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We propose a scheme for hierarchical overlay multicast based on IP topology awareness and host group model called PAM (practical topology-aware overlay multicast). PAM is remarkably different from the previous overlay multicast or ALM (application layer multicast) schemes in the following aspects. First, instead of end-host, DR (designated router) builds overlay DDT (data delivery tree) by adopting...
This paper presents a novel technique for providing non-stop IP-based television broadcasting service on ISP's multicast network. Although ISP network is highly available in terms of both data link and network layers, the recovery time from some network layer trouble may be intolerable to provide broadcasting service. We propose a gateway approach for providing loss-less backup multicast distribution...
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