A modified genetic algorithm for the optimization of aggregated multicast

The large-scale increase of multicast state is the major factor preventing the wide application of multicast when there are a large number of multicast groups in the network. As a new technology of reducing forwarding states of multicast state, aggregated multicast aims to enable the multicast groups that can be integrated in the network to share one distribution tree, which reduces the number of multicast trees, thus leading to the reduction of forwarding states and improvement of network performance. A modified genetic algorithm is proposed in this paper to optimize aggregated multicast problem. Simulation results indicate that network performance is improved greatly when applying this algorithm.