1、INTERNATIONAL TELECOMMUNICATION UNION ITU=T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU G.852.1 O (03/99) SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS Digital transmission systems - Digital networks - Management of transport network Enterprise viewpoint for pre-provisio
2、ned link connection management ITU-T Recommendation G.852.1 O (Previously CCITT Recommendation) ITU-T G-SERIES RECOMMENDATIONS TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS I INTERNATIONAL TELEPHONE CONNECTIONS AND CIRCUITS IN TERNA TIONAL A NA LOGUE CARRIER SYSTEM TRANSMISSION SYSTEM
3、S INDIVIDUAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE SYSTEMS ON METALLIC LINES GENERAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE WITH METALLIC LINES COORDINATION OF RADIOTELEPHONY AND LINE TELEPHONY TES TING EQUIPMEN TS TRANSMISSION MEDIA CHARACTERISTICS DIGITAL TRANSMISSION SYST
4、EMS TERMINAL EQUI PMENTS DIGITAL NETWORKS GENERAL CHARACTERISTICS COMMON TO ALL ANALOGUE CARRIER- SYSTEMS ON RADIO-RELAY OR SATELLITE LINKS AND INTERCONNECTION General aspects Design objectives for digital networks Quality and availability targets Network capabilities and functions SDH network chara
5、cteristics G.1 OO-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.810-G.819 G.820-G.829 G.8304.839 G ,840-G .849 11 Management of transport network G.850-G.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. ENTERPRISE VIEWPOINT FOR PRE-PROVISIONED LINK CONNECTION MANAGEMENT Summary The pre-provisioned link connection management community is used to assign transport en
7、tities (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 available capacity of the linking entity contains all the unassigned transport entities. This com
8、munity 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 G.85x.8 series of Recommendations). The capability of having pre-provisioned transport entities is available in technologies
9、 such as SDH or WDM. Source ITU-T Recommendation G.852.10 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 6.852.10 (03/99) 1 STDeITU-T RECMN G-852=10-ENGL 1999 48b259L Ob60280 970 = FOREWORD ITU (Int
10、ernational 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 Recom
11、mendations 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 topi
12、cs. 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 Recom
13、mendation 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). INTELLECTU
14、AL 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,
15、 whether asserted by ITU 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, implemento
16、rs are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database. O 1TU 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 photocop
17、ying and microfilm, without permission in writing from the ITU. 11 Recommendation G.852.10 (03/99) STDoITU-T RECMN Gm852mLO-ENGL 1999 4862591 0660281 607 U CONTENTS Page 1 2 3 4 5 6 6.1 6.2 6.3 6.4 Scope References . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Abbreviations . . . . . . . . . . . . . . . . . . , . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20、 . . . . . . . Conventions . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . Community pre-provisioned link connection managem
21、ent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Purpose Role . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22、 . . . . . . . . . . . . . . . . Community policy Action . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
23、.4.1 Assign transport entities 6.4.2 De-assign transport entities . 6.4.3 Report transport entities change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . 1 1 1 2 3 4 5 . Recommendation G.852.10 (03/99) 111 STD-ITU-T REC
24、MN G852.LO-ENGL 1999 4862593 0660282 743 Recommendation G.852.10 ENTERPRISE VIEWPOINT FOR PRE-PROVISIONED LINK CONNECTION MANAGEMENT (Geneva, 1999) 1 Scope This Recommendation specifies the enterprise viewpoint for the pre-provisioned link connection management of a transport network. 2 References T
25、he 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 users o
26、f 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. i ITU-T Recommendation G.851.1 (1996), Management of
27、 the transport network - Application of the RM-0DPJi.amework. 2 ITU-T Recommendation G.852.2 (1 999), Enterprise viewpoint description of transport network resource model. 3 Definitions None. 4 Abbreviations This Recommendation uses the following abbreviations: Id Identifier plcm Pre-provisioned Lin
28、k Connection Management RM-ODP SDH Synchronous Digital Hierarchy TE Transport Entity WDM Wavelength Division Multiplexing Reference Model for Open Distributed Processing 5 Conventions None. Recommendation G.852.10 (03/39) 1 STD-ITU-T RECMN Gm52.LO-ENGL 1999 48b2591 Ob60283 bT m 6 Community pre-provi
29、sioned link connection management 6.1 Purpose The purpose of this community is to assign transport entities to a caller and to control and update the available capacity of the linking entity. The available capacity of the linking entity contains all the unassigned transport entities. This community
30、should be used in the case where transport entities have already been provisioned inside the linking entity using the adaptation management. The capability of having pre-provisioned transport entities is available in technologies such as SDH or WDM. 6.2 Role plcm-caller This role represents the clie
31、nt invoking the actions defined within this community. One or more caller role occurrences may exist in the community. NOTE - This assumes the existence of a suitable method for handling concurrence. plcmjrovider This role represents the server performing the actions defined within this community. O
32、ne, and only one, provider role occurrence shall exist in the community. notification receiver This role represents a receiver of the reporting actions defined within this community. Zero or more notification receiver role occurrences may exist in the community. layer network domain This role repres
33、ents the layer network domain resource defined in Recommendation G.852.2. One or more role occurrences may exist in the Community. linking entity This role represents the lirddtopological link resource (arc view) or the link endtopological link end resource (point view) as defined in Recommendation
34、G.852.2. One, and only one, linking entity role occurrence may exist in the community. transport entity This role represents the link connection resource (arc view) or the connection termination point resource (point view) as defined in Recommendation G.852.2. One or more transport entity role occur
35、rences may exist in the community. 6.3 Community policy OBLIGATION resourceconsistency This community applies for both arc-oriented view and point-oriented view. The roles linking entity and transport entity can be played by either arc-oriented resources or point-oriented resources, but consistently
36、: those two roles can be played either by arc-oriented resources or by point-oriented resources, but not by a mixture of arc-oriented and point-oriented resources. In an arc-oriented view, the point-oriented resources may only exist at the boundary of a subnetwork. 2 Recommendation G.852.10 (03/99)
37、STD=ITU-T RECMN G.852.10-ENGL 1999 4662591 Obb0284 5Lb OBLIGATION scope Only properties that are explicitly stated in this community are valid and can be accessed by both callers and provider of this community. Conformance to this service depends only on the explicit specification of this service. A
38、ny other modifications outside of this community are not relevant for conformance. OBLIGATION ServiceRejection In case of service rejection, the provider shall identi the obligation or prohibition which is not fulfilled either by the callers or the provider. The provider shall give an indication abo
39、ut any execution infrastructure problem. In this case, the level of detail indicated by the provider shall be dependent on the shared knowledge of the infrastructure on which the community is running. For the case where any wrong parameters have been passed to the provider, the return exception shal
40、l indicate these parameters. OBLIGATION signalId Each resource in the community shall have the same signal identification. OBLIGATION viewingcapabilities The provider shall support a view of the resource properties and relationships that have been identified or permitted in the service contract with
41、 the caller. OBLIGATION belongingConstraints All resources managed in the community actions shall belong to the community. OBLIGATION architecturalConstraints All the modifications performed on the resources in the community shall respect the architectural constraints expressed in Recommendation G.8
42、52.2. OBLIGATION assignmentcondition The assignment of a transport entity has no consequence on the other resources of this community. PERMISSION useuserlabel The caller may change the user-defined labels of the transport entities that have been assigned. OBLIGATION notiS;UserLabelChange If PERMISSI
43、ON useuserlabel is used by the caller, any change of the user-defined label of a transport entity shall be notified to the notification receiver. 6.4 Action 6.4.1 Assign transport entities This action is used to assign transport entities inside a particular linking entity, if the available linking e
44、ntity capacity makes it possible. The caller may require particular transport entities. ACTION - POLICY OBLIGATION SupplyLinkingEntityId The caller shall uniquely identie a linking entity that contains the transport entities. OB LI GAT1 ON noExi s t ing Linking Entity This action will fail if the su
45、pplied linking entity does not exist within the layer network domain. In the case of failure, the provider shall return the identifier in error. Recommendation G.852.10 (03/99) 3 STD-ITU-T RECMN G-85Z-IO-ENGL I999 48b259L Obb0285 452 PERMISSION selectTransportEntities The caller may select particula
46、r transport entities. OBLIGATION failIfSelectedTENotAvailable If PERMISSION SelectTransportEntities is part of the service contract, the action will fail if at least one of the selected transport entities is not available within the linking entity. In this case the identification of this transport e
47、ntity shall be given back to the caller. OBLIGATION failIfSelectedTEAlreadyAssigned If PERMISSION selectTransportEntities is part of the service contract, the action will fail if at least one of the selected transport entities is already assigned. In this case the identification of this transport en
48、tity shall be given back to the caller. OBLIGATION supplyNumberOf E If PERMISSION selectTransportEntities is not part of the service contract, the caller shall identi the number of transport entities to be assigned. OBLIGATION failIfNotEnoughAvailableTE If PERMISSION selectTransportEntities is not p
49、art of the service contract, the action will fail if there are not enough available transport entities. The number of requested transport entities shall be returned to the caller. OBLIGATION callerId The caller will give the provider its own identifier to log the assignment of the transport entities to that caller. OBLIGATION deduceAvailableCapacity In case of a successful action, the provider shall deduce the new number of available transport entities within the linking entity as follows: the new number of available transport entities is equal to the previous number of av
