unit Group 3 Object Class Virtual Container 11 Object Classe
21、s Virtual Container 12 Object Classes Virtual Container 2 Object Classes . Virtual Container 3 Object Classes . ITU-T G.774 (02/2001) 1 3 3 5 6 7 8 9 10 10 11 11 12 13 14 15 15 16 17 18 18 19 20 20 21 22 23 24 24 25 . 111 6.27 6.28 7 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 7.10 7.11 7.12 7.13 7.14 8 8.1
22、 8.2 8.3 8.4 8.5 8.6 8.7 8.8 8.9 8.10 8.11 8.12 8.13 8.14 8.15 8.16 8.17 iv Virtual Container 4 Object Classes VC-n User Channel Object Classes . Packages . electrical SPIPackage . . msCTPPackage . msTTPPackage . optical SPIPackage rsCTPPackage rsTTPPackage . . trailTraceSinkPackage . tu-nSinkPackag
23、e . . vcll-2SinkPackageRl . vc3 -4BidirectionalPackageRl vc3-4SinkPackageRl vc3-4SourcePackageRl trailTraceSourcePackage . vcl 1 -2BidirectionalPackageRl Attributes . . AU-3 Identification . AU-4 Identification . AUG Identification . C2 Signal Label Expected . C2 Signal Label Receive . C2 Signal Lab
24、el Send Electrical SDH Physical Interface Trail Termination Point Identification . Excessive Bit Error Ratio Maintenance Inhibit J1 Path Trace Expected . . J1 Path Trace Receive . J1 Path Trace Send Multiplex Section Connection Termination Point Identification MS Data Communications Channel CTP Iden
25、tification Multiplex Section Ordenvire Identification . . . Multiplex Section Trail Termination Point Identification . Optical Reach Optical SDH Physical Interface Trail Termination Point Identification ITU-T G.774 (02/2001) Page 26 27 28 28 28 28 28 29 29 29 29 29 30 30 30 30 31 31 31 32 32 32 32 3
26、3 33 33 33 34 34 34 34 35 35 35 35 8.18 8.19 8.20 8.21 8.22 8.23 8.24 8.25 8.26 8.27 8.28 8.29 8.30 8.3 1 8.32 8.33 8.34 8.35 8.36 8.37 8.38 8.39 8.40 8.41 8.42 8.43 8.44 8.45 9 9.1 9.2 9.3 9.4 9.5 9.6 9.7 Optical WaveLength Pointer Source Type . Regenerator Section Connection Termination Point Iden
27、tification . Regenerator Section Data Communications Channel CTP Identification Regenerator Section Ordenvire Identification Regenerator Section Trail Termination Point Identification . Regenerator Section User Channel Identification . Signal Degrade Threshold . Trail Trace Expected . Pointer Sink T
28、ype . . . . Trail Trace Receive . Trail Trace Send . Tributary Unit 1 1 Connection Termination Point Identification . Tributary Unit 12 Connection Termination Point Identification . Tributary Unit 2 Connection Termination Point Identification . Tributary Unit 3 Connection Termination Point Identific
29、ation . TUG-2 Identification . . TUG-3 Identification . . V5 Signal Label Expected V5 Signal Label Receive . V5 Signal Label Send . Virtual Container 1 1 Trail Termination Point Identification . Virtual Container 12 Trail Termination Point Identification . . Virtual Container 2 Trail Termination Poi
30、nt Identification Virtual Container 3 Trail Termination Point Identification Virtual Container 4 Trail Termination Point Identification . VC-n User Channel Identification . Name Bindings au3 CTP . au4CTP . aug . . . electricalSPITTP . msCTP msDatacomCTP . msOrdenvireCTP ITU-T G.774 (02/2001) Page 36
31、 36 36 36 36 37 37 37 37 38 38 38 38 39 39 39 39 40 40 40 40 41 41 41 41 42 42 42 42 44 45 46 47 48 49 50 V 9.8 9.9 9.10 9.11 9.12 9.13 9.14 9.15 9.16 9.17 9.18 9.19 9.20 9.21 9.22 9.23 9.24 9.25 9.26 10 11 11.1 11.2 11.3 msTTP . optical SPITTP . . rsCTP rsDatacomCTP . rsOrdenvireCTP . rsTTP rsUserC
32、hannelCTP . tu 1 1 CTP . tu 12CTP tu2CTP . tu3 CTP . . . tug2 tug3 . vcl ITTP . vc3TTP . . . vc4TTP . . . vcnUserChannelCTP . Supporting ASN.l . Object relations . Syntax 1 1.1.1 Subordination rule templates . . 11.1.2 Constraint rule templates Connectivity pointer constraints Naming constraints Ann
33、ex A . Entity relationship diagrams . vi ITU-T G.774 (02/2001) Page 51 51 52 54 55 56 57 58 59 60 61 62 64 64 65 65 66 67 67 69 70 70 71 72 73 84 93 ITU-T Recommendation G.774 Synchronous digital hierarchy (SDH) - Management information model for the network element view 1 Scope This Recommendation
34、provides an information model for the synchronous digital hierarchy (SDH). It identifies the telecommunications management network (TMN) object classes required for the management of SDH network elements. These objects are relevant to information exchanged across standardized interfaces defined in I
35、TU-T M.3010 TMN architecture. The managed object classes in this Recommendation are specialized from the generic managed object classes defined in ITU-T M.3 1 O0 generic network information model. This Recommendation applies to SDH network elements and those systems in the TMN that manage SDH networ
36、k elements. Functional capabilities of SDH multiplex equipment are given in ITU-T G.783, and aspects of the management of SDH equipment are provided in ITU-T G.784. This Recommendation provides the management information required for use with the protocols specified in ITU-T G.784. The new objects d
37、efined in this Recommendation supersede those defined in the previous version of the Recommendation (i.e. the 1992 version). For each object class, attribute, action, notification, parameter defined in this version of the Recommendation, it shall be indicated what the impacts are upon the existing I
38、TU-T G.774 (1992). Structure of this Recommendation Clause 5 provides an overview of the SDH information model. Clauses 6 to 9 describe the information model using the notation mechanisms defined in ITU-T X.722 Guidelines for the definition of managed Objects. Section 10 contains the syntax definiti
39、ons of the information carried in the protocol using Abstract Syntax Notation One (ASN. 1) defined in ITU-T X.680-X.683. The relationships between the SDH managed object classes contained in this Recommendation are defined in clause 11. Diagrams illustrating the construction of the SDH model are pro
40、vided in Annex A. 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 Recommendations and other references are
41、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 published. - ITU-T G.707lY. 1322 (Z
42、OOO), Network node interface for the synchronous digital hierarchy (SDH) . ITU-T G.773 (1 993), Protocol suites for Q-interfaces for management of transmission systems. ITU-T G. 774.1 (200 i), Synchronous digital hierarchy (SDH) - Bidirectional performance monitoring for the network element view. IT
43、U-T G.774.3 (200 i), Synchronous digital hierarchy (SDH) - Management of multiplex- section protection for the network element view. - - - ITU-T G.774 (02/2001) 1 2 ITU-T G.783 (2000), Characteristics of synchronous digital hierarchy (SDH) equipment functional blocks. ITU-T G.784 (1 999), Synchronou
44、s digital hierarchy (SDH) management. ITU-T G.803 (2000), Architecture of transport networks based on the synchronous digital hierarchy (SDH). ITU-T G.83 1 (2000), Management capabilities of transport networks based on the synchronous digital hierarchy (SDH) . ITU-T G.958 (1994), Digital line Vstems
45、 based on the synchronous digital hierarchy for use on opticalfibre cables. ITU-T M.60 (1 993), Maintenance terminology and definitions. ITU-T M.2120 (2000), PDH path, section and transmission system and SDH path and multiplex section fault detection and localization procedures. ITU-T M.3 O 1 O (200
46、0), Principles for a telecommunications management network. ITU-T M.3 O 13 (2000), Considerations for a telecommunications management network. ITU-T M.3 1 O0 (1 999, Generic network information model. ITU-T Q.8 11 (1997), Lower layer protocolprofiles for the Q3 andxinterfaces. ITU-T Q.8 12 (1997), U
47、pper layerprotocolprofrles for the Q3 andxinterfaces. ITU-T 4.822 (1994), Stage I, Stage 2 and Stage 3 description for the Q3-interface - Performance management. ITU-T X.680 to X.683 (1997), Information technology - Abstract Syntax Notation One (ASN. I). ITU-T X.70 1 (1 997), Information technology
48、- Open Systems Interconnection - Systems management overview. ITU-T X.7 1 O (1 997), Information technology - Open Systems Interconnection - Common management information service. ITU-T X.7 1 1 (1 997), Information technology - Open Systems Interconnection - Common management information protocol: S
49、pecification. ITU-T X.720 (1 992), Information technology - Open Systems Interconnection - Structure of Management Information: Management information model, plus Amd. 1 (1 995) and Cor. 1 (1994). ITU-T X.72 1 (1 992), Information technology - Open Systems Interconnection - Structure of management information: Defrnition of management information, plus Cor. 1 (1 994), Cor.2 (1996), Cor.3 (1998) and Cor.4 (2000). ITU-T X.722 (1 992), Information technology - Open Systems Interconnection - Structure of management information: Guidelines for the definition of managed objects, plus Amd
