The objective of this paper is to introduce the reader to the world of IP multicasting. I intend to achieve this goal by providing an introduction that bridges the gap between the existing unicast networks and the developing multicast network. The basics of multicast that is covered in the earlier chapter includes the multicast addressing scheme, different protocols used for multicast transmission, various distribution trees that are formed by these protocols and various aspects of multicast forwarding. We take a look at IGMP which is the protocol that runs between the host devices and their first hop multicast routers, enabling the host to join/leave a multicast group. The protocols used for running IP multicast over networks are discussed in detail with additional emphasis on PIM-SM which is the most common among the available selection. The paper concludes with a general overlook on the avenues where multicasting could play a major role benefitting the Internet Service Providers and eve large corporate networks, and a glance on the pros and cons of multicasting.
Department, Program, or Center
Electrical, Computer and Telecommunications Engineering Technology (CAST)
Fulle, Ronald G.
Indelicato, Mark J.
Johnson, William P.
Vidyadharan Girija, Ganesh, "Introduction to IP multicast in production networks" (2011). Thesis. Rochester Institute of Technology. Accessed from
RIT – Main Campus