Some routing protocols can even use multiple paths when paths have an unequal cost.

某些路由协议甚至在各个通路费用不相等时也可以使用多个通路。

youdao

The problem in multipath routing is that it is much more difficult to find multiple node-disjoint paths because of the lack of an accurate network topology.

在没有精确的网络拓扑结构情况下，找出多条不相交路径是比较困难的。

youdao