Method and apparatus for forwarding requests in a cache hierarchy based on user-defined forwarding rules
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United States of America Patent
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Jul 20, 2010
Grant Date -
N/A
app pub date -
Oct 15, 2001
filing date -
Oct 15, 2001
priority date (Note) -
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Abstract
A method and apparatus for forwarding requests in a cache hierarchy based on user-defined forwarding rules are described. A proxy cache on a network provides a user interface that enables a user to define a set of forwarding rules for controlling the forwarding of content requests within a cache hierarchy. When the proxy cache receives a content request from a client and the request produces a cache miss, the proxy cache examines the rules sequentially two determine whether any of the user-defined rules applies to the request. If a rule is found to apply, the proxy cache identifies one or more forwarding destinations from the rule and determines the availability of the destinations. The proxy cache then forwards the request to an available destination according to the applicable rule.
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