Routing VoIP Traffic in Large Networks

Providing quality of service should be one of the main objectives when deploying sensitive applications into the network. Since network performance parameters are subject to frequent change, in this paper the authors propose a novel approach to routing sensitive VoIP traffic in large networks. Their approach takes measured delay and jitter into consideration and they establish an overlay of the original network to route primarily VoIP traffic. They achieve this by first modeling the probability distributions of network performance parameters and then by calculating the best paths by means of modified Dijkstra's and Kruskal's algorithms.