Sir

The following paper might help you .

One way to look at routing is finding the shortest path between two nodes and for millions of years ants have had success finding the shortest paths between food sources and their nest using only a pheromone trail laid by other ants . This is known as as stigmergy  and Ant Colony Optimization (ACO) routing, which is inspired from the actions of ants, have been shown useful for routing in wired networks