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Distributed presence management in peer-to-peer networks

  • US 7,876,698 B2
  • Filed: 07/18/2007
  • Issued: 01/25/2011
  • Est. Priority Date: 07/20/2006
  • Status: Expired due to Fees
First Claim
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1. A method for providing actual presence information about a peer of a plurality of peers that form a peer-to-peer network, the peer having a neighbor partner peer, the method comprising:

  • the neighbor partner peer detecting actual presence information of the peer;

    providing and retrieving the actual presence information about the peer;

    the neighbor partner peer continuously detecting whether the peer disappears and upon the disappearance of the peer the neighbor partner peer propagating the actual presence information of the disappearance to other peers forming the peer-to-peer network;

    the peer providing a list of nodes in the peer-to-peer network which should be informed of the disappearance of the peer; and

    the neighbor partner peer propagating the presence information of the peer to the nodes in the list of nodes.

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