1、INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU G.854.1 O (03199) SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS Digital transmission systems - Digital networks - Management of transport network Computational viewpoint for pre-provi
2、sioned link connection management ITU-T Recommendation G.854.1 O (Previously CCITT Recommendation) ITU-T G-SERIES RECOMMENDATIONS TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS INTERNATIONAL TELEPHONE CONNECTIONS AND CIRCUITS G.l OO-G. 199 INTERNATIONAL ANALOGUE CARRIER SYSTEM TRANSMIS
3、SION SYSTEMS SYSTEMS ON METALLIC LINES GENERAL CHARACTERISTICS COMMON TO ALL ANALOGUE CARRIER- G.200-G.299 INDIVIDUAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE G. 300-G . 399 GENERAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE WITH METALLIC LINES SYSTEMS ON RADIO-RELAY OR SATELLITE L
4、INKS AND INTERCONNECTION COORDINATION OF RADIOTELEPHONY AND LINE TELEPHONY TES TING EQUIPMENTS TRANSMISSION MEDIA CHARA C TERIS TICS DIG1 TAL TRANSMISSION SYSTEMS TERMINAL EQUIPMENTS DIGITAL NETWORKS General aspects Design objectives for digital networks Quality and availability targets Network capa
5、bilities and functions SDH network characteristics G.400-G.449 G.450-G.499 G.600-G.699 G.700-G.799 G.80C-G.899 G.800-G.809 G.810-G.819 G. 820-G. 829 G.830-G.839 G.840-G.849 11 Management of transport network G.8504.859 SDH radio and satellite systems integration Optical transport networks DIGITAL SE
6、CTIONS 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.854.10-ENGL L999 Lib2591i Ohb389 T9 m ITU-T RECOMMENDATION G.854.10 COMPUTATIONAL VIEWPOINT FOR PRE-PROVISIONED LINK CONNECTION MANAGEMENT
7、 Summary The pre-provisioned link connection management community is used to assign transport entities (link connections or connection termination points) to a caller and to control and update the available capacity of the linking entity (link or link end) that contains the transport entities. The a
8、vailable capacity of the linking entity contains all the unassigned transport entities. This community should be used in the case where transport entities have already been provisioned inside the linking entity using the pre-provisioned adaptation management service (See Recommendation G.853.8). The
9、 capability of having pre-provisioned transport entities is available in technologies such as SDH or WDM. Enterprise community actions covered by this specification: - COMMUNITY pre-provisioned linkconnection management; - assign transport entities; - de-assign transport entities; - report transport
10、 entities change. Source ITU-T Recommendation G.854.10 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.854.10 (03/99) 1 FOREWORD ITU (International Telecommunication Union) is the United Nations Sp
11、ecialized 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 Recommendations on them with a view to standardizing telecommunic
12、ations 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 topics. The approval of Recommendations by the Members of the IT
13、U-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 Recommendation the term recognized operating agency (ROA) include
14、s 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, I992). INTELLECTUAL PROPERTY RIGHTS The ITU draws attention to the possibilit
15、y 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, whether asserted by ITU members or others outside of the Re
16、commendation 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 are cautioned that this may not represent the latest info
17、rmation 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 photocopying and microfilm, without permission in writing from the I
18、TU. 11 Recommendation G.854.10 (03/99) Page 1 2 3 4 5 6 7 7.1 7.2 7.3 7.4 Scope References Definitions Abbreviations . Conventions Label references Interfaces Query interfaces Operational interfaces . 7.2.1 PLCM Link Connection Assignment Interface . 7.2.2 PLCM NetworkCTP Assignment Interface Report
19、 interfaces . 7.3.1 7.3.2 PLCM Reporting Arcview Interface . PLCM Reporting Pointview Interface . ASN . 1 supporting productions . Recommendation G.854.10 (03/99) 1 1 1 2 2 2 2 3 3 6 9 9 11 14 iii Recommendation G.854.10 COMPUTATIONAL VIEWPOINT FOR PRE-PROVISIONED LINK CONNECTION MANAGEMENT (Geneva,
20、 1999) 1 Scope This computational viewpoint specification is related to the pre-provisioned 1inkConnection management enterprise specification defined in Recommendation G.852.10 and the pre-provisioned 1inkConnection management information specification defined in Recommendation G.853.1 O. 2 Referen
21、ces 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 subject to revision; all us
22、ers 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. 11 ITU-T Recommendation G.85 1.1 (1996), Manage
23、ment of the transport network - Application of the RM-ODPJi.arnework. 2 ITU-T Recommendation G.853.1 (1999), Common elements of the information viewpoint for the management of a transport network. 3 ITU-T Recommendation G.852.10 (1999), Enterprise viewpoint for pre-provisioned link connection manage
24、ment. 4 ITU-T Recommendation G.853.1 O (1 999), Information viewpoint for pre-provisioned Zink connection management. 3 Definitions None. 4 Abbreviations This Recommendation uses the following abbreviations: ASN. 1 Abstract Syntax Notation One CTP Connection Termination Point Id Identifier Ifce Inte
25、rface inv invariant ITU International Telecommunication Union layerND layer Network Domain LC Link Connection Recommendation 6.854.10 (03/99) 1 STD-ITU-T RECMN G-BSY-LO-ENGL 1999 , m YBb2591 Obb0393 YOT m Full label reference LE Link End LND Layer Network Domain Pam pre-provisioned adaptation manage
26、ment plcm pre-provisioned link connection management RM-ODP Reference Model for Open Distributed Processing Local label reference plcmLayerNetworkDomain dcmLink 5 Conventions In order to increase the readability of the behaviour in the operations: parameters are written in bold; elements defined in
27、the information specification are written in italic. Full ASN.l production reference 6 Label references Local label reference I I plcmlinkconnection 1 I I plcmLinkEnd I 1- I plcmNetworkCTP IayerNetworkDomainlsMadeOf IinkHasLinkConnections I I 1inkEndHasNetworkCTPs I I 1 pamAvailableLinkCapacity I 1
28、I plcmCallerId I I I INTEGER I 7 Interfaces This specification do not define operations which change the userlabel of the resources or report this change to the notification receiver because they do not change the state of the system. There exact signature will be developed as part of the engineerin
29、g viewpoint specification with the concerned technology. 7.1 Query interfaces This specification refers to interfaces that allow get access identification and properties of resources involved in the “pre-provisioned 1inkConnection management“ community. As the invocation of contained operations do n
30、ot modi any state, there is no interest to develop them explicitly. Their exact signature will be developed as part of the engineering viewpoint, with the concerned technology. These interfaces are listed in the following table with the information they allow access to. 2 Recommendation G.854.10 (03
31、199) Interface name 3IcmLinkQueryIfce plcmLinkConnectionQueryIfce plcmLinkEndQueryIfce plcmNetworkCTPQuery Ifce Information object cplcmLayerNetworkDomain Attributes and relationships 7.2 Operational interfaces 7.2.1 The plcm link connection assignment interface provides functionality for assigning
32、link connections within links to callers. It satisfies the enterprise requirements stated in . PLCM Link Connection Assignment Interface COMPUTATIONAL-INTERFACE plcmAssignmentIfce OPERATION ; OPERATION ; 1 Recommendation 6.854.10 (03/99) 3 STD-ITU-T RECMN G.854.1O-ENGL 1999 m 48b259L Ob60395 282 7.2
33、.1.1 assign Link Connection on Link OPERATION assignLinkConnectionOnLink INPUTPARAMETERS IayerND: 1ayerNetworkDomainIfce : := PlcmLayerNetworkDomahQueryIfce requestingcaller: plcmCallerId involvedlink: PlcmLinkId requestedLinkConnections: PlcmRequestedLinkConnectionChoice; OUTPUT-PARAMETERS provided
34、LinkConnections: SetOfLinkConnections; RAISEDEXCEPTIONS 1inkAndLinkConnectionNotCompatible: involvedlink, invalidLinkConnection: linkconnection; notEnoughLinkConnections: numberofLC := INTEGER; IinkConnectionAlreadyAssigned: linkconnection; inconsistentSignalIdentification: NULL; inconsistentDirecti
35、onality : NULL; failureToSetLinkConnectionCallerld: NULL; failureToDecreaseCapacity: NULL; BEHAVIOUR SEMIFORMAL PARAMETER-MATCHING layerND: ; involvedlink: ; requestedLinkConnections ELEMENTS: ; providedLinkConnections ELEMENTS: ; linkconnection: ; PRECONDITIONS inv-1inkAndLinkConnectionCompatible “
36、involvedLink and requestedLinkConnections shall refer to element of the same -4ayerNetworkDomainIsMadeOfi relationship where layerND refers to containerLND.“ inv-existingRequestedLinkConnections “requestedLinkConnections refers to elementLC in a relationship where involvedlink refers to containerLin
37、k.“ - NOTE - The following invariant is only needed when the numberofLC choice is used for the reguestedLinkConnections by the caller. inv-requestedLinkConnections Available “the number of available linkConnections in of involvedlink has to be greater than or equal to the number of requested linkcon
38、nections referred to by requestedlin kconnections.“ inv-freeLinkConnections “ of referred to by requestedLinkConnections must be equal to NULL.“; 4 Recommendation G.854.10 (03/99) STD.ITU-T RECMN G-854-10-ENGL 2999 m 4862591 Obh039b 119 POST-CONDITIONS invacsignedLinkConnections “ referred to by req
39、uestedLinkConnections must be set to the identifier of the caller referred to by requestingCaller.” inv-capacityDecrease “ of that have been requested to be assigned.“; EXCEPTIONS IF PRE-CONDITION inv-1inkAndLinkConnectionCompatible NOT-VERIFIED RAISE-EXCEPTION IF PRE-CONDITION inv-existingRequested
40、LinkConnections NOT-VERIFIED RAISE-EXCEPTION IF PRE-CONDITION inv-requestedLinkConnectionsAvailable NOT-VERIFIED RAISE-EXCEPTION IF PRE-CONDITION inv-fieeLinkConnections NOT-VERIFIED RAISEEXCEPTION IF PE-CONDITION NOT-VERIFIED RAISE-EXCEPTION inconsistent SignalIdentification; inv directionality NOT
41、-VERIFIED RAISE-EXCEPTION inconsistentDirectionality ; failureToSetLinkConnectionCallerId; failureToDecreaseCapacity ; 7.2.1.2 de-assign Link Connection on Link OPERATION de-assignLinkConnectionOnLink INPUT-PARAMETERS IayerND: 1ayerNetworkDomainIfce := PlcmLayerNetworkDomainQuery Ifce requestingcall
42、er: plcmCallerId involvedlink: PlcmLinkId involvedLinkConnections: SetOfLinkConnections; OUTPUT-PARAMETERS - none RAISED-EXCEPTIONS 1inkAndLinkConnectionNotCompatible: involvedlink; invalidLinkConnection: linkconnection; notAssignedToCaller: linkconnection; failureToDe-assignLiConnection: NULL; fail
43、ureToIncreaseCapacity: NULL; BEHAVIOUR SEMI-FORMAL PARAMETER-M ATCHING IayerND: ; requectingcaller: ; involvedlink: ; involvedLinkConnections ELEMENTS: ; IinkConnection: ; Recommendation 6.854.10 (03/99) 5 PE-CONDITIONS invlinkAndLinkConnectionCompatible “involvedLink and involvedLinkCoonections sha
44、ll refer to element of the same relationship where iayerND refers to containerLND.“ invexistingDe-assignedLinkConnections “involvedLinkConnections refers to elementLC in a relationship where involvedlink refers to contuinerLink.“ invcallerAssignedLinkConnections “ referred to by involvedLinkConnecti
45、ons must be equal to the identifier of requestingCaller.“ POST-CONDITIONS invde-assignedLinkConnections “ referred to by involvedLinkConnections is equal to NULL.“ invcapaciy Increase “ of referred to by involvedlink has been increased by the number (size of SET OF in involvedLinkConnections) of tha
46、t have been requested to be de-assigned.“; EXCEPTIONS IF PRE-CONDITION inv-1inkAndLinkConnectionCompatible NOT-VERIFIED RAI SEEXCEPTION IF PRE_CONDITION inv-existingDe-assignedLinkConnections NOT-VERIFIED RAISEEXCEPTION IF PRE CONDITION inv-CallerAssignedLinkConnections NOT-VERIFIED RAISEEXCEPTION I
47、F POST-CONDITION inv-de-assignedLinkConnections NOT-VERIFIED RAISE-EXCEPTION IF POST-CONDITION inv-capacity Increase NOT-VERIFIED RAISEEXCEPTION 1inkAndLinkConnectionNotCompatible; invalidLinkConnection; iotAssignedToCaller; failureToDe-assignLinkConnection; failureToIncreaseCapacity ; 2 7.2.2 PLCM
48、NetworkCTP Assignment Interface The plcm networkCTP assignment interface provides functionality for assigning network CTPs within link ends to callers. It satisfies the enterprise requirements stated in . COMPUTATIONAL-XNTERFACE plcmNetworkCTPAssignmentIfce OPERATION ; OPERATION ; 1 7.2.2.1 assign N
49、etworkCTP on LinkEnd OPERATION assignNetworkCTPOnLinkEnd INPUTPARAMETERS IayerND: IayerNetworkDomainIfce := PlcmLayerNetworkDomainQueryIfce requestingcaller: plcmCallerId involvedLinkEnd PlcmLinkEndId requestedNetworkCTPs: PlcmRequestedNetworkCTPChoice; 6 Recommendation G.854.10 (03199) OUTPUT-PARAMETERS providedNetworkCTPs: SetOfNetworkCTPs; RAI SEDEXCEPTI ON S 1inkEndAndNetworkCTPNotCompatible: involvedLinkEnd; invalidNetworkCTP: networkCTP; notEnoughNetworkCTPs: numberOfNetworkCTPs := INTEGER; networkCTPAlreadyAssigned: networkCTP; inconsistentSigna
