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Lecture TCP-IP protocol suite (3/e): Chapter 15 - Behrouz Forouzan

Chapter 15 - Multicasting and multicast routing protocols. Upon completion you will be able to: Differentiate between a unicast, multicast, and broadcast message; know the many applications of multicasting; understand multicast link state routing and MOSPF; understand multicast link state routing and DVMRP; understand the Core-Based Tree Protocol; understand the Protocol Independent Multicast Protocols; understand the MBONE concept. | Chapter 15 Upon completion you will be able to: Multicasting and Multicast Routing Protocols Differentiate between a unicast, multicast, and broadcast message Know the many applications of multicasting Understand multicast link state routing and MOSPF Understand multicast link state routing and DVMRP Understand the Core-Based Tree Protocol Understand the Protocol Independent Multicast Protocols Understand the MBONE concept Objectives TCP/IP Protocol Suite 15.1 UNICAST, MULTICAST, AND BROADCAST A message can be unicast, multicast, or broadcast. Let us clarify these terms as they relate to the Internet. The topics discussed in this section include: Unicasting Multicasting Broadcasting Multicasting versus Multiple Unicasting TCP/IP Protocol Suite Figure 15.1 Unicasting TCP/IP Protocol Suite In unicasting, the router forwards the received packet through only one of its interfaces. Note: TCP/IP Protocol Suite Figure 15.2 Multicasting TCP/IP Protocol Suite In . | Chapter 15 Upon completion you will be able to: Multicasting and Multicast Routing Protocols Differentiate between a unicast, multicast, and broadcast message Know the many applications of multicasting Understand multicast link state routing and MOSPF Understand multicast link state routing and DVMRP Understand the Core-Based Tree Protocol Understand the Protocol Independent Multicast Protocols Understand the MBONE concept Objectives TCP/IP Protocol Suite 15.1 UNICAST, MULTICAST, AND BROADCAST A message can be unicast, multicast, or broadcast. Let us clarify these terms as they relate to the Internet. The topics discussed in this section include: Unicasting Multicasting Broadcasting Multicasting versus Multiple Unicasting TCP/IP Protocol Suite Figure 15.1 Unicasting TCP/IP Protocol Suite In unicasting, the router forwards the received packet through only one of its interfaces. Note: TCP/IP Protocol Suite Figure 15.2 Multicasting TCP/IP Protocol Suite In multicasting, the router may forward the received packet through several of its interfaces. Note: TCP/IP Protocol Suite Figure 15.3 Multicasting versus multiple unicasting TCP/IP Protocol Suite Emulation of multicasting through multiple unicasting is not efficient and may create long delays, particularly with a large group. Note: TCP/IP Protocol Suite 15.2 MULTICAST APPLICATIONS Multicasting has many applications today such as access to distributed databases, information dissemination, teleconferencing, and distance learning. The topics discussed in this section include: Access to Distributed Databases Information Dissemination Dissemination of News Teleconferencing Distance Learning TCP/IP Protocol Suite 15.3 MULTICAST ROUTING In this section, we first discuss the idea of optimal routing, common in all multicast protocols. We then give an overview of multicast routing protocols. The topics discussed in this section include: Optimal Routing: Shortest Path Trees Routing .