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Method for configuring 1:N overlay multicast network of multicast agent in wireless LAN environment and multicast agent therefor

  • US 7,911,981 B2
  • Filed: 12/08/2006
  • Issued: 03/22/2011
  • Est. Priority Date: 12/08/2005
  • Status: Expired due to Fees
First Claim
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1. A method of configuring a 1:

  • N overlay multicast network considering a wireless local area network (WLAN) environment of a multicast agent, the method comprising;

    a session manger generating a first database with entries of multicast agents subscribing to a session and multicast agents that have applied for subscription to a session but have not been confirmed for normal operation;

    a multicast agent generating a second database with entries of a path from the root of a tree to which the multicast agent belongs, a hierarchical relation in the tree, the list of probed neighboring nodes, and a list of not-probed neighboring nodes;

    the multicast agent subscribing to the overlay network;

    obtaining information on neighboring multicast agents;

    setting a multicast agent which is determined to be optimal based on the obtained information, as a parent node; and

    if a multicast agent providing a tree improved from the current tree is found, changing the parent node.

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