Which is a characteristic of a successor route in EIGRP?

A characteristic of a successor route in EIGRP (Enhanced Interior Gateway Routing Protocol) is that it serves as the primary route to the destination. This means that when EIGRP determines the best path to a destination network, the route selected becomes the successor route, which is utilized for sending packets to that destination.

Successor routes are determined based on the lowest metric (calculated using factors like bandwidth, delay, reliability, load, and MTU) among the available paths. If EIGRP only has one route to a destination with the best metric, that route is classified as a successor. In this primary role, it ensures the most efficient and reliable path is used for routing decisions.

This differs from what a feasible successor would represent, which is a backup route that can be used if the primary successor route becomes unavailable. Understanding this distinction is crucial for effective EIGRP operations and network resilience.

Overall, the identification of the successor route as the primary path emphasizes the importance of concise and efficient routing as well as the dynamic nature of EIGRP's route optimization capabilities.