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As applications continue to expand, there is a growing need to provide advance reservation scheduling for higher-end virtual overlay network services. Hence this work presents an optimization formulation for this problem and studies several heuristic solutions using network simulation.
Although multi-domain survivability is a major concern, few studies have considered post-fault restoration schemes. This paper proposes two such strategies (based upon hierarchical routing and signaling crankback) to handle single link failures in multi-domain IP/MPLS networks (also extendible to optical DWDM networks). The performance of the proposed solutions is then compared via simulation.
The peer-to-peer (P2P) systems have many applications due to their virtues: high scalability and low cost. The systems using super-peers (SPs), which deal with all queries, instead of ordinary-peers (OPs), run more efficiently. So how to choose SPs from all peers is a key, but also a difficult problem because of the systems' heterogeneity and dynamic. In this paper a novel mechanism for the selection...
We propose a three-level SuperPeer network (TSN) for file sharing built on a SuperPeer network. The TSN adopts a SuperPeer P2P network capable of providing file management and the structured P2P network capable of searching file as its basic structure. It is required to dynamically reconstruct its network topology according to changes in peer state and file hot. We propose an autonomic, distributed,...
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