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IP manages multicast traffic by using switches, routers, and hosts that support IGMP. Enabling IGMP allows the ports
to detect IGMP queries and report packets and manage IP multicast traffic through the switch. IGMP have three
fundamental types of message as follows:
Message
Description
A message sent from the carrier (IGMP router or switch) asking for a response from
Query
each host belonging to the multicast group.
A message sent by a host to the carrier to indicate that the host wants to be or is a
Report
member of a given group indicated in the report message.
Leave
A message sent by a host to the carrier to indicate that the host has quit to be a m
Group
ember of a specific multicast group.
24VDSL+2Giga Ethernet Managed 4 Band VDSL IP DSLAM USER'S MANUAL Ver. A.4
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