Verifying the configuration, Igmp snooping proxying configuration example, Network requirements – H3C Technologies H3C S12500 Series Switches User Manual
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[DeviceB-vlan100] port GigabitEthernet 3/0/1 to GigabitEthernet 3/0/4
# Enable IGMP snooping and the function of dropping unknown multicast traffic in VLAN 100.
[DeviceB-vlan100] igmp-snooping enable
[DeviceB-vlan100] igmp-snooping drop-unknown
[DeviceB-vlan100] quit
3.
Configure Device C and Device D in the same way as you configure Device B.
Verifying the configuration
After the IGMP snooping querier starts to work, all the devices but the querier can receive IGMP
general queries.
# Display the IGMP message statistics on Device B.
[DeviceB] display igmp-snooping statistics
Received IGMP general queries:3.
Received IGMPv1 reports:0.
Received IGMPv2 reports:12.
Received IGMP leaves:0.
Received IGMPv2 specific queries:0.
Sent IGMPv2 specific queries:0.
Received IGMPv3 reports:0.
Received IGMPv3 reports with right and wrong records:0.
Received IGMPv3 specific queries:0.
Received IGMPv3 specific sg queries:0.
Sent IGMPv3 specific queries:0.
Sent IGMPv3 specific sg queries:0.
Received error IGMP messages:0.
IGMP snooping proxying configuration example
Network requirements
As shown in
, Router A runs IGMPv2 and Switch A runs IGMPv2 snooping. Router A serves as
an IGMP querier.
Configure IGMP snooping proxying on Switch A so that Switch A can forward IGMP reports and leave
messages on behalf of attached hosts, respond to IGMP queries from Router A, and forward the queries
to the hosts on behalf of Router A.