An Efficient System for Traffic Control in Networks Using Virtual Routing Topologies

Traffic Engineering (TE) is an important aspect of contemporary network management. Offline traffic engineering approaches aim to optimize network resources in a static manner, but require accurate estimation of traffic matrices in order to produce optimized network configurations for long-term operation. In order to avoid network congestion and subsequent service disruptions, handling traffic dynamics is one of the key tasks performed by many contemporary network management systems. In this paper, we introduce AMPLE (Adaptive Multi-toPoLogy traffic Engineering), a holistic system based on virtualized IGP routing topologies for dynamic traffic engineering. The fundamental idea behind this approach follows the strategy of offline provisioning of multiple diverse paths in the routing plane and online spreading of the traffic load for dynamic load balancing in the forwarding plane.