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Redundant routing with deadlines in data networks

  • US 6,661,775 B1
  • Filed: 08/05/1999
  • Issued: 12/09/2003
  • Est. Priority Date: 08/05/1999
  • Status: Expired due to Term
First Claim
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1. A computer implemented method of transmitting a file within a time deadline from an origin to a destination connected to a computer network, comprising the steps of:

  • inputting at the origin network information, the network information comprising an identity of physical links between the origin and destination and performance parameters associated with each link;

    computing a virtual network topology based on the physical link information, the virtual topology including a plurality of virtual links between the origin and destination;

    splitting the file into a plurality of fixed-size pieces to be transmitted to the destination over respective virtual links and reconstructed within the time deadline, each of the fixed-size pieces containing redundant information so that only a subset of the plurality of pieces is required to reconstruct the file; and

    transmitting the plurality of pieces to the destination over their respective virtual links.

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