3Com S7906E Configuration Manual page 992

1 IGMP Configuration ···································································································································1-1
IGMP Overview ·······································································································································1-1
IGMP Versions ································································································································1-1
Introduction to IGMPv1····················································································································1-2
Enhancements in IGMPv2···············································································································1-3
Enhancements in IGMPv3···············································································································1-4
IGMP SSM Mapping························································································································1-5
IGMP Proxying ································································································································1-6
Multi-Instance IGMP ························································································································1-7
Protocols and Standards ·················································································································1-7
IGMP Configuration Task List ·················································································································1-8
Configuring Basic Functions of IGMP ·····································································································1-8
Configuration Prerequisites ·············································································································1-8
Enabling IGMP ································································································································1-9
Configuring IGMP Versions···········································································································1-10
Configuring Static Joining··············································································································1-10
Configuring a Multicast Group Filter······························································································1-11
Configuring the Maximum Number of Multicast Groups on an Interface ······································1-11
Adjusting IGMP Performance ···············································································································1-12
Configuration Prerequisites ···········································································································1-12
Configuring IGMP Message Options·····························································································1-12
Configuring IGMP Query and Response Parameters ···································································1-13
Configuring IGMP Fast Leave Processing ····················································································1-16
Configuring IGMP SSM Mapping··········································································································1-16
Configuration Prerequisites ···········································································································1-16
Enabling SSM Mapping ·················································································································1-16
Configuring SSM Mappings···········································································································1-17
Configuring IGMP Proxying ··················································································································1-17
Configuration Prerequisites ···········································································································1-17
Enabling IGMP Proxying ···············································································································1-18
Configuring Multicast Forwarding on a Downstream Interface ·····················································1-18
Displaying and Maintaining IGMP·········································································································1-19
IGMP Configuration Examples··············································································································1-20
Basic IGMP Functions Configuration Example ·············································································1-20
SSM Mapping Configuration Example ··························································································1-22
IGMP Proxying Configuration Example·························································································1-25
Troubleshooting IGMP ··························································································································1-27
No Membership Information on the Receiver-Side Router ···························································1-27
Inconsistent Memberships on Routers on the Same Subnet ························································1-28
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