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System and method for performing granular invalidation of cached dynamically generated objects in a data communication network

  • US 8,301,839 B2
  • Filed: 12/30/2005
  • Issued: 10/30/2012
  • Est. Priority Date: 12/30/2005
  • Status: Active Grant
First Claim
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1. In a packet processing engine of a device, the packet processing engine processing a network packet comprising at least one dynamically generated object and storing the at least one dynamically generated object in a cache, a method for invalidating a cached dynamically generated object in the cache responsive to a signal of a packet processing timer, the method comprising the steps of:

  • (a) receiving, by a packet processing engine of a device, a first signal from a packet processing timer directing the packet processing engine to process an incoming network packet, the first signal providing a time for expiration of a cached dynamically generated object of less than or equal to a duration of time to dynamically generate and serve the dynamically generated object from an originating server;

    (b) processing, by the packet processing engine, the incoming network packet responsive to the first signal; and

    (c) transmitting, by the packet processing engine responsive to the first signal, a second signal to a cache indicating a cached dynamically generated object is invalid.

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