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Last few decades has brought many fundamental changes to data communications and the Internet. Internet has its roots in a networking project started by ARPA which consisted of four computers. Now the Internet spans the However transition to the new version has been remarkably slow. Thus in the interim, various transition mechanisms can be employed. In this paper two such mechanisms, namely configured...
As VoIP applications become increasingly popular, voice quality remains the user's biggest concern. Peer-to-Peer network can potentially obtain qualified relay nodes (QRNs) to make path switching when the QoS of a default path degrades. Locating quality relay nodes rapidly and inexpensively however is a very challenging task. In this paper, we design and develop a sophisticated system to take snapshots...
The file download process over Internet is usually slow. This paper presents design and simulation of a distributed and co-ordinated file transfer protocol for the Internet applications. Presented approach, known as hybrid parallelized file transport protocol (HPFTP), consist of a centralized server that distributes the download process across multiple file servers based on QoS parameters as available...
Live multimedia streaming applications operate more efficiently when organized in a peer to peer (P2P) topology. The upload capacity of the peers is utilized to support other peers thereby alleviating the load from the streaming server. Many peer to peer models have been proposed for live multimedia streaming but they have drawbacks including low resource utilization and high startup and source to...
Virtual computing lab (VCL) initiated at North Carolina State University (NCSU), is a virtualized, distributed and on-demand computing service architecture provided through Internet. As VCL related activities scale up to many adjacent states as well as to other countries including Canada and India, improving the system efficiency and utilization becomes an important consideration. In this paper, we...
DDOS attacks generate flooding traffic from multiple sources towards selected nodes and cause obstruction in flow of legitimate information within a network. If the victim node is a server in DMZ requiring fast information processing, the entire network operation stops. We use various lines of honeypot based defence against such attacks. The first line of defence detects the presence of attacks and...
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