1-32[SwitchA-vlan100] mld-snooping enable[SwitchA-vlan100] mld-snooping drop-unknown# Configure MLD snooping querier feature in VLAN 100.[SwitchA-vlan100] mld-snooping querier[SwitchA-vlan100] quit2) Configure Switch B# Enable IPv6 forwarding and enable MLD snooping globally. system-view[SwitchB] ipv6[SwitchB] mld-snooping[SwitchB-mld-snooping] quit# Create VLAN 100, add GigabitEthernet 2/0/1 through GigabitEthernet 2/0/4 into VLAN 100.[SwitchB] vlan 100[SwitchB-vlan100] port gigabitethernet 2/0/1 to gigabitethernet 2/0/4# Enable the MLD snooping feature and the function of dropping unknown IPv6 multicast data packetsin VLAN 100.[SwitchB-vlan100] mld-snooping enable[SwitchB-vlan100] mld-snooping drop-unknown[SwitchB-vlan100] quitConfigurations of Switch C and Switch D are similar to the configuration of Switch B.3) Verify the configurationWhen the MLD snooping querier starts to work, all the switches but the querier receive MLD generalqueries. Use the display mld-snooping statistics command to view the statistics information of theseMLD messages received.# Display the MLD message statistics on Switch B.[SwitchB-vlan100] display mld-snooping statisticsReceived MLD general queries:3.Received MLDv1 specific queries:0.Received MLDv1 reports:12.Received MLD dones:0.Sent MLDv1 specific queries:0.Received MLDv2 reports:0.Received MLDv2 reports with right and wrong records:0.Received MLDv2 specific queries:0.Received MLDv2 specific sg queries:0.Sent MLDv2 specific queries:0.Sent MLDv2 specific sg queries:0.Received error MLD messages:0.MLD Snooping Proxying Configuration ExampleNetwork requirementsAs shown in Figure 1-7,