End-host Multicast Project

Although people have deployed IP Multicast on the core routers and switches in the Internet recently, IP Multicast is still not widely available after being proposed over ten years. Therefore, there has been a trend of moving multicast support from the network layer into the application layer. There have been many studies to design, implement and evaluate various protocols for end-host multicast. An end-host multicast protocol builds an application-level overlay that connects members in a multicast group through unicast connections. Members in the multicast group then use this overlay for the delivery of multicast content.

The key issues in building the application overlay are how to reduce the performance penalty and how to minimize the duplicate packets going through the same physical link. In this page, we present our effort to build an efficient and scalable end-host mulitcast protocol.

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