Load balancing algorithms in MPLS traffic engineering

Abstract

This paper present three load-balancing algorithms for multiprotocol label switching (MPLS) traffic engineering: topology-based static load-balancing algorithm (TSLB), resource-based static load-balancing algorithm (RSLB) and dynamic load-balancing algorithm (DLB). We also evaluate the performance of these algorithms using NS-2 simulator. The simulation results show that the performance of our algorithms is better than the traditional shortest path algorithm. Moreover, the performance of RSLB and DLB is much better than the performance of TSLB. Although the proposed three load balancing algorithms are only suitable for non-priority unicast traffic, they can be easily extended for priority traffic conditions. The load balancing algorithms under multicast priority conditions are the subject for further study.