MPLS Network Tuning: Enabling Hitless Network Engineering

In this paper, we explore the requirements on management systems to support tuning. While network design tools have similar goals, the additional requirement for online, hitless optimization fundamentally changes the nature of the problem. We present an efficient algorithm for network tuning called MobiTree. Using extensive simulation results, we show that the greedy approach in MobiTree outperforms traditional traffic design schemes. More importantly, it achieves the gains while ensuring a hitless reconfiguration. Moreover, it has low computational overhead, making it cheap to implement in practice.