Stuck-in-Active Routes

When a router queries its neighbors about a route, the route is placed in active mode. (The router is actively seeking a path to this destination.) A route that has remained active for three minutes is called stuck-in-active. When a route is stuck-in-active, the neighbor that has not answered is reinitialized, effectively clearing the stuck-in-active state.

There are many reasons a route could be in the stuck-in-active state; the reason that is most likely is a poorly performing link (or a series of borderline links) in the query path. Other possibilities include either a router that cannot immediately answer the query (being out of memory or having high CPU utilization are common problems), or the network is simply so ...

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