Description: The Feasibility Condition in EIGRP (Enhanced Interior Gateway Routing Protocol) is a fundamental rule that determines whether a route can be considered a feasible successor. In the context of EIGRP, a successor is a route that can be used to send traffic immediately, while a feasible successor is an alternative route that can be utilized if the primary successor fails. The Feasibility Condition is based on comparing the metrics of the routes. For a route to be considered a feasible successor, its metric must be lower than that of the primary successor. This ensures that the alternative route is viable and that traffic can be redirected smoothly in case the primary route becomes unreachable. This condition is crucial for maintaining stability and efficiency in the network, as it allows EIGRP to perform faster and more effective routing by having backup routes ready to be used. Implementing this rule helps prevent routing loops and optimizes network resource usage, which is especially important in dynamic network environments.
