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Data tracing identifiers

  • US 20030115356A1
  • Filed: 12/14/2001
  • Published: 06/19/2003
  • Est. Priority Date: 12/14/2001
  • Status: Active Grant
First Claim
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1. A method of sending data from a first computer to a second computer connected within a network, the first computer having one or more data communication protocol layers that correspond to one or more data communication protocol layers in the second computer, the one or more protocol layers comprising at least a first protocol layer and a second protocol layer, the method comprising:

  • (a) attaching a first header to the data at the first protocol layer of the first computer;

    (b) reserving a space in the first header for an identifier;

    (c) sending the data and the first header from the first protocol layer to the second protocol layer of the first computer;

    (d) repeating steps (a)-(b) for a second header;

    (e) generating the identifier at the second protocol layer;

    (f) storing the identifier in the reserved space of the first header and in the reserved space of the second header;

    (g) sending the data with the first header and the second header from the second protocol layer of the first computer to its corresponding second protocol layer of the second computer over the network;

    (h) removing the second header from the data at the second protocol layer of the second computer;

    (i) copying the identifier from the reserved space in the second header to the reserved space in the first header;

    (j) sending the data and the first header from the second protocol layer of the second computer to the first protocol layer of the second computer; and

    (k) removing the first header from the data at the first protocol layer of the second computer.

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