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Method for allocating data packet transmission among multiple links of a network, and network device and computer program product implementing the method

  • US 8,014,400 B2
  • Filed: 08/10/2007
  • Issued: 09/06/2011
  • Est. Priority Date: 08/10/2007
  • Status: Expired due to Fees
First Claim
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1. A method for distributing packets of a data stream in a network having at least two network links, each link connecting a source device to a destination device, the method comprising:

  • assigning one of said links as a primary link and another of said links as a backup link;

    transmitting data stream packets from the source device to the destination device on the primary link using a first set of communications protocols associated with said primary network link;

    transmitting a signal from the source device to the destination device on each link and receiving at the source device a return signal from the destination device on each link; and

    if the roundtrip time for said signal and return signal on the primary link (RTT-PL) is greater than the roundtrip time for said signal and return signal on the backup link (RTT-BL), thentransmitting a portion of the data stream packets from the source device to the destination device on the backup link using a second set of communications protocols associated with said backup network link, said second set of protocols being different from said first set of protocols.

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