iii
IGMP configuration task list ·········································································································································· 82
Configuring basic IGMP functions ······························································································································· 83
Enabling IGMP ······················································································································································ 83
Configuring IGMP versions ·································································································································· 83
Configuring static joining ····································································································································· 84
Configuring a multicast group filter ····················································································································· 84
Setting the maximum number of multicast groups that an interface can join ················································· 85
Adjusting IGMP performance ······································································································································· 85
Configuration prerequisites ·································································································································· 85
Configuring Router-Alert option handling methods ···························································································· 86
Configuring IGMP query and response parameters ·························································································· 87
Configuring IGMP fast-leave processing ············································································································ 89
Enabling the IGMP host tracking function ·········································································································· 89
Setting the DSCP value for IGMP messages ······································································································· 89
Configuring IGMP SSM mapping ································································································································ 90
Enabling SSM mapping ········································································································································ 90
Configuring SSM mappings ································································································································· 90
Configuring IGMP proxying ········································································································································· 90
Enabling IGMP proxying ······································································································································ 91
Configuring multicast forwarding on a downstream interface ········································································· 91
Displaying and maintaining IGMP ······························································································································· 92
IGMP configuration examples ······································································································································ 93
Basic IGMP functions configuration example ····································································································· 93
SSM mapping configuration example ················································································································ 95
IGMP proxying configuration example ··············································································································· 98
Troubleshooting IGMP ················································································································································· 100
No membership information on the receiver-side router ················································································· 100
Inconsistent memberships on routers on the same subnet ··············································································· 101
Configuring PIM ······················································································································································ 102
PIM overview ································································································································································ 102
PIM-DM overview ················································································································································ 102
PIM-SM overview ················································································································································· 105
Administrative scoping overview ······················································································································· 110
PIM-SSM overview ··············································································································································· 112
Relationships among PIM protocols ·················································································································· 113
Protocols and standards ····································································································································· 114
Configuring PIM-DM ···················································································································································· 114
PIM-DM configuration task list···························································································································· 114
Configuration prerequisites ································································································································ 114
Enabling PIM-DM ················································································································································· 115
Enabling state-refresh capability ························································································································ 115
Configuring state-refresh parameters ················································································································ 115
Configuring PIM-DM graft retry period ············································································································· 116
Configuring PIM-SM····················································································································································· 117
PIM-SM configuration task list ···························································································································· 117
Configuration prerequisites ································································································································ 117
Enabling PIM-SM ················································································································································· 118
Configuring an RP ··············································································································································· 118
Configuring a BSR ··············································································································································· 120
Configuring administrative scoping ·················································································································· 124
Configuring multicast source registration·········································································································· 126
Disabling the switchover to SPT ························································································································· 127
Configuring PIM-SSM ·················································································································································· 127
PIM-SSM configuration task list ·························································································································· 127
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