Currently, Internet routing protocol is single path routing, data transmits along a single path, this will bring large routing overhead and the network delay, and also will cost congestion easily.

现在的互联网络应用大多是使用单路由协议，数据采用单路径方式进行传递，由于数据沿着一条路径传输，路由开销和网络延迟较大，在负载较大的时候容易引起拥塞。

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