iv
Configuring multicast group replacement ··········································································································· 33
Configuring 802.1p precedence for IGMP messages ······················································································ 34
Configuring a multicast user control policy ········································································································ 35
Displaying and maintaining IGMP snooping ·············································································································· 36
IGMP snooping configuration examples ····················································································································· 36
Group policy and simulated joining configuration example ············································································ 36
Static port configuration example ······················································································································· 39
IGMP snooping querier configuration example ································································································· 42
IGMP snooping proxying configuration example ······························································································ 44
Multicast source and user control policy configuration example ····································································· 47
Troubleshooting IGMP snooping configuration ·········································································································· 52
Layer 2 multicast forwarding cannot function ···································································································· 52
Configured multicast group policy fails to take effect ······················································································· 53
Appendix (available only on the A5500 EI) ··············································································································· 53
Processing of multicast protocol messages ········································································································· 53
Multicast VLAN configuration ··································································································································· 55
Multicast VLAN overview ·············································································································································· 55
Multicast VLAN configuration task list ························································································································· 57
Configuring sub-VLAN-based multicast VLAN ············································································································ 57
Configuration prerequisites ·································································································································· 57
Configuring sub-VLAN-based multicast VLAN ···································································································· 57
Configuring port-based multicast VLAN ······················································································································ 58
Configuration prerequisites ·································································································································· 58
Configuring user port attributes ··························································································································· 58
Configuring multicast VLAN ports ······················································································································· 59
Displaying and maintaining multicast VLAN ·············································································································· 60
Multicast VLAN configuration examples ····················································································································· 60
Sub-VLAN-based multicast VLAN configuration ································································································· 60
Port-based multicast VLAN configuration ············································································································ 63
Multicast routing and forwarding configuration (available only on the A5500 EI) ·············································· 67
Multicast routing and forwarding overview ················································································································ 67
Introduction to multicast routing and forwarding ······························································································· 67
RPF check mechanism ··········································································································································· 67
Multicast static routes ············································································································································ 69
Multicast traceroute ··············································································································································· 71
Configuration task list ···················································································································································· 72
Enabling IP multicast routing ········································································································································· 72
Configuring multicast routing and forwarding ············································································································ 73
Configuration prerequisites ·································································································································· 73
Configuring multicast static routes ······················································································································· 73
Configuring a multicast routing policy ················································································································ 74
Configuring a multicast forwarding range ········································································································· 75
Configuring the multicast forwarding table size ································································································ 75
Tracing a multicast path ······································································································································· 76
Displaying and maintaining multicast routing and forwarding ················································································ 77
Configuration examples ················································································································································ 78
Changing an RPF route ········································································································································· 78
Creating an RPF route ··········································································································································· 80
Troubleshooting multicast routing and forwarding ····································································································· 82
Multicast static route failure ·································································································································· 82
Multicast data fails to reach receivers ················································································································ 83
IGMP configuration (available only on the A5500 EI) ··························································································· 84
IGMP overview ······························································································································································· 84
IGMP versions ························································································································································ 84
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