1、ETSI REPORT ETR 048 September 1992 Source: ETSI TC-NA Reference: DTR NA43306 UDC: 621.395 Key words: TMN, management, network, service Network Aspects (NA); Telecommunications Management Network (TMN) Management services prose descriptions ETSI European Telecommunications Standards Institute ETSI Se
2、cretariat Postal address: 06921 Sophia Antipolis Cedex - FRANCE Oce address: Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE Tel.: +33 92 94 42 O0 - Fax: +33 93 65 47 16 - Tlx.: 470 040 F European Telecommunications Standards Institute 1 992. All rights reserved. No part may be reproduced
3、or used except as authorised by contract or other written permission. The copyright and the foregoing restriction on reproduction and use extend to all media in which the information may be embodied. COPYRIGHT European Telecommunications Standards InstituteLicensed by Information Handling Services 3
4、404583 00b7947 b94 W Page 2 ETR 048:1992 Whilst every care has been taken in the preparation and publication of this document, errors in content, typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to “ETSI Standards Management Dept.“ at the address show
5、n on the title page. COPYRIGHT European Telecommunications Standards InstituteLicensed by Information Handling ServicesPage 3 ETR 048:1992 Contents Foreword . 5 1 Scope . 7 2 References . 7 3 Abbreviations . 7 4 TMN management services 8 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10 4.1 1 4.12 4.13 4.14
6、4.15 4.16 4.1 7 4.1 8 4.1 9 4.20 Customer administration 8 Traffic measurement and analysis administration 9 Management of the security of the TMN 9 Traffic management 9 Management of customer access 10 Management of transport network. circuits between exchanges and associated Routing and digit anal
7、ysis administration . 8 Tariff and charging administration . 9 equipment . 10 Switching management . 11 4.9.1 Introduction 11 4.9.2 Definition . 11 4.9.3 Scope of switching management . 12 4.9.4 CCITT Recommendations . 13 Management of equipment in customer premises 13 System installation administra
8、tion . 13 Support element management 13 00s and network performance administration 13 Management of the customer controlled service . 13 Common channel signalling system management 13 Management of the Intelligent Networks (INS) 14 4.16.1 Introduction 14 4.1 6.2 Extent of managernent from TMN on IN
9、14 4.1 6.2.1 Services 15 4.1 6.2.2 Service features . 15 4.1 6.2.3 SIBS 16 4.1 6.2.4 Functional blocks . 16 Restoration and recovery . 16 Materials management 16 Staff work scheduling . 16 Management of the TMN . 16 History 17 COPYRIGHT European Telecommunications Standards InstituteLicensed by Info
10、rmation Handling Services= 3404583 0067949 467 Page 5 ETR 048:1992 Foreword ETSI Technical Reports (ETRs) are informative documents resulting from ETSI studies which are not appropriate for European Telecommunication Standard (ETS) or lnterim-European Telecommunication Standard (LETS) status. An ETR
11、 may be used to publish material which is either of an informative nature, relating to the use or application of ETSs or I-ETSs, or which is immature and not yet suitable for formal adoption as an ETS or I-ETS. This ETR has been produced by the Network Aspects Technical Committee of the European Tel
12、ecommunications Standards Institute (ETSI), as a result of studies into Telecommunications Management Network (TMNI, management services issues. This ETR provides a list and short prose descriptions of management services that can be supported by TMN, in order to assist in detailed specification wor
13、k. Only part of the management services has been completed so far, the remaining parts are for further study. The descriptions for this document have mainly been collected from ETR 047 ll which contains detailed definitions of these management services. Previous page is blank COPYRIGHT European Tele
14、communications Standards InstituteLicensed by Information Handling Servicesm 3g04583 O067950 189 m Page 7 ETR 048:1992 1 Scope This ETR provides a list and short prose descriptions of the Telecommunications Management Network (TMN) management services which have been adopted by ETSI Sub-Technical Co
15、mmittee (STC) NA4. These descriptions are intended to assist the development of detailed specification work in the TMN field. 2 References The following references are used within this document: i1 1 ETR 047: “Network Aspects (NA); Telecommunication Management Network (TMN) Management services“. 121
16、 CCITT Recommendation E. 1 42: “Time-to-answer by operators“. 31 t41 I51 i61 CCIlT Recommendation 0.500: “Digital local, combines, transit and international exchnges“. CCIlT Recommendation Q.511: “Exchange interfaces towards other exchanges“. CCITT Recommendation Q.5 12: “Exchange interfaces for sub
17、scriber access“. CCITT Recommendation Q.5 13: “Exchange interfaces for operations, administration and maintenance“. 171 CCITT Recommendation 0.521 : “Exchange functions“. i81 i91 CCITT Recommendation Q.542: “Digital exchange design objectives - Operations and maintenance“. CCIlT Recommendation Q.791
18、 (1 988): “Specifications of Signalling System No. 7 - Monitoring and measurements for Signalling System No. 7 networks“. 3 Abbreviations The following abbreviations are used within this document: ATM Asynchronous Transfer Mode CCF Connection (Call) Control Function cs 1 Capacity Set 1 HMI Human-Mac
19、hine Interface IN Intelligent Network ME Management Entity NE Network Element OMC Operation and Maintenance Centre os Operation System Previous page is blank COPYRIGHT European Telecommunications Standards InstituteLicensed by Information Handling ServicesPage 8 ETR 048:1992 OSF Operation System Fun
20、ctions POTS Plain Old Telephone Service PDH Plesiochronous Digital Hierarchy PSDN Packet Switched Data Network RLU Reloadable Unit RPU Replaceable Unit SCF Service Control Function SDF Specialised Database Function SIB Service Independent building Block SDH Synchronous Digital Hierarchy STP Signalli
21、ng Transfer Point TMN Telecommunications Management Network 4 TMN management services 4.1 Customer administration Customer administration is a management activity that the network operator performs in order to exchange with customers all the customer related management data and functions required to
22、 offer a telecom service, and to exchange with the network all the customer related management data and functions necessary for the network to produce that telecom service. In a wide sense this could include interactions for the purpose of service provision management, configuration administration,
23、fault administration, charging (including detailed billing) administration, complaints administration, quality of service administration, traffic measurement administration etc. Here, however, only customer administration, in the more traditional sense of service provision, service configuration and
24、 complaints management, has been included. 4.2 Routing and digit analysis administration The purpose of routing management information in an exchange is to allow either a traffic or a routing manager to change the static routing information dynamically. For traffic management purposes the requiremen
25、ts as specified in CCITT Recommendation E.142 21 should be met. In specifying the management object classes for routing, certain requirements must be met: 1) it must be possible to verify routing information in an exchange, with a minimal distortion in the normal operation of an exchange; 2) it must
26、 be possible to switch between routing tables according to a predefined timing schedule, e.g. by introducing scheduling for routing tables; 3) define functionality in such a way that routing tables may be changed easily; 4) avoid redundant information by making use of objects which exist during run
27、time; 5) it must be possible to expand the model with future requirements, therefore the specification of object classes for routing purposes must be expandable. COPYRIGHT European Telecommunications Standards InstituteLicensed by Information Handling Services= 3404583 0067952 T5L Page 9 ETR 048:199
28、2 4.3 Traffic measurement and analysis administration For further study. 4.4 Tariff and charging administration The tariff and charging administration covers the part of the management activities related to the tariffs in the Network Elements (NEs) and to the charging data of service usage. The acti
29、vities may include creation, interrogation, modification and deletion of data and the management of the data collecting process. The activities include all types of methods used to verify that the charging data is correct. The TMN may enhance this management service by providing faster, more extensi
30、ve and more reliable data collecting possibilities from NE and data administration possibility remotely through Operation System (OS) to NE. 4.5 Management of the security of the TMN For further study. 4.6 Traffic management This TMN management service is concerned with the management of traffic ass
31、ociated with circuit switched networks such as the PSTN, ISDN and transmission networks, e.g. the Synchronous Digital Hierarchy (SDH). The object of traffic management is to enable as many calls as possible to be successfully completed. This objective is met by maximising the use of all available eq
32、uipment and facilities in any situation. It is also seen as the function of supervising the performance of a network, and to be able, when necessary, to take the action to control the flow of traffic, to optimise the maximum utilisation of the network capacity. As a first attempt and to ensure an ea
33、se of specification this service will “initially“ concern itself with the Network Element (NE) , digital exchange. The TMN will collect traffic information from the NE and send commands to that NE to modify its operation or to re-configure the network. The NE may send traffic management information
34、periodically, or upon threshold triggering. The TMN may alter the thresholds at which the NE sends the traffic data and/or the periodic time reports. The data sent from the NE may be processed within the TMN, via mediation processes or 0%. In order for the NE, digital exchange, to accomplish the abo
35、ve, it will need to perform the following: - collect traffic management information by the use of an internal measurement sub-system; - process traffic management information; this will be done by processing the information from the measurement sub-system and converting it to a recognised set of tra
36、ffic management indicators; - transfer the recognised set of traffic management indicators over the 03 interface to the OS; - receive control information from the OS, via the 03 interface, and execute the appropriate controls to impact the traffic flow. The OS should be able to collect all the TM in
37、dicators to obtain an overall view of the status of the network. During the description and specification of traffic management it is usual to take into account aspects of common channel signalling system management and traffic measurement. TMN at present consists of many TMN management services, tw
38、o of which are the previously mentioned COPYRIGHT European Telecommunications Standards InstituteLicensed by Information Handling ServicesPage 10 ETR 048:1992 3404583 0067953 998 services. During the specification of this management service an attempt has been made to separate aspects of Common Chan
39、nel Signalling System (CCSS) management and traffic measurement from traffic management. This attempt has been made so as to make the task of specifying management services easier. However if, during further passes of the TMN methodology, it becomes clear that these management services cannot be sep
40、arated, then attempts will be made in future drafts to include them. 4.7 Management of customer access Management of customer access belongs or relates to that part of the local network that extends from the network terminating equipment up to, and including, the exchange termination. This must take
41、 into account any equipment associated with the customer access including multiplex equipment, network terminating units, etc. regardless of whether they are narrowband, broadband, analogue or digital. The term management also describes configuration, failure monitoring and fault analysis, security
42、and network performance of any part, or piece, of equipment associated with the access. It should also take into account separate requirements resulting from circuit switched, or packet switched, environments. Because of its complexity, customer access can no longer be regarded as consisting of just
43、 copper wires and network terminating equipment. It may however now consist of copper wires, or optical fibre, along with complex electronic equipment whose functions may need to be updated, or changed, by the network provider, therefore the access needs management control facilities so that these f
44、unctions may be operated upon. 4.8 Management of transport network, circuits between exchanges and associated equipment Management of the transport network covers all those functions necessary to bring into service, and to keep in service trails, including monitoring the performance of the trail. Th
45、e trail is characterised by the responsibility, in a server layer, of the integrity of transfer of characteristic information from one or more client network layers between server layer access points. It is formed by combining a near-end trail termination function. A trail termination has the respon
46、sibility to generate characteristic information of a network layer and to ensure its integrity. For example: - in Synchronous Digital Hierarchy (SDH) a trail could be defined as a lower-order path, higher- order path. Connection functions could be done by a digital multiplex or a digital cross- conn
47、ect; - in Plesiochronous Digital Hierarchy (PDHI a trail could be defined as a path. Connection functions could be done by multiplex or line system; - in Asynchronous Transfer Mode (ATM) a trail could be defined as a virtual channel or virtual path. Connection functions could be done by switching. A
48、ll these concepts are described in CCITT draft Recommendation G .tna “Generic functional architecture of transport networks“. COPYRIGHT European Telecommunications Standards InstituteLicensed by Information Handling ServicesW 3404583 0067954 824 Page 11 ETR 048:1992 Management of circuits between ex
49、changes and associated equipment covers all those functions necessary to bring into service, and keep in service, analogue or digital circuits between exchanges. This may also include recorded information services and other circuit related equipments such as echo cancellors. Circuits are defined as physical links such as junctions, private wires, data and digital circuits. These analogue and digital circuits originate and terminate at their respective switching points and may be a mixture of circuits originating as analogue and terminating as digital. An analogue circuit is defined as
