An urgent problem to be solved is how to switch to another exterior link to keep the net working in order when this one does not work . ROUTE-MAP program is a practical means for its solution .
如何实现在一条外部链路出现故障后，可以迅速切换至另一条外部链路，使校园网正常、有序地工作是我们亟待解决的问题，ROUTE-MAP就是一种简便可行的方案。
route-map