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Proximity enforcement in heterogeneous network environments

  • US 8,234,404 B2
  • Filed: 09/22/2009
  • Issued: 07/31/2012
  • Est. Priority Date: 05/22/2006
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving, at a content source from a sink, round trip time information of a first segment of a content propagation network established between the content source and the sink;

    determining whether a first round trip time of the first segment exceeds a proximity threshold, wherein the determination is based on the received round trip time information, and wherein the first segment is between the sink and an intermediate network device situated between the content source and the sink; and

    determining a second round trip time associated with a second segment of the network, wherein the determination of the second round trip time is based on a difference between a total round trip time between the content source and the sink and the first round trip time.

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