Method for cache validation for proxy caches
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United States of America Patent
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Jun 10, 2003
Grant Date -
Mar 27, 2003
app pub date -
Dec 30, 1997
filing date -
Jun 2, 1997
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A proxy cache maintains a copy of multiple resources from various servers in a network. When the proxy cache must generate a validation request for at least one resource at one of the servers, the proxy cache piggybacks one or more additional cache validation requests related to documents presently stored in the cache but originating from or associated with the server in question. Upon receipt of an indication of the freshness or validity of the cached copy of the document, the proxy cache can then make a determination as to whether to request an update of the document.
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