该项目旨在开发可扩展的主机Yoid等多种应用层组播

The Yoid project aims to develop scalable host-based distribution protocols which are layered over reasonably constructed tree topologies. The trees are constructed by the participating hosts and may use either native IP multicast, unicast tunnels, or a combination of both. Unlike the MBone, which is constructed using both native multicast and tunnels, Yoid is purely a host-based routing infrastructure.