For a given number of nodes, which among Mesh and Bus topologies would be expensive to set up?

Question

I have a stringent requirement to configure a router at run time to change the route of data for set of IPs automatically not human intervention. And if it is possible then how much time it will take since there is a time constraint for the Data plane.

Answer 1

Mesh topology would generally be more expensive to set up than Bus topology. In Mesh, all nodes are connected to each other. This would add enormously number of links between nodes. This is not the case with Bus topology.