The MASC/BGMP Architecture for Inter-Domain Multicast Routing

Multicast routing enables e cient data distribution to multiple recipients. However, existing work has concentrated on extending single-domain techniques to wide-area networks, rather than providing mechanisms to realize inter-domain multicast on a global scale in the Internet. We describe an architecture for inter-domain multicast routing that consists of two complementary protocols. The Multicast Address-Set Claim MASC protocol forms the basis for a hierarchical address allocation architecture. It dynamically allocates to domains multicast address ranges from which groups initiated in the domain get their multicast addresses. The Border-Gateway Multicast Protocol BGMP, run by the border routers of a domain, constructs inter-domain bidirectional shared trees, while allowing any existing multicast routing protocol to be used within individual domains. The resulting shared tree for a group is rooted at the domain whose address range covers the group's address; this domain is t...

• Type: Conference
• Year: 1998
• Where: SIGCOMM
• Authors: Satish Kumar, Pavlin Radoslavov, David Thaler, Cengiz Alaettinoglu, Deborah Estrin, Mark Handley
• Keywords: Communications, Inter-domain Multicast, Multicast, Multicast Routing, SIGCOMM 1998