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

Considering a wireless local area network for the multicast agent according to the invention 1: N overlay multicast network configuration method and a multicast agent is viewed normal operation, but the subscription request to the session manager, the multicast agents signed up for the session and session the method comprising the agent that is not multicast a first database for the entry; A multicast step in which the agent comprises a second database for the list of paths from the root of the tree they belong to, the vertical relationship of the tree, that is not the list, the verification of the verification neighboring nodes neighboring node in the entry; Step multicast agent to join the overlay network; Steps to ensure the information on the neighboring multicast agent; Setting a multicast agent is determined at the best on the basis of the obtained information to the parent node; And if the multicast agents to provide an improved tree than the current tree discovery step of changing the parent node; it characterized in that it comprises an easily multicast in a wireless environment with little or no modification of the existing internet router devices It can be introduced. Overlay multicast, application layer multicast overlay tree