Path Restoration Schemes for MPLS Networks

The authors have presented an overview and simulation of several path restoration schemes for MPLS networks. Each scheme has its own advantages and disadvantages that make them appropriate for different applications. These characteristics include recovery time in case of failure, packet loss, packet reordering, and recovery delay. The decision of implementing some of these schemes in a real network depends on how much resources are available and the requirements of the network user´s. Furthermore, simulation results based on OMNET+ + show that the simple dynamic scheme has the lowest arrival time when compared to the other reported path restoration schemes. Future work will be focused on investigating further comparisons and enhancements of these schemes.