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20
Overview
Introduction
User Guide for the Avaya P580 and P882 Multiservice Switches, v6.1
Managing Intelligent
Multicasting
The following information and procedures provided in this chapter pertain
to layer 2 and layer 3 module configurations:
Introduction
Configuring Intelligent Multicasting
Managing IGMP Snooping
Managing the LGMP Server
Managing the LGMP Client
Managing CGMP Snooping
For more information about the CLI commands that are mentioned in this
chapter, see Command Reference Guide for the Avaya P580 and P882
Multiservice Switches, Software Version 6.1
Intelligent multicasting refers to the forwarding of multicast traffic (packets
with a multicast destination MAC address) within a VLAN to a subset of
ports participating in that VLAN. It limits the forwarding of multicast traffic
to only those ports on the VLAN with clients that want to receive this
multicast traffic.
When disabled, intelligent multicasting floods layer 2 multicast traffic to all
ports on the VLAN on which the traffic is received.
All traffic that is sent to a particular multicast MAC address is said to be in
a multicast session. The switch supports 58 sessions per VLAN. Each
multicast session keeps track of which ports must receive that session's
multicast traffic within the VLAN. There are two types of ports: client ports
and router ports.
A client port is a port with an attached host configured to receive a multicast
session.
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