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New Technologies for NM

New Technologies for NM. Where are we heading in ITU and other Fora ?. Overview. Technology Dimensions for NM Business drivers and goals impacting Network Management Architectures for NM support Logical and Physical representations Network Management Architectural Choices – wxample

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New Technologies for NM

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  1. New Technologies for NM Where are we heading in ITU and other Fora ?

  2. Overview • Technology Dimensions for NM • Business drivers and goals impacting Network Management • Architectures for NM support • Logical and Physical representations • Network Management Architectural Choices – wxample • Implementation considerations for Network Management SW • Interoperability at protocol and application levels • Protecting current investments with future proof considerations • Addressing market drivers • Initiatives with APIs and Model Driven Architecture • Conclusions

  3. NM Technology Dimensions • Architectural choices • Levels of Management Systems required • Distribution of functions across NM systems • How and where to store NM data and the stewards for data • Interoperability Choices • What protocols to be used across different interfaces between management systems • Coordination between control plane and management plane as is necessary with ASON services • Management information communicated across the interfaces and their representation • Semantics and Syntax of Informatio • Syntax depends on the protocol choice • Semantics derived from Information Models

  4. Business Drivers and Goals Infrastructure • Integrated Operations Support Systems • Flow through provisioning • Integrated customer care • More customer control • Interfaces to service providers of varying sizes • Reduced time to resolve troubles • Seamless management of different access, and core technologies • Maintaining quality of service for services with varying characteristics

  5. Architectural ConsiderationsGoals and Strategies • Operations Architecture • Use of multi-supplier Network Elements (NEs) and Element Management Systems (EMSs) • Element Management Layer (EML) approaches that support supplier independence to network and service management layers • Cross-technology domain management • Customer Interface Management • Electronic communications interfaces to other carriers and customers to support electronic commerce • Integrated customer contact and customer care services

  6. Architectural Implications • Information Architecture • Use of the network as an ultimate source of inventory data • Corporate data as an asset and stewardhip • Physical (Implementation) Architecture • Integration of legacy OSSs • Use of commercial off the shelf OSSs and applications • Open standard interoperable interfaces where appropriate and practical • Design and/or procurement of new OSSs consistent with business drivers • OSSs built on specified/approved computing platforms

  7. NM Architectural ChoicesHybrid Circuit and Packet Network Example Layer Domain Switched services Circuit - switched Architecture IP services IP ATM Private line (DS1, DS3) services SDH SDH STM - N services MS SPRING (BLSR) or UPSR OTN l services OTN ATM Physical XC Sw. OTN OTN/SDH OTN Architecture ADM XC XC POTS Mesh physical Sw. topology Optical rings in other domains OTN OTN OTN/SDH XC /ATM XC XC IP SDH Rtr. IP ATM POTS DCS Rtr. Sw. Sw. From ITU Recommendation M.3017

  8. ASONA Next Generation Network Feature • Features (G.8080) • Configure to support fast set up of switched and soft permanent connections • Reconfiguration for previously set up calls • Restoration • Some traditional NM Functions performed by control plane signaling • Path set up • Automatic Discovery of links • Routing related functions • Control Plane and Management Plane coordination necessary for reliable and smooth operation of network CP MP

  9. ASON Architectural Components From ITU Site

  10. Management of Hybrid NetworksOne Example Approach Service Management System Interface Network Management System Element Management System Interworking NE Circuit NE Packet NE ITU Recommendation M.3017

  11. TMN ATM SDHRing CNM CORBA USHR Home Banking DWDM OTN XML/ /Web services Directory HFC Virtual Reality Electronic Commerce ADSL DCE HTTP Multiple Technology Choices and Trends Transport Middleware Applications Java DCOM / OLE Web Hosting TCP/IP No more specific to Telecom world alone

  12. NM Protocol Interoperability Evolution XML/web services CORBAGIOP/IIOP with IDL CMIP with GDMO/ASN.1 SNMP V1,V2,V3, MIB TL1, FCIF (MML based) Proprietary 1980 1984 1990 1999 2003 Second Law of Thermodynamics Prevails

  13. What is Information Modeling? • Schema definition as a result of system analysis • Identification of entities (objects), relationships and operations • Model of a system as seen by the external view without internal implementation details • Techniques used include Entity Relationship, Object Oriented

  14. Evolving Methodology for NM Specifications • Initial Goal of TMN to use a single management protocol is no longer true • The management information model must be resilient to changes in the interface paradigm • Requirements Traceability is critical for good understanding between domain expert and protocol/modeling SW experts • UML has become the de-facto standard based on its visual modeling easy to understand features, power of expression and commercial availability of tools

  15. UML Mechanisms for Modeling • Inheritance • Relationships • Navigation • Constraints and Comments • Stereotypes • Type and Implementation Classes • Interfaces • Associations • State • Packages

  16. Application Level interoperabilityNGOSS (TMF) Framework Components Framework Services Business Services Contracts Basic Framework Policy Framework Distribution Support Business Service Support • Naming • Trading • Invocation • Shared information • Transaction Processing • Process Management

  17. Market drivers • Shorter time to market and faster return on investment • Reduced Development time and Efforts • Performance and Scalability • Robustness and Reliability • Creation of applications that function across multiple networks • Write once, run anywhere, any network, by any one • Faster Development and Integration of OSS/BSS solutions • Standardize infrastructure services for distributed environment • Focus on application logic

  18. Addressing Market Drivers for NMWhat is to be protected? • Facts to reconcile with… • Management interface protocols will change • Redefining management information to suit the protocol will become expensive • Time to market for services will reduce to grow the business • Maintaining redundant information with slight differences will become resource intensive • Wrapper changes should not require data redefinition • Modeling information can counter these issues to a large extent Key Resource = Corporate Data

  19. Industry Initiatives • API Specifications supporting • Service Creation (Parlay, JAIN™ etc.) • OSS/J built on J2EE • Architectures for integration back end systems • JCA and technology specific support for CORBA and SNMP • APIs for OSS/J applicable for multiple technologies • Model Driven Architecture • An OMG driven approach gaining interest in developing OSSs

  20. MDA what and why • Why move away from APIs? • Inflexibility with tight integration of business process and API • Difficult to respond rapidly to changing requirements and technology • Middleware proliferation (CORBA,Java/EJB,XML/SOAP…) • Need an Architecture and Infrastructure that can survive changes and future technology evolutions in SW development • What is MDA? • Separates business process and application logic • Higher level of abstraction than APIs • Built on Object Oriented Modeling Approach of UML OO modeling and Design Patterns • Code Generation Tools and Repository reduces development time • Enhancements achieved without requiring major changes to existing infrastructure and business processes • Technology and API decisions can be deferred to later

  21. MDADeployment Scenario Platform Independent Model (PIM) Mapping to multiple Deployment Middleware technologies PSM CORBA Java/EJB XML/SOAP Next New Platform Technology Independent representation of business

  22. conclusions • NM spans • Service creation • Service Assurance • Service Maintenance • Amidst multiple new technologies with fixed and mobile, with circuit and packet environments • Goals for New Technologies in Network Management • Preserving business processes and application logic offers future proof for service providers • Agility in development and deployment to achieve increased ROI • Integration across multiple technologies Thank You!

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