This paper gives several solutions of multicast route table lookup based on source-based route structure. And it gives experiment results and performance comparisons.

该文提出了几种基于源转发树路由结构的多播路由表查找方案，并给出实验结果比较。

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If the route table lookup shows that the packet is destined for a non-local subnet, the router forwards the packet to the next-hop router using the next-hop router's MAC address.

如果查找路由表显示包的目的地不在本地子网，路由器就利用下一跳路由器的MAC地址把包转发给下一跳路由器。

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If the route table lookup shows that the packet is destined for a nonlocal subnet, the router forwards the packet to the next-hop router using the next-hop router's MAC address.

如果查找路由表显示包的目的地不在本地子网，路由器就利用下一跳路由器的MAC地址把包转发给下一跳路由器。

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