When a route is removed from the EIGRP network, which action does EIGRP take?

When a route is removed from the EIGRP network, the protocol seeks to maintain stable and efficient routing within the network. In this context, if a route goes down, EIGRP will replace it with a feasible successor, provided that a feasible successor exists in the topology.

A feasible successor is a backup route that meets specific criteria; it is a route that has a lower feasible distance than the route that has just been removed. This approach allows EIGRP to quickly converge and maintain routing efficiency without needing to perform a full route recalculation. By having this backup route, EIGRP minimizes downtime and maintains the integrity of the routing paths, thus ensuring that data can continue to flow smoothly across the network.

This mechanism is a key feature of EIGRP's ability to provide rapid convergence, as opposed to more traditional routing protocols that might take longer to reconverge or could require additional communication to identify new paths.