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Home : ITU-T Home : Workshops and Seminars : Next Generation Networks and Grids
 ITU-T/OGF Workshop on Next Generation Networks and Grids

Speaker: Dr Mike Fisher,  BT Group
Session: 1: Keynote speeches – Visions of Grids and NGN
Title of Presentation: Grids for Business: A Service Provider’s Perspective

Revenues in the IT sector are clearly shifting from products to services. IT services accessible over wide-area networks have the potential to radically change the way business is conducted both locally and globally. Grid technologies can make a major contribution to realizing this potential. However, technical solutions suitable for widespread commercial adoption and the open standards needed to provide interoperability are still immature.
Current scientific deployments of Grid technology are typically special purpose, and are complex to set up and maintain, but clearly deliver real value to their users. Early commercial deployments also provide benefits but most are computing clusters and make limited use of network connectivity.
To meet the needs of business, Grids must offer users predictable price and performance together with flexibility and control over their own business processes. They must also allow service providers to manage their service offerings efficiently to a wide range of customers through the full service lifecycle.
Investment in next generation networks over the next 10 years will amount to hundreds of billions of euros worldwide. If the technical and interoperability challenges associated with current Grid technology can be solved, there is the opportunity for these networks to provide a ubiquitous infrastructure for future services.
Speaker: Kees Neggers, SURFnet
Session: 1: Keynote speeches – Visions of Grids and NGN
Title of Presentation: Grid networks in the research community

In his keynote Kees Neggers will present the ongoing evolution in the research networking world towards so called hybrid networking. This evolution started in 2001 when the first international lambda for research networking was ordered by SURFnet between StarLight in Chicago and NetherLight in Amsterdam. Since September 2001, Lambda pioneers meet yearly in so called LambdaGrid Workshops. In 2003, at the third LambdaGrid Workshop in Reykjavik, it was agreed to continue this cooperation under the name GLIF: Global Lambda Integrated Facility. Today, hybrid networking is rapidly moving from pioneers to mainstream research networking, paving the way for grid computing and applications on a global scale.
Speaker: Keith Knightson, Industry Canada
Session: 2: Setting the scene – Grid Tutorial and NGN Tutorial
Title of Presentation: What is NGN: Architecture

This presentation will outline the basic architectural principles of NGN, as a precursor to subsequent sessions. In particular, it will discuss the definition of NGN, introduce the basic architectural functions and the concept of subsystem components. The challenges of NGNs will be described and areas for further study will be identified. A summary of the Recommendations recently consented and under development will be provided.
Speaker: Marco Carugi 
Session: 2: Setting the scene ? Grid Tutorial and NGN Tutorial
Title of Presentation: What is a NGN: Service Enablers

The presentation provides an introduction to the services expected to be supported in ITU-T NGN Release 1, as well as to the network capabilities from the perspective of users and service providers required for the support of these services.

Mostly based on the NGN GSI Y.2201 R1 Requirements deliverable, some details are then given about some of these service enabling capabilities, in particular IMS, Open Service Environment capabilities, Mobility, Interconnection and ?Service Enablers? (as named in Y.2201).

Driven by market expectations for new and enhanced service features in NGN, some major topics for future standardization work in the service and capabilities areas are finally introduced, as well as some initial questions about the positioning of Grid applications with respect to identified NGN capabilities.
Speaker: Dave Berry 
Session: 2: Setting the scene – Grid Tutorial and NGN Tutorial
Title of Presentation: What is a Grid?

A Grid is a system of distributed computing resources that can be dynamically provisioned to address a variety of problems. Many examples exist in the worlds of e-science and e-business. A Collaboration Grid is a particularly important type of Grid that connects people in multiple organisations to form a virtual organisation. Grids provide a Service-Oriented Infrastructure that can underpin a Service-Oriented Application Architecture. Grids support large-scale computing at reduced cost while increasing operational agility. They can be seen as another step in the provision of computing as a commodity.
Speaker: Richard Schlichting 
Session: 2: Setting the scene – Grid Tutorial and NGN Tutorial
Title of Presentation: Grid computing: Telco perspective

While grid computing success stories from the financial, pharmaceutical, and manufacturing sectors are abundant, grid computing at telcos is still mostly in the formative stages. The Telco Community Group at GGF/OGF has been working for several years to remedy this situation by identifying opportunities for grid computing within telcos and by promoting its use.
This talk outlines some of these opportunities, which range from simply selling additional network bandwidth required by customer grids, to the internal use of grids at telcos, to the offering of grid computing as a managed service. In addition, we describe how gridsare currently used at various telcos, and, as an example, give an overview of AT&T's long term vision related to grid computing.
Speaker: Franco Travostino, Nortel
Session: 2: Setting the scene – Grid Tutorial and NGN Tutorial
Title of Presentation: Make way for Grids

This talk offers a first-cut view of how Grids evolution intercepts network evolution. The network is an all important factor in the Grid equation. Adequate networks mean low price of admission to Grids. Inadequate networks mean arrested development for Grids. A key point is that Grids pose new requirements, above and beyond fat-and-fatter pipes or low-latency pipes. While these help in general, a Grid's footprint expands and contracts over time, as dictated by a precise workflow, with network requirements also changing in space and time over the lifecycle of a Grid. Therefore, premium features such as bandwidth on demand and advance reservations resulted in greater confidence in a Grid's operation, yet without resorting to some wasteful, static peak allocation. Ideally, a Grid will harness an agile network much the same way it drives allocation of CPU and Data resources (multi-resource orchestration). Experimentation indicates that IP services and optical services have their own strengths and weaknesses in meeting Grid's requirements. The talk closes with a brief review network-related activities underway at the OGF.
Speaker: Dominique Verchere, Alcatel
Session: 3: Management, Control and Interoperability Issues
Title of Presentation: “Grids optimized Network Control Plane”

Operational Networks are shared between different user-applications. Critical applications such as Grid Computing, Networked remote Storage or other Networked remote Applications (e.g. Physics, Financial simulations) require complex connectivity services to interconnect different types of resources (e.g. Computational, Storage, or specific instruments). These applications specified by OGF define the class of «Grid applications».
The Grid applications have sporadic but QoS-constrained connectivity needs, such as high bandwidth for a massive data transfer, low latency for real time computing result remote visualization. To achieve such a fast connection triggering with QoS guarantees, applications should be able to communicate directly their own QoS requirements (bandwidth, acceptable delays and packet loss) end-to-end to the network control functions. The recent advances in transport switching systems enable to deliver configured, large capacity and determinist QoS connections (e.g. low BER and no jitter). However, Grid applications are currently overlaid on the transport networks, precluding the automation on a per connection basis of their QoS requirements to the network control. Interfacing network control with application control is necessary to overcome this limitation of the overlay model. With the continual achievements of the standard organizations such as IETF for GMPLS control protocols, ITU-T for the ASON recommendations, and OIF for the UNI/NNI agreements, the network control functions are numerous and stable. GMPLS protocols can be deployed for different switching technologies including IP/MPLS, Ethernet, SONET/SDH, and DWDM and their combinations. GMPLS provides already a strong level of resource virtualization at the network level. The next step is to design richer control network capabilities to enable the Grid application services to request more directly and automatically the correct amount of QoS needed and during the time a Grid application session requires the connectivity services. Moreover, further optimization can be achieved if the selection of the localization of end resources used by applications (such as CPU or storage) takes into account the network resources (available bandwidth) in order to jointly manage the end resource and network capacity for a global grid service responding to the application needs. This challenge can be achieved by providing a consistent level of abstraction and virtualization of resources for both the Grid application and the Network resources to enable the co-selection. The signaling engines should allow the combined reservation of computational, storage and network resources. This extended signaling approach addresses the co-allocation and cross optimization of Network resources and Grid resources (computer, storage, instrument/sensor). The associated scheduling functions perform the orchestration of the different types of the resources (network, computer, storage) spanning multiple locations and crossing different network domains. These new capabilities impose to extend existing protocols of the service plane (i.e. application, middleware) and the transport network plane or to specify new protocols. They have to be designed by considering: heterogeneous resources, advance resource signaling requirements, the scalability related to the number of sessions, combination of resource types, and the complexity of the connections.
From this level of consistency (i.e. harmony), Partner Grids will be deployed to allow firms to interact/transact with their customers, their suppliers and their industrial partners. The Virtual Organization concepts will become mature to be implemented offering the industrial institutions to have transparent access to shared Grid resources (computers, software programs, data and specific instrument resources) over shared transport networks.
Speaker: Michael Haley, 
Session: 3: Management, Control and Interoperability Issues
Title of Presentation: Implications for Next Gen Networks and Grid Computing to support IPTV and IMS Infrastructures

This presentation will briefly review several areas of IP-based services driving next generation networks.  IPTV/VOD and IMS have some standardization but are early in deployments and pilots, respectively.

IPTV/VOD success will be critically hinged on view Quality of Experience.

Newly emerging Web 2.0,  focusing on social networks and collaboration, is cited as a potentially large but as yet unknown load on incumbent telco networks and communty aggregators (eg, Google).  Leveraging  grid and virtualization in these infrastructures can be successful, but so far few deployments exist.  We offer the concept of loosely coupled vs. tightly coupled elements and loading attributes in target NGN architecture which may guide successful choice of when to use grid/virtualization for IP services, which may ultimately be standardized by ITU-T or other body.
Speaker: Huilan Lu, Lucent Technologies
Session: 4: QoS, Performance and Security Aspects
Title of Presentation: QoS for Next Generation Networks

Next Generation Networks (NGN) are characterized, among other things, by the prevalent use of a common packet transport for delivering a wide range of applications, from non-real-time to real-time, from single medium to multimedia. The advent of such general multi-service networks marks a major paradigm shift from today’s specialized networks with optimized performance for respective applications and gives rise to the need for supporting quality of service as dictated by various applications dynamically. This presentation will give an overview of the Q.4/13 activities on QoS support for NGN. In particular, it will highlight the emerging standard approach to dynamic, application-driven resource management that is known as the Resource and Admission Control Functions (RACF). Applicable to all network-controlled applications, the RACF can be used edge-to-edge or end-to-end, and be realized in various ways to support different business models.
Speaker: Martin Dolly, AT&T Labs
Session: 4: QoS, Performance and Security Aspects
Title of Presentation: NGN Security

This talk describes the challenges of NGN security and reports on the status of the relevant work in ITU-T, particularly work in SG13, which is the lead Study Group for NGN. The responsible Rapporteur group, Q15/13, has defined “trust models” to which the security requirements are to be applied. In addition, defines the security, and authentication/authorization relationships that need to be addressed in an NGN deployment.
Speaker: Michael Fehse, T-Systems
Session: 4: QoS, Performance and Security Aspects
Title of Presentation: Steering via SLA

In order to facilitate industrial acceptance of grid technologies, it is essential that they build on foundations of normal business activities. One of these foundations is the SLA, a contract at the business level that is not grid specific and lies in the domain of expertise of lawyers.
SLAs are always bilateral and contain information about the partners, period of service, obligations on the partners and payment informations.
SLAs are always end-to-end including all necessary components.
The translation of the requirement to use these SLAs into working prototypes is the function of the “proprietary smart bit” (PSB) of the service provider. The PSB also juggles the dynamically changing collection of SLAs on the more likely static collection of service objects.
To ensure the possibility of an automated offer/acceptance process and interoperability between different service providers it is mandatory to standardize the semantics of SLA objectives and parameters. T-Systems and the other partners of the NextGrid consortium are therefore evaluating proposals to standardization bodies.
Speaker: Niranth Amogh 
Session: 5: Future Trends and Issues
Title of Presentation: Self Adaptive Overlay Network Innovating NGN Architecture

Overlay networking and P2P concepts prove to be powerful in enabling pervasive adoption of services. It is important to learn from these emerging concepts and apply the features to the evolution of NGN and Grid infrastructure. This presentation provides a perspective for future NGN and Grid based on Self Adaptive Overlays and attempts to broaden the vision of Overlay for Future Generation Networks.
Speaker: Prof. Piet Demeester 
Department of Information Technology
Broadband Communication Networks (IBCN)
Ghent University - IBBT
Session: 5: Future Trends and Issues
Title of Presentation: Advanced Grid applications

This presentation will highlight some recent application domains where grid computing may play a major role. A first application area is the production of Media content (e.g. in broadcaster environments) where the major challenge is the distributed storage and processing of video based content. A second application area is the consumer environment where grids may offer an alternative to classical desktop computing. A last application area is wireless thin client computing where the terminal has limited capabilities (processing, storage and power).


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