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In this paper, we propose and prove correct a distributed stabilizing implementation of an overlay, called DR-tree, optimized for efficient selective dissemination of information. DR-tree copes with nodes dynamicity (frequent joins and leaves) and memory and counter program corruptions, that is, the processes can connect/disconnect at any time, and their memories and programs can be corrupted. The...
Packet Alters are rules for classifying packets based on their header fields. In order to avoid ambiguities in packet classification, the set of filters in a router table must be conflict-free, i.e. for any incoming packet p, there must be a unique best matching filter which applies to p. We present the first output-sensitive solution for the offline version of the conflict detection and resolving...
Query-load (forwarding and answering) balancing in structured overlays is one of the most critical and least studied problems. It has been assumed that caching heuristics can take care of it. We expose that caching, while necessary, is not in itself sufficient. We then provide simple and effective load-aware variants of the standard greedy routing used in overlays, exploiting routing redundancy originally...
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