5. EIGRP DUAL network convergence algorithm.
FD: the best path to the target network
AD: the next hop of the optimal path to the destination network
Successor:FD 's AD Router
Fesible Successor:AD
< Successor的FD
FD: the best path to the target network
AD: the next hop of the optimal path to the destination network
Successor:FD 's AD Router
Fesible Successor:AD
< Successor的FD
