Overview

Welcome to the world of IP Multicast! In computer networking, multicast is group communication where data transmission is addressed to a group of destination computers simultaneously. Multicast can be one-to-many or many-to-many distribution. Group communication may either be application layer multicast or network-assisted multicast, where the latter makes it possible for the source to efficiently send to the group in a single transmission. Copies are automatically created in other network elements, such as routers, switches , but only to network segments that currently contain members of the group. Network assisted multicast may be implemented at the data link layer using one-to-many addressing and switching such as Ethernet multicast addressing. Network-assisted multicast may also be implemented at the Internet layer using IP multicast. In IP multicast the implementation of the multicast concept occurs at the IP routing level, where routers create optimal distribution paths for datagrams sent to a multicast destination address.Contents at a Glance1 Introduction to Multicast , Multicast IP Addresses2 Mapping IP Multicast to MAC Addresses3 IGMPv1 Concepts and Configuration4 IGMPv1 Limitations and IGMPv2 Benefits5 IGMPv2 Concepts and Configuration6 IGMPv3 Concepts and Configuration7 IGMPv3 Lite and URL Rendezvous Directory (URD)8 CGMP ( Cisco Group Management Protocol )9 IGMP Snooping Concepts and Configuration10 IGMP Snooping and RGMP11 IGMP Proxy Concept Compatibility between IGMP Versions12 PIM Dense Mode Concepts13 PIM Dense Mode Configuration14 PIM DM , Prune Override , Assert Message , DR Election15 PIM Sparse Mode Concepts and Configuration 16 PIM Sparse Mode Auto RP 17 PIM SM BSR ( BootStrap Router ) Concepts and Configuration18 PIM SM , Anycast RP with MSDP19 IGMP Querier PIM DR PIM Forwarder20 Multicast Routing Protocols Classification21 Bidirectional PIM Static RP , AutoRP ,BSR22 PIM Source Specific Multicast (SSM)23 SSM Mapping ,Static DNS Query Concepts and Configuration24 Multicast Stub Routing and IGMP Helper25 IGMP Proxy Concepts and Configuration26 Multicast Scoping , TTL Scoping , Administrative Scoping

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