Abstract:

The problems of combining multi protocol label switching （MPLS） with multicast were studied. Based on the receiver data-driven label distribution, a new mechanism was proposed about how to construct a label switched path （LSP）multicast routing tree in the MPLS domain. The joining, pruning and multicast packets forwarding algorithms were presented. In addition, the MPLS module of network simulator was modified for the MPLS multicast simulation. Analysis of performance and simulation results show that, comparing with traditional multicast, MPLS multicast can take advantage of the fast forwarding feature of MPLS to reduce the packet-delay from source to destination effectively.

Key words: multi protocol label switching, multicast, label switched path