Mestrado em Engenharia de Redes de Comunicações TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 2008-2009 Modelos e Normas 2: NGOSS, TOM, etom, TISPAN - Models and Standards 2: NGOSS, TOM, etom, TISPAN 1
Outline TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 2
( TOM ) Telecoms Operation Map Developed by Telemanagement Forum (TMF) www.tmforum.org Strong focus on enterprise aspects of management Telecoms Operations Process Map captures essential operations for: Customer care Service development and operations Network and systems management to Fulfill, Assure and Bill Services TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 3
TOM: Telecom Operations Map Customer Interface Management Process Fulfilment Assurance Billing Sales Order Handling Problem Handling Customer QoS Mgmt Invoicing & Collection Customer Care Processes Service Planning & Development Service Configuration Service Problem Resolution Service Development and Operation Processes Service Quality Mgmt Rating And Discounting Info System Mgmt Proc -ess Network Planning & Development Network Provisioning Network Inventory Mgmt Network Maintenance & Restoration Network Data Mgmt Network and Systems Management Processes Network Element Management TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 4
Describing Process Flows with TOM FAB Process Flows: Identify components taking part in process Identify interactions and information Identify co-operating sub-processes Examples of Process Flows: Service Fulfillment Flow Service Assurance Flow Billing process Flow TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 5
Sample Process Flow: Billing From Fulfilment Process ( Ordering ) Activate Billing Cycle Special Discounts Collection & Invoicing 3: Summarised Bill Content Collect Invoice 4: Generate Bills From Assurance Process (Problem ( Handling SLA Violations Rating & Discounting 2: Aggregated (Usage) Data Discount Rate Aggregate Other Providers Network Data Management Collate Collect Process 1: Network (Usage) Data Activity Network Elements and NE Management TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 6
Sample Process: Activating Service TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 7
Uses of TOM Framework for discussion inside and outside of a Telco Identifying and describing requirements Developing interface requirements and information models Negotiating interfaces for automated operations Locating parties on the map TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 8
OSS/BSS - TOM and RM-ODP Enterprise View TMN-BML TOM, e-tom UML Informational View TMN- Info Model CIM SIM Computational View Engineering View TIM CB EJB Technology View n1 link n2 TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 9
etom: Enterprise Telecom Operations Map Extends TOM to include process required in the Telco enterprise: Service Development and Management Resource Development and Management Lifecycle support for service development and resource development Many other processes TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 10
etom: Enterprise Telecom Operations Map While TOM has two levels of features, the functional layers and individual processes, etom identifies three Levels: Level 0: broad classification of processes and identifies the external stakeholders Level 1: add the vertical classification of end-to -end processes into areas such as fulfillment, assurance and billing already defined in the TOM Level 2: the processes themselves as in TOM, such as Order Handling or Service Configuration TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 11
etom: Enterprise Telecom Operations Map Level 0 of etom TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 12
etom: Enterprise Telecom Operations Map Level 1 of etom TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 13
etom: Enterprise Telecom Operations Map Level 2 of etom for Operations TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 14
etom: Enterprise Telecom Operations Map Level 2 of etom for SIP TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 15
NGOSS the framework The TMF NGOSS framework is required to support the development of OSS solutions The transition from a framework to a working system is achieved by specifying, acquiring and integrating a set of software components that work together to create end-to-end processes The components must be implemented in existing software technologies NGOSS promotes the use of commercial off -the-shelf components TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 16
NGOSS the framework views Business View Lifecycle System View NGOSS Solution Run-time View Implementation View TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 17
NGOSS the framework processes MDA-CIM MDA-PIM MDA-PSM Ent VP Info VP Comp VP Eng VP Tech VP etom SID NGOSS Business View etom SID NGOSS System View etom SID TSA Contract TSA FW Services NGOSS Implementation View etom SID TSA Contract TSA FW Services TSA NGOSS Run-time View TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 18
Unified View of NGN and OSS Control/User Plane Management Plane Application Layer SO View Partner Interaction Service Capability Layer Component Contract Orchestration Customer Transport Layer Processes: Network Service Customer TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 19
TISPAN Background Telecommunications & Internet Converged Services & Protocols for Advanced Networks (TISPAN) TISPAN is a standards group within the European Telecommunication Standards Institute (ETSI) Specialized in fixed networks & Internet convergence Defining a standards-based NGN architecture Based on well defined sub-systems, functional blocks & defined interfaces Maximizing fixed & mobile convergence, through adoption of 3G IMS components TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 20
TISPAN TISPAN focuses on all aspects of standardization for present and future converged networks including NGN TISPAN produces detailed implementable deliverables that cover NGN services, architectures, protocols, QoS, security and mobility aspects within fixed networks TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 21
TISPAN Detail and Status NGN-R1 start Release 1 Release 2 Release 3 xdsl, WLAN 3GPP Rel-7 Content Del. FTTx Full FMC/Mob??? 2004 2005 2006 2007 2008 2009 Release Timeline Pragmatic approach & emphasis on solutions Release 1 (Dec 2005): bringing Multimedia conversational services Voice, xdsl, SIP-oriented solutions, edge QoS capabilities Terminology, Strategy, QoS, Security, NNA & Identification, ENUM Requirements, General architecture, Early services and protocols Detailed architecture, Base services/protocols, 3GPP endorsements Operations Support Systems, Congestion control, NGN user data, PSTN/ISDN emulation TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 22
TISPAN Detail and Status NGN-R1 start Release 1 Release 2 Release 3 xdsl, WLAN 3GPP Rel-7 Content Del. FTTx Full FMC/Mob??? 2004 2005 2006 2007 2008 2009 Release Timeline Release 2 (current): bringing new services and optimizing resources usage Content delivery: Streaming, IP-TV, VoD Optimized resource usage Corporate users specific requirements Release 3 Generalized mobility, and more? TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 23
TISPAN NGN Genesis A strong industry demand For new generation Multimedia services over xdsl access For preparing replacement of soon becoming obsolescent PSTN For a first Release of specifications in 2005 Giving main standards directions With realistic and implementable solutions TISPAN developed an architecture consisting of a number of subsystems: Access network attachment Subsystem, Resource and admission control sub-system Maximizing Fixed and Mobile convergence, through adoption of 3G IMS component for support of conversational services TISPAN and 3GPP/3GPP2 collaborating to accommodate Wireline Access requirements by IMS TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 24
TISPAN NGN Services Requirements TISPAN_NGN supports legacy POTS services (PSTN/ISDN Emulation) Emulates the PSTN/ISDN Telephony service over an IP infrastructure This will enable use of the existing ISDN Supplementary services TISPAN_NGN R1 defines Voice Service (Simulation) Similar - but not identical - to existing PSTN service Including important supplementary services Based on IMS capabilities for basic voice call TISPAN extensions for simulation will be included in 3GPP IMS Standard capabilities with the aim of making the services applicable for other IMS networks than TISPAN IMS, e.g. mobile networks to facilitate seamless fixed mobile convergence for Telephony over IP services TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 25
TISPAN and IP NGN TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 26
TISPAN support SIP and non-sip TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 27
TISPAN NGN Architecture TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 28
TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 29
Referências Readings & Surfing: [C] Hu Hanrahan, Network Convergence: Services, Applications, Transport, and Operations Support, Capítulo 9: Operations Support Systems, 2007, John Wiley & Sons NOKIA, OSS/BSS reference architecture and its implementation scenario for fulfilment John Wilmes, Sajith Sankar, Standards-Based OSS for Accelerating Converged Services Delivery, TMF Mo Li, K. Sandrasegaran, "Network management challenges for next generation networks", The IEEE Conference on Local Computer Networks, 2005, Nov. 2005 Telemanagement Forum: http://www.tmforum.org/ ETSI TISPAN: http://www.etsi.org/tispan/ WWW TÓPICOS AVANÇADOS EM REDES ADVANCED TOPICS IN NETWORKS 30