Hierarchical routing

Compared with the distance vector (DV) routing algorithm, what are the disadvantages of Dijkstra’s shortest path algorithm?

What routing tasks can be performed by a router with the DV routing algorithm?

What is hierarchical routing? How does NAT work? What are the usages of NAT?

When will fragments be reassembled?

What are the advantages and disadvantages of static routing?

What criteria can be possibly used to measure an optimal route?

What are the two major algorithms for calculating an optimal route?

What routing tasks can be performed by the routing protocol OSPF?

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