((Routing loop case (take you to experience the super fun routing loop)) /zt/8828~~~Network Road Blog Collection ccieh3c~~Conditional common sense Two-point two-way redistribution is a very risky operation, if the configuration is not appropriate There may be loops. Specifically, there are two situations: 1. In the process of route convergence, the calculation of the route is wrong, resulting in a loop. 2. The loop is directly caused by improper configuration parameters.)