H3C S7500E Series Ethernet Switches Operation Manual

Operation Manual – Multicast
H3C S7500E Series Ethernet Switches Chapter 2 IGMP Snooping Configuration
2-24
z IGMP is required on Router A, IGMP Snooping is required on Switch A, and
Router A will act as the IGMP querier on the subnet.
z Perform the following configuration so that multicast data can be forwarded
through Ethernet 2/0/3 and Ethernet 2/0/4 even if Host A and Host B temporarily
stop receiving multicast data for some unexpected reasons.
II. Network diagram
Source
Router A Switch A
Receiver
Receiver
Host B
Host A
Host C
1.1.1.1/24
Eth2/0/4
Eth2/0/2
Eth2/0/3
IGMP querier
Eth2/0/1
Eth1/0/1
10.1.1.1/24
Eth1/0/2
1.1.1.2/24
Vlan100
Figure 2-3 Network diagram for simulated joining configuration
III. Configuration procedure
1) Configure the IP address of each interface
Configure an IP address and subnet mask for each interface as per
Figure 2-3. The
detailed configuration steps are omitted.
2) Configure Router A
# Enable IP multicast routing, enable PIM-DM on each interface, and enable IGMP on
Ethernet 1/0/1.
<RouterA> system-view
[RouterA] multicast routing-enable
[RouterA] interface ethernet 1/0/1
[RouterA-Ethernet1/0/1] igmp enable
[RouterA-Ethernet1/0/1] pim dm
[RouterA-Ethernet1/0/1] quit
[RouterA] interface ethernet 1/0/2
[RouterA-Ethernet1/0/2] pim dm
[RouterA-Ethernet1/0/2] quit
3) Configure Switch A
# Enable IGMP Snooping globally.