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—This paper aims at finding fundamental design principles for hierarchical web caching. An analytical modeling technique is developed to characterize an uncooperative two-level hierarchical caching system where the least recently used (LRU) algorithm is locally run at each cache. With this modeling technique, we are able to identify a characteristic time(More)
— This paper aims at finding fundamental design principles for hierarchical web caching. An analytical mod-eling technique is developed to characterize an uncooperative two-level hierarchical caching system where the least recently used (LRU) algorithm is locally run at each cache. With this modeling technique, we are able to identify a characteristic time(More)
Next generation access routers and edge devices need to provide functionalities, for layer-4 packet forwarding and ®rewall/security checks. Consequently, a challenging issue concerns how to achieve fast packet ®ltering and forwarding at low cost. This paper studies the ¯ow caching mechanisms for fast layer-4 packet forwarding. We show by model analysis that(More)
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