Netgear M4300-24X24F (XSM4348S) - Stackable Managed Switch with 48x10G including 24x10GBASE-T and 24xSFP+ Layer 3 Guia Do Administrador

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PIM 
556
Managed Switches 
Protocol Independent Multicast Concepts
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, and stock distribution tickers. 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