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[SwitchA] interface vlan-interface 101
[SwitchA-Vlan-interface101] pim dm
[SwitchA-Vlan-interface101] quit
# On Switch B, enable IP multicast routing.
<SwitchB> system-view
[SwitchB] multicast routing
[SwitchB-mrib] quit
# Enable IGMP on VLAN-interface 200 (the interface that connects to the stub network).
[SwitchB] interface vlan-interface 200
[SwitchB-Vlan-interface200] igmp enable
[SwitchB-Vlan-interface200] quit
# Enable PIM-DM on VLAN-interface 201.
[SwitchB] interface vlan-interface 201
[SwitchB-Vlan-interface201] pim dm
[SwitchB-Vlan-interface201] quit
# On Switch C, enable IP multicast routing.
<SwitchC> system-view
[SwitchC] multicast routing
[SwitchC-mrib] quit
# Enable IGMP on VLAN-interface 200 (the interface that connects to the stub network).
[SwitchC] interface vlan-interface 200
[SwitchC-Vlan-interface200] igmp enable
[SwitchC-Vlan-interface200] quit
# Enable PIM-DM on VLAN-interface 202.
[SwitchC] interface vlan-interface 202
[SwitchC-Vlan-interface202] pim dm
[SwitchC-Vlan-interface202] quit
4. Configure a multicast group filter on Switch A so that the hosts connected to VLAN-interface 100
can join the multicast group 224.1.1.1 only.
[SwitchA] acl number 2001
[SwitchA-acl-basic-2001] rule permit source 224.1.1.1 0
[SwitchA-acl-basic-2001] quit
[SwitchA] interface vlan-interface 100
[SwitchA-Vlan-interface100] igmp group-policy 2001
[SwitchA-Vlan-interface100] quit
Verifying the configuration
# Display IGMP information on VLAN-interface 200 of Switch B.
[SwitchB] display igmp interface vlan-interface 200
Vlan-interface200(10.110.2.1):
IGMP is enabled.
IGMP version: 2
Query interval for IGMP: 125s
Other querier present time for IGMP: 255s
Maximum query response time for IGMP: 10s
Querier for IGMP: 10.110.2.1 (This router)
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