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Method and system for creating and utilizing common caches for internetworks

  • US 5,878,218 A
  • Filed: 03/17/1997
  • Issued: 03/02/1999
  • Est. Priority Date: 03/17/1997
  • Status: Expired due to Term
First Claim
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1. An improved method for accessing a most recent version of a requested data file that has been downloaded into a private network from a source external to said private network, said method comprising the steps of:

  • establishing a network of computers as private relative to one or more other networks of computers;

    specifying one or more computers within said defined private network as defining a common cache;

    caching within said defined common cache a copy of a first data file entering said defined private network from a source external to said defined private network;

    caching within said defined common cache a copy of a second data file entering said defined Private network from a source external to said defined private network, wherein said second data file is a most recent version of said first data file and has some content different from said first data file;

    in response to a request from a computer within said defined private network for a specific data file which originates from a source external to said defined private network, determining that said requested specific data file corresponds to said first and second data files resident within said defined common cache; and

    in response to said determining step, obtaining a most recent version of said requested specific data file by transmitting the second data file which is resident within said defined common cache.

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