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 TitleDate AddedCompany
whitepaper Converged Optical and Wireless Networking - Challenges for Photonics and Electronics2008-01-01 Institute of Biocybernetics and Biomedical Engineering
  Fixed and mobile communications will continue to converge coming years. Amongst other, this is also a goal of the Next Generation Networking initiative adopted by The International Telecommunication Union for the 2005-2008 Study Period. While a general belief is the Internet will support the majority of services, it should be carefully noted to select and separate the services in the network is a necessary condition to assure the Quality of Service and security for the individual ones. This paper proposes to allocate different services with different kinds of traffic and QoS requirements to different wavelengths in a single wavelength-division multiplexed optical network in order do satisfy the requirements of the customer specific to particular service used.

Tags: Network Management, Mobile and Wireless		   
whitepaper Fair QoS-Aware Adaptive Routing and Wavelength Assignment in All-Optical Networks2008-01-01 University of Virginia
  In all-optical networks with no wavelength conversion, signals must travel on the same wavelength over possibly very long distances. During transmission, the QoS of signals as measured by their Bit Error Rates is degraded not only by the propagation through fibers, but also by small optical leaks from other signals called crosstalk that occur in the nodes and cannot be removed at the physical layer. This paper presents a set of Routing and Wavelength Assignment algorithms that mitigate the crosstalk effects on all-optical network operation.

Tags: LAN - WAN, Network Management		   
whitepaper Overview of QoS Routing2008-01-01 Northwestern University
  QoS routing has been recognized as an important part in the evolution of QoS service offerings in the network. The goal of routing solutions is twofold: satisfying the QoS requirements for every admitted connection, and achieving global efficiency in resource utilization. This paper describes some of QoS-based routing issues and requirements, and presents different routing strategies, outlines Unicast and Multicast, intra and interdomain routing. Finally, the extensions to the OSPF protocol to support QoS routes are briefly described.

Tags: Network Management		   
whitepaper Distributed QoS Compilation and Runtime Instantiation2008-01-01 University of Illinois
  The rapid growth and coexistence of different application domains, such as multimedia and electronic commerce, present a significant challenge to the provision of their Quality of Service (QoS). To solve this challenge, the author needed a unified QoS framework, which allows flexibility and reconfigurability. This paper presents a reconfigurable component-based QoS framework, called 2KQ, which solves the challenge by partitioning the end-to-end QoS setup process into distributed QoS compilation and runtime QoS instantiation phases for different types of applications. Entities, services and protocols of this framework, such as application-to-component translator and component-to-resources translators, achieve the distributed QoS compilation and prepare all necessary QoS structures for the end-to-end QoS setup.

Tags: Software Development Tools, Software Development Tools		   
whitepaper QoS-Guaranteed Connectivity in MPLS Networks Based on the TINA Network Resource Architecture2008-01-01 University of the Witwatersrand
  Next generation networks demand a structured method to deliver QoS assured connectivity in IP networks. The TINA Network Resource Architecture (NRA) offers a layered framework that allows connections to be managed in a hierarchical manner. Applying the TINA NRA to MPLS networks provides a prospect to offer quality assurances when providing end-to-end connectivity across different administrative domains. This paper presents a policy-based management system based on the principles of the TINA NRA to deliver QoS assured connectivity.

Tags: Network Management, LAN - WAN		   
whitepaper A Major International Financial Services Institution Uses the Information Gleaned From IBM's Social Network Analysis Solution to Streamline Its IT Support and Infrastructure Operations2008-01-01 IBM
  The financial services institution's operational structure comprised three separate divisions each of which had different requirements in terms of IT hardware, software and support. Using a central IT infrastructure to meet such a diverse set of needs meant that design and engineering were performed at the lowest common denominator, creating a situation where the investment bank division, which required speedier response times and a higher level of service, was supplementing the central IT support group with its own auxiliary IT support. The institution turned to IBM ODIS - a partnership between IBM Research and IBM Global Business Services - to devise a solution that would help improve mission clarity, quality of service and timeliness of response on a cost-neutral basis.

Tags: Business Functions		   
whitepaper Sink Tree-Based Bandwidth Allocation for Scalable QoS Flow Set-Up2008-01-01 Michigan Technological University
  Although the Differentiated Services architecture supports scalable packet forwarding based on aggregate flows, the detailed procedure of Quality of Service (QoS) flow set-up within this architecture has not been well established. This paper explores the possibility of a scalable QoS flow set-up using a sink-tree paradigm. The paradigm constructs a sink tree at each egress edge router using network topology and bandwidth information provided by a QoS extended version of Open Shortest Path First (OSPF). Simulation results are very encouraging in that the methodology requires significantly less communication overhead in setting up QoS flows compared to the traditional per-flow signaling-based methodology while still maintaining high resource utilization.

Tags: Network Management, Network Management		   
whitepaper SLA-Based Resource Allocation in Cluster Computing Systems2007-12-21 North Carolina State University
  Resource allocation is a fundamental but challenging problem due to the complexity of cluster computing systems. In enterprise service computing, resource allocation is often associated with a Service Level Agreement (SLA) which is a set of quality of services and a price agreed between a customer and a service provider. The SLA plays an important role in an e-business application. A service provider uses a set of computer resources to support e-business applications subject to an SLA. This paper presents an approach for computer resource allocation in such an environment that minimizes the total cost of computer resources used by a service provider for an e-business application while satisfying the Quality of Service (QoS) defined in an SLA.

Tags: Network Management, IT Budgeting		   
whitepaper How Cisco IT Builds End-to-End QoS Into Its Network2007-12-18 Cisco Systems
  By 2003, Cisco IT - propelled by both business and technology drivers - was ready to develop a second version of QoS, referred to internally as QoS V2. They needed a comprehensive, end-to-end solution that addressed the network consistently across user devices from the LAN edge to the enterprise WAN edge. Keeping in mind its primary goal of building QoS based on trusted network edges, the Cisco IT design team established other requirements for QoS V2, including: Consistent performance and management standards across the LAN and WAN networks, the lowest-possible latency for voice applications, the ability to limit bandwidth consumption by large data transfers during times of traffic congestion etc.

Tags: LAN - WAN, Network Management		   
whitepaper An MPLS-DiffServ Experimental Core Network Infrastructure for E2E QoS Content Delivery2007-12-10 Demokritos
  The continuing and rapid growth of the Internet has created an extremely large capacity problem to the service and content provider's networks. The increased network traffic and the absence of service priority, usually produce high network congestions, delayed data and service transmissions and lack of throughput. The effect of these factors in A\V content transmission is to distort the initial content and decrease the content quality. To avoid this negative effect, service and content providers are looking for architectures that give them greater control on traffic passing through their domains and other heterogeneous networks. This paper proposes an experimental core network architecture (MPLS-DiffServ) presenting a solution for content providers that want reliable and agreed level of quality, even if the network is under congestion.

Tags: LAN - WAN