A Junos device is configured with multiple routing protocols to the same destination prefix. By default, which route will be active in the forwarding table?

In Junos devices, when multiple routing protocols are configured to reach the same destination prefix, the route that will be active in the forwarding table by default is the static route. Static routes are given preference over dynamic routes because they are often considered more reliable; they are manually set and do not change unless explicitly modified. This preference is rooted in the hierarchy of route preference values assigned by Junos OS.

Static routes have a default preference value of 5, which is lower than those assigned to most dynamic routing protocols. As a result, when both static and dynamic routes exist to the same destination, the static route will take precedence and be used for forwarding traffic. This functionality is instrumental in network design where administrators want to ensure a specific path is taken, despite the presence of dynamically learned routes.

Dynamic routes, while valuable for their adaptability and efficiency in responding to network changes, are overridden by any static routes configured to the same destination. Local routes pertain to the routes associated with the device's local interfaces and serve a different purpose. BGP routes, while powerful for inter-domain routing, also fall behind static routes in preference. Therefore, the fundamental nature of static routes and their default preference value in the routing table confirms why the static route would be the