3Com S7906E Configuration Manual page 1186

1 IGMP Snooping Configuration ·················································································································1-1
IGMP Snooping Overview·······················································································································1-1
Principle of IGMP Snooping ············································································································1-1
Basic Concepts in IGMP Snooping ·································································································1-2
How IGMP Snooping Works············································································································1-4
IGMP Snooping Proxying ················································································································1-6
Processing of Multicast Protocol Messages····················································································1-7
Protocols and Standards ·················································································································1-7
IGMP Snooping Configuration Task List·································································································1-8
Configuring Basic Functions of IGMP Snooping·····················································································1-9
Configuration Prerequisites ·············································································································1-9
Enabling IGMP Snooping ················································································································1-9
Configuring the Version of IGMP Snooping ··················································································1-10
Configuring the Maximum Number of Global IGMP Forwarding Entries ······································1-10
Configuring IGMP Snooping Port Functions·························································································1-11
Configuration Prerequisites ···········································································································1-11
Configuring Aging Timers for Dynamic Ports ················································································1-11
Configuring Static Ports·················································································································1-12
Configuring Simulated Joining·······································································································1-13
Configuring Fast Leave Processing ······························································································1-14
Configuring IGMP Snooping Querier ····································································································1-15
Configuration Prerequisites ···········································································································1-15
Enabling IGMP Snooping Querier ·································································································1-15
Configuring IGMP Queries and Responses ··················································································1-15
Configuring Source IP Address of IGMP Queries ·········································································1-17
Configuring IGMP Snooping Proxying ··································································································1-17
Configuration Prerequisites ···········································································································1-17
Enabling IGMP Snooping Proxying ·······························································································1-17
Configuring a Source IP Address for the IGMP Messages Sent by the Proxy ·····························1-18
Configuring an IGMP Snooping Policy··································································································1-18
Configuration Prerequisites ···········································································································1-18
Configuring a Multicast Group Filter······························································································1-18
Configuring Multicast Source Port Filtering ···················································································1-19
Configuring the Function of Dropping Unknown Multicast Data····················································1-20
Configuring IGMP Report Suppression ·························································································1-21
Configuring Maximum Multicast Groups that Can Be Joined on a Port········································1-22
Configuring Multicast Group Replacement····················································································1-22
Configuring 802.1p Precedence for IGMP Messages···································································1-23
Displaying and Maintaining IGMP Snooping·························································································1-24
IGMP Snooping Configuration Examples ·····························································································1-25
Group Policy and Simulated Joining Configuration Example························································1-25
Static Port Configuration Example ································································································1-27
IGMP Snooping Querier Configuration Example ··········································································1-31
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