Igmp snooping proxying configuration example, Network requirements – H3C Technologies H3C S3100V2 Series Switches User Manual
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# Set the source IP address of IGMP general queries and group-specific queries to 192.168.1.1 in VLAN
100.
[SwitchA-vlan100] igmp-snooping general-query source-ip 192.168.1.1
[SwitchA-vlan100] igmp-snooping special-query source-ip 192.168.1.1
[SwitchA-vlan100] quit
2.
Configure Switch B
# Enable IGMP snooping globally.
[SwitchB] igmp-snooping
[SwitchB-igmp-snooping] quit
# Create VLAN 100, and assign Ethernet 1/0/1 through Ethernet 1/0/4 to the VLAN.
[SwitchB] vlan 100
[SwitchB-vlan100] port ethernet 1/0/1 to ethernet 1/0/4
# Enable IGMP snooping.
[SwitchB-vlan100] igmp-snooping enable
[SwitchB-vlan100] quit
Configurations on Switch C and Switch D are similar to the configuration on Switch B.
3.
Verify the configuration
After the IGMP snooping querier starts to work, all the switches but the querier can receive IGMP general
queries. Use the display igmp-snooping statistics command to view the statistics information about the
IGMP messages received.
# Display the IGMP message statistics on Switch B.
[SwitchB] 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 connects to a multicast source through port Ethernet 1/0/2, and to
Switch A through port Ethernet 1/0/1. Router A runs IGMPv2 and Switch A runs IGMPv2 snooping.
Router A serves as an IGMP querier.