IEEE Next Generation Service Overlay Network – P1903 (NGSON)

1. IEEE Next Generation Service Overlay Network – P1903(NGSON) An enabler for an emerging vision for future service networks 15 May 2009, Geneva Rick Townsend, Huawei Technologies Chair, IEEE P1903 (NGSON)

2. CONTENTS Overview of NGSON charter process Technical overview of NGSON Interactions with other bodies Summary and contact information

3. Jan-2008, NGSON SG 2nd meeting Feb-2008, PAR approved by IEEE ComSoc 27-Mar-2008, IEEE NesCom & SASB approval! May-2008, WG 1st meeting Jan-2008，PAR submitted to IEEE-SA Mar-2008, 6 companies support NGSON Sep-2008, WG 2nd meeting Feb-2008, PAR approved by IEEE-SA CAG IEEE ComSoc IEEE-SASB IEEE CAG IEEE NGSON (P1903) Dec 2008, WG 3rd meeting Feb-2007,Idea published to IEEE NGSON (IEEE P1903) standardization Working Group Stage Study Group Stage Mar-2009, WG 4th meeting Sep-2007，NGSON SG 1st meeting Participants: CMCC, KT, ETRI, Telcordia, RITT, Huawei, ZTE,etc. The idea of NGSON (Next Generation Service Overlay Network) was published to IEEE-SA CaG by Huawei in Feb, 2007. As the originator of NGSON, Huawei facilitated this project, and gained supports from the ICT industry.

4. The NGSON PAR* 5.2 Scope:This standard describes a framework of Internet Protocol (IP)-based service overlay networks and specifies context-aware, dynamically adaptive, and self-organizing networking capabilities, including advanced routing and forwardingschemes, and that are independent of underlying transport networks. *PAR – Project Authorization Request

5. Some Definitions “context-aware” (e.g., such as required QoS level, type of service such as real-time vs. data, nature of data stream such as I-frame vs. B-frame, and type of terminal such as TV HD monitor vs. PDA) “dynamically adaptive” (e.g., using locally derived information to discover, organize, and maintain traffic flows in the network within a local area network) “self-organizing networking capabilities” (e.g., developing network structures based on the needs of the customers and the capabilities of existing network structures)

6. The NGSON PAR (2) 5.4 Purpose:The purpose of this standard is to enable network operators, service/content providers, and end-users to provide and consume collaborative services by the deployment of context-aware, dynamically adaptive, and self-organizing networking capabilities.

7. The NGSON PAR (3) 5.5 Need for the Project: The amount of services and applications and their interaction are increasing at an exponential rate. This standard is needed to provide a better, more efficient way of providing these services and applications by means of context-aware, dynamically adaptive, and self-organizing networking capabilities.

8. Document Status Draft Frozen Released White Paper 1Q09, Rel1 Requirements 4Q08 2Q09 2Q09 Architecture 2Q09 1Q10 Technical Specs  3Q10 Current work

9. Architectural Intent Our intent is not to duplicate or re-do any work associated with existing architectures or the functions associated with those architectures, but to use what is available. We intend to work outside of areas (but in cooperation with) currently being done by such bodies as ITU-T, TISPAN, OASIS, ATIS SON and PTSC, OMA, PARLAY, 3GPP, TMF.

10. ITU OSE

11. IMS

12. TMF SDF

13. Use Case Issues At 8:59pm, everyone changes channels. What happens to the network and how is it controlled? At 3pm, the teenagers return home from school and start numerous peer-to-peer (P2P) networks. Which entity sets up the P2P networks and manages them?

14. Evolution Goals Next generation: Loosely coupled service network architecture Interconnect a large number of existing / emerging services and enablers Enhance reusability of services / enablers worldwide Cost-efficient creation of services Interoperability of service / network operators, service providers worldwide …

15. Network Evolution 1st gen.: Traditional Silo architecture 2nd gen.: Centralized SDP solution Next Generation Service Overlay Network

16. Key technologies (1) Self-organized networking Dynamically locate contents taking into account the location of the user as well as his/her access conditions. Dynamically publish a range of services that may be accessed by a user, based upon his/her profile, and interests. Dynamically (re)configure network devices, depending on the traffic load conditions, the provisioning of additional content servers, etc. Dynamically notify users about the efficiency of a Quality of Service (QoS) and/or security policy.

17. Key technologies (2) Service composition and interaction In order to respond to customer demand quickly and shorten the service development cycle, service networks need to offer an on-demand and flexible composition mechanism. Dynamically compose the related basic services to meet the requirement of users. Research a common service interaction protocol, provide a solution for service interaction. Service accounting Based on service/resource rate registration, the system will support real-time charge negotiation during the service composition. Accounting will support intelligent charging based on service chain.

18. Key technologies (3) Service & resource addressing When the number of applications & service is very large on service network, NGSN will consider how quickly to discover target service for service interaction and service composition. To provide a uniform resource search and access mechanism to reduce the cost of different access protocol and un-structured resource discovery. Address types of network layer & service layer have multiple instantiations; in order to make services in heterogeneous networks and domains interact directly, NGSN will research a uniform service addressing mechanism. Context-aware service routing Research a new service routing based on the service addressing, it can provide context-aware service routing according to service provider’s policy. Service interaction and service management will be benefited by this feature.

19. Key technologies (4) Service registration To support the context-based routing, the dynamic information about services can registry or de-registry to NGSON. Service publication/discovery To facilitate the user or service creator to find the existing services, NGSON provides a scalable way to obtain the interfaces, SLA, QoS and other static information about services. Mobility Include user mobility and the session continuity User change the attachment point across heterogeneous network Handover from different service providers or different terminals

20. NGSON Collaborative Environment Providers Users Under Autonomous Managed Environment Consumer Business process Services Components Composite services, IMS/Web services Service composition Client technologies UI, Web, SIP Service components, Enablers Networking Framework for collaborative Service plane, Network plane, Operations and management plane capabilities. NGSON • Capabilities of Service Operating Framework • Service Addressing, Routing • Service interaction facilitation functions • Discovery ,Registration • QoS, Security/Trust • Management and monitoring infrastructure • Capabilities for Network Elements • Large scale distribution of services • Context Awareness support • Dynamic policy enforcement capability • Self Organizing networking capability • QoS control and monitoring

21. NGSON Framework Diagram

22. Implementation Example of NGSON Key Aspects: Context awareness, addressing, routing, discovery, registration, composition, self-organization etc.

23. Requirements (1) • Network related functions • Support of network routing • Self-organization (3) • Adaptiveness • Identity • Resource virtualization (2) • Resource scheduling • Operation and management related functions • Manageability • FCAPS • Service management • Lifecycle management (2) • Inter-provider service • Open environment General functions Addressing Identifier Standard interfaces and protocols (2) User privacy (2) Interworking (2) Mobility (n) Following a subject indicates number of requirements for that subject

24. Requirements (2) Seamless mobility support Context awareness (9) Self-organizing (5) Adaptiveness Dynamic auto-configuration Security (3) Authentication (3) Service brokering Service coordination (3) Service collaboration Virtualization • Service related functions • Dynamic service routing (2) • Service routing (2) • QoS (3) • Registration • Registration and discovery • Registration / de-registration (4) • Service discovery (4) • Directory (2) • Negotiation • Service composition (5) • Billing of composite services • Charging and billing

25. High Level Technical View of NGSON Provide more automated delivery capabilities keyed to the self-organization of the services/applications of the overlay network based on context awareness. Composing services/applications dynamically. Self-organize services/applications on an overlay to provide simplified access by service providers and users. Allow a wide range of services/applications to be offered through different networks to different devices using a range of resources, all based on context awareness.

26. Example: Dynamic Service Composition

27. Liaison Opportunities ITU-T NGN, OSE (Open Services Environment) ETSI TISPAN Core IMS, PES, NASS/RACS, IPTV 3GPP IMS TMF SDF, OA&M ATIS SON Service creation, deliver, provisioning OMA OSE (OMA Service Environment), Service enablers PARLAY APIs OASIS Open standards for a global information society, SOA

28. Challenges The area of service networks is going to get more and more active in the standards arena and will need serious coordination. For technical aspects (i.e., the network service/transport folks), ‘context aware’, ‘dynamically adaptive’ and ‘self-organizing’ become technical challenges. Implementation and accounting methodologies become a business challenges.

29. Summary Service interactions are getting more attention in standardization work NGSON is taking an approach to services as shown in this presentation. IEEE welcomes your participation in NGSON

30. Where to find us • Email exploder for people interested in NGSON: • stds-P1903@ieee.org • For questions: • ricktownsend@comcast.net • Website: • http://grouper.ieee.org/groups/ngson • Thank you!