Xem 1-20 trên 67 kết quả Grid networks
  • Grid Networks describes the convergence of advanced networking technologies and Grid technologies, with special focus on their symbiotic relationship and the resulting new opportunities. Grid technology is applicable to many implementations, Computational Grids, Data Grids, Service Grids, and Instrumentation Grids. The authors cover a breadth of topics including recent research, featuring both theoretical concepts and empirical results. Beginning with an overview of Grid technologies, an analysis of distinguishing use cases and architectural attributes, and emerging standards.

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  • Wireless sensor nodes are small, embedded computing devices that interface with sensors/ actuators and communicate using short-range wireless transmitters. Such nodes act autonomously, but cooperatively to form a logical network, in which data packets are routed hop-by-hop towards management nodes, typically called sinks or base stations. A Wireless Sensor Network (WSN) comprises of a potentially large set of nodes that may be distributed over a wide geographical area, indoor or outdoor

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  • Grid Networks Enabling Grids with Advanced Communication Technology Franco Travostino, Nortel, USA Joe Mambretti, Northwestern University, USA Gigi Karmous-Edwards, MCNC, USA Grid Networks

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  • Tạo một TMG Firewall Network Mô hình kết nối mạng có tường lửa TMG dựa trên khái niệm TMG firewall “Network”, với chữ N viết hoa. Một TMG firewall Network là một bộ sưu tập các địa chỉ IPv4 không thuộc về bất cứ TMG firewall Network nào khác. NIC kết nối chính tường lửa TMG với các địa chỉ IP đó được coi là “root” của TMG firewall Network. Giả sử rằng bạn có một TMG firewall có hai NIC.

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  • Exploring privacy risks in information networks is analysing the dangers and hazards that are related to personal information about users of a network. It is about investigating the dynamics and complexities of a setting where humans are served by technology in order to exploit the network for their own good. In the information network, malicious activities are motivated by commercial factors in that the attacks to privacy are happening, not in the name of national security, but in the name of the free market together with technological advancements.

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  • Personal computer LANs Low cost Limited data rate Back end networks and storage area networks Interconnecting large systems (mainframes and large storage devices) High data rate High speed interface Distributed access Limited distance Limited number of devices

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  • The Grid is the computing and data management infrastructure that will provide the electronic underpinning for a global society in business, government, research, science and entertainment [1–5]. Grids, illustrated in Figure 1.1, integrate networking, communication, computation and information to provide a virtual platform for computation and data management in the same way that the Internet integrates resources to form a virtual platform for information.

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  • Recent developments in high-speed networking enables collective use of globally distributed computing resources as a huge single problem-solving environment, also known as the Grid. The Grid not only presents a new, more difficult degree of inherent challenges in distributed computing such as heterogeneity, security, and instability, but will also require the constituent software substrates to be seamlessly interoperable across the network

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  • The last decade has seen a substantial change in the way we perceive and use computing resources and services. A decade ago, it was normal to expect one’s computing needs to be serviced by localised computing platforms and infrastructures. This situation has changed; the change has been caused by, among other factors, the take-up of commodity computer and network components, the result of faster and more capable hardware and increasingly sophisticated software.

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  • Cuối cùng, nó là nhà thiết kế ứng dụng hoặc dịch vụ có thể xác định mối quan hệ giữa các chức năng này. (a) Abstraction / ảo hóa. Lưới điện có tiềm năng đặc biệt để tóm tắt các chức năng tùy biến vô hạn từ cơ sở hạ tầng công nghệ thông tin cơ bản và các tài nguyên liên quan. Mức độ trừu tượng trong một môi trường Grid cho phép hỗ trợ cho nhiều loại ứng dụng sáng tạo

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  • Carrier Sense Multiple Access (CSMA) is a probabilisticMedia Access Control (MAC) protocol in which a node verifies the absence of other traffic before transmitting on a shared transmission medium CAN uses a nondestructive bitwise arbitration, which means that messages remain intact after arbitration is completed even if collisions are detected. All the arbitration takes place without corruption or delay of the message that wins the arbitration.

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  • A Grid can be defined as a layer of networked services that allow users single sign-on access to a distributed collection of compute, data, and application resources. The Grid services allow the entire collection to be seen as a seamless information processing system that the user can access from any location. Unfortunately, for application developers, this Grid vision has been a rather elusive goal. The problem is that while there are several good frameworks for Grid architectures (Globus [1] and Legion/Avaki [18]), the task of application development and deployment has not become easier....

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  • In 1994, we outlined our vision for wide-area distributed computing [1]: For over thirty years science fiction writers have spun yarns featuring worldwide networks of interconnected computers that behave as a single entity. Until recently such science fiction fantasies have been just that. Technological changes are now occurring which may expand computational power in the same way that the invention of desktop calculators and personal computers did

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  • Cuối cùng, nó là nhà thiết kế ứng dụng hoặc dịch vụ có thể xác định mối quan hệ giữa các chức năng này. (a) Abstraction / ảo hóa. Lưới điện có tiềm năng đặc biệt để tóm tắt các chức năng tùy biến vô hạn từ cơ sở hạ tầng công nghệ thông tin cơ bản và các tài nguyên liên quan. Mức độ trừu tượng trong một môi trường Grid cho phép hỗ trợ cho nhiều loại ứng dụng sáng tạo

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  • Recent developments in high-performance networks, computers, information servers, and display technologies make it feasible to design network-enabled tools that incorporate remote compute and information resources into local computational environments and collaborative environments that link people, computers, and databases into collaborative sessions.

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  • The goal of autonomic computing is the reduction of complexity in the management of large computing systems. The evolution of computing systems faces a continuous growth in the number of degrees of freedom the system must manage in order to be efficient. Two major factors contribute to the increase in the number of degrees of freedom: Historically, computing elements, such as CPU, memory, disks, network and so on, have nonuniform advancement.

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  • Data Grids address computational and data intensive applications that combine very large datasets and a wide geographical distribution of users and resources [1, 2]. In addition to computing resource scheduling, Data Grids address the problems of storage and data management, network-intensive data transfers and data access optimization, while maintaining high reliability and availability of the data (see References [2, 3] and references therein).

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  • Computational Grids [1, 2] are large collections of resources such as computers, networks, on-line instruments, or storage archives, and they are becoming popular platforms for running large-scale, resource-intensive applications. Many challenges exist in providing the necessary mechanisms for accessing, discovering, monitoring, and aggregating Grid resources. Consequently, a tremendous effort has been made to develop middleware technology to establish a Grid software infrastructure (GSI) [2–4].

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  • Built upon a foundation of Simple Object Access Protocol (SOAP), Web Services Description Language (WSDL) and Universal Description Discovery and Integration (UDDI) technologies, Web services have become a widely accepted industry standard in the last few years [1, 2]. Because of their platform independence, universal compatibility, and network accessibility, Web services will be at the heart of the next generation of distributed systems. As more vendors offer SOAP tools and services, the advantages of using SOAP and Web services as an integration point will become even more pronounced.

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  • Until recently, application developers could often assume a target environment that was (to a useful extent) homogeneous, reliable, secure, and centrally managed. Increasingly, however, computing is concerned with collaboration, data sharing, and other new modes of interaction that involve distributed resources. The result is an increased focus on the interconnection of systems both within and across enterprises, whether in the form of intelligent networks, switching devices,

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