DINloop Based Inter-Domain Multicast With MPLS

To overcome the existing scalability problems, DINloop (Data-In-Network loop) based multicast with MPLS (multiprotocol label switching) is proposed to optimize inter-domain multicast. In this approach, multiple DIN Nodes in the core network form the DINloop using MPLS so that multiple multicast sessions share a single DINloop. A label stack method is adopted to use fewer labels and Label Switch Paths (LSPs) are established between DIN Nodes to create the DINloop. Packet Processing Module analyzes the coming multicast packet and MPLS Manager assigns a label stack to it. Simulations show that DINloop based multicast uses the least message load needed to form the multicast architecture.