1、STD-ITU-T RECMN G.853.b-ENGL 1999 48b259L Obb0305 070 INTERNATIONAL TELECOMMUNICATION UNION ITU=T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU G.853.6 (03/99) SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS Digital transmission systems - Digital networks - Management of tra
2、nsport network Information viewpoint for trail management ITU-T Recommendation G.853.6 (Previously CCITT Recommendation) STD-ITU-T RECMN G*B53=b-ENGL 1999 - 48b2591 Obb030b TO7 ITU-T G-SERIES RECOMMENDATIONS TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS INTERNATIONAL TELEPHONE CONNECT
3、IONS AND CIRCUITS INTERNATIONAL ANALOGUE CARRIER SYSTEM TRANSMISSION SYSTEMS INDIVIDUAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE SYSTEMS ON METALLIC LINES G. 1 OO-G. 199 GENERAL CHARACTERISTICS COMMON TO ALL ANALOGUE CARRIER- G.200-G.299 G.300-G.399 GENERAL CHARACTERISTICS OF INTERNATIONAL
4、 CARRIER TELEPHONE WITH METALLIC LINES SYSTEMS ON RADIO-RELAY OR SATELLITE LINKS AND INTERCONNECTION COORDINATION OF RADIOTELEPHONY AND LINE TELEPHONY TESTING EQUIPMENTS TRANSMISSION MEDIA CHARACTERISTICS DIGITAL TRANSMISSION SYSTEMS TERMINAL EQUIPMENTS DIGITAL NETWORKS General aspects Design object
5、ives for digital networks Quality and availability targets Network capabilities and functions SDH network characteristics G.400-G.449 G.450-G.499 G.600-G.699 G.700-G.799 G.800-G.899 G.800-G.809 G.810-G.819 G.820-G.829 G.830-G.839 G.840-G.849 I) Management of transport network 6.8504.859 II SDH radio
6、 and satellite systems integration G.860-G.869 Optical transport networks DIGITAL SECTIONS AND DIGITAL LINE SYSTEM G.870-G.879 G.900-G.999 For further details, please refer to ITU-T List of Recommendations. STD=ITU-T RECMM G*853.b-ENGL 3999 4862593 0660307 943 ITU-T RECOMMENDATION G.853.6 INFORMATIO
7、N VIEWPOINT FOR TRAIL MANAGEMENT Summary The trail management service provides functionality for: e creationdeletion of trail termination points; associatioddisassociation of trail termination points with/from subnetworks or access set-uphelease and modification of trails between a specified set of
8、endpoints and/or access e groups; groups at the boundary of a layer network. e Source ITU-T Recommendation G.853.6 was prepared by ITU-T Study Group 4 (1997-2000) and was approved under the WTSC Resolution No. 1 procedure on the 26th of March 1999. Recommendation G.853.6 (03/99) 1 FOREWORD ITU (Inte
9、rnational Telecommunication Union) is the United Nations Specialized Agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of the ITU. The ITU-T is responsible for studying technical, operating and tariff questions and issuing Recomm
10、endations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Conference (WTSC), which meets every four years, establishes the topics for study by the ITU-T Study Groups which, in their turn, produce Recommendations on these topic
11、s. The approval of Recommendations by the Members of the ITU-T is covered by the procedure laid down in WTSC Resolution No. 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 Recomm
12、endation the term recognized operating agency (ROA) includes any individual, company, corporation or governmental organization that operates a public correspondence service. The terms Administration, ROA and public correspondence are defined in the Constitution of the ITU (Geneva, 1992). INTELLECTUA
13、L PROPERTY RIGHTS The ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. The ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights,
14、whether asserted by IT members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, the ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementors
15、 are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database. O ITU 1999 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopyi
16、ng and microfilm, without permission in writing from the ITU. 11 Recommendation G.853.6 (03199) 1 2 3 4 5 6 6.1 6.2 7 8 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 8.9 9 9.1 9.2 10 11 12 CONTENTS Scope References Definitions Abbreviations . Conventions Class diagrams UML class diagram representing relationships
17、 between classes UML class diagram representing the inheritance hierarchy . Information object class definitions . Label references tmAccessGroup tmLayerNetworkDomain tmNetworkTTP . tmsubnetwork . tmSubnetworkConnection tmSubnetworkTP tmTrail tmTraffcDescriptor tmTrailServiceCharacteristics Informat
18、ion relationship definitions . tmTrailHasImmediateTrafficDescriptor . tmTrailHasTSC . Static Schemas Dynamic Schemas . Attributes Recommendation G.853.6 (03199) Page 1 1 1 1 2 2 2 3 4 4 4 4 5 5 5 6 6 6 7 7 7 7 8 8 8 . 111 Recommendation G.853.6 INFORMATION VIEWPOINT FOR TRAIL MANAGEMENT (Geneva, 199
19、9) 1 Scope This information viewpoint specification is related to the trail management enterprise specification defined in Recommendation G.852.6. 2 References The following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitute provisions of
20、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 therefore encouraged to investigate the possibility of applying the most recent edition of the Recommendations an
21、d other references listed below. A list of the currently valid ITU-T Recommendations is regularly published. i ITU-T Recommendation G.85 1.1 (1 996), Management of the transport network - Application of the RM-ODP framework. 2 ITU-T Recommendation G.853.1 (1999), Common elements of the information v
22、iewpoint for the management of a transport network. 3 ITU-T Recommendation G.853.2 (1996), Subnetwork connection management information viewpoint. 4 ITU-T Recommendation G.852.6 (1 999), Enterprise viewpoint for trail management. 5 ITU-T Recommendation G.854.6 (1 999), Computational viewpointfor tra
23、il management. 3 Definitions None. 4 Abbreviations This Recommendation uses the following abbreviations: Id Identifier imp imported inh inherited RM-ODP tm Trail Management TTP Trail Termination Point UML Unified Modelling Language Reference Model for Open Distributed Processing Recommendation 6.853
24、.6 (03/99) 1 STDsITU-T RECMN G.853.b-ENGL 3799 = 4862591 0660333 374 m 5 Conventions For further study. 6 Class diagrams 6.1 UML class diagram representing relationships between classes trnLayerNetworkDornain a-endSNTP or a-endNTTP or trnSu bnetworkTP subnetwork TPIs trnNetworkTP abstractionSNTP ext
25、remity (lN) (ll) tm TrailHakimmediate TrafficDewiptor ImTrailfias TSC I immediateTraEc QualifierTSC (ll) I 1 (1-1) 1 DescriptorTrail i trnTrailServiceCharaeteristics tmTraficDescriptor TO410030-98 Figure VG.853.6 - UML class diagram representing relationships between classes 2 Recommendation G.853.6
26、 (03/99) G.853.1:networkInformationTop G.853.2:serviceCharacteristics resourceId T T I G.853.1: IayerNetworkDomainl G.853.1:subnetwork signalldentification tmsubnetwork t pointDirectionality G.853.1:accessGroup t I I tmSubnetworkTP 1 T I tmAccessGroup I directionaii I_ II I T T T T userlabel (imp) T
27、41C40-98 l II I Figure WG.853.6 - Information object class inheritance diagram Recommendation G.853.6 (03/99) 3 STD-ITU-T RECMN G-853.b-ENGL 1797 m 4862571 bhO313 147 9 Full label reference 7 Label references Local label reference accessGroup 1ayerNetworkDomain I networkTTP subnetwork subnetworkConn
28、ection subnetworkTP trail accessGroupIsMadeOfNetworkTTPs 1ayerNehvorkDornainIsMadeOf subnetworkIsDelimitedI3 y subnetworkConnectionIsTerminatedl3 y PointToPoint 1 - I I serviceCharacteristics signalIdentification userlabel subnehvorkTPIsRelatedToExtremity DEFINITION “This object class is derived fio
29、m .“ ATTRIBUTE - none additional RELATIONSHIP layerNetworkDomainIsMadeOfi 8.2 tmLayerNetworkDomain DEFINITION “This object class is derived fiom .“ 4 Recommendation G.853.6 (03199) STDmITU-T RECMN G*853.b-ENGL 1799 48bS572 Obb0324 083 ATTRIBUTE - none additional RELATIONSHIP .“ ATTRIBUTE “ This attr
30、ibute is imported from G.853.1 and is used as a user friendly label for the networkTTP.“ RELATIONSHIP 4ayerNetworkDomainIsMadeOD 8.4 tmsubnetwork DEFINITION “This object class is derived from .“ ATTRIBUTE - none additional RELATIONSHIP -4ayerNetworkDomainIsMadeOB 8.5 tmSubnetworkConnection DEFINITIO
31、N “This object class is derived from .“ ATTRIBUTE - none additional RELATIONSHIP - DEFINITION “This object class is derived from .“ ATTRIBUTE - none additional RELATIONSHIP DEFINITION “This object class is derived from .“ ATTRIBUTE “ This attribute is imported from G.853.1 and is used as a user-frie
32、ndly name for the trail.“ RELATIONSHIP 4ayerNetworkDomainIsMadeOP 8.8 tmTrafficDescriptor DEFINITION “This object class reflects all the characteristics associated with the requested transport service. This class be refined based on technology-dependent characteristics.“ will ATTRIBUTE “This attribu
33、te is imported from G.853.1 and it specifies the signal format of the resources whose traffic descriptors are determined by the information object. The specific format values will be defined in technology-specific extensions.“ RELATIONSHIP 6 Recommendation G.853.6 (03199) 8.9 tmTrailServiceCharacter
34、istics DEFINITION “This object class is derived from . This object class will be refined due to the technological-dependent characteristics.“ ATTRIBUTE “This attribute is imported from G.853.1 and it specifies the signal format of the resources whose service characteristics are determined by the tmT
35、railServiceCharacteristics information object. The specific format values will be defined in technology-specific extensions.“ RELATIONSHIP 9 Information relationship definitions 9.1 tmTrailHasImmediateTrafficDescriptor DEFINITION “This information relationship represents the relationship which exist
36、s between a trail and a traffic descriptor.“ ROLE trailTD “Played by instances of the information object class and subclasses.“ immediateTraffcDescriptorTrai1 “Played by an instance of the object class. INVARIANT inv-1 inv-2 “Several objects playing the trailTD role may be involved in the relationsh
37、ip.“ “Only one object playing the imrnediateTrafficDescriptorTrai1 role may be involved in the relationship.“ 9.2 tmTrailHasTSC COMMUNITY: trail management, ACTION: set up point-to-point trail, ACTIONPOLICY: routingConstraints DEFINITION “The tmTrailHasTSC relationship describes the association betw
38、een a trail and the related quality of transport service characteristics.“ ROLE transportQualifiedTrai1 transportQualifierTSC “Played by instances of the information object class and subclasses.“ “Played by an instance of the object class.“ Recommendation G.853.6 (03/99) 7 INVARIANT inv-1 inv2 “Seve
39、ral objects playing the ansportQualifiedTrai1 role may be involved in the relationship.“ “Only one object playing the transportQualifierTSC role may be involved in the relationship.“ 10 Static Schemas None. 11 Dynamic Schemas None. 12 Attributes None additional. 8 Recommendation G.853.6 (03/99) erie
40、s A eries B eries C eries D eries E leries F beries G leries H ieries I ieries J ;cries K ;cries L Series M Series N Series O Series P Series Q Series R Series S Series T Series U Series V Series X Series Y Series Z ITU-T RECOMMENDATIONS SERIES Organization of the work of the ITU-T Means of expressi
41、on: definitions, symbols, classification General telecommunication statistics General tariff principles Overall network operation, telephone service, service operation and human factors Non-telephone telecommunication services Transmission systems and media, digital systems and networks Audiovisual
42、and multimedia systems Integrated services digital network Transmission of television, sound programme and other multimedia signals Protection against interference Construction, installation and protection of cables and other elements of outside plant TMN and network maintenance: international trans
43、mission systems, telephone circuits telegraphy, facsimile and leased circuits Maintenance: international sound programme and television transmission circuits Specifications of measuring equipment Telephone transmission quality, telephone installations, local line networks Switching and signalling Te
44、legraph transmission Telegraph services terminal equipment Terminals for telematic services Telegraph switching Data communication over the telephone network Data networks and open system communications Global information infrastructure and Internet protocol aspects Languages and general software aspects for telecommunication systems Printed in Switzerland Geneva, 1999
