IGMP Snooping Configuration Examples 571
Configuration procedure
1 Configure the IP address of each interface
Configure an IP address and subnet mask for each interface as per Figure 172. The
detailed configuration steps are omitted.
2 Configure Router A
# Enable IP multicast routing, enable PIM-DM on each interface, and enable
IGMPv2 on GigabitEthernet 1/0/1.
<RouterA> system-view
[RouterA] multicast routing-enable
[RouterA] interface GigabitEthernet 1/0/1
[RouterA-GigabitEthernet1/0/1] igmp enable
[RouterA-GigabitEthernet1/0/1] pim dm
[RouterA-GigabitEthernet1/0/1] quit
[RouterA] interface GigabitEthernet 1/0/2
[RouterA-GigabitEthernet1/0/2] pim dm
[RouterA-GigabitEthernet1/0/2] quit
3 Configure Switch A
# Enable IGMP Snooping globally.
<SwitchA> system-view
[SwitchA] igmp-snooping
[SwitchA-igmp-snooping] quit
# Create VLAN 100, assign GigabitEthernet 1/0/1 through GigabitEthernet 1/0/4
to this VLAN, and enable IGMP Snooping in the VLAN.
[SwitchA] vlan 100
[SwitchA-vlan100] port GigabitEthernet 1/0/1 to GigabitEthernet 1/0/4
[SwitchA-vlan100] igmp-snooping enable
[SwitchA-vlan100] quit
# Enable simulated host joining on GigabitEthernet 1/0/3 and GigabitEthernet
1/0/4 respectively.
[SwitchA] interface GigabitEthernet 1/0/3
[SwitchA-GigabitEthernet1/0/3] igmp-snooping host-join 224.1.1.1 vlan 100
[SwitchA-GigabitEthernet1/0/3] quit
[SwitchA] interface GigabitEthernet 1/0/4
[SwitchA-GigabitEthernet1/0/4] igmp-snooping host-join 224.1.1.1 vlan 100
[SwitchA-GigabitEthernet1/0/4] quit
4 Verify the configuration
# View the detailed information about IGMP Snooping multicast groups 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, A-Aggregation port, C-Copy port
Subvlan flags: R-Real VLAN, C-Copy VLAN
Vlan(id):100.
Total 1 IP Group(s).
Total 1 IP Source(s).
Total 1 MAC Group(s).
Router port(s):total 1 port.
GE1/0/1 (D) ( 00:01:30 )
IP group(s):the following ip group(s) match to one mac group.
IP group address:224.1.1.1
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