3Com Switch 4800G 24-Port Configuration Manual page 576

576 C 42: IGMP S
HAPTER
C
NOOPING ONFIGURATION
[SwitchA-vlan100] igmp-snooping enable
[SwitchA-vlan100] igmp-snooping querier
# Set the source IP address of IGMP general queries and group-specific queries to
192.168.1.1.
[SwitchA-vlan100] igmp-snooping general-query source-ip 192.168.1.1
[SwitchA-vlan100] igmp-snooping special-query source-ip 192.168.1.1
2 Configure Switch B
# Enable IGMP Snooping globally.
<SwitchB> system-view
[SwitchB] igmp-snooping
[SwitchB-igmp-snooping] quit
# Create VLAN 100, add GigabitEthernet 1/0/1 through GigabitEthernet 1/0/3 to
VLAN 100, and enable IGMP Snooping in this VLAN.
[SwitchB] vlan 100
[SwitchB-vlan100] port GigabitEthernet 1/0/1 to GigabitEthernet 1/0/3
[SwitchB-vlan100] igmp-snooping enable
3 Configuration on Switch C
# Enable IGMP Snooping globally.
<SwitchC> system-view
[SwitchC] igmp-snooping
[SwitchC-igmp-snooping] quit
# Create VLAN 100, add GigabitEthernet 1/0/1 through GigabitEthernet 1/0/3 to
VLAN 100, and enable IGMP Snooping in this VLAN.
[SwitchC] vlan 100
[SwitchC-vlan100] port GigabitEthernet 1/0/1 to GigabitEthernet 1/0/3
[SwitchC-vlan100] igmp-snooping enable
4 Verify the configuration
# View the IGMP message statistics on Switch C.
[SwitchC-vlan100] display igmp-snooping statistics
Received IGMP general queries:3.
Received IGMPv1 reports:0.
Received IGMPv2 reports:4.
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.
Switch C received IGMP general queries. This means that Switch A works as an
IGMP-Snooping querier.