2012•Unpublished venueRequires access

An Overview of IP Multicast and Multicast Principles

Daniel Minoli

Abstract

This chapter provides an overview of multicast principles and internet protocol (IP) Multicast in the IPv4 environment. In traditional IP networks, it is not possible to generate a single transmission of data when this data is destined for a (large) group of remote devices. IP Multicast, an extension to IP, is required to efficiently support these communications needs; as the term implies, IP Multicast has been developed to support efficient communication between a source and multiple remote destinations. The chapter also discusses several mechanisms involved in multicast transmission. Routing protocols that may be utilized include: the protocol independent multicast (PIM), the distance vector multicast routing protocol (DVMRP), the multicast extensions to open shortest path first (MOSPF), and core-based trees (CBT). PIM is currently the most widely used protocol. Internet group management protocol (IGMP) is used by host receivers to join or leave a multicast host group. Controlled Vocabulary Terms Internet protocol multicast; multicast communication; routing protocols

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Key concepts: Protocol Independent Multicast, Distance Vector Multicast Routing Protocol, Xcast, Multicast, IP multicast, Computer network, Source-specific multicast, Pragmatic General Multicast