Compact Classification Essay - 1004 Words

IV. PACKET CLASSIFICATION SCHEME Once the network services priority descriptors have been created and associated with their according rules, the next goal is to analyze the rule set and to build a compact lookup structure with a minimal: storage, overall processing time and an optimized lookup time for high priority network services. One general way to compute a compact classification structure, comprises in partitioning the overall rule set into smaller and easily manageable groups called subsets. The subsets are generally organized into a tree structure (a.k.a. index trie). Hence, an incoming packet will be processed first by scanning the tree in order to find a subset(s) with potentially matching rules. Then the captured subsets are†¦show more content†¦The top node in the graph includes all existing match field values with no rules and is successively grouping rules to describe the dependencies . The investigation of rules semantics and the generation of groups with dependencies is a nontrivial task owi ng to the computational challenges [4] . To tackle this issue, we have applied Formal concept Analysis (FCA) [7], which relies on results from algebra and lattice theory [10]. In order to adapt the FCA method to our case, the rules were considered as objects and the match field values as attributes. The clusters of FCA helps to find the rule sets that are intentionally described by the respective sets of common match fields. Yet, the output of the FCA method is computed according to numerical similarity with no support of the hardware constraints and the network services priorities. Indeed, the FCA clusters generally satisfy a single cardinality constraint min or max leading to the notion of iceberg lattice. A solution to this drawback is to tune FCA methods by searching within the set of nodes for subsets that provide the best trade-off between high priority services lookup time and storage. Once the subsets are selected, a lookup key is chosen for each subset: here, also the choice is guided vis-`a-vis storage minimizing whichShow MoreRelatedAn Essay On Foucault s Virtue1376 Words à ‚  |  6 Pages â€Å"What is Critique? An Essay on Foucault’s Virtue† is the article that Judith Butler reads and analyzes the ideas of Foucault’s in the article, â€Å"what is Critique?† Foucault wants to express his ideas that critique is a repetition of un-defeat of the matter, which would deliver the issue with an evident kind of independence. But, when Foucault discards the impression of the autonomous topic, what portions of independence is actually thinkable for the subject? Butler’s article really wants to explainRead MoreNewspaper854 Words   |  4 PagesInternet. 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