Quality of service management in GMPLS-based grid OBS networks.
ABSTRACT This paper proposes an architecture for the establishment of routes with absolute QoS constraints for optical burst switched grid networks. This model uses traffic engineering provided by GMPLS to build LSPs that matches the required performance in response to a request made by the user/application of the grid. Results show that the proposal is capable of enforcing QoS by reducing the loss experienced by burst classes and allowing a better utilization of the computing resources.
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Conference Paper: An OBS-based grid architecture[Show abstract] [Hide abstract]
ABSTRACT: Grids offer a uniform interface to a distributed collection of heterogeneous computational, storage and network resources. Most current operational grids are dedicated to a limited set of computationally and/or data intensive scientific problems. The de facto modus operandi is one where users submit job requests to a grid portal, acting as an interface to the grid's management system, which in turn negotiates with 'dumb' resources (computing and storage elements, network links) and arranges for the jobs to be executed. In this paper, we present a new grid architecture featuring generic application support, direct user access (grid-to-the-home) and decentralized scheduling intelligence in the network. We show how optical burst switching (OBS) enables these features while offering the necessary network flexibility demanded by future grid applications.Global Telecommunications Conference Workshops, 2004. GlobeCom Workshops 2004. IEEE; 01/2004
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ABSTRACT: Driven by increasingly complex problems and propelled by increasingly powerful technology, today's science is as much based on computation, data analysis, and collaboration as on the efforts of individual experimentalists and theorists. But even as computer power, data storage, and communication continue to improve exponentially, computational resources are failing to keep up with what scientists demand of them.Grid Computing: Making the Global Infrastructure a Reality, 05/2003: pages 51 - 63; , ISBN: 9780470867167
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ABSTRACT: In this article, the authors first introduce the basic idea of optical burst switching (OBS), compare it with other switching paradigms, and point out why OBS is a viable technology for the next-generation optical Internet In this article, the authors first introduce the basic idea of optical burst switching (OBS), compare it with other switching paradigms, and point out why OBS is a viable technology for the next-generation optical Internet. Techniques for generating a burst at the edge of an OBS network are studied next, followed by discussions of various burst reservation protocols. Characteristics of the burst traffic assembled using different assembly algorithms are also analyzed. Recent efforts on supporting service differentiation, Internet protocol (IP)/ wavelength-division multiplexing (WDM) multicast, the performance of TCP, and other issues related to traffic engineering in OBS networks are described at the end. The article also attempts to provide comprehensive coverage of research issues related to OBS. Among the issues covered are various burst assembly algorithms used at the edge of an OBS network as well as their effect on traffic characteristics of the assembled burst traffic and in turn the TCP performance. The authors have also presented various scheduling algorithms as well as burst contention resolution strategies used in the OBS core. Finally, recent work on quality of support and IP/WDM multicast has been discussed.01/2004;