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Table of Contents
1 Multicast Overview·······································································································································1
Multicast Overview·····································································································································1
Information Transmission in the Unicast Mode··················································································1
Information Transmission in the Broadcast Mode··············································································2
Information Transmission in the Multicast Mode················································································3
Roles in Multicast ·······························································································································3
Common Notations in Multicast··········································································································4
Advantages and Applications of Multicast··························································································5
Multicast Models ········································································································································5
Multicast Architecture·································································································································6
Multicast Address ·······························································································································6
Multicast Protocols ·····························································································································9
Multicast Packet Forwarding Mechanism ································································································10
Implementation of the RPF Mechanism ···························································································11
RPF Check ·······································································································································11
2 Common Multicast Configuration···············································································································1
Common Multicast Configuration···············································································································1
Enabling Multicast Packet Buffering···································································································1
Enabling Multicast Routing·················································································································2
Configuring Limit on the Number of Routing Entries··········································································2
Configuring Suppression on the Multicast Source Port······································································3
Clearing Multicast Forwarding and Routing Entries···········································································3
Configuring a Multicast MAC Address Entry ······················································································4
Configuring Dropping Unknown Multicast Packets ············································································5
Tracing a Multicast Path·····················································································································5
Displaying and Maintaining Common Multicast Configuration···································································5
3 IGMP Configuration······································································································································1
IGMP Overview··········································································································································1
IGMP Versions ···································································································································1
Work Mechanism of IGMPv1··············································································································1
Enhancements Provided by IGMPv2 ·································································································3
Enhancements Provided by IGMPv3 ·································································································3
IGMP Proxy ········································································································································5
Configuring IGMP·······································································································································6
IGMP Configuration Task List ············································································································6
Enabling IGMP ···································································································································6
Configuring IGMP Version··················································································································7
Configuring Options Related to IGMP Query Messages····································································7
Configuring the Maximum Allowed Number of Multicast Groups·······················································9
Configuring a Multicast Group Filter···································································································9
Configuring Simulated Joining··········································································································10
Configuring IGMP Proxy···················································································································11
Removing Joined IGMP Groups from an Interface ··········································································12
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