1、 International Telecommunication Union ITU-T E.4110TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (01/2010) SERIES E: OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS Network management International network management Framework for operations requirements of next g
2、eneration networks and services Recommendation ITU-T E.4110 ITU-T E-SERIES RECOMMENDATIONS OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS INTERNATIONAL OPERATION Definitions E.100E.103 General provisions concerning Administrations E.104E.119 General provisions conc
3、erning users E.120E.139 Operation of international telephone services E.140E.159 Numbering plan of the international telephone service E.160E.169 International routing plan E.170E.179 Tones in national signalling systems E.180E.189 Numbering plan of the international telephone service E.190E.199 Mar
4、itime mobile service and public land mobile service E.200E.229 OPERATIONAL PROVISIONS RELATING TO CHARGING AND ACCOUNTING IN THE INTERNATIONAL TELEPHONE SERVICE Charging in the international telephone service E.230E.249 Measuring and recording call durations for accounting purposes E.260E.269 UTILIZ
5、ATION OF THE INTERNATIONAL TELEPHONE NETWORK FOR NON-TELEPHONY APPLICATIONS General E.300E.319 Phototelegraphy E.320E.329 ISDN PROVISIONS CONCERNING USERS E.330E.349 INTERNATIONAL ROUTING PLAN E.350E.399 NETWORK MANAGEMENT International service statistics E.400E.404 International network management
6、E.405E.419 Checking the quality of the international telephone service E.420E.489 TRAFFIC ENGINEERING Measurement and recording of traffic E.490E.505 Forecasting of traffic E.506E.509 Determination of the number of circuits in manual operation E.510E.519 Determination of the number of circuits in au
7、tomatic and semi-automatic operation E.520E.539 Grade of service E.540E.599 Definitions E.600E.649 Traffic engineering for IP-networks E.650E.699 ISDN traffic engineering E.700E.749 Mobile network traffic engineering E.750E.799 QUALITY OF TELECOMMUNICATION SERVICES: CONCEPTS, MODELS, OBJECTIVES AND
8、DEPENDABILITY PLANNING Terms and definitions related to the quality of telecommunication services E.800E.809 Models for telecommunication services E.810E.844 Objectives for quality of service and related concepts of telecommunication services E.845E.859 Use of quality of service objectives for plann
9、ing of telecommunication networks E.860E.879 Field data collection and evaluation on the performance of equipment, networks and services E.880E.899 OTHER E.900E.999 INTERNATIONAL OPERATION Numbering plan of the international telephone service E.1100E.1199 NETWORK MANAGEMENT International network man
10、agement E.4100E.4199For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-T E.4110 (01/2010) i Recommendation ITU-T E.4110 Framework for operations requirements of next generation networks and services Summary Recommendation ITU-T E.4110 provides the framework for supporti
11、ng and defining the role of operations for the next generation networks and services. This Recommendation provides guidance in the development of processes and systems supporting operations, including fulfilment, provisioning, configuration and activation of NGN users of this Recommendation are ther
12、efore 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. The reference to a document within this Recommendation does not give it, as a stan
13、d-alone document, the status of a Recommendation. ITU-T E.410 Recommendation ITU-T E.410 (1998), International network management General information. ITU-T M.3050.x Recommendation ITU-T M.3050.x-series (2007), Enhanced Telecom Operations Map (eTom). ITU-T P.800 Recommendation ITU-T P.800 (1996), Me
14、thods for subjective determination of transmission quality. 3 Definitions and abbreviations 3.1 Terms defined elsewhere This Recommendation uses the following terms defined elsewhere: 3.1.1 next generation network (NGN) b-ITU-T Y.2001: A next generation network (NGN) is a packet-based network able t
15、o provide telecommunication services and able to make use of multiple broadband, QoS-enabled transport technologies and in which service-related functions are independent from underlying transport-related technologies. It enables unfettered access for users to networks and to competing service provi
16、ders and/or services of their choice. It supports generalized mobility which will allow consistent and ubiquitous provision of services to users. It can be observed that the NGN is characterized by the following fundamental aspects: packet-based transfer; separation of control functions among bearer
17、 capabilities, call/session, and application/service; decoupling of service provision from transport, and provision of open interfaces; 2 Rec. ITU-T E.4110 (01/2010) support for a wide range of services, applications and mechanisms based on service building blocks (including real time/streaming/non-
18、real time and multimedia services); broadband capabilities with end-to-end QoS (Quality of Service); interworking with legacy networks via open interfaces; generalized mobility; unrestricted access by users to different service providers; a variety of identification schemes; unified service characte
19、ristics for the same service as perceived by the user; converged services between fixed and mobile networks; independence of service-related functions from underlying transport technologies; support of multiple last mile technologies; compliant with all regulatory requirements, for example concernin
20、g emergency communications, security privacy, lawful interception, etc. 3.1.2 product ITU-T M.3050.4: What an entity (supplier) offers or provides to another entity (customer). A product may include service, processed material, software or hardware or any combination thereof. A product may be tangib
21、le (e.g., goods) or intangible (e.g., concepts) or a combination thereof. However, a product ALWAYS includes a service component. 3.1.3 service b-ITU-T Z.100 Sup.1: A set of functions and facilities offered to a user by a provider. 3.1.4 service providers b-ITU-T E.164 Sup.2: An entity that offers s
22、ervices to users involving the use of network resources. 3.2 Terms defined in this Recommendation This Recommendation defines the following term: 3.2.1 operations: The operations process is the traditional heart of the service provider (SP) enterprise for ensuring across the value chain within and b
23、etween service providers that all key business objectives and customer experience are supported. The operational environment includes provisioning, configuration, activation and billing of products and services both on the network stratum as well as on the service stratum. It includes all operations
24、 processes that support the customer (and the network) operations and management, as well as those that enable direct customer operations with the customer. These processes include both day-to-day and operations support and readiness processes. The view of operations also includes sales management a
25、nd supplier/partner relationship management. 3.3 Abbreviations This Recommendation uses the following abbreviations: CoS Class of Service CPE Customer Premises Equipment eTOM originally “Enhanced Telecom Operations Map“, now a trademark of the TM Forum FAB Fulfilment, Assurance, and Billing ICT Info
26、rmation and Communication Technologies IP Internet Protocol IPTV Internet Protocol Television IT Information Technology Rec. ITU-T E.4110 (01/2010) 3 ITIL originally “Information Technology Infrastructure Library“, now a trademark of the ITsmf NGN Next Generation Networks NGN Record incidents for pr
27、oblem management. 5.4.4 Problem management 5.4.4.1 Identify, prioritize and remove errors from the network infrastructure, processes and performance. 5.4.5 Change management 5.4.5.1 Implement appropriate changes with minimum negative impact on service delivery; provide accurate updates to the invent
28、ory database. 5.4.6 Release management 5.4.6.1 To take a holistic view of a change to a service and ensure that all aspects of a new release or other change or upgrade, both technical and non-technical, are considered together in implementation. Ensure all areas affected are ready for the changes th
29、at are to be released. 5.4.7 Service request management 5.4.7.1 To deliver new services and equipment as ordered and within a SLA; ensure timely and accurate updates to affected databases (which enables accurate billing as well as accurate technical records). 5.4.8 Availability management 5.4.8.1 To
30、 optimize the capability of the infrastructure, services and supporting organization to deliver a cost effective and sustained level of availability that enables the business to satisfy its business objectives. 5.4.9 Capacity management 5.4.9.1 To understand the future business requirements, the org
31、anizations operational requirements, and changes to the infrastructure. 5.4.9.2 To ensure that all current and future capacity and performance aspects of the business requirements are provided cost effectively. This shall include managing capacity additions that will provide the bandwidth for servic
32、e growth at an acceptable quality of service. 5.4.10 Service continuity management 5.4.10.1 Support the business continuity plan by ensuring that the required technical and services facilities can be recovered within the agreed business timeframes. 6 NGN operations functions Past and new ITU-T Recom
33、mendations include many of the operational functions applicable for NGN&S operations. This Recommendation expands on these functions as needed by NGN&S operations to fulfil the defined goals of the service providers. While the focus of this Recommendation is on the network, this work will also inclu
34、de services and converged network view. 8 Rec. ITU-T E.4110 (01/2010) NGN&S operations functions include the following: 6.1 Status and performance monitoring on a near real-time basis 6.1.1 This task is based on the use of periodically collected measurements, alarms (i.e., major, minor, and critical
35、) and notifications generated upon occurrence of significant events. These are sent from the network platforms and service platforms to the NM/SM systems in a NM/SM centre. The measurements may be used directly or may be processed by a NM/SM tool in order to provide useful parameters. 6.2 Detecting
36、abnormal conditions 6.2.1 This is performed through analysis of the collected and derived parameters, e.g., measurements, alarms, notifications and correlation with other data. Abnormal conditions can also be detected with the help of statistical algorithms and threshold procedures. 6.2.2 Not only d
37、etecting abnormal conditions but also predicting abnormal conditions. 6.3 Investigating and identifying abnormal network and service conditions 6.3.1 This task should provide a diagnosis of the situation that may lead to a corrective control. The abnormal condition is usually expressed in terms of s
38、ervice or traffic identifiers with their traffic characteristics. 6.4 Initiating corrective actions and/or controls 6.4.1 Once an abnormal situation has been detected and its causes identified, traffic control actions should be executed. Actions may include controls to bypass a congested or overload
39、ed portion of the network/services platform. 6.5 Operational relationship 6.5.1 In an increasingly complex and competitive telecommunications and value-added services (content) market, it is unlikely that one network operator will be solely responsible for end-to-end delivery of traffic/content. Net
40、work operators will need to develop and maintain strong operational relationships with interconnecting networks, carriers or content providers to receive traffic/content from them and their customers. 6.5.2 There may be opportunities to understand the sorts of interactions required to fulfil these r
41、elationships by considering the interactions which form a regular part of international operations, or inter-carrier operations in competitive markets. The following three items signify this importance: 6.5.2.1 Cooperating and coordinating actions with other NM/SM centres Different applications (e.g
42、., telephony service) may have distinct NM/SM centres. Cooperation between the centres may be necessary to meet a global, regional and/or customer network performance or service target. 6.5.2.2 Cooperating and coordinating with other work areas As in the PSTN, information coming from equipment surve
43、illance and maintenance is important. Since IP packets in a converged network may traverse through other networks such as ATM, strong cooperation must be established between all work areas. 6.5.2.3 Cooperating and coordinating with other network operators IP packets may traverse from one operators n
44、etwork to another. Cooperation and coordination between network operators will strengthen the network management support of IP-based network services. 6.6 Issuing reports about network traffic and service management activities need to be service driven. Service performance reporting. Rec. ITU-T E.41
45、10 (01/2010) 9 6.6.1 As in the PSTN, these reports are important for managers, training and planning network performance improvements. 6.7 Provide advanced planning for known or predictable network and service situations 6.7.1 This planning should take into consideration the impact of abnormal or sp
46、ecial events on network traffic flows, and should also consider the requirements of particular service and traffic categories. 6.8 Testing 6.8.1 Automatic and manual test facilities should be integrated (e.g., testing the devices). 6.9 Interface to fault management system 6.9.1 A bidirectional inter
47、face should be implemented to send events and alarms to the fault management system and acknowledgement from the fault management system to the element management system or network element. In b-ITU-T M.3000, a framework is provided to consider the functions described in this clause and in ITU-T M.3
48、050.x which describes the eTOM. 7 Process definitions This analysis focuses on the relationship between TM Forum eTOM and ITIL. A methodology which ICT enterprises can use is proposed to address the Operational challenges associated with transforming into lean and agile operators. 7.1 eTOM enterpris
49、e view The eTOM model is an enterprise process framework. Focus is on the relationship between SIP and FAB process groupings. Enable revenueGenerate revenueStrategy, infrastructure and product OperationsStrategyand commitInfrastructurelifecyclemanagementProductlifecyclemanagementOperationssupport andreadinessFulfilment Assurance BillingE.4110(10)_F1Figure 1 Relationship between SIP and O-FAB The function of the FAB process grouping is to generate revenue for the enterprise. The function of the SIP process
