Load-Aware Anycast Routing in IP-Over-WDM Networks

In this paper, the authors propose anycast routing methods to improve the performance of reconfigurable WDM networks under the variations in the IP traffic. They first investigate anycast communication via Impairment-Aware Anycast Routing (IAAR); their simulation results show significant improvement in the blocking probability. They also investigate the proposed Load-Aware Anycast Routing (LAAR) for the varying traffic model. From the results they observe that LAAR minimizes the lightpath request loss, by dynamically choosing the anycast configuration based on the network load.