ITU-T G 854 3-1999 Computational Viewpoint for Topology Management - Series G Transmission Systems and Media Digital Systems and Networks Digital Transmission Systems - Digital Nety .pdf

1、STD-ITU-T RECMN C-854.3-ENGL 1939 48b2591 Obh0319 bb5 INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU G.854.3 (03/99) SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS Digital transmission systems - Digital networks - Management of tra

2、nsport network Computational viewpoint for topology management ITU-T Recommendation G.854.3 (Previously CCITT Recommendation) STDmITU-T RECMN G*Sgm3-ENGL 1999 m 4862591 Ob60320 387 ITU-T G-SERIES RECOMMENDATIONS TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS INTERNATIONAL TELEPHONE CON

3、NECTIONS AND CIRCUITS INTERNA TIONAL ANALOGUE CARRIER SYSTEM TRANSMISSION SYSTEMS INDIVIDUAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE SYSTEMS ON METALLIC LINES GENERAL CHARACTERISTICS COMMON TO ALL ANALOGUE CARRIER- GENERAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE WITH METALLIC L

4、INES SYSTEMS ON RADIO-RELAY OR SATELLITE LINKS AND INTERCONNECTION COORDINATION OF RADIOTELEPHONY AND LINE TELEPHONY TES TING EQUIPMEN TS TRANSMISSION MEDIA CHARACTERIS TICS DIGITAL TRANS MISSION SYSTEMS TERMINAL EQUIPMENTS DIGITAL NETWORKS General aspects Design objectives for digital networks Qual

5、ity and availability targets Network capabilities and functions SDH network characteristics G. 100-G. 199 G.200-G.299 G.300-G.399 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. 8 I 0-G.8 1 9 G. 820-G.829 G.830-G.839 G. 840-G. 849 11 Management of transport network G.8504.

6、859 SDH radio and satellite systems integration Optical transport networks DIGITAL SECTIONS AND DIGITAL LINE SYSTEM G. 860-G ,869 G. 870-G. 879 G.900-G.999 - For further details, please refer to ITU-T List of Recommendations. STD-ITU-T RECMN G.854.3-ENGL 3999 4862591 Ob60321 233 m ITU-T RECOMMENDATI

7、ON G.854.3 COMPUTATIONAL VIEWPOINT FOR TOPOLOGY MANAGEMENT Summary The topology management community is used to managing the topology of a layer network domain and the relationships between the resources of the layer network domain being managed. The service provided by the community allows for the

8、creation and deletion of the following resources inside a layer network domain: subnetwork, link, topological link, link end, topological link end and access group. The service also provides a set of reporting actions to advise potential notification receivers of creation and deletion of resources i

9、n the community. The service is available between one single caller and one single provider. The partitioning of subnetworks and links is not addressed in this community. Enterprise community actions covered by this specification: create access group; delete access group; create link; delete link; c

10、reate link end; delete link end; create subnetwork; delete subnetwork; create topological link; delete topological link; create topological link end; delete topological link end; report access group creation; report access group deletion; report link creation; report link deletion; report link end c

11、reation; report link end deletion; report subnetwork creation; report subnetwork deletion; report topological link creation; report topological link deletion; report topological link end creation; report topological link end deletion. Source ITU-T Recommendation G.854.3 was prepared by ITU-T Study G

12、roup 4 (1997-2000) and was approved under the WTSC Resolution No. 1 procedure on the 26th of March 1999. i Recommendation 6.854.3 (03/99) FOREWORD ITU (International Telecommunication Union) is the United Nations Specialized Agency in the field of telecommunications. The ITU Telecommunication Standa

13、rdization Sector (ITU-T) is a permanent organ of the ITU. The 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 Conference (

14、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 topics. 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

15、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 term recognized operating agency (ROA) includes any individual, company, corporation or governmental organization that operates a p

16、ublic correspondence service. The terms Administration, ROA and public correspondence are defined in the Constitution of the ITU (Geneva, 1992). INTELLECTUAL PROPERTY RIGHTS The ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a

17、 claimed Intellectual Property Right. The 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,

18、the ITU had not received notice of intellectual property, protected by patents, which may 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 19

19、99 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the ITU. *. 11 Recommendation G.854.3 (03199) STD-ITU-T RECMN Gm54-3-ENGL 1999 = 4862591 O

20、hb0323 09b 111 CONTENTS Page 1 Scope 2 References 3 4 5 6 7 7.1 7.2 7.3 7.4 Definitions Abbreviations . Conventions Label references Interfaces Query interfaces Operational interfaces . 7.2.1 Common resource interface . 7.2.2 Topology resources provisioning interface . Report interfaces . Topology r

21、esources reporting interface . 7.3.1 7.3.2 ASN . 1 supporting productions . Common report resourceId change interface 1 1 1 1 2 2 3 3 6 6 7 20 20 21 30 . Recommendation G.854.3 (03/99) 111 Recommendation G.854.3 COMPUTATIONAL VIEWPOINT FOR TOPOLOGY MANAGEMENT (Geneva, 1999) 1 Scope This computationa

22、l viewpoint specification is related to the topology management enterprise specification defined in Recommendation G.852.3 and the topology management information specification defined in Recommendation G.853.3. 2 References The following ITU-T Recommendations and other references contain provisions

23、 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 therefore encouraged to investigate the possibil

24、ity 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. i ITU-T Recommendation G.85 1.1 (1 996), Management of the transport network - Application of the RM-ODPJi.amework. 2 ITU-T Re

25、commendation G.853.1 (1999), Common elements of the information viewpoint for the management of a transport network. 3 ITU-T Recommendation G. 852.3 (1 999), Enterprise viewpoint fort topology management. 4 ITU-T Recommendation G.853.3 (1 999), Information viewpoint for topology management. 3 Defini

26、tions None. 4 Abbreviations This Recommendation uses the following abbreviations: AG Access Group ASN.l Abstract Syntax Notation One CTP Connection Termination Point Id Identifier Ifce Interface inv invariant ITU International Telecommunication Union layerND layer Network Domain LE Link End LND Laye

27、r Network Domain Recommendation G.854.3 (03/99) 1 NTTP RM-ODP SN SNC SNTP TL TLE topman TP TTP Full label reference Network Trail Termination Point Reference Model for Open Distributed Processing Subnetwork Subnetwork Connection Subnetwork Termination Point Topological Link Topological Link End topo

28、logy management Termination Point Trail Termination Point Local label reference linkconnection networkCTP 5 Conventions In order to increase the readability of the behaviour in the operations: parameters are written in bold; e elements defined in the information specification are written in italic.

29、6 Label references topmanAccessGroup topmanLayerNetworkDomain I I subnetworkconnection I topmanlink topmanlinkEnd topmanNetworkTTP topmanSubnetwork topmanSubnetworkTP topmanTopologicalLink pointDirectionality resourceId signalIdentification topologicalEndDirection I topmanTopologicalLinkEnd I I 1ink

30、Directionality I userlabel accessGroupIsMadeOfNetworkTTPs 2 Recommendation G.854.3 (03/99) Full label reference Local label reference 1ayerNetworkDomainIsMadeOf linkBinds 1inkConnectionIsTerminatedBy Topological Entities IinkEndHasNetworkCTPs 1inkEndIsBoundTo IinkHasLinkConnections I Full ASN.l prod

31、uction reference I Local label reference I subnetw orkHasSubnetwork Connections subnetworkIsDelimitedBy subnetworkTPIsRrelatedToExtremity topologicalLinkEndIsSupportedBy NetworkTTP topoIogicalLinkIsSupportedByTrai1 7 Interfaces This specification does not define operations which change the userlabel

32、 of the resources or report this change to the notification receiver because they do not change the state of the system. Their exact signature will be developed as part of the engineering viewpoint, with the Concerned technology. 7.1 Query interfaces This specification refers to interfaces that allo

33、w get access to identification and properties of resources involved in the “topology management“ community. As the invocation of contained operations do not modi any state, there is no interest to develop them explicitly. Their exact signature will be developed as part of the engineering viewpoint,

34、with the concerned technology. These interfaces are listed in the following table with the information they allow access to. SimpleNameType Graphicstring Recommendation G.854.3 (03/99) 3 STDmITU-T RECMN G.854.3-ENGL 1999 Information object = 4Bb2591 Ob60327 731 1 signaIIdentifkat ion topologicalEndD

35、irection userLabel accessGroupIsMadeOfNetworkTTPs, ROLE: 1ementTTD :linkBinds, ROLE: transferCapacityLink :layerNetworkDomainIsMadeOf, ROLE: ontainerLND Interface name IpmanAccessGroup 2ueryIfce opmanLay erNetwork IomainQuery Ifce opmanLinkEndQuery .fce topmanLinkQuery Ifce topmanNetworkTTP Query If

36、ce - :topmanLayerNetworkDomain :topmanLinkEnd Attributes and relationships :signalIdentificat ion :layerNetworkDomainIsMadeOf, ROLE: element :resourceId :signalIdentification :topologicalEndDirection :userLabel :layerNetworkDomainIsMadeOf, ROLE: ;ontainerLND :linkEndIsBoundTo, ROLE: topologicalEntit

37、y =linkEndHasNetworkCTPs, ROLE: elementCTP - :resourceId :signalIdentification 4 Recommendation G.854.3 (03199) STD-ITU-T RECMN G-BSY.3-ENGL 1999 Interface name )pmanSubnetwork luery Ifce DpmanSubnetworkTP 2ueryIfce :opmanTopological LinkEndQuery Ifce topmanTopologica1 LinkQuery Ifce Information obj

38、ect :topmansubnetwork :toprnanSubnetworkTP m 4b2591 0660328 678 Attributes and relationships :resourceId :signalIdentification :userLabel :iinkBinds, ROLE: transferCapacityLink :subnetworkIsDelimitedBy, ROLE: elementSNTP :linkEndIsBoundTo, ROLE: transferCapacityLE :subnetworkHasSubnetworkConnections

39、, ROLE: :lementSNC :linkConnectionIsTerminatedByTopological htities, ROLE: transportEntityLC :layerNetworkDomainIsMadeOf, ROLE: :ontainerLND :resourceId :signaIIdentifkation :pointDirectionality :subnetworkIsDelimitedBy, ROLE: containersNB :subnetworkTPIsRelatedToExtremity , ROLE: :xtremity 4ayerNet

40、workDomainIsMadeOf, ROLE: :ontainerLND Recommendation 6.854.3 (03/99) 5 7.2 Operational interfaces 7.2.1 Common resource interface The common resource interface provides functionality for changing the resource identifier of the resources by using the operation “change resource identifier“. It satisf

41、ies the enterprise requirements stated in . COMPUTATIONAL-INTERFACE commonResourcelfce OPERATION ; 7.2.1.1 Change resource identifier OPERATION changeResourceId INPUTPARAMETERS IayerND: LayerNetworkDomainId := TopmanLayerNetworkDomainQueryIfce; involvedResource: ResourceChoice newResourceIdentifier:

42、 UserIdentifier := SimpleNameType; OUTPUT-PARAMETERS agreedResourceIdentifier: UserIdentifier := SimpleNameType; RAISED-EXCEPTIONS invalidResource: NULL; newResourceIdentifierNotUnique: newResourceIdentifier; failureToChangeId: NULL; BEHAVIOUR SEMIFORMAL P ARAMETER-MATCHING IayerND: ; involvedResour

43、ce: ; newResourceIdentifier: ; agreedResourceldentifier: ; PRE-CONDITION S inv-existinglnvolvedResource “invoivedResource shall refer to element in the same relationship where iayerND refers to containerlND.“ inv-uniqueResourceId “newResourceIdentifier must not be equal to of the resource referred t

44、o by invoivedResource has to be equal to newResourceIdentifier and agreedResourceIdentifier.“; EXCEPTIONS IF PRE-CONDITION invexistingInvolvedResource NOT-VERIFIED RAISEEXCEPTION IF PRE-CONDITION inv-uniqueResourceld NOT-VERIFIED RAISE-EXCEPTION invalidResource; newResourceIdentifierNotUnique; 6 Rec

45、ommendation G.854.3 (03/99) STDaITU-T RECMN G-854.3-ENGL 1 = 4862571 Obb0330 22b I IF POST-CONDITION inv-idchanged NOT-VERIFIED RAISEEXCEPTION failureToChangeId; 7.2.2 Topology resources provisioning interface The Topology Resources Provisioning Interface provides functionality for the provisioning

46、of the resources defined in . COMPUTATIONAL-INTERFACE topology ResourcesProvisioningIfce OPERATION ; ; ; ; ; ; ; ; ; ; ; ; 7.2.2.1 Create access group OPERATION createAccessGroup r”PUTPAFL4METERS IayerND: LayerNetworkDomainId; supplieduserldentifier: UserIdentifier; supplieduserlabel: Graphicstring;

47、 suppliedDirection: topologicalEnDirection; - zero length string or O implies none supplied. - zero length string implies none supplied. OUTPUT-PARAMETERS accessGroup: AccessGroupId; RAISEDEXCEPTIONS userIdentifierNotUnique: supplieduserldentifier; failureToSetUserIdentifier: NULL; failureToSetUserL

48、abe1: NULL; failureToCreateAccessGroup: NULL; failureToSetDirection: NULL; BEHAVIOUR SEMIFORMAL PARAMETER-MATCHING IayerND: ; suppliedUserIdentifier: ; suppliedUserLabe1: ; accessGroup: ; SuppliedDirection: ; PE-CONDITIONS inv-uniqueuser Identifier “The SuppliedUserIdentifier value shall not be equa

49、l to the value of any element in the relationship where the layerND refers to containerLND. ” Recommendation 6.854.3 (03/99) 7 STD-ITU-T RECMN G.854.3-ENGL 1999 4862591 0660331 1b2 m POST-CONDITIONS invagreedUserIdentifer “The value of referred to by accessGroup is equal to the suppliedUserIdentifier value, if it is supplied.“ inv-agreedUserLabe1 “The value of referred to by accessGroup is equal to the suppliedUserLabe1 value, if it is supplied.“ inv-existing AccessGroup “accesssGroup refers to element in the relationship where