The protocol can search multiple feasible tree branches, and select the optimal or near optimal branch for connecting the new receiver to the multicast tree if it exists.
该协议可搜索多条可行树枝,并能选择一条最优(或近优)树枝将新成员连接到多播树。
2
In the problems of minimax treesearch, what we are looking for is often the optimal branch at the root node.