Explaining EIGRP Feasible Successor

Focus Keyword: EIGRP feasible successor

EIGRP (Enhanced Interior Gateway Routing Protocol) uses a concept called feasible successor to provide backup routes for faster convergence and improved network resilience. A feasible successor is a route that meets the feasibility condition in EIGRP.

The feasibility condition states that for a route to be considered a feasible successor, the reported distance of the route through a neighbor must be less than the local router's feasible distance to the same route. This means the reported distance is considered to be a better metric than the current feasible distance.

Having feasible successors is crucial in EIGRP because they allow for loop-free backup paths to be readily available in case the successor route fails. This enhances the overall reliability and efficiency of the EIGRP routing protocol by ensuring seamless network connectivity and quick route convergence.