3Com S7906E Configuration Manual page 1216

# Configure GigabitEthernet 2/0/3 to be a static router port.
[SwitchA] interface gigabitethernet 2/0/3
[SwitchA-Gigabitethernet2/0/3] igmp-snooping static-router-port vlan 100
[SwitchA-Gigabitethernet2/0/3] quit
4) Configure Switch B
# Enable IGMP snooping globally.
<SwitchB> system-view
[SwitchB] igmp-snooping
[SwitchB-igmp-snooping] quit
# Create VLAN 100, assign GigabitEthernet 2/0/1 and GigabitEthernet 2/0/2 to this VLAN, and enable
IGMP snooping in the VLAN.
[SwitchB] vlan 100
[SwitchB-vlan100] port gigabitethernet 2/0/1 gigabitethernet 2/0/2
[SwitchB-vlan100] igmp-snooping enable
[SwitchB-vlan100] quit
5) Configure Switch C
# Enable IGMP snooping globally.
<SwitchC> system-view
[SwitchC] igmp-snooping
[SwitchC-igmp-snooping] quit
# Create VLAN 100, assign GigabitEthernet 2/0/1 through GigabitEthernet 2/0/5 to this VLAN, and
enable IGMP snooping in the VLAN.
[SwitchC] vlan 100
[SwitchC-vlan100] port gigabitethernet 2/0/1 to gigabitethernet 2/0/5
[SwitchC-vlan100] igmp-snooping enable
[SwitchC-vlan100] quit
# Configure GigabitEthernet 2/0/3 and GigabitEthernet 2/0/5 as static member ports for multicast group
224.1.1.1.
[SwitchC] interface gigabitethernet 2/0/3
[SwitchC-Gigabitethernet2/0/3] igmp-snooping static-group 224.1.1.1 vlan 100
[SwitchC-Gigabitethernet2/0/3] quit
[SwitchC] interface gigabitethernet 2/0/5
[SwitchC-Gigabitethernet2/0/5] igmp-snooping static-group 224.1.1.1 vlan 100
[SwitchC-Gigabitethernet2/0/5] quit
6) Verify the configuration
# Display the detailed IGMP snooping multicast group information in VLAN 100 on Switch A.
[SwitchA] display igmp-snooping group vlan 100 verbose
Total 1 IP Group(s).
Total 1 IP Source(s).
Total 1 MAC Group(s).
Port flags: D-Dynamic port, S-Static port, C-Copy port
Subvlan flags: R-Real VLAN, C-Copy VLAN
Vlan(id):100.
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