Reported Distance & Feasible Distance

Feasible Distance: The total path between a router and the next closest router + Sum of all cost.

Reported Distance is the distance (metric) towards a destination as advertised by an upstream neighbour.
Reported distance is the distance reported in the queries, the replies and the updates.
Reported Distance: The total path between a router and the next closest router

Feasible Distance & Successors

Feasible Distance: The total path between a router and the next closest router + Cost.
Successors is a neighboring router that has a least cost path to a destination.