Performance of IP Multicast in MPLS using PIM-SM (Protocol Independent Multicast-Sparse Mode)

Multi Protocol Label Switching (MPLS), providing traffic engineering and QoS capability support in IP network, and Protocol Independent Multicast – Sparse Mode (PIM-SM), using two modes of multicast transmission to adapt with network requirement, are the leader in their firm. To combine these two technologies provides an opportunity for service provider to distribute new services from their contemporary network. This work is focusing on the fabrication of multicasting support framework using PIM-SM in MPLS domain. The simulation is used to verify the framework and illustrate its performance competence. Based on the simulation results, Shortest-Path Tree (SPT) multicast transmission offers the best performance, tradingoff with the size of state database in each router. RP-rooted shared Tree (RPT) multicast achieves the suitable performance in the case that state database size needs to be concerned. Furthermore, bandwidth sharing problem can be eliminated using ConnectionOriented with QoS guarantee in MPLS network for the premium services.