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Method and apparatus to reduce the cost of preparing the checksum for out bound data in network communication protocols by caching

  • US 6,412,092 B1
  • Filed: 04/14/1999
  • Issued: 06/25/2002
  • Est. Priority Date: 04/14/1999
  • Status: Expired due to Fees
First Claim
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1. A method for re-using a checksum in a computer system coupled to a network, said method comprising:

  • managing data in said computer system for transmission over said network;

    associating said data with a checksum derived for a first instance of data transmission over said network;

    identifying whether said checksum is valid for a second instance of data transmission by determining whether said data is unaltered since said first instance of data transmission; and

    re-using said checksum during said second instance of data transmission over said network when said checksum is valid.

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