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We consider the following problem: two nodes want to reliably communicate in a dynamic multihop network where some nodes have been compromised, and may have a totally arbitrary and unpredictable behavior. These nodes are called Byzantine. We consider the two cases where cryptography is available and not available. We prove the necessary and sufficient condition (that is, the weakest possible condition)...
Our goal is to maintain 1+1 path protection as much as possible after a single failure occurs for ensuring carrier-grade reliability. An obvious approach is preparing a third path that is disjoint with the primary and backup paths, but applicability to actual networks with this approach is extremely restricted. From our evaluation, the recovery ratio for reconstructing 1+1 path protection decreases...
Overlay networks have emerged as a means to enhance end-to-end application performance and availability. Network topology plays an important role in utilizing resources in peer-to-peer systems. Epidemic algorithms are potentially effective solutions for disseminating information in large scale and dynamic systems. P2P networks are popular for their dynamicity, but they are easy to deploy, robust and...
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