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The current Internet traffics depend more on the P2P type communication than the legacy client-server type communication. The P2P communication has been applied to diverse systems such as the VoIP and the file sharing system for the P2P potential ability. The distributed file sharing system over the P2P network using DHT (Distributed Hash Table) can especially provide the quick search, while the file...
Overlay architectures are the information theoretical playgrounds of the Internet. They provide significant gains in throughput by shifting complexity into the network nodes. A consequence is the requirement for smart routers between adjacent network segments. Since meanwhile audiovisual media allocate the major part of the Internet traffic, protocols as well as overlay structures have to serve Predictable...
The continuous growth of peer-to-peer networks has made them responsible for a considerable portion of the current Internet traffic. For this reason, improvements in P2P network resources usage are of central importance. One effective approach for addressing this issue is the deployment of locality algorithms, which allow the system to optimize the peers selection policy for different network situations...
Internet traffic has continued to grow exponentially in recent years so that operators frequently face increasing congestion and complex problems in the operation of backbone networks. Efficient traffic engineering is one way of solving these problems. Generally, traffic-engineering functions are implemented per router. This is far from ideal in a large-scale network because of delays in synchronization...
An architecture for a traffic data collection system is proposed, which can collect data without having access to a backbone network. Contrary to other monitoring systems it relies on volunteers to install a program on their own computers, which will capture incoming and outgoing packets, group them into flows and send the flow data to a central server. Data can be used for studying and characterising...
The throughput of a packet switch is a major switch property, and therefore, of major interest to analyze it. An approximation of the throughput of a staged random selection algorithm with a single iteration under uniform for a three-stage Clos-network packet switch, also called a Space- Space-Space (S3) Clos-network packet switch, has been recently presented. However, the difference between this...
To have line-speed processing ability is a fundamental rule in the design of high-density linecard in router and other network equipment. To satisfy this requirement, the traffic processing speed of the linecard should be not less than the sum of the individual link rates. With the quick increasing of link rate, the line speed processing requirement becomes too hard in high-density linecard design...
Routers, whose main tasks include forwarding and best route computing, have undergone several design architectures in the last years in order to deal with the explosion of traffic in the Internet. Next generation routers are made with enhanced memory capacity and computing resources, distributed across a very high speed switching fabric. However, the current routing software products, particularly...
Current Internet is operated based on interdomain routers executing interdomain routing protocols interconnecting nodes of various autonomous systems. Due to new requirements of traffic in the core Internet, next generation routers with enhanced memory capacity and computing resources, distributed across a very high speed switching fabric are developed in order to replace the currently used interdomain...
High packet switching performance and the potential scalability to a large number of input/output ports, under the admissible traffic assumption, have made Birkhoff-von Neumann load-balanced switch one of the most attractive and promising switch architecture. The focus of this study is on the construction of large number of input/output ports load-balanced switch with very high transmission rate,...
Recently the Birkhoff-von Neumann load-balanced (LB) switch has become a promising switch design due to its high scalability properties and simple control. The performance of the LB switch was studied under strong assumptions such as infinite buffers and admissible traffic conditions. However, both such assumptions may be violated in multi-hop networks since admissibility requirement cannot be maintained...
Peer-to-peer (P2P) file distribution is a scalable way to disseminate content to a wide audience. This paper presents an algorithm by which download times are sequentially minimized; that is, the first peer's download time is minimized, and subsequent peers' times are minimized conditional on their predecessors' times being minimized. This objective gives robustness to the file distribution in the...
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