NETGEAR M4100, M7100 manual Protocol-Independent-Multicast, PIM-SMon

Protocol-Independent-Multicast	28
28. PIM

This chapter provides the following examples:

•PIM-DM

•PIM-SMon page 460

Note: The PIM protocol can be configured to operate on IPv4 and IPv6 networks. Separate CLI commands are provided for IPv4 and IPv6 operation; however, most configuration options are common to both protocols. Therefore, this section describes only IPv4 configuration; IPv6 configuration is similar to IPv4.

Multicast protocols are used to deliver multicast packets from one source to multiple receivers. They facilitate better bandwidth utilization, and use less host and router processing, making them ideal for usage in applications such as video and audio conferencing, whiteboard tools, stock distribution tickers, and so on. PIM is a widely used multicast routing protocol. Protocol Independent Multicast (PIM) is a standard multicast routing protocol that provides scalable inter-domain multicast routing across the Internet, independent of the mechanisms provided by any particular unicast routing protocol. There are two types of PIM:

•PIM-Dense Mode (PIM-DM)

•PIM-Sparse Mode (PIM-SM)

PIM-DM

PIM-DM is appropriate for:

•Densely distributed receivers

•A ratio of few senders to many receivers (due to frequent flooding)

•High volume of multicast traffic

•Constant stream of traffic

Chapter 28. PIM 435