1、INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU M.3208.2 (03199) SERIES M: TMN AND NETWORK MAINTENANCE: INTERNATIONAL TRANSMISSION SYSTEMS, TELEPHONE CIRCUITS, TELEGRAPHY, FACSIMILE AND LEASED CIRCUITS Telecommunications management network TMN management s
2、ervices for dedicated and reconfigurable circuits network: Connection management of pre-provisioned service link connections to form a leased circuit service ITU-T Recommendation M.3208.2 (Previously CCITT Recommendation) STD.1Tl.I-T RECMN M-3208-2-ENGL L999 48b259L OhhOei48 T7C1 m ITU-T M-SERIES RE
3、COMMENDATIONS TMN AND NEWORK MAINTENANCE: INTERNATIONAL TRANSMISSION SYSTEMS, TELEPHONE CIRCUITS, TELEGRAPHY, FACSIMILE AND LEASED CIRCUITS Introduction and general principles of maintenance and maintenance organization M. 10-M.299 M.300-M.559 M. 560-M. 759 M.760-M.799 M.800-M.899 International tran
4、smission systems International telephone circuits Common channel signalling systems International telegraph systems and phototelegraph transmission International leased group and supergroup links International leased circuits Mobile telecommunication systems and services International public telepho
5、ne network International data transmission systems Designations and information exchange International transport network Telecommunications management network Integrated services digital networks Common channel signalling systems M.900-M.999 M.1000-M.1099 M. 1 1 OO-M. 1 199 M. 1200-M. 1299 M.1300-M.
6、1399 M.1400-M.1999 M.2000-M.2999 M.300-M.3599 M.3600-M.3999 M.4000-M.4999 For further details, please refer to ITU-T List of Recommendations. - - - STD-ITU-T RECMN M-3208-2-ENGL 3933 m 415b25L Ob601549 907 m ITU-T RECOMMENDATION M.3208.2 TMN MANAGEMENT SERVICES FOR DEDICATED AND RECONFIGURABLE SERVI
7、CE LINK CONNECTIONS TO FORM A LEASED CIRCUIT SERVICE CIRCUITS NETWORK: CONNECTION MANAGEMENT OF PRE-PROVISIONED Summary This Recommendation is one of the series of M.3200 TMN management service Recommendations that provide descriptions of management services, goals and context for the dedicated and
8、reconfigurable circuits network. This Recommendation provides a profile of Recommendation M.3208.1 for customer administration of leased circuit services using pre-provisioned resources (link connections). This is done by using existing function sets, functions and parameters from Recommendation M.3
9、208.1 and adding additional semantics and restrictions. Source ITU-T Recommendation M.3208.2 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. Keywords Connection management, Dedicated and reconfigurable circuits net
10、work, Leased circuits, Leased circuit services, Telecommunications Management Network (TMN), TMN Management service. Recommendation M.3208.2 (03/99) I FOREWORD ITU (International Telecommunication Union) is the United Nations Specialized Agency in the field of telecommunications. The ITU Telecommuni
11、cation Standardization Sector (JTU-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
12、 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 ITU-T is covered by the procedure laid down in WTSC Resolution No. 1. In s
13、ome areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with IS0 and IEC. I NOTE In this Recommendation the term recognized operating agency (ROA) includes any individual, company, corporation or governmental organization th
14、at operates a public correspondence service. The terms Administration, ROA and public correspondence are defined in the Constitution of the ITU (Geneva, 1992). I INTELLECTUAL PROPERTY RIGHTS The ITU draws attention to the possibility that the practice or implementation of this Recommendation may inv
15、olve 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 Recommendation development process. As of the date of approval of this
16、 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 information and are therefore strongly urged to consult the TSB patent d
17、atabase. 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 ITU. 11 Recommendation M.3208.2 (03199) STD.ITU-T RECMN M*3208*2-ENGL
18、 LYYY W 4862571 ObhO851 5b5 E CONTENTS Page 1 Scope 1 2 References and related Recommendations . References Related Recommendations . 2.1 2.2 2 3 Definitions Service-related definitions 3.2 3.3 Role-related definitions Transport network resource definitions 4 Abbreviations . 4 5 5.1 5.2 6 Convention
19、s 4 Legend for the information flow tables Format of function sets follows Recommendation M.3208.1 4 5 Connection management service security 5 7 7.1 Customer administration management service . Management service description Management goals 7.2.1 High-level service customer requirements for connec
20、tion management 7.2.2 Specific functional requirement 7.2.3 Relationship with Recommendation M.3208.1 . 6 6 6 6 6 7 8 8 8 13 7.2 7.3 Management context description 7.3.1 Roles 7.3.2 Telecommunications services and resources . 7.3.3 Management functions 8 8.1 Management scenarios . Scenarios for conn
21、ection management functions . 8.1.1 Scenarios for CM leased circuit service creation 8.1.2 Scenarios for CM leased circuit service deletion 8.1.3 Scenarios for CM leased circuit service modification . 28 28 28 29 29 29 Scenarios for CM leased circuit service status administration . 8.2.1 Scenarios f
22、or report deletion of CM leased circuit service to service customer 8.2.2 Scenario for loopback creation 8.2.3 Scenario for loopback deletion 29 30 30 Recommendation M.3208.2 (03/99) . 111 STD.ITU-T RECMN M.3208-2-ENGL L999 m 4b2593 Obb0852 4TL 111 8.2.4 8.2.5 8.2.6 Scenario for loopback modificatio
23、n Scenario for failed LCS restoration . 9.1 Functional architecture . 9.2 Physical architecture . Appendix I - A SONET private line service example . Scenario for locked LCSs identifjing . 9 Architecture Appendix II - Ordering processes for service link connections Page 30 30 31 31 31 31 32 33 iv Re
24、commendation M.3208.2 (03/99) Introduction Recommendation M.3208.1 specifies customer management of leased circuit services. This Recommendation builds upon the management services of M.3208.1 in the case of pre-provisioned resources. Hence, the pre-service phase (from initiation of customer request
25、 to create service until service creation is completed) only involves connecting existing, pre-provisioned resources, and normally will be completed within a short period of time (nearly instantaneous). This Recommendation builds upon the dedicated LCS create function defined in Recommendation M.320
26、8.1 by requiring that all of the service link connections which support the LCS exist prior to the submission of the create request. Future work will address additional connection management functions. This Recommendation supports the relationship between services and enabling transport technologies
27、 described in Recommendation M.3208.1, For convenience, the M.3208.1 statement of this relationship is quoted here. “In general, the definition of a service should be independent of the particular network used to transport the service. This allows multiple technologies to support the service. Theref
28、ore, network level information should not be presented to the service layer. However, specific service features may be defined which allow network or network element information to be presented to a service customer. In this case, an abstraction of the information appropriate to the service feature
29、is transferred.“ This X interface at the TMN service management layer allows service customers to manage pre-provisioned link connection services without a detailed knowledge of the service providers network elements and network topology. The connection management LCS may be offered by one or more S
30、ervice Providers (SP). The CM LCS is defined between a single SC and a single SP. The Service Customer (SC) may have different levels of visibility to the technology used to provide the service link connections. Clause 6 provides the requirements for security of the CM LCS. Clause 7 provides the req
31、uirements for customer administration. This includes configuration, status administration and testing function sets. Appendix I shows a SONET private line service example. Appendix II shows a North American specific ordering process for the service link connections. Recommendation M.3208.2 (03/99) V
32、 Recommendation M.3208.2 TMN MANAGEMENT SERVICES FOR DEDICATED AND RECONFIGUFUBLE SERVICE LINK CONNECTIONS TO FORM A LEASED CIRCUIT SERVICE (Geneva, 1999) CIRCUITS NETWORK: CONNECTION MANAGEMENT OF PRE-PROVISIONED 1 Scope This Recommendation describes a subset of TMN management services for dedicate
33、d and reconfigurable leased circuits network identified in Recommendation M.3200 as a TMN managed area. Its main focus is on the real-time connection management of pre-provisioned service link connections. These management services may also be applicable for interactions between management systems o
34、f different service providers or within a service provider. TMN management services in this Recommendation spec$ interface requirements between Operation Systems (OS) to perform customer management of LCS using pre-provisioned resources. The interfaces addressed by the TMN management services in thi
35、s Recommendation are applicable to both the X interface and the 43 interface. Support for the services described in this Recommendation is at the discretion of the service provider. The TMN management services in this Recommendation are described using the GDMS template contained in Recommendation M
36、.3020 and build on the management services defined in Recommendation M.3208.1. 2 References and related Recommendations 2.1 References The following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitute provisions of this Recommendation. At t
37、he 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 and other references listed
38、 below. A list of the currently valid ITU-T Recommendations is regularly published. - ITU-T Recommendation G. 805 (1 999, Generic functional architecture of transport networh. WITT Recommendation M. 125 (1 988), Digital loopback mechanisms. ITU-T Recommendation M.30 1 O (1 996), Principles for a tel
39、ecommunications management network. - ITU-T Recommendation M.3020 (1 999, TMN interface speczfication methodology. - ITU-T Recommendation M.3200 (1997), TMN management services and telecommunications managed areas: Overview. ITU-T Recommendation M.3208.1 (1 997), TMN management services for dedicate
40、d and recon-gurable circuits network: Leased circuit services. - - - Recommendation M.3208.2 (03/99) 1 STDOITU-T RECMN M.3208.2-ENGL L999 II 4862591 Ob60655 100 - ITU-T Recommendation M.3320 (1 997), Management requirements for the TMN X-interface. ITU-T Recommendation M.3400 (1 997), TMN management
41、 functions. CCITT Recommendation X.721 (1992) 1 ISOOEC 10165-2:1992, Information technology - Open Systems Interconnection - Structure of management information: DeJinition of management information. CCITT Recommendation X.73 1 (1 992) I ISOAEC 1 O1 64-2: 1993, Information technology - Open Systems
42、Interconnection - Systems Management: State management function. - 2.2 Related Recommendations - CCITT Recommendation X.734 (1992) 1 ISOAEC 10164-5:1993, Information technology - Open Systems Interconnection - Systems Management: Event report management function. CCITT Recommendation X.735 (1 992) I
43、 ISO/IEC 1 O 164-6: 1993, Information technology - Open Systems Interconnection - Systems Management: Log control function. - 3 Definitions 3.1 Service-related definitions This Recommendation makes use of the following terms defined and/or specialized in Recommendation M.3208.1: - connection point;
44、- dedicated leased circuit service; - diversity; - layer network; - leased circuit service; - link connection; - network connection; - reconfigurable leased circuit service; - service access group; - service access point; - service characteristic; - service customer; - service node; - service provid
45、er; - subnetwork connection; - subnetwork; - termination connection point. This Recommendation defines the following terms: 3.1.1 route: A sequence of transport architectural entities, e.g. connection points, links, link connections, subnetworks, over which an LCS is provided. See Recommendation G.8
46、05 for the basis of this definition. 2 Recommendation M.3208.2 (03/99) NOTE - This usage of route is not defined in the definitions clause of Recommendation M.3208.1, but only in the definition of a parameter there. That usage does not include the concept of link connection. There is a fundamental n
47、eed for that concept in CM. 3.1.2 CM schedule: A list of time periods during which a CM LCS has an availability status of on-duty (not off-duty). The definition of availability status can be found in Recommendation X.73 1. 3.1.3 service link connection: A link connection used by connection managemen
48、t to construct a CM LCS. 3.1.4 dedicated service link connection: A service link connection which is reserved for the exclusive use of a single SC. 3.1.5 shared service link connection: A service link connection which can be used by a predefined set of SCs. That is, during a specific time period, on
49、ly one SC can use the SLC, and the right to use the SLC is assigned on a first come, first served basis or other priority scheme defined by a SLA. 3.2 Role-related definitions This Recommendation makes use of the following terms defined or specialized in Recommendation M.3208.1: - - service provider; - diversity; - service characteristic. service customer - alternate term for ”customer” in Recommendation M.3208.1; 3.3 Transport network resource definitions This Recommendation makes use of the following terms defined in the transport network architecture, Recommendation
